1991 Cadillac Eldorado Ignition and Tune-Up Products
Find Your Specific 1991 Cadillac Eldorado Ignition and Tune-Up Products
Below you will find various in-demand Cadillac Ignition and Tune-Up Products, components and accessories for your 1991 Eldorado. Advance Auto Parts has popular Eldorado parts like Distributors, Ignition Coils and Boots, Ignition Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Eldorado model years including
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001,
2002 and more. Select a category of 1991 Cadillac Eldorado Ignition and Tune-Up Products below and start saving instantly.
Popular 1991 Cadillac Eldorado Ignition and Tune-Up Products Categories
Essential Ignition and Tune-Up Products for 1991 Cadillac Eldorados
Carquest Premium – Carquest Alternator Brush Holder, XAC1044 (Part No.XAC1044)
from
$14.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
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Carquest Premium – Carquest Distributor Cap, CAE1187 (Part No.CAE1187)
from
$27.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Tapered Seat, 42008 (Part No.42008)
from
$10.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.
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NGK – NGK V-Power Nickel Spark Plug (UR45): Reliable Performance & Ignitability, 6945 (Part No.6945)
from
$6.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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Mallory – Mallory Prosidewinder 90F Univ. Wire Set, 937 (Part No.937)
from
$155.99
As you’d expect from the trusted Mallory name, the 8mm red silicon jacket withstands temperatures up to 550 DegF and looks great under the hood.
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NGK – NGK Premium OE Fit & Design Spark Plug Wire Set: Ferrite Mag Core, 8 Leads, 51372 (Part No.51372)
from
$35.99
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding over premium ferrite magnetic core delivers ultra-low resistance, a more powerful spark and excellent EMI/RFI noise suppression. OE or better specified spark plug and distributor boots ensure the highest quality fit, performance and durability in every application. Spark plug boots are glued to NGK cable with a silicone sealer for a watertight seal. Stainless steel terminals utilizing up to 3 serrated crimps bite into cable jacket and inner insulation for the highest terminal retention strength (wherever possible). Locking C-shaped spring clip with corrosion-resistant plating ensures a secure and positive spark plug terminal connection.
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Carquest Premium – Carquest New Ignition Modules, CBE1022 (Part No.CBE1022)
from
$69.99
CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.
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Carquest Premium – Carquest Ignition Coil Ground Strap, DLA1034 (Part No.DLA1034)
from
$6.99
The Ignition Coil Ground Strap is designed to ground the ignition coil laminations and prevent lost power from the ignition coil.
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MSD Ignition – MSD Ignition Ignition Coil, Blaster 2, High-Performance, Black, 82023 (Part No.82023)
from
$55.99
Our famous red canister coil in black. Great choice with an MSD 6-series ignition.
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Carquest Premium – Carquest Distributor Cap Cover, CAC1073 (Part No.CAC1073)
from
$31.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest Premium – Carquest Multi-Use Connector, PTA1539 (Part No.PTA1539)
from
$85.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Carquest Premium – Carquest Multi-Use Connector, PTA1125 (Part No.PTA1125)
from
$38.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Driveworks – Driveworks Distributor Rotor, 23045 (Part No.23045)
from
$11.05
Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.
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Carquest Premium – Carquest Distributor T1864: 100% New, With Cap and Rotor (Part No.T1864)
from
$192.99
Carquest Premium distributors are built to meet or exceed the original equipment (OE) specifications for each application. Our distributors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each distributor is supplied with the cap, rotor and any seals needed for installation. Carquest Premium distributors are 100% new and undergo extensive validation testing to ensure long-lasting ignition performance and reliability.
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NGK – NGK Coil on Plug Boot, 58903 (Part No.58903)
from
$14.79
NGK Coil on Plug Boots are built to stringent OEM tolerances, combining original equipment fit, design and outstanding durability. NGK Coil on Plug Boots are manufactured using only premium silicone and always include any required internal springs and ferrite resistors for superior performance and RFI noise suppression. Bridging the important link between ignition coil and spark plug, COP boots should always be replaced with NGK Coil on Plug Boots at the time as changing spark plugs to prevent ignition problems such as flashover.
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Carquest Premium – Carquest Spark Plug Wire Set: 9 Wires, Increased performance, Designed for direct fit, 35-8334 (Part No.35-8334)
from
$35.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
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Carquest Premium – Carquest Distributor Ignition Pickup, MEA2432 (Part No.MEA2432)
from
$101.99
The distributor is just one piece of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest Premium – Carquest Distributor Ignition Pickup, MEA2302 (Part No.MEA2302)
from
$59.99
The distributor is just one piece of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Sylvania – Sylvania 168 SilverStar: Mini Bulb, High Performance, 2 Pack, 168STBP2 (Part No.168STBP2)
from
$13.99
The SYLVANIA SilverStar high performance miniature bulbs deliver a brighter, whiter light when compared to SYLVANIA Long Life. SYLVANIA achieves this using a specially designed filament, propriety gas mixture and a lamp coating that shifts the color temperature towards a whiter light. A brighter light can improve visibility in your interior lighting applications and increase your visibility to other drivers when braking or turning.
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Sylvania – Sylvania 53 Long Life: Mini Bulb, Standard Performance, 2 Pack, 53LLBP2 (Part No.53LLBP2)
from
$11.99
SYLVANIA Long Life miniature bulbs provide standard performance for your car or truck’s interior and exterior auxiliary lighting. Ideal for use in your car’s back up/reverse, trunk, dome lights and more, Long Life bulbs are a direct replacement for your vehicle. Designed for durability, lower maintenance, and safety in mind.
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Carquest Premium – Carquest Distributor Cap Carbon Button, CAA1216 (Part No.CAA1216)
from
$14.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest Premium – Carquest Ignition Switch, CSC2012 (Part No.CSC2012)
from
$65.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Carquest Premium – Carquest Ignition Switch, CSC2136 (Part No.CSC2136)
from
$84.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Ignition Switch allows for reliable control of the vehicle’s electrical systems and engine start-up, enhancing convenience and ensuring consistent performance during operation. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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PerTronix – PerTronix 91181 Ignitor II Adaptive Dwell Control Delco 8 cyl (Part No.91181)
from
$191.99
The Ignitor II provides increased starting voltage with adaptive dwell control. Ignitor Module Kits are extremely easy to install and fit into your original distributor to maintain your stock look. No additional ignition box is required keeping a clean look under the hood. Ignitors are available for most distributors that came with mechanical breaker points and will cover AUTOMOTIVE, MARINE, INDUSTRIAL and AGRICULTURE applications.
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Carquest Premium – Carquest Ignition Conversion Kit, CBA1702 (Part No.CBA1702)
from
$359.99
The Ignition Conversion Kit allows point type ignition systems to be converted to an electronic ignition type system. These universal kits are designed to fit directly into the current distributor with little modification required.
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MSD Ignition – MSD Ignition Wire Set – Universal Street Fire, 8-Cylinder, 90 Degree, Socket/Hei, 5553 (Part No.5553)
from
$81.99
The Street Fire Spark Plug Wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve.
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MSD Ignition – MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle/Hei, Universal, 31183 (Part No.31183)
from
$160.99
Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal with the supplied Mini-Stripper-Crimper. It’s a little more work, but in the end it will be worth it.
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ACDelco – ACDelco Specific FitSpark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core, 9628B (Part No.9628B)
from
$89.99
ACDelco Professional Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are a high quality replacement for many vehicles on the road today. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plugs. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.
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Upgrade your 1991 Cadillac Eldorado with Top-Quality Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 1991 Cadillac Eldorado, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Cadillac or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Eldorado functioning at its best. At Advance Auto Parts, we offer a wide selection of 68 Ignition and Tune-Up Products for the 1991 Cadillac Eldorado, designed to meet your needs without breaking the bank.
From
Distributor
replacements to
Ignition Coils and Boots
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 1991 Cadillac Eldorado at great prices.
Our Ignition and Tune-Up Products inventory for this model
ranges from just $2.79 to $192.99, with
an average price of $53.87.
Our 68 Ignition and Tune-Up Products in stock come from 17 trusted brands, so you’re sure to find the right part for your 1991 Cadillac Eldorado without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1991 Cadillac Eldorado, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names
like Champion, ACDelco, MSD Ignition, and more.
Champion Ignition and Tune-Up Products
start at just $2.79 and boast an impressive 4.8 stars average rating from customers.
ACDelco and MSD Ignition also bring quality to the table, with Ignition and Tune-Up Products available starting at $6.49, and at an average 4.7 stars rating.
With 1,443 customer reviews and counting, our 1991 Cadillac Eldorado Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1991 Cadillac Eldorado is always ready to roll. We’re committed to providing you with everything you need to keep your Eldorado in top shape, all in one place.
Start shopping confidently below for your 1991 Cadillac Eldorado!
Best-Selling Distributors for 1991 Cadillac Eldorados
Enhance the driving experience in your Cadillac with 13 quality Distributor components, starting at $7.99.
ACDelco – ACDelco Ignition Distributor Rotor, D448X (Part No.D448X)
from
$19.99
ACDelco Professional Distributor Rotor is a high quality aftermarket replacement component for one or more of the following vehicle systems: cooling, hvac, ignition, starting and charging, body-electrical and lighting, wiper and washer, andor engine fuel management. This premium aftermarket rotor is manufactured to meet or exceed your expectations for fit, form, and function.
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Driveworks – Driveworks Distributor Rotor, 23045 (Part No.23045)
from
$11.05
Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.
See More
ACDelco – ACDelco Ignition Distributor Cap, D338X (Part No.D338X)
from
$29.99
ACDelco Professional Distributor Cap is a high quality aftermarket replacement component for one or more of the following vehicle systems: cooling, hvac, ignition, starting and charging, body-electrical and lighting, wiper and washer, andor engine fuel management. This premium aftermarket cap is manufactured to meet or exceed your expectations for fit, form, and function.
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Carquest Premium – Carquest Distributor Rotor, DAA1001 (Part No.DAA1001)
from
$17.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest – Carquest Distributor Rotor, 23A1006 (Part No.23A1006)
from
$13.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine€™s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest Premium – Carquest Distributor Cap, CAE1187 (Part No.CAE1187)
from
$27.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest – Carquest Distributor Cap, 24E1025 (Part No.24E1025)
from
$19.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine€™s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
See More
Carquest Premium – Carquest Distributor T1864: 100% New, With Cap and Rotor (Part No.T1864)
from
$192.99
Carquest Premium distributors are built to meet or exceed the original equipment (OE) specifications for each application. Our distributors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each distributor is supplied with the cap, rotor and any seals needed for installation. Carquest Premium distributors are 100% new and undergo extensive validation testing to ensure long-lasting ignition performance and reliability.
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ACDelco – ACDelco Ignition Distributor Cover, 1875960X (Part No.1875960X)
from
$19.49
ACDelco Professional Distributor Cap Cover is a high quality aftermarket replacement component for one or more of the following vehicle systems: cooling, hvac, ignition, starting and charging, body-electrical and lighting, wiper and washer, and/or engine fuel management. This premium aftermarket cover is manufactured to meet or exceed your expectations for fit, form, and function.
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Carquest Premium – Carquest Distributor Cap Cover, CAC1073 (Part No.CAC1073)
from
$31.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
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Carquest Premium – Carquest Distributor Cap and Rotor Kit, CAE1802 (Part No.CAE1802)
from
$21.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
See More
Carquest Premium – Carquest Distributor Cap Carbon Button, CAA1216 (Part No.CAA1216)
from
$14.99
The distributor cap & rotor are just two pieces of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.
See More
Carquest Premium – Carquest Alternator Brush Holder, XAA1069 (Part No.XAA1069)
from
$7.99
The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.
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Most Popular 1991 Cadillac Eldorado Ignition Coils and Boots
Customize your Cadillac with 8 Ignition Coils and Boots products
like Ignition Coils,
Ignition Coil Boots, and
Ignition Coil Connectors, all
priced under $145.99.
Accel – Accel Ignition Coil – SuperCoil – HEI in-cap 1973-1991 – Red/Yellow primary wire – This HEI in-cap has a maximum voltage of 45,000V. Typical HEI ap… (Part No.140003)
from
$99.99
Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. No need to remove or re-time distributor. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring.
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MSD Ignition – MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle, Universal, 31193 (Part No.31193)
from
$145.99
Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal with the supplied Mini-Stripper-Crimper. It’s a little more work, but in the end it will be worth it.
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Accel – Accel Spark Plug Wire Set – 8mm – Universal – Blue Wire with Blue Straight Boots – 5040B 8mm super stock spark plug wires feature a spiral core and… (Part No.5040B)
from
$103.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these SuperStock Spiral Core 5000 Series wire sets, which feature color-matched wire and spark plug boots in blue, black, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. The results is higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire’s double silicone construction is rated to 550 degrees F. The high-gloss wire jacket resists moisture, chemicals, and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Both universal and custom-fit applications are available for early and late model cars and trucks.
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MSD Ignition – MSD Ignition Wire Set – Black Super Conductor, Universal 8-Cylinder, 90 Degree Plug, 31223 (Part No.31223)
from
$145.99
Routing spark plug wires is an art form. It takes patience and time to route your wires away from the headers, through separators and to the distributor cap. Some wire sets fit perfect, but a lot of people want to build their own so they can route them exactly how they see fit.
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Carquest Premium – Carquest Ignition Coil, EBC1492 (Part No.EBC1492)
from
$39.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
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Carquest Premium – Carquest Multi-Use Connector, ABA3459 (Part No.ABA3459)
from
$23.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More
GM Genuine Parts – GM Genuine Parts Ignition Coil, D505A (Part No.D505A)
from
$121.99
GM Genuine Parts Ignition Coils are designed, engineered, and tested to rigorous standards, and are backed by General Motors. It increases electrical system voltage to help ignite the air/fuel mixture as the starting and charging system starts the engine, maintains the battery’s charge, and provides power to the electrical accessories while the engine is running. A GM Genuine Parts Ignition Coil uses pure copper windings to improve durability and provide higher resistance to internal shorts and dielectric breakdown. Because the number and shape of the laminations determine the output characteristics of an ignition coil, ACDelco ensures that the silicone steel plates surrounding the coil correctly match the original part size and number. Since steel laminations work best when they are new, shiny, and clean, ACDelco laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Carquest Premium – Carquest Ignition Coil Ground Strap, DLA1034 (Part No.DLA1034)
from
$6.99
The Ignition Coil Ground Strap is designed to ground the ignition coil laminations and prevent lost power from the ignition coil.
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Top Picks for 1991 Cadillac Eldorado Ignition Boots
Upgrade Cadillac Eldorados with top-quality Ignition Boots parts, including 3 OEM and aftermarket selections for your 1991 model.
Accel – Accel Spark Plug Wire Set- 8mm – Blue Wire with Blue Straight Boots – 4040B, Spark Plug Wires, Super Stock, Spiral Core, 8mm, Blue, Set (Part No.4040B)
from
$71.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.
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Accel – Accel Spark Plug Wire Set- 8mm – Black Wire with Black Straight Boots – 4040K, Spark Plug Wires, Super Stock, Spiral Core, 8mm, Black, Set (Part No.4040K)
from
$71.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.
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Carquest Premium – Carquest Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit, 35-8111 (Part No.35-8111)
from
$39.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
See More
In-Demand Spark Plugs for 1991 Cadillac Eldorados
Select from 25 premium Spark Plugs parts for your 1991 Cadillac Eldorado, with prices ranging from $2.79 to $31.79.
NGK – NGK Iridium IX Spark Plug (TR55IX): Outstanding Acceleration & Durability, 7164 (Part No.7164)
from
$14.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-902 (Part No.41-902)
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$11.49
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
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Motorcraft – Motorcraft Double Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-486 (Part No.SP-486)
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$7.29
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. With a platinum center and ground electrode tip, they are resistant to oxidation and arc erosion, ensuring long-lasting performance. The multi-rib insulator protects against misfire, and they are backed by Motorcraft’s Service Parts Warranty. Designed for exact fit in Ford, Lincoln, and Mercury vehicles, they also help prevent false check engine lights. With service intervals of up to 100,000 miles, Motorcraft Spark Plugs are crafted from high-quality materials to deliver reliable performance for almost any application, making them the same components that were in the vehicle when it was manufactured.
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DENSO – DENSO U-Groove Spark Plug: OE Performance, T16EPR-U15, 5023 (Part No.5023)
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$3.99
The U-Groove Spark Plug with its patented U-groove ground electrode design ensures superior ignitability, allowing your engine to fire leaner mixtures for enhanced efficiency and performance. Built with a durable nickel center electrode tip, it delivers long-lasting performance while improving fuel consumption and emission gas purification. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for use in delicate aluminum heads. Designed to last twice as long as most conventional plugs, this spark plug is 100% pre-fired to guarantee reliable operation from the start. Its tapered seat type ensures a secure fit, and with a wide range of part numbers available, its compatible with thousands of applications, including classic and collector cars. Whether you’re maintaining a daily driver or restoring a vintage vehicle, this spark plug offers OE performance and exceptional value.
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ACDelco – ACDelco Conventional Spark Plug, R45LTS6 (Part No.R45LTS6)
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$6.49
ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
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Dorman – Help – Dorman – Help Spark Plug Non-Foulers – 14mm Tapered Seat, 42008 (Part No.42008)
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$10.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.
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Champion – Champion Iridium Spark Plug RS14WYPB5 – Maximum Performance & Longevity, 9404 (Part No.9404)
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$11.49
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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NGK – NGK V-Power Nickel Spark Plug (TR55): Enhanced Ignitability & Performance, 3951 (Part No.3951)
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$7.49
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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NGK – NGK G-Power Platinum Spark Plug (TR55GP): Enhanced Durability & Efficiency, 3403 (Part No.3403)
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$8.99
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT, 4713 (Part No.4713)
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$15.49
Durability of an OE style plug combined with Power & Torque of high performance.
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Autolite – Autolite Platinum Spark Plug (AP605): Enhanced Durability & Performance (Part No.AP605)
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$5.49
The Platinum Spark Plug (AP605) is expertly crafted to deliver enhanced durability and performance for older engine applications. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while preventing gap erosion for a longer service life. Its high alumina ceramic insulator provides superior thermal conductivity and insulation, boosting strength and reliability under demanding conditions. The multi-rib insulator design effectively prevents flash-over, while the nickel-plated shell offers exceptional corrosion resistance, extending the plug’s lifespan. With a mid-projection standard center electrode and a tapered seat type, this performance-grade spark plug is built to optimize engine functionality. The combination of platinum and nickel materials in the electrode tips ensures consistent performance and durability, making it a dependable choice for maintaining acceleration and overall engine efficiency.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 605 (Part No.605)
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$4.49
Autolite Copper spark plugs are designed to provide quick starts and reliable performance, making them an essential upgrade for your vehicle. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are engineered for extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation strength. With a nickel-plated shell, these plugs resist corrosion, offering long-lasting durability. The tapered seat design ensures a perfect fit for easy and reliable installation. Built with a mid-projection standard center electrode and nickel tip materials, these regular-grade spark plugs deliver dependable performance. Equipped with a resistor, they are tailored to meet the demands of modern engines, providing the power and efficiency your vehicle needs.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16, 5325 (Part No.5325)
ACDelco – ACDelco RAPIDFIRE Spark Plug, 14 (Part No.14)
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$7.99
ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP605 (Part No.APP605)
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$7.49
The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, maintaining durability under high temperatures and pressure. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is built to handle demanding conditions. Both the center and ground electrode tips are crafted from platinum, ensuring consistent ignition and enhanced efficiency. Designed to deliver value and reliability, this spark plug is a smart upgrade for those seeking improved engine performance and longevity.
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Champion – Champion Copper Plus Spark Plug RS14YC6 – Dependable Performance & Durability, 13 (Part No.13)
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$2.79
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PT16EPR-L13, 5070 (Part No.5070)
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$12.49
Manufactured to the strictest OE performance, durability and emissions standards.
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Champion – Champion Double Platinum Power Spark Plug RS14PYPB5 – Enhanced Durability & Performance, 7940 (Part No.7940)
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$8.89
Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Platinum TT Spark Plug – PT16TT, 4511 (Part No.4511)
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$6.99
The Platinum TT Spark Plug with its innovative Twin-Tip design ensures faster flame propagation, promoting more complete combustion for enhanced engine performance and efficiency. Crafted with a durable platinum center electrode tip, this spark plug offers exceptional longevity and consistent performance, making it a reliable choice for your vehicle. Its tapered seat type ensures a secure fit, reducing the risk of gas leakage and optimizing combustion chamber sealing. Designed for precision and durability, this spark plug not only improves ignition efficiency but also contributes to smoother engine operation and potentially better fuel economy. A perfect blend of advanced technology and robust materials, it delivers excellent value for drivers seeking long-lasting performance and reliability.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.62 (Part No.E3.62)
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$8.49
“The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “”diamond-shaped”” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger and faster flame kernel. This translates to improved power output by up to 6% on average and greater fuel efficiency, reducing engine carbon deposits and saving you money at the pump. Constructed with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Its tapered seat design ensures a secure fit, and the pre-gapped configuration eliminates the need for adjustments, making installation hassle-free. Upgrade to the DiamondFire Spark Plug for cleaner combustion, enhanced engine performance, and long-term reliability.”
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP605 (Part No.XP605)
from
$11.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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Accel – Accel Double Platinum Shorty Spark Plug – 14mm Thread, .708 in Reach, Tapered Seat – Single, P526S (Part No.P526S)
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$31.79
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Accel – Accel HP Copper Spark Plug – 14mm Thread – .708 in Reach – Tapered Seat – 4 Pack, 0526-4 (Part No.0526-4)
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$25.29
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Motorcraft – Motorcraft Spark Plug: Fine Wire Design for Enhanced Ignition Efficiency, SP-486-X (Part No.SP-486-X)
from
$7.99
The fine wire design of this spark plug ensures enhanced ignition efficiency, delivering reliable performance for your engine. Featuring a platinum center electrode tip, it offers superior durability and consistent spark generation, while the nickel ground electrode tip adds to its robust construction. The tapered seat type ensures a secure fit, reducing the risk of gas leakage and optimizing combustion. This spark plug is engineered to provide long-lasting performance, making it a cost-effective choice for maintaining your vehicle’s ignition system. Whether you’re looking to improve fuel efficiency or ensure smooth engine operation, this high-quality spark plug is designed to meet your needs with precision and reliability.
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Most Sold 1991 Cadillac Eldorado Ignition Wires
Explore our best-selling Cadillac parts for the 1991 Eldorado among 9 OEM and aftermarket options starting from $71.99.
MSD Ignition – MSD Ignition Wire Set – Super Conductor, Multi-Angle Plug, Hei Cap, 31189 (Part No.31189)
from
$145.99
Routing spark plug wires is an art form. It takes patience and time to route your wires away from the headers, through separators and to the distributor cap. Some wire sets fit perfect, but a lot of people want to build their own so they can route them exactly how they see fit.
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Mallory – Mallory Prosidewinder 135F Univ/Wire Set, 947 (Part No.947)
from
$170.99
The spiral wound alloy core provides low resistance ensuring maximum energy transfer to the spark plugs while high noise suppression keeps noise interference out of on-board electronics.
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MSD Ignition – MSD Ignition Wire Set – Super Conductor, 8-Cylinder, 90 Degree Plug/90 Degree Plug, 31229 (Part No.31229)
from
$145.99
Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal with the supplied Mini-Stripper-Crimper. It’s a little more work, but in the end it will be worth it.
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MSD Ignition – MSD Ignition Wire Set – Street Fire, V8 Multi-Angle, Socket/HEI, Universal, 5551 (Part No.5551)
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$81.99
The Street Fire Spark Plug Wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve.
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MSD Ignition – MSD Ignition Wire Set – Universal Street Fire, 8-Cylinder, Hei/90 Degree, 5552 (Part No.5552)
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$81.99
The Street Fire Spark Plug Wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve.
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ACDelco – ACDelco Specific FitSpark Plug Wire Set: Fiberglass Reinforced Latex Graphite Core, 9628B (Part No.9628B)
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$89.99
ACDelco Professional Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are a high quality replacement for many vehicles on the road today. The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plugs. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.
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Mallory – Mallory Prosidewinder 90F Univ. Wire Set, 937 (Part No.937)
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$155.99
As you’d expect from the trusted Mallory name, the 8mm red silicon jacket withstands temperatures up to 550 DegF and looks great under the hood.
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Accel – Accel Spark Plug Wire Set- 8mm – Red Wire with Red Straight Boots – 4040R, Spark Plug Wires, Super Stock, Spiral Core, 8mm, Red, Set (Part No.4040R)
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$71.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.
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MSD Ignition – MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle/Hei, Universal, 31183 (Part No.31183)
from
$160.99
Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal with the supplied Mini-Stripper-Crimper. It’s a little more work, but in the end it will be worth it.
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Top-Rated Ignition and Tune-Up Products Brands For Your 1991 Cadillac Eldorado
Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 1991 Cadillac Eldorados. Below you’ll find some of our best rated Ignition and Tune-Up Products from Champion, ACDelco, and MSD Ignition, and more. Ignition and Tune-Up Products from these brands that fit a 1991 Eldorado start at just $2.79 and are rated as high as 4.8 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.
Popular Champion 1991 Cadillac Eldorado Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 1991 Cadillac Eldorado, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. Champion ticks all of those boxes. We offer a wide selection of Champion Ignition and Tune-Up Products, specifically designed for the 1991 Cadillac Eldorado. With over 3 Champion brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $2.79, with an average price of just $7.72. Plus, with over 13 customer reviews and an average rating of 4.8 stars, you can trust that our Champion Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$2.79
(7)
Champion Copper Plus Spark Plug RS14YC6 – Dependable Performance & Durability, 13
“Great.”
from
$8.89
(4)
Champion Double Platinum Power Spark Plug RS14PYPB5 – Enhanced Durability & Performance, 7940
“Good people, good parts, good price, good times!”
from
$11.49
(2)
Champion Iridium Spark Plug RS14WYPB5 – Maximum Performance & Longevity, 9404
“These plugs are the best and If you gap them right you will notice improvement in everything. Be sure on all plug that are Iridium do not gap the plug”
Popular ACDelco 1991 Cadillac Eldorado Ignition and Tune-Up Products
ACDelco auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 1991 Cadillac Eldorado owner should feel confident when installing genuine ACDelco parts in their vehicle. To ensure the best fit and performance for your 1991 Eldorado, Advance Auto Parts carries a full inventory of 3 ACDelco Ignition and Tune-Up Products. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these ACDelco Ignition and Tune-Up Products range from $6.49 to $19.99, plus, with more than 50 customer reviews and an impressive 4.7 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.
from
$19.99
(12)
ACDelco Ignition Distributor Rotor, D448X
“Looks and fits good like it should. I like ACdelco parts”
from
$6.49
(3)
ACDelco Conventional Spark Plug, R45LTS6
“Great OEM replacement for vehicles with original cooper plugs. Always stick with AC Delco for GM car parts !”
FAQs for 1991 Cadillac Eldorado Ignition and Tune-Up Products
Which Ignition and Tune-Up Products are best-sellers for 1991 Cadillac Eldorados?
Out of 68 Ignition and Tune-Up Products that fit 1991 Cadillac Eldorados, the following parts are the top sellers:
- ACDelco Double Platinum Spark Plug, 41-902 (5532345) – $11.49
- DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT, 4713 (10713000) – $15.49
- Autolite Platinum Spark Plug (AP605): Enhanced Durability & Performance (5393949) – $5.49
What’s the price range for 1991 Cadillac Eldorado Ignition and Tune-Up Products?
Ignition and Tune-Up Product prices for the 1991 Cadillac Eldorado start at $2.79 and go up to $192.99 for the most premium parts.
What’s the average price of a Ignition and Tune-Up Product for a 1991 Cadillac Eldorado?
The average price for Ignition and Tune-Up Products for the 1991 Cadillac Eldorado is $53.87. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Ignition and Tune-Up Products for other Cadillac Eldorado model years?
What are the cheapest Ignition and Tune-Up Products for my 1991 Cadillac Eldorado?
The cheapest 1991 Cadillac Eldorado Ignition and Tune-Up Products we carry in stock are:
- Champion Copper Plus Spark Plug RS14YC6 – Dependable Performance & Durability, 13 (5470001) – $2.79
- DENSO U-Groove Spark Plug: OE Performance, T16EPR-U15, 5023 (20650487) – $3.99
- Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 605 (5392276) – $4.49
- Motorcraft Spark Plug: Reliable Ignition with Nickel Electrode Design, SP-446-AX (50012477) – $4.79
- Autolite Platinum Spark Plug (AP605): Enhanced Durability & Performance (5393949) – $5.49
What are the top-rated Ignition and Tune-Up Products that fit the 1991 Cadillac Eldorado?
Out of 1,443 reviews by customers, our 1991 Cadillac Eldorado Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 1991 Cadillac Eldorado and their top-rated products:
- Ignition Coils and Boots
- Accel Ignition Coil – SuperCoil – HEI in-cap 1973-1991 – Red/Yellow primary wire – This HEI in-cap has a maximum voltage of 45,000V. Typical HEI ap… (6900054) – $99.99
- MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle, Universal, 31193 (10211601) – $145.99
- Accel Spark Plug Wire Set – 8mm – Universal – Blue Wire with Blue Straight Boots – 5040B 8mm super stock spark plug wires feature a spiral core and… (6900348) – $103.99
- Spark Plugs
- Accel Ignition Coil – SuperCoil – HEI in-cap 1973-1991 – Red/Yellow primary wire – This HEI in-cap has a maximum voltage of 45,000V. Typical HEI ap… (6900054) – $99.99
- MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle, Universal, 31193 (10211601) – $145.99
- Accel Spark Plug Wire Set – 8mm – Universal – Blue Wire with Blue Straight Boots – 5040B 8mm super stock spark plug wires feature a spiral core and… (6900348) – $103.99
- Ignition Switches
- Accel Ignition Coil – SuperCoil – HEI in-cap 1973-1991 – Red/Yellow primary wire – This HEI in-cap has a maximum voltage of 45,000V. Typical HEI ap… (6900054) – $99.99
- MSD Ignition Wire Set – Black Super Conductor, 8-Cylinder, Multi-Angle, Universal, 31193 (10211601) – $145.99
- Accel Spark Plug Wire Set – 8mm – Universal – Blue Wire with Blue Straight Boots – 5040B 8mm super stock spark plug wires feature a spiral core and… (6900348) – $103.99
What types of Ignition and Tune-Up Products do you sell for my 1991 Cadillac Eldorado?
As of 8/2/26, these are some of the most in-demand types of Ignition and Tune-Up Products for a 1991 Cadillac Eldorado:
Can I get help with 1991 Cadillac Eldorado Ignition and Tune-Up Product orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Ignition and Tune-Up Products and more.
What is your return policy for Cadillac Eldorado Ignition and Tune-Up Products?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
