Essential Ignition and Tune-Up Products for 1991 Audi Coupe Quattros

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$15.79

Original equipment manufacturer approved NGK Laser Platinum spark plugs provide high ignitibility and longer service life compared to conventional spark plugs. Recommended for modern vehicles using distributorless ignition systems (DIS) for enhanced plug service life, these spark plugs feature dual-platinum surfaces that ensure a slower wear rate while providing a more stable idle, superior anti-fouling, improved fuel efficiency, and lower emissions. The platinum center electrode tip and gasket seat type further contribute to their exceptional performance and durability.

Product Features:

Recommended for modern vehicles using distributorless ignition systems (DIS) for enhanced plug service life
Enhanced Ignitibility: The NGK Laser Platinum Spark Plug is designed to provide superior ignitibility, ensuring reliable engine starts and smooth performance.
Longer Service Life: Featuring dual-platinum surfaces, these spark plugs offer a slower wear rate, resulting in a significantly longer service life compared to conventional spark plugs.
Improved Fuel Efficiency: The advanced design of the NGK Laser Platinum Spark Plug helps improve fuel efficiency, making it an ideal choice for modern vehicles.
Superior Anti-Fouling: With its platinum center electrode tip, this spark plug provides excellent anti-fouling properties, ensuring consistent performance over time.
Lower Emissions: The NGK Laser Platinum Spark Plug contributes to lower emissions, supporting a cleaner and more environmentally friendly driving experience.

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$6.21

The Bosch Super Plus Spark Plug utilizes an yttrium enhanced copper core center electrode, making it one of the longest lasting copper core spark plug on the market – by 50% versus even OE plugs. Bosch Super Plus also features a tapered, v-profile ground electrode for improved cold starts and better fuel ignitability. Center Electrode Core Material: Nickel-Yttrium and Copper – Center Electrode Tip Material: Nickel-Yttrium – Ground Electrode Tip Material: Nickel-Chromium

Product Features:

OE-Equivalent and direct fit application.
Heavy-duty yttrium-enhanced copper core center electrode.
Tapered, v-profile nickel chromium ground electrode.
Nickel-plated rolled threads.
Metal glass fused resistor.
Angular, five-ribbed insulator design.
Electrode gap is factory set and never requires adjustment.
Anti-seize and corrosion protection. Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines

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$3.79

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:

Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
Multi-rib insulator reduces danger of “flash-over”
One-piece terminal post adds strength
Resistor reduces radio frequency interference (RFI) and electrode erosion

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$18.38

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

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$11.05

The Intermotor brand has built its reputation by engineering and distributing a full line of genuine import parts – parts that are unrivaled for quality, original look, fit, form & function, as well as coverage.

Product Features:

Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation
Advanced circuitry protects the system from stray electro-magnetic fields and power spikes
Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output
Capitalizing on decades of research and development, our distributor caps and rotors contain unmatched quality yielding superior performance
BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product

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$10.49

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$8.27

The task of the wire end plug is to provide a reliable connection and transfer the electrical power – under extreme operating conditions. BERU connectors are designed in accordance with OEM requirements and equipped with original connecting pieces – irrespective of whether as a spark plug connector, ignition coil connector or distributor connector.

Product Features:

Premium Original Equipment replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$94.99

Benefits of Bosch original equipment quality ignitions coils include the right ignition voltage, long lasting spark, better engine running conditions, lower fuel consumption, and reduced exhaust emissions.

Product Features:

Meets or exceeds OEM specification
Ensures reliable voltage for smooth engine performance

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$28.99

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$53.82

Bosch Distributor Caps and Rotors are made from top quality materials throughout to ensure high performance and long product life.

Product Features:

Superior Surface Finish
RFI Resistors (Asian) / RFI Suppression (European)
Installation Screws
Precision-machined Contacts
Finely -tooled Metal Mounting Sleeve (Asian)

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$9.99

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.

Product Features:

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles.
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$328.99

Spark Plug Wire Set

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$50.99

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$17.70

NGK Laser Platinum spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. The platinum disc welded to backside of ground electrode provides long life, faster starts and quicker acceleration. Laser Platinum spark plugs provide high ignitability and longer service life.

Product Features:

Laser welded Platinum center electrode tip
Platinum disc welded to backside of ground electrode provides long life
Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
Faster starts and quicker acceleration
Better fuel economy and lower emissions
Best Platinum spark plug available
Original Equipment Manufacturer approved design

Top Picks for 1991 Audi Coupe Quattro Spark Plugs

Upgrade Audi Coupe Quattros with top-quality Spark Plugs parts, including 31 OEM and aftermarket selections for your 1991 model.

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$6.29

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

Product Features:

SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs

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$4.79

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.

Product Features:

High nickel alloy side electrode maintains precise gap
Full platinum tip assures virtually no gap erosion for long life
Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)

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$4.99

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

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

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$6.79

Works to optimize engine performance for a longer life and improved fuel economy
OE design
Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
Platinum ball welding process provides a consistent point of contact for enhanced adhesion

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$11.99

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.

Product Features:

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs

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$11.79

Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000° Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

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$4.49

NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

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$9.79

ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. 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.

Product Features:

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

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$4.79

Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spa

Product Features:

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.

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$15.79

Recommended for modern vehicles using distributorless ignition systems (DIS) for enhanced plug service life
Enhanced Ignitibility: The NGK Laser Platinum Spark Plug is designed to provide superior ignitibility, ensuring reliable engine starts and smooth performance.
Longer Service Life: Featuring dual-platinum surfaces, these spark plugs offer a slower wear rate, resulting in a significantly longer service life compared to conventional spark plugs.
Improved Fuel Efficiency: The advanced design of the NGK Laser Platinum Spark Plug helps improve fuel efficiency, making it an ideal choice for modern vehicles.
Superior Anti-Fouling: With its platinum center electrode tip, this spark plug provides excellent anti-fouling properties, ensuring consistent performance over time.
Lower Emissions: The NGK Laser Platinum Spark Plug contributes to lower emissions, supporting a cleaner and more environmentally friendly driving experience.

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$2.49

The only parts recommended by Ford Motor Company for Ford, Lincoln, and Mercury vehicles.Long Service Intervals: 100,000 mile service interval, High-Strength Steel High Thread, Platinum-Iridium, Fine-Wire Double Platinum, 60,000-100,000 mile service interval, Up to 60,000 mile service interval: Nickel, Standard Copper Core.

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$10.99

Durability of an OE style plug combined with Power & Torque of high performance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power & Torque of high performance.
Withstands temperatures greater than 4000░ Fahrenheit
Iridium TT
Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.

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$6.99

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.48 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of late model applications, especially import. E3.48 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
Smoother Acceleration & Idle – The faster flame initiated by the The spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

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$3.79

Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
Multi-rib insulator reduces danger of “flash-over”
One-piece terminal post adds strength
Resistor reduces radio frequency interference (RFI) and electrode erosion

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$5.29

The ground electrode is cut-back from the center electrode to provide a gap. The face of the ground electrode is concave to provide a constant gap to the center electrode. This plug is designed use in all aftermarket cylinder heads used in different types of racing venues including oval and road racing.

Product Features:

Opens spark face for better ignitability of flame kernel
Retains less heat, transfers heat to shell faster – reduces risk of pre-ignition
Dyno testing has shown proven power gains
Cut-back ground electrode evolved from practice of grinding back the side electrode

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$4.49

Dependable Performance, OE Replacement, RC9YC. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. The Copper Plus design ensures dependable performance and durability, while the copper core center electrode allows for accurate control of heat range, extending the spark plug’s life. Built to ISO and SAE standards, it offers superior corrosion resistance and proven performance. The nickel center electrode tip and flat seat type further enhance its reliability, making it an excellent choice for maintaining your engine’s efficiency.

Product Features:

Copper Plus – Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance
Enhanced Conductivity and Heat Control: The Champion Copper Plus Spark Plug features a copper core electrode that provides increased conductivity and heat control, ensuring good overall wear and extending the spark plug’s life.
Nickel Center Electrode Tip: Equipped with a nickel center electrode tip and a flat seat type, this spark plug ensures consistent and reliable performance.

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$4.29

Champion® Platinum Power spark plugs deliver powerful performance with their premium design. Featuring a platinum center electrode for long life and a fine-wire center electrode for greater ignitability, these spark plugs ensure optimal performance. The V-trimmed ground electrode promotes sharper spark focus, while the exclusive Heat-Active alloy allows the electrodes to reach optimal temperature. The platinum-tipped center wire resists wear and helps maintain the proper gap specification over the life of the plug, making it a reliable choice for your vehicle.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Platinum Center Electrode: The Champion Platinum Power Spark Plug features a platinum center electrode for extended durability and long-lasting performance.

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$9.99

Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles.
Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
Durable construction – made from quality components to ensure reliable performance and a long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$9.99

Our best spark plug! 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.

Product Features:

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion

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$5.99

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.

Product Features:

Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
Pure copper core provides great heat transfer and helps maximize plug durability
Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
Ribless insulator helps optimize plug to boot seal
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

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$18.49

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance and reliability.
Optimized for OE Applications: Engineered specifically for Original Equipment (OE) applications, meeting the highest standards of quality and durability.
Even Wear: Features a platinum pad on the ground electrode, designed for even wear in distributorless ignition systems.
Fine Wire Tip Design: The fine wire tip design of the IFR6B model ensures efficient combustion and improved engine performance.

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$17.70

Laser welded Platinum center electrode tip
Platinum disc welded to backside of ground electrode provides long life
Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
Faster starts and quicker acceleration
Better fuel economy and lower emissions
Best Platinum spark plug available
Original Equipment Manufacturer approved design

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$13.52

The NGK Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling properties. The Iridium alloy has extremely high melting point, ensuring high durability and a consistently stable spark that is perfect for today’s high-tech, high-performance engines. NGK’s IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast Designed specifically for the performance enthusiast.

Product Features:

Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark
Iridium Alloy has an Extremely High Melting Point, Perfect for Today’s High-Tech, High Performance Engines
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage

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$9.29

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. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles and are designed with high-quality materials to provide reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, ensuring your vehicle runs smoothly.

Product Features:

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.
Engineered for Ford Vehicles: Original equipment on Ford, Lincoln, and Mercury vehicles, ensuring a perfect fit and optimal performance.

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$8.49

Champion® Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

Product Features:

Champion Iridium – Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Heat-Active┐ alloy allows electrodes to reach optimal temperature quickly

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$7.68

Denso Spark Plug Denso’s standard plugs provides a Copper core for better thermal conductivity. Machine rolled threads to reduce cross-threading and seizing . The plug insulator is constructed of purified alumina powder for extreme stress with 5 ribs to prevent flashover.

Product Features:

Machine Rolled Threads Prevent Seizing or Cross Threading During Installation and Removal
100% Pre-Fired to Assure the Highest Quality Possible
Purified Alumina Powder Insulator Provides Exceptional Strength and Thermal Conductivity
Five Rib Insulator Prevents Flashover
Copper-Glass Seal Bonds Center Electrode and Insulator for a Gas-Tight Seal

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$6.90

The NGK G Power platinum tip spark plug provides improved fuel efficiency, lower emissions and quicker reliable starts. The fine platinum tip reduces the voltage requirements and is extremely durable under high heat combustion. Improved Fuel Efficiency, Lower Emissions, Quicker Starts.

Product Features:

Fine Wire Platinum Tipped Center Electrode Reduces Required Voltage for Better Starts, Superior Acceleration and Increased Fuel Economy
Trapezoid Cut Ground Electrode Reduces Quenching
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage

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$6.36

Bosch Silver spark plugs are specifically engineered to improve your performance, whether sport-driving and racing conditions or power sport application. These fine wire plugs are specifically engineered for performance applications. These spark plugs are provided with a silver enhanced center electrode that conducts electricity better than copper or nickel.

Product Features:

The silver ground and center electrodes provide consistent performance over a long service life
Nickel-plated rolled threads for superior anti-seize and corrosion protection
Five-rib insulator prevents misfire due to current leakage
Specifically engineered for high performance applications

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$6.21

OE-Equivalent and direct fit application.
Heavy-duty yttrium-enhanced copper core center electrode.
Tapered, v-profile nickel chromium ground electrode.
Nickel-plated rolled threads.
Metal glass fused resistor.
Angular, five-ribbed insulator design.
Electrode gap is factory set and never requires adjustment.
Anti-seize and corrosion protection. Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines

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$4.93

OE-Equivalent and direct fit application.
Heavy-duty yttrium-enhanced copper core center electrode.
Tapered, v-profile nickel chromium ground electrode.
Nickel-plated rolled threads.
Metal glass fused resistor.
Angular, five-ribbed insulator design.
Electrode gap is factory set and never requires adjustment.
Anti-seize and corrosion protection. Bosch Super Plus Spark Plugs deliver quality performance based on technology that’s proven on racetracks around the world in the most sophisticated racing engines

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$4.89

The NGK V Power spark plug offers a 90 degree V-Power center copper or platinum electrode that provides performance, improved ignitability, increased fuel economy and lower emissions over standard Spark Plugs. The Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties. NGK’s V-Power Plugs Feature a Unique V-Cut in the Center Electrode that Directs the Spark to the Edge of the Electrode, Helping the Spark Develop More Rapidly, Increasing Ignitability and Reducing Quenching.

Product Features:

Lowers ignition system voltage requirements
Greater ignitability and performance over conventional spark plugs
Corrugated Ribs Prevent Flashover
Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Increased fuel economy and lower emissions
Highly durable against electrical and chemical wear
Triple Seals Prevent Leakage Economical performance and improved ignitability over standard NGK Spark Plugs original equipment manufacturer and racer approved.

1991 Audi Coupe Quattro Ignition and Tune-Up Products

NGK – Laser Platinum Spark Plug – Enhanced Ignitibility & Longer Service Life (Part No.4793)

Bosch – Super Plus (Copper Core) Spark Plug (Part No.F100010827BOS)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.3924)

Bosch – Bosch Distributor Rotor (Part No.F202024527BOS)

Carquest – Distributor Rotor (Part No.D637)

Carquest Premium – Distributor Rotor (Part No.DAA1207)

Beru – Beru Ignition Wire End Plug (Part No.F105024770BER)

Bosch – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.0986221000)

Carquest Premium – Distributor Cap (Part No.CAC1434)

Bosch – Bosch Distributor Cap (Part No.F201024489BOS)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

Intermotor Red Wire – Spark Plug Wire Set (Part No.50476)

Carquest Premium – Ignition Switch (Part No.CSA1854)

NGK – Laser Platinum Spark Plug (Part No.F100087180NGK)

Carquest – Distributor Rotor (Part No.D637)

Carquest Premium – Distributor Rotor (Part No.DAA1207)

Carquest Premium – Distributor Cap (Part No.CAC1434)

Bosch – Bosch Distributor Cap (Part No.F201024489BOS)

Bosch – Bosch Distributor Rotor (Part No.F202024527BOS)

Carquest Premium – Ignition Switch (Part No.CSA1854)

NGK – G-Power Spark Plug: Single Platinum Tip Design, BKR6EGP (Part No.7092)

Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP3924)

NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BKR6E (Part No.6962)

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP3924)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, BKR6EIX (Part No.6418)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20 (Part No.5304)

NGK – OE Series Standard Nickel Spark Plug: Conventional Tip Design, BKR6ES (Part No.6364)

ACDelco – Double Platinum Spark Plug (Part No.41-801)

Motorcraft – Spark Plug (AGSP32FP) (Part No.SP-485)

NGK – Laser Platinum Spark Plug – Enhanced Ignitibility & Longer Service Life (Part No.4793)

Motorcraft – Spark Plug (Part No.SP-406)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT (Part No.4702)

E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.48)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.3924)

Autolite – Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions (Part No.AR3924)

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RC9YC (Part No.344)

Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RC9PYC (Part No.3344)

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3924)

ACDelco – RAPIDFIRE Spark Plug (Part No.19)

NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, IFR6B (Part No.6507)

NGK – Laser Platinum Spark Plug (Part No.F100087180NGK)

NGK – Iridium IX Spark Plug (Part No.F100089791NGK)

Motorcraft – High-Durability Spark Plug: Reduces Misfires & Fuel Consumption (Part No.SP-485-X)

Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RC8WYPB3 (Part No.9801)

DENSO – Standard Traditional Spark Plug (Part No.F1000139641ND)

NGK – G-Power Spark Plug (Part No.F1000400171NGK)

Bosch – Silver Spark Plug (Part No.F100010826BOS)

Bosch – Super Plus (Copper Core) Spark Plug (Part No.F100010827BOS)

Bosch – Super Plus (Copper Core) Spark Plug (Part No.F1000291907BOS)

NGK – V Power Spark Plug (Part No.F100037020NGK)

Bosch – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.0986221000)

Intermotor Red Wire – Spark Plug Wire Set (Part No.50476)

Beru – Beru Ignition Wire End Plug (Part No.F105024770BER)