1991 Cadillac Eldorado Fuel and Emissions Systems
Find Your Specific 1991 Cadillac Eldorado Fuel and Emissions Systems
Below you will find various in-demand Cadillac Fuel and Emissions Systems, components and accessories for your 1991 Eldorado. Advance Auto Parts has popular Eldorado parts like Fuel Injectors, Fuel Pumps, Oxygen Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other Eldorado model years including
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001,
2002 and more. Select a category of 1991 Cadillac Eldorado Fuel and Emissions Systems below and start saving instantly.
Popular 1991 Cadillac Eldorado Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 1991 Cadillac Eldorados
Carquest Premium – Carquest Electric Fuel Pump, E219680 (Part No.E219680)
from
$84.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
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Carquest Premium – Carquest Multi-Use Connector, PTA1517 (Part No.PTA1517)
from
$53.99
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 Keyed Alike Locking Fuel Cap, 17507 (Part No.17507)
from
$11.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Remanufactured T/B Fuel Injector, A114-1193 (Part No.A114-1193)
from
$59.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.
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Wells Vehicle Electronics – Wells Vehicle Electronics Fuel Injection Pressure Regulator, 5G1045 (Part No.5G1045)
from
$70.99
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to OE designs. Every component either matches or improves on the OE design to ensure fast, easy installation, superior performance and reliability.
See More
Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12410 (Part No.12410)
from
$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
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Carquest Premium – Carquest Fuel Pump Wiring Harness WH2541161 (Part No.WH2541161)
from
$56.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Carquest Premium – Carquest Fuel Tank Lock Ring, LO1582931 (Part No.LO1582931)
from
$16.99
Carquest Premium fuel pump tank seals are built by Carter Fuel Systems and Agility Auto Parts, industry leaders in high-quality fuel system components. Carquest Premium offers a complete line of fuel pump tank seals covering a wide variety of North American vehicle applications. Carquest Premium fuel pump tank seals are engineered to meet or exceed all OEM specifications.
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Carquest – Carquest Steel Fuel Tank, 576-360 (Part No.576-360)
from
$385.99
This replacement fuel tank is precision-engineered to match the fit and function of the original fuel tank on specified vehicles.
See More
Delphi – Delphi Fuel Tank Cleaning Kit, FC01 (Part No.FC01)
from
$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
See More
Victor Reinz – Victor Reinz EGR Valve Gasket, 71-13691-00 (Part No.71-13691-00)
from
$4.79
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
See More
Carquest Premium – Carquest Fuel Pump Pulsator, A3541776 (Part No.A3541776)
from
$25.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Carquest Premium – Carquest Multi-Use Connector, PTA1437 (Part No.PTA1437)
from
$19.99
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 Fuel Tank Sending Unit Lock Ring, TR11 (Part No.TR11)
from
$9.99
GM Genuine Parts Fuel Tank Lock Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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 Multi-Use Connector, PTA1246 (Part No.PTA1246)
from
$33.99
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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Dorman – Dorman 4-Wire Idle Air Control Valve, 85112 (Part No.85112)
from
$39.99
Make better electrical repairs and accessory installations with a Dorman pigtail connector. This idle air control valve connector is designed to match performance of the original equipment connector on specified vehicles. Engineered for a clean appearance when installed, Dorman connectors are ideal for neatly securing wiring jobs in automotive, commercial, industrial and household applications. Our pigtails are constructed from quality materials for long service life and resistance to the elements, and offer a range of features including locking tabs, weatherproof seals and more, where applicable. Check the product details to choose the best product for your electrical wiring needs.
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ACDelco – ACDelco Manifold Absolute Pressure (MAP) Sensor, 213-796 (Part No.213-796)
from
$89.99
ACDelco GM Original Equipment Manifold Absolute Pressure (MAP) Sensors measure intake manifold pressure, and are GM-recommended replacements for your vehicle’s original components. The MAP sensor is a part of the fuel and engine management system. Its signal is used by the engine control module along with the throttle position sensor to calculate the amount of air entering the engine so that the correct amount of fuel is injected for optimum combustion. These original equipment manifold absolute pressure sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
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Felpro – Felpro Fuel Injector O-Ring Kit, ES 72099 (Part No.ES 72099)
from
$9.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Dorman – Dorman Panel Trim Retainer – Interior – GM (Sold by each), 700-330 (Part No.700-330)
from
$1.29
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring Length service life.
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Carquest Premium – Carquest EGR Valve, EGC1514 (Part No.EGC1514)
from
$79.99
Carquest Premium exhaust gas recirculation (EGR) valves are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Our Carquest Premium EGR valves are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium EGR valves undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium EGR valves 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 New Mass Air Flow Sensor – Complete Assembly, MQ7202 (Part No.MQ7202)
from
$94.99
Carquest Premium mass air flow (MAF) sensors are built to meet the original equipment (OE) specifications for each application. Our MAF sensors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium mass air flow sensors are 100% new and undergo extensive validation testing to ensure long-lasting performance and reliability.
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Dorman – "Dorman Quick Connector 5/16 Inch, 90 Degree with 18"" of 5/16"" Nylon Tube and a Union, 800-060" (Part No.800-060)
from
$31.99
Replace only the damaged connectors instead of the entire fuel line with these direct-replacement fuel line connectors. Designed for easy installation and a precise fit, they are engineered to withstand extreme underhood conditions.
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Carquest Premium – Carquest Exhaust Gas Recirculation (EGR) Valve Control Solenoid, CPA1249 (Part No.CPA1249)
from
$81.99
The EGR system is an emission control device designed to recirculate exhaust gas into the engines air intake system and back to the combustion chamber to control nitrogen oxides or NOx. The chemical NOx is created when oxygen and nitrogen are heated above 2,800-degree F. Exhaust gas, or gas that is displaced from the combustion chamber, contains little to no oxygen molecules. By recirculating this gas back into the combustion chamber fewer oxygen molecules are available for the combustion event which will therefore create a cooler combustion event. The EGR valve can be actuated by engine vacuum or electronically by the engine control module.
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NTK – "NTK Switching Oxygen Sensor: 4 Wire, 10"" Long, Heated, Direct Fit, 21506" (Part No.21506)
from
$82.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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GM Genuine Parts – GM Genuine Parts Fuel Feed Pipe O-Ring, 217-452 (Part No.217-452)
from
$3.49
GM Genuine Parts Multi Purpose Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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 Multi-Use Connector, ABA3464 (Part No.ABA3464)
from
$47.99
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
Carquest – Carquest Fuel Injector Seal Kit, 274838 (Part No.274838)
from
$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
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Carquest Premium – Carquest Multi-Use Connector, PTA1093 (Part No.PTA1093)
from
$25.99
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
Upgrade your 1991 Cadillac Eldorado with Top-Quality Fuel and Emissions Systems
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, Fuel and Emissions Systems are key to keeping your Eldorado functioning at its best. At Advance Auto Parts, we offer a wide selection of 54 Fuel and Emissions Systems for the 1991 Cadillac Eldorado, designed to meet your needs without breaking the bank.
From
Fuel Injector
replacements to
Fuel Pumps
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 Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 1991 Cadillac Eldorado at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $1.29 to $385.99, with
an average price of $46.02.
Our 54 Fuel and Emissions Systems in stock come from 13 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 Fuel and Emissions Systems from top names
like Carquest Premium, Spectra Premium, Dorman, and more.
Carquest Premium Fuel and Emissions Systems
start at just $9.99 and boast an impressive 4.5 stars average rating from customers.
Spectra Premium and Dorman also bring quality to the table, with Fuel and Emissions Systems available starting at $5.29, and at an average 4.4 stars rating.
With 654 customer reviews and counting, our 1991 Cadillac Eldorado Fuel and Emissions Systems 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 Fuel and Emissions System 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 Fuel Injectors for 1991 Cadillac Eldorados
Enhance the driving experience in your Cadillac with 9 quality Fuel Injector components, starting at $8.49.
Felpro – Felpro Fuel Injector O-Ring Kit, ES 70599 (Part No.ES 70599)
from
$8.49
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
See More
Carquest Premium – Carquest Multi-Use Connector, ABA3464 (Part No.ABA3464)
from
$47.99
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 Fuel Injector O-Ring Kit with 8 Bushings and 16 O-Rings, 217-3102 (Part No.217-3102)
from
$31.49
GM Genuine Parts Fuel Injector Seal Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help provide liquid-tight connections between the fuel injector and related components. 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 – Carquest Fuel Injector Seal Kit, 274838 (Part No.274838)
from
$8.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
See More
Carquest Premium – Carquest Fuel Pump Pulsator, A3541776 (Part No.A3541776)
from
$25.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Wells Vehicle Electronics – Wells Vehicle Electronics Fuel Injection Pressure Regulator, 5G1038 (Part No.5G1038)
from
$69.99
WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to OE designs. Every component either matches or improves on the OE design to ensure fast, easy installation, superior performance and reliability.
See More
Carquest Premium – Carquest New Map Sensor, ECE1192 (Part No.ECE1192)
from
$64.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
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Carquest Premium – Carquest Remanufactured Multi Port Fuel Injector, A211-1233 (Part No.A211-1233)
from
$62.99
The CARQUEST line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.
See More
Victor Reinz – Victor Reinz Fuel Injector O-Ring Kit, 18-10027-01 (Part No.18-10027-01)
from
$11.49
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
See More
Most Popular 1991 Cadillac Eldorado Fuel Pumps
Customize your Cadillac with 8 Fuel Pumps products
like Fuel Pumps,
Electric Pump Filter and Strainers, and
Fuel Filler Neck Clip, all
priced under $129.99.
Dorman – Dorman Panel Retainer, 963-021D (Part No.963-021D)
from
$5.29
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.
See More
Delphi – Delphi Fuel Pump Strainer, FS0177 (Part No.FS0177)
from
$13.99
Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
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Delphi – Delphi Electric Fuel Pump: Hose Clamps, Hose Piece, Insulating Sleeve, Isolator, Seals, FE0113 (Part No.FE0113)
from
$129.99
Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
See More
Carquest Premium – Carquest Fuel Pump, E260317 (Part No.E260317)
from
$58.99
Carquest Premium electric fuel pumps are engineered by Carter Fuel Systems or Agility Auto Parts to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our Carquest Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. Carquest Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Carquest Premium – Carquest Fuel Pump Strainer FS260336 (Part No.FS260336)
from
$11.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Carquest Premium – Carquest Fuel Pump Wiring Harness WH2541161 (Part No.WH2541161)
from
$56.99
CARQUEST Premium electric fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Our CARQUEST Premium fuel pumps are built to be installed in the Original Equipment module or assembly. We have invested in industry-leading quality upgrades, like upgraded turbine impellers and 100% carbon commutators, to deliver greater reliability. CARQUEST Premium electric fuel pumps are engineered with superior quality components to provide the longest life and reliable performance.
See More
Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12410 (Part No.12410)
from
$17.79
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
See More
Dorman – Dorman Panel Trim Retainer – Interior – GM (Sold by each), 700-330 (Part No.700-330)
from
$1.29
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring Length service life.
See More
Top Picks for 1991 Cadillac Eldorado Oxygen Sensors
Upgrade Cadillac Eldorados with top-quality Oxygen Sensors parts, including 5 OEM and aftermarket selections for your 1991 model.
DENSO – "DENSO Oxygen Sensor: 2 Wire, 11.77"" Long, Not Heated, Universal Fit, 234-2000" (Part No.234-2000)
from
$50.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
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Bosch – "Bosch Oxygen Sensor: 2 Wire, 12.48"" Long, Non-heated, Exact Fit, 12028" (Part No.12028)
from
$33.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
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NTK – "NTK Switching Oxygen Sensor: 2 Wire, 13.75"" Long, Non-Heated, Direct Fit, 21553" (Part No.21553)
from
$59.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. NTK is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
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Carquest Premium – Carquest Multi-Use Connector, PTA3163 (Part No.PTA3163)
from
$43.99
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
DENSO – "DENSO Oxygen Sensor: Upstream, 2 Wire, 14.80"" Long, Not Heated, Exact Fit, 234-2001" (Part No.234-2001)
from
$43.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
See More
In-Demand Fuel Tanks for 1991 Cadillac Eldorados
Select from 7 premium Fuel Tanks parts for your 1991 Cadillac Eldorado, with prices ranging from $9.99 to $385.99.
Spectra Premium – Spectra Premium Fuel Tank, GM36 (Part No.GM36)
from
$336.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tanks meet or exceed the performance of the original equipment they replace.
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Delphi – Delphi Fuel Tank Cleaning Kit, FC01 (Part No.FC01)
from
$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
See More
Carquest Premium – Carquest Fuel Tank Lock Ring, LO1582931 (Part No.LO1582931)
from
$16.99
Carquest Premium fuel pump tank seals are built by Carter Fuel Systems and Agility Auto Parts, industry leaders in high-quality fuel system components. Carquest Premium offers a complete line of fuel pump tank seals covering a wide variety of North American vehicle applications. Carquest Premium fuel pump tank seals are engineered to meet or exceed all OEM specifications.
See More
Carquest Premium – Carquest Fuel Tank Lock Ring, LO1511470 (Part No.LO1511470)
from
$10.99
Carquest Premium fuel tank lock rings are built by Carter Fuel Systems and Agility Auto Parts, industry leaders in high-quality fuel system components. Carquest Premium offers a complete line of fuel tank lock rings covering a wide variety of North American vehicle applications. Carquest Premium fuel tank lock rings are engineered to meet or exceed all OEM specifications. Carquest Premium fuel tank lock rings are precision stamped and are treated with a rust proof finish to ensure durability and strength.
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Carquest – Carquest Steel Fuel Tank, 576-360 (Part No.576-360)
from
$385.99
This replacement fuel tank is precision-engineered to match the fit and function of the original fuel tank on specified vehicles.
See More
Dorman – Dorman Fuel Tank Filler Neck, 577-236 (Part No.577-236)
from
$228.99
Fuel filler neck leaking- This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.
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Carquest Premium – Carquest Fuel Tank Lock Ring, LR3000 (Part No.LR3000)
from
$9.99
CARQUEST lock rings are designed to positively seat the fuel pump in proper position inside the tank. These precision stamped rings are made from corrosion-resistant and durable metals for long life.
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Most Sold 1991 Cadillac Eldorado Gas Caps
Explore our best-selling Cadillac parts for the 1991 Eldorado among 13 OEM and aftermarket options starting from $9.99.
Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17591 (Part No.17591)
from
$11.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack, 10837 (Part No.10837)
from
$14.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10834 (Part No.10834)
from
$9.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Gas Cap: Twist On, Reduces Air Pollution, 1 Pack, 10817 (Part No.10817)
from
$15.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10501 (Part No.10501)
from
$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Non-Locking Fuel Tank Cap, 10819 (Part No.10819)
from
$16.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10591 (Part No.10591)
from
$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Cap: Screw On, Direct Fit, Provides Tight Seal, 1 Pack, 10504 (Part No.10504)
from
$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Fuel Tank Cap, 10507 (Part No.10507)
from
$23.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Locking Diesel Fuel Tank Cap, 10501D (Part No.10501D)
from
$31.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Motorad – Motorad Direct Fit Tethered Non-Locking Gas Fuel Tank Cap:, MGC817T (Part No.MGC817T)
from
$24.29
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17507 (Part No.17507)
from
$11.79
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Carquest Premium – Carquest Keyed Alike Locking Fuel Cap, 17505 (Part No.17505)
from
$10.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
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Top-Rated Fuel and Emissions Systems Brands For Your 1991 Cadillac Eldorado
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 1991 Cadillac Eldorados. Below you’ll find some of our best rated Fuel and Emissions Systems from Carquest Premium, Spectra Premium, and Dorman, and more. Fuel and Emissions Systems from these brands that fit a 1991 Eldorado start at just $5.29 and are rated as high as 4.5 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.
Popular Carquest Premium 1991 Cadillac Eldorado Fuel and Emissions Systems
When it comes to maintaining or upgrading your 1991 Cadillac Eldorado, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Fuel and Emissions Systems, specifically designed for the 1991 Cadillac Eldorado. With over 3 Carquest Premium brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $9.99, with an average price of just $12.32. Plus, with over 182 customer reviews and an average rating of 4.5 stars, you can trust that our Carquest Premium Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$14.99
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Carquest Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack, 10837
“Motorhome”
Popular Spectra Premium 1991 Cadillac Eldorado Fuel and Emissions Systems
Spectra Premium auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 1991 Cadillac Eldorado owner should feel confident when installing genuine Spectra Premium parts in their vehicle. To ensure the best fit and performance for your 1991 Eldorado, Advance Auto Parts carries a full inventory of 1 Spectra Premium Fuel and Emissions Systems. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Spectra Premium Fuel and Emissions Systems range up to $336.99, plus, with more than 1 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.
FAQs for 1991 Cadillac Eldorado Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 1991 Cadillac Eldorados?
Out of 54 Fuel and Emissions Systems that fit 1991 Cadillac Eldorados, the following parts are the top sellers:
- Carquest Fuel Cap: Round, Direct Fit, Provides Tight Seal, 1 Pack, 10837 (18481528) – $14.99
- Felpro Fuel Injector O-Ring Kit, ES 70599 (3504360) – $8.49
- Motorad Direct Fit Tethered Non-Locking Gas Fuel Tank Cap:, MGC817T (12102600) – $24.29
What’s the price range for 1991 Cadillac Eldorado Fuel and Emissions Systems?
Fuel and Emissions System prices for the 1991 Cadillac Eldorado start at $1.29 and go up to $385.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 1991 Cadillac Eldorado?
The average price for Fuel and Emissions Systems for the 1991 Cadillac Eldorado is $46.02. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Fuel and Emissions Systems for other Cadillac Eldorado model years?
What are the cheapest Fuel and Emissions Systems for my 1991 Cadillac Eldorado?
The cheapest 1991 Cadillac Eldorado Fuel and Emissions Systems we carry in stock are:
- Dorman Panel Trim Retainer – Interior – GM (Sold by each), 700-330 (22141952) – $1.29
- Carquest Exhaust Gas Recirculation (EGR) Valve Gasket, EVA1013 (12481993) – $1.49
- Felpro Exhaust Gas Recirculation (EGR) Valve Gasket, 70954 (3207900) – $3.49
- GM Genuine Parts Fuel Feed Pipe O-Ring, 217-452 (15730384) – $3.49
- Victor Reinz EGR Valve Gasket, 71-13691-00 (50303629) – $4.79
What are the top-rated Fuel and Emissions Systems that fit the 1991 Cadillac Eldorado?
Out of 654 reviews by customers, our 1991 Cadillac Eldorado Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 1991 Cadillac Eldorado and their top-rated products:
- Oxygen Sensors
- "DENSO Oxygen Sensor: 2 Wire, 11.77"" Long, Not Heated, Universal Fit, 234-2000" (20471220) – $50.99
- "Bosch Oxygen Sensor: 2 Wire, 12.48"" Long, Non-heated, Exact Fit, 12028" (3486117) – $33.99
What types of Fuel and Emissions Systems do you sell for my 1991 Cadillac Eldorado?
As of 8/2/26, these are some of the most in-demand types of Fuel and Emissions Systems for a 1991 Cadillac Eldorado:
Can I get help with 1991 Cadillac Eldorado Fuel and Emissions System orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Fuel and Emissions Systems and more.
What is your return policy for Cadillac Eldorado Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
