1986 Cadillac Seville Fuel and Emissions Systems

Below you will find various in-demand Cadillac Fuel and Emissions Systems, components and accessories for your 1986 Seville. Advance Auto Parts has popular Seville parts like Gas Caps, Fuel Injectors, Oxygen Sensors and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other Seville model years including 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 and more. Select a category of 1986 Cadillac Seville Fuel and Emissions Systems below and start saving instantly.

Popular 1986 Cadillac Seville Fuel and Emissions Systems Categories

Air- Fuel Ratio Sensors

Fuel Tank Cleaning Kits

Gas Caps

Fuel Pumps

Oxygen Sensors

MAP-Barometric Pressures

Manifold Air Pressure Sensors

Air Charge Temperature Sensors

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Electric Pump Filter and Strainers

Fuel Injector Seal Kits

Fuel Tank Lock Rings

Fuel Injector Connectors

Mass Air Flow Sensor Connectors

Fuel Cap Tester Adapters

Vacuum Reservoir Nut

Idle Speed Control Motor Connectors

Essential Fuel and Emissions Systems for 1986 Cadillac Sevilles

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$28.99

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.

Product Features:

Direct replacement – these fuel line connectors fit and function like the vehicle’s original equipment connectors for reliable, leak-free performance.
Quality construction – manufactured from premium materials for a long service life.
Saves money – replace only the part, not the entire assembly
Excellent value – original equipment quality at a lower price

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$10.99

GM Genuine Parts Fuel Pump Strainers are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These strainers help keep debris from entering your vehicle’s fuel pump. 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).

Product Features:

Helps keep debris from entering fuel pump
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

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$22.99

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.

Product Features:

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$17.29

Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock. Made of durable materials for reliable service.

Product Features:

Direct replacement – this fuel tank sending unit lock ring is made to match the fit and performance of the original ring on specific vehicle applications.
Recommended for replacement whenever the sending unit is serviced, this fuel tank sending unit lock ring securely retains the fuel pump assembly to the lock
Durable construction – this part is made from quality materials to ensure reliable performance and 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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$32.99

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.

Product Features:

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$4.49

Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:

Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
Quality material – this retainer is made of durable material for long-lasting service
Versatile design – this retainer is suitable for a variety of automotive uses
Excellent value – this part offers original equipment quality at a competitive cost

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$19.99

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.

Product Features:

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$7.99

This HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles.
Restores functionality – reliable replacement for an original hose that has failed due to heat or vibration
Durable construction – this part is made from quality materials to ensure reliable performance and 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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$48.49

CARQUEST’S line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% 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. Each injector includes new external seals and O-rings.

Product Features:

Each unit is 100% tested to OE specifications
Includes new O-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

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$48.30

The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.

Product Features:

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$39.99

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$25.99

CARQUEST premium engine management products provide the right automatic transmission speed sensor for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions. Designed to meet OE quali

Product Features:

Lifecycle tested to meet or exceed OE specifications
Direct OE replacement
High strength thermoplastic is resistant to shock, temperature and chemicals. Also protects internal components from moisture and contaminants.
Global coverage for import and/or domestic applications.

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$9.29

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$344.99

This replacement fuel tank is precision-engineered to match the fit and function of the original fuel tank on specified vehicles.

Product Features:

Reliable replacement – this fuel tank directly replaces the original fuel tank on specified vehicle years, makes and models
Durable construction – this fuel tank is made from the same rugged materials as the original part for dependable service
Quality assured – this part has been validated to ensure a quality fit and long service life
Trustworthy design – backed by team of product specialists in the United States

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$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.

Product Features:

Helps avoid premature fuel pump failure
Lint free towel included
Low suds formulation
Removes harmful contaminants from the fuel tank

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$47.99

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.

Product Features:

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested

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$40.69

The ACDelco GM Original Equipment Fuel Pump Tank Seal is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:

GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$10.99

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$1.49

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$56.99

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$3.29

The ACDelco Professional Fuel Injector Seal Kit contains high quality aftermarket replacement components for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket kit contains components that are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$61.99

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$57.99

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested

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$59.99

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.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$16.79

ACDelco Professional Air Charge Temperature Sensor Connector is a high quality aftermarket replacement component for one or more of the following vehicle systems: ignition, starting and charging, body-electrical and lighting, and/or engine fuel management. This premium aftermarket connector is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$85.99

Delphi MAP sensors use the latest OE technology; Internally protected against moisture intrusion and vibration; Manufactured to meet or exceed OE requirements for 100,000 miles.

Product Features:

Insulated with silicone gel over the integrated circuit chip to protect against shock and vibration for increased durability
Internally protected against moisture intrusion and vibration
Long lasting and durable
Designed and engineered with Delphi expertise

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$65.99

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.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

Upgrade your 1986 Cadillac Seville with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1986 Cadillac Seville, 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 Seville functioning at its best. At Advance Auto Parts, we offer a wide selection of 65 Fuel and Emissions Systems for the 1986 Cadillac Seville, designed to meet your needs without breaking the bank. From Gas Cap replacements to Fuel Injectors 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 1986 Cadillac Seville at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $1.49 to $336.99, with an average price of $37.86. Our 65 Fuel and Emissions Systems in stock come from 15 trusted brands, so you’re sure to find the right part for your 1986 Cadillac Seville 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 1986 Cadillac Seville, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Carquest Premium Delphi, and more. Carquest Premium Fuel and Emissions Systems start at just $1.49 and boast an impressive 4 stars average rating from customers. With 561 customer reviews and counting, our 1986 Cadillac Seville 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 1986 Cadillac Seville is always ready to roll. We’re committed to providing you with everything you need to keep your Seville in top shape, all in one place. Start shopping confidently below for your 1986 Cadillac Seville!

Best-Selling Gas Caps for 1986 Cadillac Sevilles

Enhance the driving experience in your Cadillac with 14 quality Gas Cap components, starting at $6.99.

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$11.99

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Product Features:

Protects your fuel from theft and vandalism
Manufactured from durable, long-life materials
Independently tested for emission control
Passes all state and federal emissions tests
Reduces air pollution with proper sealing and venting

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$14.99

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$15.49

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$15.79

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$24.99

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$16.79

Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control
“Torque Override” feature aids in the proper installation of the fuel cap. It produces an audible click as the O-ring that seals the cap is properly compressed.

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$23.99

None

Product Features:

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$21.79

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$22.99

Protects your fuel from theft and vandalism
Passes all state and federal emissions tests
Manufactured from durable, long-life materials
Reduces air pollution with proper sealing and venting
Independently tested for emission control

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$6.99

None

Product Features:

Protects your fuel from theft and vandalism
Manufactured from durable, long-life materials
Independently tested for emission control
Passes all state and federal emissions tests
Reduces air pollution with proper sealing and venting

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$23.99

Experience uncompromising quality and emissions compliance with these tethered fuel caps. Manufactured with top-tier materials and rigorous production and safety standards adhering to Original Equipment Manufacturer guidelines. Designed meticulously to meet both state and federal emissions requirements, it ensures environmental responsibility. With its specifically engineered pressure and vacuum relief valves, fuel evaporation becomes a thing of the past. Bid farewell to the risk of losing up to 30 gallons of precious gasoline over a year due to a leaking fuel cap. Trust in our superior construction to safeguard your fuel and contribute to a greener future.

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$10.99

None

Product Features:

Protects your fuel from theft and vandalism
Manufactured from durable, long-life materials
Independently tested for emission control
Passes all state and federal emissions tests
Reduces air pollution with proper sealing and venting

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$40.46

ACDelco Professional, premium aftermarket Molded Coolant Hoses are composed of specially blended materials to help resist electrochemical degradation (ECD), the leading cause of hose failure. They are specially designed, GM OE style factory-molded hoses to fit today’s smaller, tighter-fitting engine compartments. ACDelco Professional Molded Coolant Hoses are temperature rated from -40 degrees Fahrenheit to 275 degrees Fahrenheit (-40 degrees Celsius to 135 degrees Celsius) and are approved for Marine applications. Do not use for fuel or oil transfer applications. These premium aftermarket replacement molded coolant hoses are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Has a heat and ozone resistant cover to increase the life of the hose
Comes with a protective sleeve to help duplicate GM OE designs for proper fit and function
Made of re-engineered materials to resist vacuum collapse and also reduce the need for internal springs in many applications
Installs without buckling, bending out of shape, or straining at the connection for easy installation
Inside diameters ranges from 1?4 in to 1 in to fit different types of vehicles

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$20.21

Fuel Tank Cap

Most Popular 1986 Cadillac Seville Fuel Injectors

Customize your Cadillac with 8 Fuel Injectors products like Fuel Injectors, Fuel Injector O-Ring Kits, and Fuel Injector Seal Kits, all priced under $46.99.

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$7.99

This HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this HVAC control duct hose is designed to match the fit and function of the original hose on specified vehicles.
Restores functionality – reliable replacement for an original hose that has failed due to heat or vibration
Durable construction – this part is made from quality materials to ensure reliable performance and 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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$4.49

Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:

Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
Quality material – this retainer is made of durable material for long-lasting service
Versatile design – this retainer is suitable for a variety of automotive uses
Excellent value – this part offers original equipment quality at a competitive cost

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$3.79

CARQUEST fuel injector seal kits include the necessary O-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.

Product Features:

Premium OE quality materials
Services one injector

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$27.99

BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:

100% pure copper windings in primary and secondary bobbins improve durability and provide higher resistance to internal shorts and dielectric breakdown
Electronic ignition module profile and feedback signal ensures proper OE fit, form, and function
Thermoplastic housing withstands heat stress for enhanced durability
Internal core made from grain-oriented electrical steel limits loss factor within magnetic circuit to reduce heat that may reduce coil endurance
External core made from oriented silicon steel ensures durability and longevity

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$36.49

Pigtail connector allows replacement of damaged fuel injector connector.

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$30.49

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$46.99

Fuel Injector Repair Kit

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$45.99

Each unit is 100% tested to OE specifications
Includes new O-rings and seals made of premium OE quality materials
Includes application specific technical bulletin, where applicable

Top Picks for 1986 Cadillac Seville Oxygen Sensors

Upgrade Cadillac Sevilles with top-quality Oxygen Sensors parts, including 3 OEM and aftermarket selections for your 1986 model.

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$31.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

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$32.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$29.99

NTK 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, NTK 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.

Product Features:

OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability

In-Demand Fuel Pumps for 1986 Cadillac Sevilles

Select from 8 premium Fuel Pumps parts for your 1986 Cadillac Seville, with prices ranging from $4.49 to $67.99.

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$67.99

100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.

Product Features:

Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
Delphi pumps are designed to operate under extreme temperatures with quick engine starts and to avoid low-fuel hesitation, including alcohol fuels and blends
Improved pump performance as a result of Delphi’s innovative design and durability
Restores fast pressure performance and system integrity, translating to better pumping through less energy
Part is validated, tested and matched to the right vehicle application
Lower amperage draws less load on vehicle’s electrical system
Always be sure to check and clean fuel tank to avoid unnecessary returns
Always replace the fuel strainer when doing a fuel pump repair

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$13.99

Filtration performance and micron rating meet or exceed OE requirements
OE replacement strainer designed for use with Delphi electric fuel pumps
Replacing the strainer is always recommended when replacing a fuel pump

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$65.99

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 & reliable performance.

Product Features:

Meets or exceeds OE specifications for fit, form & function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested

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$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.

Product Features:

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested

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$47.99

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

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$15.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

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$4.49

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium strainers meet or exceed the performance of the original equipment they replace.

Product Features:

Designed with gradient density to meet or exceed OE specifications
Engineered and developed in Canada
Designed to ensure optimal filtration to prevent fuel system contamination
Strainer material tested and validated for capacity and efficiency by accredited, third party
Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
Engineered and developed by Spectra Premium; proud member of the A.A.S.A. fuel pump manufacturers working group

Most Sold 1986 Cadillac Seville Air Flow Sensors

Explore our best-selling Cadillac parts for the 1986 Seville among 14 OEM and aftermarket options starting from $16.79.

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$39.79

NTK is the world’s largest supplier and manufacturer of original equipment oxygen sensors. NTK oxygen sensors meet or exceed original equipment specifications and are equipped with waterproof factory fitted connectors to ensure a perfect fit every time. Every NTK oxygen sensor is individually tested to ensure the highest level of quality and reliability.

Product Features:

OE-Equivalent.
Direct fit for easy installation.
Extensively Tested During Manufacture to Guarantee Quality and Reliability
Supplied With a Factory-Fitted OEM Connector for Easy Installation

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$25.99

Building upon a foundation of premium full-line products established under NGK ignition and NTK oxygen sensor products, NTK¿s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand: NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK¿s family of automotive products are driven by extreme dedication to innovation, performance and quality. NTK is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, NTK sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. NTK sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:

Air Charge Temperature Sensors are designed to meet or exceed OE specifications in form, fit and function to ensure proper monitoring of air temperature entering the engine
NTK’s Engine Coolant Temperature Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function to ensure proper engine operating temperature.

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$16.79

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$34.99

Delphi temperature sensors are built with the latest OE technology; Delphi temperature sensors use durable, one-piece design; Delphi temperature sensors are impervious to electrical noise and interference.

Product Features:

Delphi temperature sensors are built with the latest OE technology
Delphi temperature sensors are impervious to electrical noise and interference
Part is validated, tested and matched to the right vehicle application
Delphi temperature sensors feature a one-piece lead-frame design from sensing element tip to connector terminals to help eliminate internal connectors and failure points

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$22.13

The FAE Engine Coolant Temperature Sensor is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

Premium aftermarket replacement
Provides performance and dependability
Manufactured to meet OE specifications

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$104.99

ACDelco GM Original Equipment Multi Purpose Pressure Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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.

Product Features:

Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies

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$58.18

Water Temp. Sensor

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$35.87

OE-Equivalent.
Direct fit for easy installation.
OE Style connectors and wire lengths.
Base ceramic probe of Zirconium and Yttrium.
Patented Platinum Power Grid.

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$61.99

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.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$59.99

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.

Product Features:

CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.

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$85.99

Insulated with silicone gel over the integrated circuit chip to protect against shock and vibration for increased durability
Internally protected against moisture intrusion and vibration
Long lasting and durable
Designed and engineered with Delphi expertise

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$56.25

The ACDelco GM Original Equipment Engine Coolant Temperature Sensor monitors the engine temperature, and is a GM-recommended replacement for your vehicle’s original component. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. This original equipment engine coolant temperature sensor has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

Undergo the same stringent testing process as the original part
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function

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$38.11

Air Temp. Sensor

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$34.99

An ACDelco Professional, premium aftermarket Engine Coolant Temperature Sensor is a high quality replacement for many vehicles on the road today. It monitors the engine temperature. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. This premium aftermarket replacement engine coolant temperature sensor is manufactured to meet your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

Top-Rated Fuel and Emissions Systems Brands For Your 1986 Cadillac Seville

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 1986 Cadillac Sevilles. Below you’ll find some of our best rated Fuel and Emissions Systems from Carquest Premium and Delphi, and more. Fuel and Emissions Systems from these brands that fit a 1986 Seville start at just $1.49 and are rated as high as 4 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 1986 Cadillac Seville Fuel and Emissions Systems

When it comes to maintaining or upgrading your 1986 Cadillac Seville, 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 1986 Cadillac Seville. With over 28 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 $1.49, with an average price of just $27.39. Plus, with over 401 customer reviews and an average rating of 4 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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$10.99

This product is not rated

Keyed Alike Locking Fuel Cap

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$16.99

This product is not rated

Fuel Tank Lock Ring

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$3.79

This product is not rated

Fuel Injector Seal Kit

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Popular Delphi 1986 Cadillac Seville Fuel and Emissions Systems

Delphi auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 1986 Cadillac Seville owner should feel confident when installing genuine Delphi parts in their vehicle. To ensure the best fit and performance for your 1986 Seville, Advance Auto Parts carries a full inventory of 5 Delphi Fuel and Emissions Systems. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Delphi Fuel and Emissions Systems range from $12.49 to $85.99, plus, with more than 61 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

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$12.49

This product is not rated

Fuel Tank Cleaning Kit

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$34.99

This product is not rated

Air Charge Temperature Sensor

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$85.99

This product is not rated

Manifold Absolute Pressure Sensor

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FAQs for 1986 Cadillac Seville Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 1986 Cadillac Sevilles?

Out of 65 Fuel and Emissions Systems that fit 1986 Cadillac Sevilles, the following parts are the top sellers:

Fuel Cap: 10837, Round, Direct Fit, Provides Tight Seal, 1 Pack (18481528) – $14.99
Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack (12102600) – $23.99
Electric Fuel Pump: With Hose Clamps, Isolator, Splices, Isolator, 2-Wire Harness w/Connector (20772154) – $67.99

What’s the price range for 1986 Cadillac Seville Fuel and Emissions Systems?

Fuel and Emissions System prices for the 1986 Cadillac Seville start at $1.49 and go up to $336.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 1986 Cadillac Seville?

The average price for Fuel and Emissions Systems for the 1986 Cadillac Seville is $37.86. 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 Seville model years?

Yes, we currently carry Fuel and Emissions Systems for 28 model years of Cadillac Sevilles between 1976 and 2004. Fuel and Emissions Systems are bought most frequently for the following model years: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, and 1996.

What are the cheapest Fuel and Emissions Systems for my 1986 Cadillac Seville?

The cheapest 1986 Cadillac Seville Fuel and Emissions Systems we carry in stock are:

Exhaust Gas Recirculation (EGR) Valve Gasket (12481993) – $1.49
Fuel Injector Seal Kit (11449789) – $3.79
Nylon Nut – 1/4 In. (No.14) (11911189) – $4.49
Fuel Pump Strainer (11512515) – $4.49
EGR Valve Gasket (12581235) – $5.22

What are the top-rated Fuel and Emissions Systems that fit the 1986 Cadillac Seville?

Out of 561 reviews by customers, our 1986 Cadillac Seville Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 1986 Cadillac Seville and their top-rated products:

Oxygen Sensors
- Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit (3486109) – $31.99
- Oxygen Sensor: 1 Wire, 5.31" Long, Non-heated, Universal Fit (3486079) – $32.99
- Switching Oxygen Sensor: 1 Wire, 15.25" Long, Non-Heated, Direct Fit (20472181) – $29.99
Air Flow Sensors
- Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit (3486109) – $31.99
- Oxygen Sensor: 1 Wire, 5.31" Long, Non-heated, Universal Fit (3486079) – $32.99
- Switching Oxygen Sensor: 1 Wire, 15.25" Long, Non-Heated, Direct Fit (20472181) – $29.99

What types of Fuel and Emissions Systems do you sell for my 1986 Cadillac Seville?

As of 2/5/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 1986 Cadillac Seville:

Can I get help with 1986 Cadillac Seville 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 Seville Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Cadillac Seville 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.

1986 Cadillac Seville Fuel and Emissions Systems

Dorman – 5/16 In. Quick Connector, 90 Degree w/ 18 In. of 5/16 In. Nylon Tube and a Union (Part No.800-060)

GM Genuine Parts – Fuel Pump Strainer (Part No.TS7)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)

Carquest Premium – Locking Fuel Cap: 10522, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10522)

Dorman – Help – Fuel Sending Unit Retainer Assortment (Part No.55812)

Bosch – Oxygen Sensor: 1 Wire, 5.31" Long, Non-heated, Universal Fit (Part No.11027)

Dorman – Nylon Nut – 1/4 In. (No.14) (Part No.961-351D)

Carquest Premium – Idle Speed Control Motor Connector (Part No.PTA1437)

Dorman – Help – Carburetor Pre-Heater Hose – 1-3/4 In. X 18 In. – Aluminum (Part No.96022)

Carquest Premium – Remanufactured Fuel Injector (Part No.A211-1143)

Bosch – Bosch Oxygen Sensor (Part No.C5010147361BOS)

Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.CVC1001)

Carquest Premium – Air Charge Temperature Sensor (Part No.ECA1198)

Felpro – Fuel Injector O-Ring Kit (Part No.ES 72099)

Dorman – Fuel Tank (Part No.576-033)

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Carquest Premium – Fuel Pump Pulsator A3541776 (Part No.A3541776)

ACDelco – GM Original Equipment Fuel Pump Tank Seal (Part No.E3004295048ACD)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1537)

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1013)

ACDelco – 6-Way Female Black Multi-Purpose Pigtail (Part No.PT787)

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with 2 O-Rings (Part No.217-3366)

Carquest Premium – Exhaust Gas Recirculation (EGR) Valve (Part No.EGC1957)

Carquest Premium – Fuel Pump U2603416 (Part No.U2603416)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1303)

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10074)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECC1011)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17591)

Carquest Premium – Fuel Cap: 10837, Round, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10837)

Carquest Premium – Fuel Cap: 10834, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10834)

Carquest Premium – Gas Cap: Twist On, Reduces Air Pollution, 1 Pack (Part No.10817)

Carquest Premium – Locking Fuel Cap: 10501, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10501)

Carquest Premium – Fuel Cap: 10819, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10819)

Carquest Premium – Locking Fuel Cap (Part No.10591)

Carquest Premium – Locking Fuel Cap: 10504, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10504)

Carquest Premium – Locking Fuel Cap: 10507, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10507)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17504)

Motorad – Tethered Gas Cap: Non-Locking, Original Equipment Manufacturer, Reduces Air Pollution, 1 Pack (Part No.MGC817T)

Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17507)

ACDelco – Professional Molded Coolant Hose (Part No.G2000584211ACD)

Autopart International Inc – Fuel Tank Cap (Part No.E20101953713API)

Dorman – Help – Carburetor Pre-Heater Hose – 1-3/4 In. X 18 In. – Aluminum (Part No.96022)

Dorman – Nylon Nut – 1/4 In. (No.14) (Part No.961-351D)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS005)

Carquest – Fuel Injector Connector (Part No.28426)

Carquest Premium – Fuel Injector Connector (Part No.AC761)

Carquest Premium – Fuel Injector Connector (Part No.ABA3465)

Wells Vehicle Electronics – Fuel Injector Repair Kit (Part No.2G1935)

Carquest Premium – Remanufactured Fuel Injector (Part No.A114-1063)

Bosch – Oxygen Sensor: 1 Wire, 14.57" Long, Non-heated, Exact Fit (Part No.12014)

Bosch – Oxygen Sensor: 1 Wire, 5.31" Long, Non-heated, Universal Fit (Part No.11027)

NTK – Switching Oxygen Sensor: 1 Wire, 15.25" Long, Non-Heated, Direct Fit (Part No.21002)

Delphi – Electric Fuel Pump: With Hose Clamps, Isolator, Splices, Isolator, 2-Wire Harness w/Connector (Part No.FE0115)

Delphi – Fuel Pump Strainer (Part No.FS0177)

Carquest Premium – Fuel Pump: Includes Wiring Harness (Part No.E219652)

Carquest Premium – Fuel Pump Strainer FS260336 (Part No.FS260336)

Carquest Premium – Fuel Pump Pulsator A3541776 (Part No.A3541776)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12427)

Carquest Premium – Fuel Cap Tester Adapter (Part No.12410)

Spectra Premium – Fuel Pump Strainer (Part No.STR08)

NTK – NTK Oxygen Sensor (Part No.C501063030NTK)

NTK – Multi-Purpose Temperature Sensor (Part No.EF0008)

ACDelco – Multi-Purpose Wire Connector with Leads (Part No.PT2164)

Delphi – Air Charge Temperature Sensor (Part No.TS10077)

FAE – Engine Coolant Temperature Sensor (Part No.C6020175714FAE)

ACDelco – Manifold Absolute Pressure Sensor (Part No.213-1561)

ACDelco – Water Temp. Sensor (Part No.C6020581131ACD)

Bosch – Bosch Oxygen Sensor (Part No.C501033456BOS)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1192)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECE1303)

Delphi – Manifold Absolute Pressure Sensor (Part No.PS10074)

ACDelco – GM Original Equipment Engine Coolant Temperature Sensor (Part No.C6020206740ACD)

FAE – Air Temp. Sensor (Part No.C6000301108FAE)

ACDelco – Engine Coolant Temperature Sensor (Part No.213-4396)