1978 Mercury Cougar Fuel and Emissions Systems

Essential 1978 Mercury Cougar Fuel and Emissions Systems

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

Fuel Tank Cleaning Kit

from

$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

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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Felpro – Fuel Pump Mounting Gasket (Part No.6579)

Fuel Pump Mounting Gasket

from

$2.99
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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Spectra Premium – Fuel Tank Strap (Part No.ST102)

Fuel Tank Strap

from

$40.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank straps meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our expertise
  • Direct fit ensures safe, secure fuel tank installation
  • Product individually packaged and labeled to help reduce product damage prior to installation
  • Industry leading coverage on straps for plastic tanks
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Dorman – Fuel Tank Strap Set (Part No.578-102)

Fuel Tank Strap Set

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$29.99
Recommended for replacement whenever the fuel tank is replaced or serviced, this strap is a direct replacement for the original. Manufactured from durable materials to withstand harsh road and weather conditions.

Product Features:
  • Direct replacement – this fuel tank strap matches the fit, function and performance of the original part
  • Ideal solution – recommended for replacement when the fuel tank is serviced or replaced
  • Durable construction – manufactured from quality materials for superior service and reliability
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Carquest Premium – Ported Vacuum Switch (Part No.ECA1537)

Ported Vacuum Switch

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$52.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Ported Vacuum Switch (Part No.SBA5435)

Ported Vacuum Switch

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$19.79
Ported Vacuum Switch

Cardone – Smog Air Pump (Part No.32-292)

Smog Air Pump

from

$131.99
CARDONE Remanufactured Smog Pumps are engineered for quick installation and no comebacks. These pumps come with all necessary components for easy installation, while other brands leave out integral components, such as inlets and outlets that commonly break during installation. CARDONE engineers pay special attention to proper vane size and shape on each application to maintain proper flow, while other brands consolidate vane sizes for their own convenience.

Product Features:
  • 100% testing of all units guarantees reliable performance every time
  • High temperature grease extends bearing life, resulting in longer pump life
  • New carbon shoes/vanes on every unit ensure accurate air output to meet today’s stringent emissions standards
  • Guaranteed fit and function
  • Meets or exceeds O.E.M performance
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Cardone – Smog Air Pump (Part No.32-121)

Smog Air Pump

from

$196.99
CARDONE Remanufactured Smog Pumps are engineered for quick installation and no comebacks. These pumps come with all necessary components for easy installation, while other brands leave out integral components, such as inlets and outlets that commonly break during installation. CARDONE engineers pay special attention to proper vane size and shape on each application to maintain proper flow, while other brands consolidate vane sizes for their own convenience.

Product Features:
  • 100% testing of all units guarantees reliable performance every time
  • High temperature grease extends bearing life, resulting in longer pump life
  • New carbon shoes/vanes on every unit ensure accurate air output to meet today’s stringent emissions standards
  • Guaranteed fit and function
  • Meets or exceeds O.E.M performance
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Felpro – Fuel Injection Plenum Gasket Set (Part No.MS 92914)

Fuel Injection Plenum Gasket Set

from

$5.49
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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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Mahle – FI Throttle Body Mou (Part No.C7001295711MAH)

FI Throttle Body Mou

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$4.47
FI Throttle Body Mou

Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.CVA1013)

Secondary Air Injection Pump Check Valve

from

$69.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.CVC1032)

Secondary Air Injection Pump Check Valve

from

$70.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Motorcraft – Vacuum Control Valve (Part No.D3020672044MTR)

Vacuum Control Valve

from

$15.32
Vacuum Control Valve

Carquest Premium – Electric Fuel Pump Inertia Switch (Part No.SBA4426)

Electric Fuel Pump Inertia Switch

from

$84.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Fuel Pump Lock Ring (Part No.579-003)

Fuel Pump Lock Ring

from

$9.99
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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Carquest Premium – Fuel Tank Lock Ring (Part No.LR2001)

Fuel Tank Lock Ring

from

$20.99
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.

Product Features:
  • Precision stamped for perfect fit and pump position
  • Always replace lock ring as a part of fuel pump service
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Carquest Premium – Gas Cap: Twist On, Reduces Air Pollution, 1 Pack (Part No.10817)

Gas Cap: Twist On, Reduces Air Pollution, 1 Pack

from

$15.79
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.

Product Features:
  • 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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Carquest Premium – Locking Fuel Cap (Part No.10501D)

Locking Fuel Cap

from

$31.99
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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Carquest Premium – Keyed Alike Locking Fuel Cap (Part No.17504)

Keyed Alike Locking Fuel Cap

from

$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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Hella – Electric Fuel Pump (Part No.E3000417586HEL)

Electric Fuel Pump

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$196.22
The Hella Electric Fuel Pump meets or exceeds the OE specifications for fit, durability and performance.

Product Features:
  • OE-Equivalent electric fuel pump.
  • Direct fit for easy installation.
  • OE connections and fittings.
  • Highly efficient turbine design.
  • Designed for quieter operation.
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Carquest Premium – Mechanical Fuel Pump 3542730: Includes Gasket (Part No.3542730)

Mechanical Fuel Pump 3542730: Includes Gasket

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$30.99
Carquest Premium mechanical fuel pumps are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. Every mechanical fuel pump is 100% tested throughout the entire manufacturing process for worry-free performance. Carquest Premium mechanical fuel pumps include the installation gaskets needed for each application. Carquest Premium mechanical 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
  • Special heat-treated rocker arms and case-hardened pins to ensure lasting performance
  • All fuel pumps are 100% performance tested
  • Includes installation gaskets or seals where applicable
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Carquest Premium – Mechanical Fuel Pump 3541157: Includes Gasket (Part No.3541157)

Mechanical Fuel Pump 3541157: Includes Gasket

from

$33.99
Carquest Premium mechanical 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. Every mechanical fuel pump is 100% tested throughout the entire manufacturing process for worry-free performance. Carquest Premium mechanical fuel pumps include the installation gaskets needed for each application. Carquest Premium mechanical 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
  • Special heat-treated rocker arms and case-hardened pins to ensure lasting performance
  • All fuel pumps are 100% performance tested
  • Includes installation gaskets or seals where applicable
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Felpro – EGR/EXHAUST AIR SUPPLY GASKET (Part No.70149)

EGR/EXHAUST AIR SUPPLY GASKET

from

$4.49
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Carquest Premium – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.EVA1068)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$1.79
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Felpro – Exhaust Gas Recirculation (EGR) Valve Gasket (Part No.70020)

Exhaust Gas Recirculation (EGR) Valve Gasket

from

$3.49
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Spectra Premium – Fuel Tank (Part No.F5)

Fuel Tank

from

$219.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tanks meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise
  • Lock ring included with each tank to reduce installation time and to ensure a complete repair
  • Made with corrosion resistant, OE approved, Ni Terne steel for durability
  • Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks
  • Each new fuel tank is road tested to ensure real world performance and to verify that each design meets our high standards for quality
  • Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
  • Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed
  • Packaged with double-layered foam wrap and heavy-gauge corrugated board to ensure product quality at installation
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KAI – Fuel Tank (Part No.FTK010186SS)

Fuel Tank

from

$429.99
New Platinum Pro Stainless Steel Fuel Tank 20 Gallon

Product Features:
  • 20 Gallon, With Drain Plug
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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KAI – Fuel Tank (Part No.FTK010186)

Fuel Tank

from

$199.99
New Platinum Pro Fuel Tank 20 Gallon

Product Features:
  • 20 Gallon, With Drain Plug
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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1978 Mercury Cougar Fuel and Emissions Systems

You count on your 1978 Mercury Cougar to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Fuel and Emissions Systems. With 32 Fuel and Emissions Systems ranging in price from $1.99 to $334.99, you’re sure to find everything you need for your 1978 Mercury Cougar.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 11 different brands like Felpro, Delphi, and Carquest Premium. 1978 Mercury Cougar Fuel and Emissions Systems start as low as $1.99!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 460 extensive product reviews on 1978 Mercury Cougar Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Fuel Cap: 10810, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack with 4.7 stars and Mechanical Fuel Pump with 1.0 stars.

Did we mention you can order your Fuel and Emissions Systems from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Fuel and Emissions Systems inventory for your 1978 Mercury Cougar below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 1978 Mercury Cougar

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Mercury Cougar running right for years to come. In our inventory you’ll find brands like Felpro, Delphi, Carquest Premium, and even more.

Popular Felpro Fuel and Emissions Systems

You’ll find popular Felpro brand products across Fuel Pumps. All are waiting to get your 1978 Mercury Cougar back on the road. Some of the top-rated Felpro products in these categories are:
Fuel Pump Mounting Gasket
from $2.99
(26)
Fuel Pump Mounting Gasket
Fuel Pump Block-Off Plate Gaskets

Top-Rated Fuel and Emissions Systems


If are what you’re looking for, our inventory holds plenty. We stock brand Fuel and Emissions Systems for your 1978 Mercury Cougar, and some of our most reviewed parts include:
Electric Fuel Pump
from $64.99
(37)
Electric Fuel Pump
Fuel Pumps

FAQs for 1978 Mercury Cougar Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 1978 Mercury Cougar?

Out of 32 Fuel and Emissions Systems for the 1978 Mercury Cougar, the most popular in our inventory are:
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits

What are the top-rated 1978 Mercury Cougar Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 1978 Mercury Cougar based on customer reviews/ratings are:
Fuel Cap: 10810, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
from $9.49
(3)
Fuel Cap: 10810, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“But it works perfect and at a ⅓ of the price. Sweet”
Mechanical Fuel Pump
from $124.99
(3)
Mechanical Fuel Pump
“leaked around the adjustable bolts returned and got a second one and it leaked in the same place.”
Fuel Tank
from $240.99
(1)
Fuel Tank
“this is a great gas tank! this tank fits sedans and trucks. this gas tank does not fit mercury cougar station wagons, i have a 77 mercury cougar wagon”