1981 Mercury Cougar Engine Parts

Essential 1981 Mercury Cougar Engine Parts

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-3380A 1)

Engine Connecting Rod Bearing Set

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$51.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Felpro – Engine Crankshaft Seal Kit (Part No.BS 40620)

Engine Crankshaft Seal Kit

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$29.99
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:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Carquest – Crankshaft Sensor (Part No.35C1015)

Crankshaft Sensor

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$31.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • 100% testing to meet OE performance
  • High temperature resistance for longer life
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Felpro – Engine Crankshaft Seal Kit (Part No.TCS 45107)

Engine Crankshaft Seal Kit

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$17.29
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
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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Dorman – Rubber Expansion Plug 2 In. – Size Range 2 In. – 2-1/8 In. (Part No.02607)

Rubber Expansion Plug 2 In. - Size Range 2 In. - 2-1/8 In.

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$11.49
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • 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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ARP Auto Racing – For Use With 4.6L Modular V8 Ford, 18Mm Socket, 12Mm X 1.5, 1.8"L Under Head (Part No.156-2501)

For Use With 4.6L Modular V8 Ford, 18Mm Socket, 12Mm X 1.5, 1.8"L Under Head

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$39.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Made In USA
  • M12 x 1.5 RH Thread Size
  • 1.8″ Underhead Length
  • Sold Individually
  • 200,000 PSI
  • Will NOT Fit the newer 5.4L Cobra Jet/Shelby GT500 Crankshafts
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Sealed Power – Engine Rocker Arm Kit (Part No.R-855)

Engine Rocker Arm Kit

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$8.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Pivot
  • 1 Arm
  • Utilizes ISO & QS certified manufacturing
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Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4907M 40)

Engine Crankshaft Main Bearing Set

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$62.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength – provides conformability required for older applications
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S321)

Engine Timing Crankshaft Sprocket

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$7.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
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Dorman – Steel Cup Expansion Plug 3/4 In., Height 0.250 (sold by each) (Part No.555-012)

Steel Cup Expansion Plug 3/4 In., Height 0.250 (sold by each)

from

$1.29
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • 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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Melling – Stock Replacement OE Type Oil Pump (Part No.M211)

Stock Replacement OE Type Oil Pump

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$184.99
Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Melling oil pumps are tested for pressure and flow under operating conditions to ensure quality
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Cloyes Performance – High Performance Timing Chain (Part No.9-145)

High Performance Timing Chain

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$17.99
Street Performance 3/8″ Pitch Double Roller Replacement True Roller Chain. Seamless 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Breaking Strength while Remaining Ductile for Toughness. Prestressed to Increase Fatigue Life. USA Made.

Product Features:
  • A timing chain synchronizes the rotation of the crankshaft and camshaft(s), ensuring proper timing of the engines valve events for each cylinder
  • Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • From stock replacement to high performance, Cloyes has the most complete timing chain catalog
  • Cloyes parts are CAD designed and manufactured using premium materials. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Cloyes recommends the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced as these components play a vital role in system stability and accurate timing
  • Refer to our online catalog for detailed application-specific information
  • Keep your engines valvetrain in perfect time with Cloyes, the world leader in timing drive systems
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Spectre – W3 Engine Kit Ford (Part No.54383)

W3 Engine Kit Ford

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$108.99
Spectre’s chrome engine kits are designed to give the top of your engine an amazing look in one neat package. This chrome engine kit includes chrome valve covers and chrome valve cover bolts.

Product Features:
  • Chrome valve covers
  • Chrome valve cover bolts
  • Dresses up the engine
  • Triple plated chrome
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Sealed Power – Engine Connecting Rod Bearing (Part No.4395A)

Engine Connecting Rod Bearing

from

$8.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
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Felpro – Cylinder Head Gasket Set (Part No.HS 8857 PT-8)

Cylinder Head Gasket Set

from

$161.99
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:
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
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Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 72683)

Engine Valve Stem Oil Seal Set

from

$27.49
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:
  • RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
  • QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
  • ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
  • INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
  • COVERAGE — Available for domestic and foreign nameplate vehicles
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Edelbrock – Rollin’ Thunder Camshaft for Ford 5.0L V8 (Part No.3722)

Rollin' Thunder Camshaft for Ford 5.0L V8

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$508.99
Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
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Felpro – Engine Gasket Set (Part No.FS 8554 PT)

Engine Gasket Set

from

$89.99
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:
  • Full Sets contain all the gaskets and seals necessary for a complete engine overhaul
  • 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
  • Validated for fit, form, and function
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Sealed Power – Engine Piston (Part No.WH273CP 30)

Engine Piston

from

$34.99
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Helps improve cylinder sealing for less blow-by
  • Retains standard ring gaps in top groove
  • DUROSHIELD« skirt-coated piston
  • Moly-graphite coating extends engine life
  • Reduces friction for higher fuel economy
  • Prevents damage from inadequate lubrication on start-up
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PowerBond – Premium OEM Replacement Harmonic Balancer; 161.5mm Diameter (Part No.PB1205N)

Premium OEM Replacement Harmonic Balancer; 161.5mm Diameter

from

$122.99
For use on the most popular passenger car, light commercial and four-wheel drive applications, Dayco harmonic balancers use special rubber compounds to dampen and remove engine harmonics and add to engine performance. Manufactured using a premium ductile iron casting and injection bonded dampening rubber, Dayco harmonic balancers offer engine builders and technicians the highest quality replacement to standard OEM balancers, which are typically made with press inserted dampening rubber. Dayco balancers utilize both inserted and pressure-bonded rubber to provide superior bonding strength between the inner and outer balancer rings, helping minimize spin and dislocation.

Product Features:
  • Designed as premium OEM replacement balancers for serpentine and V-belt drives
  • Manufactured with ductile iron casting and injection bonded dampening rubber
  • Engineered to offer superior bonding strength between the balancer rings
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Dorman – Engine Oil Pan: Direct Fit, Aluminum, Center Sump, 5 Quart (Part No.264-028)

Engine Oil Pan: Direct Fit, Aluminum, Center Sump, 5 Quart

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$135.99
Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this engine oil pan is made to match the original pan on specific vehicles
  • Complete assembly – includes replacement pan and drain plugs to match original components
  • Durable design – high-strength coating prevents future corrosion
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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Cloyes Gear – Engine Timing Camshaft Sprocket (Part No.S764T)

Engine Timing Camshaft Sprocket

from

$33.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Refer to our online catalog for detailed application-specific information
See More

Edelbrock – RPM Small-Block Ford 2.02" Cylinder Head Hydraulic Roller Camshaft (Part No.60255)

RPM Small-Block Ford 2.02" Cylinder Head Hydraulic Roller Camshaft

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$1035.99
The Edelbrock #60255 Performer RPM cylinder head is designed for use with 289-351W c.i.d. Small-Block Ford applications. The Edelbrock #60255 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-th

Product Features:
  • Complete Single For Hydraulic Roller
  • 60cc Combustion Chamber Volume
  • 190cc Intake/60cc Exhaust Runner Volume
  • 2.02 in. Intake/1.6 in. Exhaust Valve Diameter
  • 0.625 in. Deck Thickness
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Edelbrock – Sure Seat Valve Springs for Cylinder Heads (Part No.5823)

Sure Seat Valve Springs for Cylinder Heads

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$152.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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Felpro – Engine Oil Pump Gasket (Part No.70132)

Engine Oil Pump 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 and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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National – Multi Purpose Seal (Part No.482041N)

Multi Purpose Seal

from

$15.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Dorman – Rubber Expansion Plug 1-3/4 In. – Size Range 1-3/4 In. – 1-7/8 In. (Part No.02605)

Rubber Expansion Plug 1-3/4 In. - Size Range 1-3/4 In. - 1-7/8 In.

from

$8.29
Our Engine Oil Galley Plugs are available in multiple styles, including Cup Type, Pilot Seal, Reverse Taper, Concave, Quick-Seal® Rubber and Quick-Seal ® Copper.

Product Features:
  • Many sizes available
  • Conveniently available in packs of different quantities
  • Constructed from high quality steel, copper, brass, or rubber
  • Dorman’s Engine Oil Galley Plugs are constructed to strict engineering quality standards
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Mahle – Cyl. Head Bolt Set (Part No.A3031566828MAH)

Cyl. Head Bolt Set

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$68.99
Cyl. Head Bolt Set

1981 Mercury Cougar Engine Parts

You count on your 1981 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 Engine Parts. With 280 Engine Parts ranging in price from $0.43 to $1,751.99, you’re sure to find everything you need for your 1981 Mercury Cougar.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 19 different brands like Sealed Power, Felpro, and Dorman. 1981 Mercury Cougar Engine Parts start as low as $0.43!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 796 extensive product reviews on 1981 Mercury Cougar Engine Parts. Some of the top-rated Engine Parts products we carry are Oil Seal with 4.9 stars and Harmonic Balancer Assembly with 3.6 stars.

Did we mention you can order your Engine Parts 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 Engine Parts inventory for your 1981 Mercury Cougar below to get started!

Top-Rated Engine Parts Brands For Your 1981 Mercury Cougar

Trusted Engine Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1981 Mercury Cougar running right for years to come. In our inventory you’ll find brands like Sealed Power, Felpro, Dorman, and even more.

Popular Carquest Premium Engine Parts

You’ll find popular Carquest Premium brand products across Engine Timing Parts. All are waiting to get your 1981 Mercury Cougar back on the road. Some of the top-rated Carquest Premium products in these categories are:
Timing Set, 3-Piece
from $22.99
(1)
Timing Set, 3-Piece
Timing Sets

Top-Rated Felpro Engine Parts


If Felpro are what you’re looking for, our inventory holds plenty. We stock Felpro brand Engine Parts for your 1981 Mercury Cougar, and some of our most reviewed Felpro parts include:
TIMING COVER GASKET SET
from $23.99
(34)
TIMING COVER GASKET SET
Timing Cover Gasket Sets
Engine Valve Cover Gasket Set
from $46.99
(32)
Engine Valve Cover Gasket Set
Valve Cover Gaskets
VALVE COVER GASKET SET
from $25.99
(20)
VALVE COVER GASKET SET
Valve Cover Gaskets

FAQs for 1981 Mercury Cougar Engine Parts

What are the most purchased Engine Parts for the 1981 Mercury Cougar?

Out of 280 Engine Parts for the 1981 Mercury Cougar, the most popular in our inventory are:
Engine Valve Lifter
from $9.79
(11)
Engine Valve Lifter
Engine Valve Lifters
Engine Valve Lifter
from $10.29
(1)
Engine Valve Lifter
Engine Valve Lifters

What are the top-rated 1981 Mercury Cougar Engine Parts?

Top-rated Engine Parts for your 1981 Mercury Cougar based on customer reviews/ratings are:
Oil Seal
from $10.79
(62)
Oil Seal
“worked great”
Harmonic Balancer Assembly
from $106.99
(11)
Harmonic Balancer Assembly
“Good oem type replacements”
Stock Replacement OE Type Oil Pump
from $46.99
(8)
Stock Replacement OE Type Oil Pump
“Product was a perfect fit top notch at a great price”