1994 Mercury Cougar Performance Engines

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Keep Your 1994 Mercury Cougar in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1994 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Camshafts, Performance Engine Rocker Arms, and Performance Engine Coolant Thermostats. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1994 Mercury Cougar Performance Engine at Advance Auto Parts is around $249.74, with a range that starts at $13.99 and goes up to $1,041.00. With 14 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod, and Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod Set start at just $15.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Oil Filters and Programmers. At Advance Auto Parts, we’re here to help you keep your 1994 Mercury Cougar in peak condition, inside and out.

Essential 1994 Mercury Cougar Performance Engines

Competition Cams – Magnum/Marine 244/244 Hydraulic Flat Cam (Part No.34-336-4)

Magnum/Marine 244/244 Hydraulic Flat Cam

from

$298.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Roller Cam (Part No.32-601-8)

Mutha' Thumpr 235/249 Hydraulic Roller Cam

from

$549.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
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Competition Cams – High Energy 218/218 Hydraulic Flat Cam (Part No.32-221-3)

High Energy 218/218 Hydraulic Flat Cam

from

$324.99
HYDRAULIC – High Energy: Everyday performance driving with stock converter.

Product Features:
  • HYDRAULIC – High Energy: Everyday performance driving with stock converter, noticeable idle
  • 268/268 Advertised Duration, 218/218 Duration @ .050″, .494″/.494″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Xtreme Energy Computer Controlled 208/216 Hydraulic Roller Cam (Part No.35-510-8)

Xtreme Energy Computer Controlled 208/216 Hydraulic Roller Cam

from

$549.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Competition Cams – High Energy Rocker Set With 1.6 Ratio For ’68-’77 Ford 289-351W With 3/8" Stud (Part No.1231-16)

High Energy Rocker Set With 1.6 Ratio For '68-'77 Ford 289-351W With 3/8" Stud

from

$232.99
Perfect for stock or High Energy camshaft equipped engines, our High Energy rockers eliminate slop and feature a long slot for high lift cams. These 1231 rockers feature a 1.6 ratio for 3/8″ stud ’78-’77 Ford 289, 302 and 351 Windsor.

Product Features:
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Competition Cams – Magnum Roller Rocker Arms for Ford; 3/8" Stud, 1.6 Ratio (Part No.1431-16)

Magnum Roller Rocker Arms for Ford; 3/8" Stud, 1.6 Ratio

from

$350.99
These Magnum Roller Rocker Arms for Ford V8 289-351W (Rail Type) 1968-89 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.6 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their roller tip reduces friction, while stiff design and superior ratio accuracy yield more effective valve lift. With a 15 to 30 horsepower increase over other rocker arms, Magnum Roller Rockers are perfect for performance applications with less than 350 lbs. open spring pressure. Don’t accept inferior products or cheap knock-offs, look for the COMP Cams logo stamped into the underside of every Magnum Rocker.

Product Features:
  • Ultimate street rocker designed for serious performance enthusiasts
  • Constructed from 8620 chromemoly steel, a superior material that will not flex and assures maximum lift
  • Roller tip reduces friction while stiff design and superior ratio accuracy yields more effective valve lift
  • 15 to 30 horsepower increase over stock rocker arms
  • Use in any applications with less than 350 lbs. open spring pressure
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Competition Cams – Magnum Roller 1.72 Ratio Rocker Arm for BBC, Ford 429-460, 351C/M with 7/16" Stud (Part No.1411-1)

Magnum Roller 1.72 Ratio Rocker Arm for BBC, Ford 429-460, 351C/M with 7/16" Stud

from

$23.29
Magnum Roller 1.72 Ratio Rocker Arm for BBC, Ford 429-460, 351C/M with 7/16" Stud

Competition Cams – ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST (Part No.17043-16)

ROCKER ARMS, DIE CAST ALUM SMALL BLOCK FORD 1.6 1 ST

from

$249.99
The COMP Cams High Energy Die-Cast Aluminum Roller Rocker Arms are new rocker arms from the valve train leader that have been designed for street and moderate race use. They feature a die-cast body created from aluminum with a needle bearing fulcrum and roller tip. The die-cast, larger than stock body offers the strength properties and light weight of aluminum while the specially engineered fulcrum and roller tip decrease friction and lower oil temperatures, thus improving response and horsepower.

Product Features:
  • Cost effective aluminum construction provides superior strength to weight ratio
  • Needle bearing fulcrum and roller tip reduce friction and lower oil temperatures for improved response and horsepower
  • Durable design increases valve lift while withstanding the rigors of moderate race use
  • Die-formed aluminum body is larger than stock, and may require modifications to stock valve covers for clearance.
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Competition Cams – 10 Degree Tool Steel Retainer for All Valves with 1.500"-1.550" O.D. Springs (Part No.1731-1)

10 Degree Tool Steel Retainer for All Valves with 1.500"-1.550" O.D. Springs

from

$27.99
CNC-machined for consistency, this 10 degree lightweight tool steel retainer features light weight, exceptional strength and wear characteristics. Fits engines with 1.500″-1.550″ O.D. valve spring.

Product Features:
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Competition Cams – 10 Degree Steel Retainer for 26120 Beehive Spring (Part No.795-1)

10 Degree Steel Retainer for 26120 Beehive Spring

from

$10.99
10 Degree Steel Retainer for 26120 Beehive Spring

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9733)

Performer Series Retainer (Qty 16)

from

$141.99
Valve spring retainers for use OE cast iron heads. Superior quality heat-treated steel. Machined for strength with black oxide finish. Finish ensures rust and corrosion protection.

Product Features:
  • Valve Spring Retainers for Use OE Cast Iron Heads
  • Superior Quality Heat-Treated Steel
  • Machined for Strength with Black Oxide Finish
  • Finish Ensures Rust and Corrosion Protection
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Competition Cams – 1 Spring (Part No.26113-1)

1 Spring

from

$24.99
1 Spring

Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

from

$32.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

High Performance 180 Degree Thermostat for Increased Flow

from

$29.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 180 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens at 160 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully opens at Correct Temperature Consistently Regardless of engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Edelbrock – Pushrod Set for Ford 289-302 (Part No.9658)

Pushrod Set for Ford 289-302

from

$216.99
Edelbrock part #9658 Pushrods are designed for small-block Ford 289-302 V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precis

Product Features:
  • 6.43 in. Length
  • 0.312 in. Diameter
  • 4130 Chromoly Steel Material
  • Black Oxide Finish
  • Made In The USA
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Competition Cams – High Energy 8.616" Long, 5/16" Diameter Pushrod Set (Part No.7844-16)

High Energy 8.616" Long, 5/16" Diameter Pushrod Set

from

$48.99
High Energy 8.616" Long, 5/16" Diameter Pushrod Set

Edelbrock – Pushrod Set for Ford 351M/400 V-8 engine applications (Part No.9633)

Pushrod Set for Ford 351M/400 V-8 engine applications

from

$198.99
Product Features:
  • 9.5 in. Length
  • 0.312 in. Diameter
  • 4130 Chromoly Steel Material
  • Black Oxide Finish
  • Made In The USA
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Edelbrock – Pushrod Set for Small Block Ford 289-302 V-8, Black Oxide finish (Part No.9632)

Pushrod Set for Small Block Ford 289-302 V-8, Black Oxide finish

from

$221.99
Product Features:
  • Case-Hardened Tubing
  • Surface Hardening
  • Welded Ends
  • 0.3125 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Competition Cams – High Energy 6.881" Long, 5/16" Diameter Pushrod – Set of 16 (Part No.7831-16)

High Energy 6.881" Long, 5/16" Diameter Pushrod - Set of 16

from

$66.99
High Energy Pushrods from COMP Cams are an affordable, high quality solution when building street rods, RVs and daily drivers. High Energy Pushrods have a durable one-piece construction that meets or exceeds all OE pushrod specifications and fit perfectly with High Energy and Magnum Rocker Arms.

Product Features:
  • 5/16″ diameter, 6.881″ length for Small Block Ford 255 and 302, ’65-up with Flat Tappet Cam
  • Best choice when building street rods, RVs or daily drivers
  • Meet or exceed all OE pushrod specifications
  • Mate perfectly with High Energy and Magnum Rockers
  • Durable one-piece construction
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Edelbrock – Pushrod Set for Ford 289-302 (Part No.9655)

Pushrod Set for Ford 289-302

from

$219.99
Edelbrock part #9655 Pushrods are designed for small-block Ford 289-302 V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precis

Product Features:
  • 6.4 in. Length
  • 0.312 in. Diameter
  • 4130 Chromoly Steel Material
  • Black Oxide Finish
  • Made In The USA
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Competition Cams – Magnum 8.680" Long, .080" Wall, 5/16" Diameter Pushrod (Part No.7651-1)

Magnum 8.680" Long, .080" Wall, 5/16" Diameter Pushrod

from

$18.99
Magnum 8.680" Long, .080" Wall, 5/16" Diameter Pushrod

Competition Cams – High Energy 6.248" Long, 5/16" Diameter Pushrod Set (Part No.7826-16)

High Energy 6.248" Long, 5/16" Diameter Pushrod Set

from

$49.99
High Energy 6.248" Long, 5/16" Diameter Pushrod Set

Competition Cams – Magnum 8.400" Long, .080" Wall, 5/16" Diameter Pushrod (Part No.7502-1)

Magnum 8.400" Long, .080" Wall, 5/16" Diameter Pushrod

from

$14.99
Magnum 8.400" Long, .080" Wall, 5/16" Diameter Pushrod

Competition Cams – High Energy 9.500" Long, 5/16" Diameter Pushrod Set (Part No.7837-16)

High Energy 9.500" Long, 5/16" Diameter Pushrod Set

from

$42.99
High Energy 9.500" Long, 5/16" Diameter Pushrod Set

Most Popular Performance Engine Camshafts for 1994 Mercury Cougars

Enhance your 1994 Mercury Cougar with one of the 2 Performance Engine Camshafts we have in stock, starting at just $1,041.00.

Competition Cams – Xtreme Energy 226/230 Cams For Ford 4.6/5.4L Modular 2 Valve With Pi Heads (Part No.102500)

Xtreme Energy 226/230 Cams For Ford 4.6/5.4L Modular 2 Valve With Pi Heads

from

$1041.00
Excellent torque. Better low and mid-range torque with more power. Will work with stock computer, best with custom tuning.

Product Features:
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Competition Cams – Xtreme Energy 224/232 Cams For Ford 4.6/5.4L Modular 2 Valve (Part No.102100)

Xtreme Energy 224/232 Cams For Ford 4.6/5.4L Modular 2 Valve

from

$1041.00
Excellent upgrade from stock cam. Improved torque and power. Works with stock computer, best with custom tuning. Smooth idle.

Product Features:
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Best-Selling 1994 Mercury Cougar Performance Engine Rocker Arm

Upgrade your Cougar with our best-selling Performance Engine Rocker Arm.

Competition Cams – Ultra Pro Magnum Rocker Arm with 1.7 Ratio for Ford 3.8L V6 with 3/8" Stud (Part No.1619-1)

Ultra Pro Magnum Rocker Arm with 1.7 Ratio for Ford 3.8L V6 with 3/8" Stud

from

$50.99
This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, this rocker fits Ford 3.8L V6 with a 3/8″ diameter stud.

Product Features:
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Top-Quality Performance Engine Coolant Thermostats for 1994 Mercury Cougars

Choose a high-quality OEM or aftermarket Performance Engine Coolant Thermostat for Mercury Cougars and enjoy top-notch performance from $29.99.

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

High Performance 180 Degree Thermostat for Increased Flow

from

$29.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 180 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
See More

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens at 160 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully opens at Correct Temperature Consistently Regardless of engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
See More

Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

from

$32.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
See More

Top Picks for 1994 Mercury Cougar Performance Engine Push Rods

Invest in one of our 2 durable Performance Engine Push Rods for your 1994 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

Competition Cams – Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod Set (Part No.7635-16)

Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod Set

from

$225.99
Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod Set

Competition Cams – Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod (Part No.7635-1)

Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod

from

$15.99
Magnum 7.150" Long, .080" Wall, 5/16" Diameter Pushrod

Performance Engine Valve Springs for 1994 Mercury Cougars

Make a smart move for your 1994 Mercury Cougar with products all priced from $24.99 to $199.99.

Competition Cams – 12 Springs (Part No.26918-12)

12 Springs

from

$199.99
12 Springs

Competition Cams – 1 Spring (Part No.26113-1)

1 Spring

from

$24.99
1 Spring

Competition Cams – 1 Spring (Part No.26918-1)

1 Spring

from

$24.99
1 Spring

FAQs for 1994 Mercury Cougar Performance Engines

What are the best-selling Performance Engines for 1994 Mercury Cougars?

Out of 14 Performance Engines that fit 1994 Mercury Cougars, the following parts are the top sellers:

What’s the price range for 1994 Mercury Cougar Performance Engines?

The prices of Performance Engines for the 1994 Mercury Cougar range from $13.99 up to $1,041.00 for the most premium parts.

What is the average price of a Performance Engine for a 1994 Mercury Cougar?

The average price for Performance Engines for the 1994 Mercury Cougar is $249.74. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other Mercury Cougar model years?

Yes, we carry Performance Engines for 29 model years of Mercury Cougars between 1967 and 1997. The following model years are the most popular for Performance Engine purchases: 1997, 1996, 1995, 1993, 1992, 1991, 1990, 1989, and 1988.

What are the cheapest Performance Engines for my 1994 Mercury Cougar?

The cheapest 1994 Mercury Cougar Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1994 Mercury models?

Yes. We stock Performance Engines for 3 other popular 1994 Mercury models. Some of the most popular are 1994 Grand Marquis Performance Engines, 1994 Villager Performance Engines, 1994 Sable Performance Engines, and 1994 Topaz Performance Engines.

What are the top-rated Performance Engines that fit the 1994 Mercury Cougar?

The one 1994 Mercury Cougar Performance Engine we have in stock is the High Energy Hydraulic Flat Lifter for Ford 289-351withC/M-400M, 429-460 and V6.. It costs $13.99.

What types of Performance Engines do you sell for my 1994 Mercury Cougar?

As of 6/2/26, these are some of the most in-demand types of Performance Engines for a 1994 Mercury Cougar:

Can I get help with 1994 Mercury Cougar Performance Engine orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Performance Engines and more.

What is your return policy for Mercury Cougar Performance Engines?

Advance Auto Parts keeps returns simple. For new Mercury Cougar Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.