2004 Mercury Grand Marquis Engine Internals

Keep Your 2004 Mercury Grand Marquis in Top Shape with Quality Engine Internals

Whether you’re repairing or upgrading your Engine Internal, using high-quality parts is key to keeping your 2004 Mercury Grand Marquis looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Oversized Main Bearings, Standard Individual Rod Bearings, and Standard Rod Bearing Sets. 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.

Top-Rated Engine Internals from Trusted Brands

Looking for a reliable Engine Internal? We’ve got you covered with options from brands you know and trust like FELPRO, Sealed Power, and National. For example, FELPRO Engine Internals start at just $15.99 with an average 4.6 star rating. Sealed Power and National offer similar pricing and quality, backed by strong customer feedback. With over 176 reviews and a solid 5 star average, you can shop with confidence knowing other Mercury Grand Marquis owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2004 Mercury Grand Marquis Engine Internal at Advance Auto Parts is around $63.02, with a range that starts at $6.99 and goes up to $205.99. With 25 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like Engine Crankshaft Seal Kit, CRANKSHAFT FRONT SEAL SET, and Harmonic Balancer Bolt start at just $15.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Internal, don’t forget to check out other key components like Engine Gaskets and Seals and Engine Timing Parts. At Advance Auto Parts, we’re here to help you keep your 2004 Mercury Grand Marquis in peak condition, inside and out.

Essential 2004 Mercury Grand Marquis Engine Internals

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-2600A 20)

Engine Connecting Rod Bearing Set

from

$60.99
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:
  • 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
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-3380A 30)

Engine Connecting Rod Bearing Set

from

$60.99
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:
  • 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
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-3400CP)

Engine Connecting Rod Bearing Set

from

$45.99
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 apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Piston Ring Set (Part No.E-251X)

Engine Piston Ring Set

from

$85.99
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:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-251KC)

Engine Piston Ring Set

from

$68.99
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:
  • Chrome plated ring face
  • Increases wear resistance in dirty air conditions
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-916K .75MM)

Engine Piston Ring Set

from

$138.99
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:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Main Bearing Set (Part No.134M)

Main Bearing Set

from

$81.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components.

Product Features:
  • H14 Super Duty alloy material
  • Best bronze alloy material
  • Does not have flash tin plating
  • Extreme fatigue resistance & strength
  • 3/4 Grooved
  • Silicon particles help polish crankshaft journal (reduces wear during operation)
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4125MA)

Engine Crankshaft Main Bearing Set

from

$57.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Main Bearing Set (Part No.129M 10)

Main Bearing Set

from

$111.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • IROX coating
  • Polymer coating enhances bearing
  • Made with silicon for greater surface hardness
  • Silicon particles help polish crankshaft journal (reduces wear during operation)
See More

Felpro – REAR MAIN BEARING SEAL SET (Part No.BS 40042)

REAR MAIN BEARING SEAL SET

from

$16.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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
See More

National – Multi-Purpose Seal (Part No.2942)

Multi-Purpose Seal

from

$13.49
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
  • Resistance to EP lubricants
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40620)

Engine Crankshaft Seal Kit

from

$30.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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
See More

Sealed Power – Engine Piston Set (Part No.H878CP)

Engine Piston Set

from

$55.99
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
See More

Sealed Power – Engine Piston Set (Part No.H653CP 40)

Engine Piston Set

from

$35.99
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
See More

Sealed Power – Engine Piston (Part No.W463P)

Engine Piston

from

$25.99
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:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Set (Part No.H878CP .50MM)

Engine Piston Set

from

$55.99
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
See More

Sealed Power – Engine Piston (Part No.WH654CP)

Engine Piston

from

$26.99
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
See More

Sealed Power – Engine Piston Set (Part No.H653CP 60)

Engine Piston Set

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
See More

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.7847)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

from

$44.99
Mr. Gasket Harmonic Balancer Bolt for Ford V8 except 351C. Fits 221,260,289,302,351W small block Windsor engines, 332,352,360,390,406,410,427,428 FEs, and 429,460 385 series big blocks. 5/8-18 x 2 inch long heat treated black oxide coated Grade 8 alloy steel with a thick parallel ground washer to provide accurate, uniform torque.

Product Features:
  • Heat treated black oxide coated Grade 8 alloy steel
  • Thick parallel ground washer provides more accurate, uniform torque
  • Hex Prevents Socket Slippage
  • Accurate And Uniform Torque
  • Black Plated Finish
See More

Dorman – Harmonic Balancer Bolt (Part No.926-886)

Harmonic Balancer Bolt

from

$17.99
This engine harmonic balancer bolt 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 harmonic balancer bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt 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
See More

ARP Auto Racing – For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" – 18 Thread Size (Part No.150-2501)

For Use With 289/ 460 Cubic" Ford, 5/8" Socket Size, 5/8" - 18 Thread Size

from

$38.99
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 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 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
  • Professional Quality Fasteners
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 2.05″ Underhead Length
  • Ford 289-460 (except 351C)
  • Sold Individually
  • 200,000 PSI
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.1985A .50MM)

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
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.3360CPA 10)

Engine Connecting Rod Bearing

from

$18.49
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:
  • Steel-backed bronze alloy lining with overplate
  • Popular for fatigue resistance & strength
  • Provides conformability required for older apps
  • Our standard material is comparable to competitors performance bearing
  • Note – This material offers less resistance to wear & corrosion than other materials.
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.1985A)

Engine Connecting Rod Bearing

from

$9.29
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
See More

National – Shaft Repair Sleeve (Part No.99363)

Shaft Repair Sleeve

from

$63.99
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:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

Most Popular Oversized Main Bearings for 2004 Mercury Grand Marquis

Enhance your 2004 Mercury Grand Marquis with one of the 5 Oversized Main Bearings we have in stock, starting at just $74.99.

Sealed Power – Main Bearing Set (Part No.148M)

Main Bearing Set

from

$118.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • H14 Super Duty alloy material
  • Best bronze alloy material
  • Does not have flash tin plating
  • Extreme fatigue resistance & strength
  • Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust
  • Silicon particles help polish crankshaft journal (reduces wear during operation)
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7292MA .25MM)

Engine Crankshaft Main Bearing Set

from

$82.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7292MA .75MM)

Engine Crankshaft Main Bearing Set

from

$78.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7292MA)

Engine Crankshaft Main Bearing Set

from

$78.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.7292MA .50MM)

Engine Crankshaft Main Bearing Set

from

$74.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Best-Selling 2004 Mercury Grand Marquis Standard Individual Rod Bearings

Upgrade your Grand Marquis with one of our 3 best-selling Standard Individual Rod Bearings, earning an average 5 stars rating across 1 reviews.

Sealed Power – Engine Connecting Rod Bearing (Part No.1985A .50MM)

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
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.1985A)

Engine Connecting Rod Bearing

from

$9.29
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
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.1985A .25MM)

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
See More

Top-Quality Standard Rod Bearing Sets for 2004 Mercury Grand Marquis

Choose a high-quality OEM or aftermarket Standard Rod Bearing Set for Mercury Grand Marquis and enjoy top-notch performance from $72.99.

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-1985A)

Engine Connecting Rod Bearing Set

from

$72.99
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:
  • 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
See More

Sealed Power – Connecting Rod Bearing Set (Part No.8-7250CH)

Connecting Rod Bearing Set

from

$150.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • Steel-backed Babbitt lining material
  • For use in automotive and high-performance applications
  • Babbitt designed to deform under extreme loads without damaging other engine parts
  • Meets unique demands of performance engines
  • Delivers dependable performance and superior service life
  • Application-specific design for perfect fit and correct operation
See More

Our Top Pick for a 2004 Mercury Grand Marquis Crankshaft Bolt

Invest in a durable Crankshaft Bolt for your 2004 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

Dorman – Harmonic Balancer Bolt (Part No.926-886)

Harmonic Balancer Bolt

from

$17.99
This engine harmonic balancer bolt 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 harmonic balancer bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt 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
See More

Top-Rated Crankshaft Seals for 2004 Mercury Grand Marquis

Make a smart move for your 2004 Mercury Grand Marquis with products all priced from $6.99 to $54.99.

Felpro – CRANKSHAFT FRONT SEAL SET (Part No.TCS 46114)

CRANKSHAFT FRONT SEAL SET

from

$15.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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
See More

Driveworks – Oil Seal (Part No.S-2692)

Oil Seal

from

$10.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

National – Engine Crankshaft Seal (Part No.3909)

Engine Crankshaft Seal

from

$29.99
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:
  • Design type: spring loaded; single-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

Felpro – Engine Crankshaft Seal Kit (Part No.BS 40620)

Engine Crankshaft Seal Kit

from

$30.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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
See More

National – Multi-Purpose Seal (Part No.710837)

Multi-Purpose Seal

from

$6.99
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:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
  • Excellent high temperature capabilities
  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi-Purpose Seal (Part No.5277)

Multi-Purpose Seal

from

$54.99
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:
  • Design type: springless; multi-lip
  • Temperature range: -100 Deg. F to 450 Deg. F; -73 Deg. C to 232 Deg.C
  • Excellent dry running capabilities
  • Low coefficient of friction
  • Delivers quality and reliable performance for every type of repair
See More

FAG US – Shaft Seal (Part No.SS3386)

Shaft Seal

from

$45.49
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

Product Features:
  • High-precision and High-quality components used in all KITs
  • Coverage of classic and new high-tech solutions for the best system coverage
See More

Victor Reinz – Engine Crankshaft Seal Kit (Part No.18-10114-01)

Engine Crankshaft Seal Kit

from

$16.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Top-Rated Engine Internal Brands For Your 2004 Mercury Grand Marquis

When it comes to finding the perfect Engine Internal for your 2004 Mercury Grand Marquis, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 7 trusted brands. We carry the most popular Engine Internal brands including FELPRO, Sealed Power, and National, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $8.49. Purchasing a Engine Internal from us here at Advance Auto Parts is a smart move for both you and your 2004 Mercury Grand Marquis, providing peace of mind with parts that meet or exceed OEM standards.

Popular FELPRO 2004 Mercury Grand Marquis Engine Internals

If you’re looking for a top-quality Engine Internal for your 2004 Mercury Grand Marquis, Advance Auto Parts has exactly what you need with our selection of FELPRO Engine Internals. We have 2 FELPRO Engine Internals in stock for this fitment, all known for their durability and precision fit. With prices starting at just $15.99 and an average cost of $23.49, you’ll find the perfect Engine Internal for your needs and budget. FELPRO Engine Internals for the 2004 Mercury Grand Marquis come highly rated, with over 22 customer reviews and an impressive average rating of 4.6 stars. Choosing a FELPRO Engine Internal from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
CRANKSHAFT FRONT SEAL SET
from $15.99
(4)
CRANKSHAFT FRONT SEAL SET
“Fit and function like OEM Ford”
Engine Crankshaft Seal Kit
from $30.99
(18)
Engine Crankshaft Seal Kit
“Great product.”

Top-Quality Sealed Power 2004 Mercury Grand Marquis Engine Internals

For those in search of a high-quality Engine Internal for their 2004 Mercury Grand Marquis, Advance Auto Parts offers a great selection of Sealed Power Engine Internals. With 2 Sealed Power Engine Internals in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Internals start at just $8.49, with an average price of $40.74, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.3 stars, Sealed Power Engine Internals provide both reliability and excellent performance. Choosing a Sealed Power Engine Internal from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Engine Connecting Rod Bearing Set
from $72.99
(1)
Engine Connecting Rod Bearing Set
“Replaced worn bearings on F150 5.4 engine due to an oil pickup clog. Was able to replace rod bearings without removing engine. Bearings fir perfectly ”
Engine Connecting Rod Bearing
from $8.49
(1)
Engine Connecting Rod Bearing
“worked great”

FAQs for 2004 Mercury Grand Marquis Engine Internals

What are the best-selling Engine Internals for 2004 Mercury Grand Marquis?

Out of 25 Engine Internals that fit 2004 Mercury Grand Marquis, the following parts are the top sellers:

What’s the price range for 2004 Mercury Grand Marquis Engine Internals?

The prices of Engine Internals for the 2004 Mercury Grand Marquis range from $6.99 up to $205.99 for the most premium parts.

What is the average price of an Engine Internal for a 2004 Mercury Grand Marquis?

The average price for Engine Internals for the 2004 Mercury Grand Marquis is $63.02. Keep in mind the variety of part types within our Engine Internal category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Internals for other Mercury Grand Marquis model years?

Yes, we carry Engine Internals for 35 model years of Mercury Grand Marquis between 1975 and 2011. The following model years are the most popular for Engine Internal purchases: 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2003, and 2002.

What are the cheapest Engine Internals for my 2004 Mercury Grand Marquis?

The cheapest 2004 Mercury Grand Marquis Engine Internals we carry are:

Does Advance Auto Parts sell Engine Internals for any other 2004 Mercury models?

Yes. We stock Engine Internals for 2 other popular 2004 Mercury models. Some of the most popular are 2004 Monterey Engine Internals, 2004 Marauder Engine Internals, and 2004 Mountaineer Engine Internals.

What are the top-rated Engine Internals that fit the 2004 Mercury Grand Marquis?

Based on 176 reviews by customers, our 2004 Mercury Grand Marquis Engine Internals have an average customer rating of 5 stars. These are the highest-rated categories of Engine Internals for the 2004 Mercury Grand Marquis and their top-rated products:

What types of Engine Internals do you sell for my 2004 Mercury Grand Marquis?

As of 11/2/25, these are some of the most in-demand types of Engine Internals for a 2004 Mercury Grand Marquis:

Can I get help with 2004 Mercury Grand Marquis Engine Internal orders?

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

What is your return policy for Mercury Grand Marquis Engine Internals?

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