2004 Jeep Grand Cherokee Engine Parts

Product Features:

• PROPRIETARY COATING – Exclusive coating helps withstand rougher sealing surface finishes up to 80 Ra
• SUPERIOR SEAL – Precise embossed sealing beads at all vital areas to eliminate leak paths
• MULTI-LAYERED STEEL CONSTRUCTION – Multiple layers of stainless steel maintain sealing stress and accommodate head lift
• UNIQUE COMBUSTION SEAL – Accommodates high cylinder pressures and head movement encountered with engines
• DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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.

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

Crown Automotive offers the largest line of replacement parts for Jeep(R), as well as a growing line of parts for Chrysler and Dodge. Our applications comes with Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.

Product Features:

• Manufactured From High Quality Material
• Engineered To The Specifications
• Meets The Quality Standards
• Designed For Performance And Durability
• Easy To Install

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. Meet or exceed OEM performance requirements. Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience.

Product Features:

• A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design, tensioners can use spring tension or hydraulic pressure to properly tension the chain
• CAD designed and manufactured using premium materials
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Meet or exceed OEM performance requirements
• Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience

Crown Automotive offers the largest line of replacement parts for Jeep (R), as well as a growing line of parts for Chrysler and Dodge vehicles. Our applications features Axle, Body, Brake, Clutch, Cooling, Electrical, Engine, Fuel, Lamps, Mirrors, Steering, Suspension, Transmission and Wiper.

Product Features:

• Long-Lasting, Durable Crown Automotive Products
• Hazardous Free Material
• Crown Automotive Has Consistently Maintained Its Commitment To Offering Only Quality Parts
• Offers OE Fit And Function

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
• Utilizing high grade materials to ensure peak conductivity and perfect connections
• Decades of industry leading research and development focused on meeting the technician’s needs
• With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues

A timing chain guide serves as a track or guide, for the timing chain, connecting the crankshaft and camshaft. Designed to meet or exceed OEM performance requirements, Timing Guides, which are available in kits or as a stand-alone product, utilize the latest in design and material technology, ensuring quiet and maintenance-free experience

Product Features:

• Extensively tested and measured for function, fitment, and durability to ensure optimal performance
• CAD designed and manufactured using premium materials
• 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
• Refer to our online catalog for detailed application-specific information

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

• Metal
• OE Style
• Direct Fit

PowerBond by DAYCO Race Performance Balancers are designed with a unique combination of material and castings providing the maximum strength and durability of bonded dampening rubber. Each balancer is dynamically balanced for a smooth operation. Modifying the balancer diameter can alter the performance of the accessories and engine rev speeds that can increase the vehicle’s horsepower output. These modifications can also help reduce power loss caused by front drive accessories and prevent over-revving alternators. Note: This modified balancer changes the geometry of the original belt drive. Dayco recommends this balancer to be serviced by a professional installer.

Product Features:

• Designed especially for high revving and high horsepower street and race applications
• Easy to read computer etched timing marks
• CNC machined AISI 1045 forged steel hub bonded to an equally strong steel inertia ring
• Steel inertia ring protects against forward and backward movement

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

• 8 Reqd For 4 Cylinder/12 Reqd For 6 Cylinder/16 Reqd For V8
• OE Style
• Direct Fit

A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments.

Product Features:

• Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
• Manufactured in an anti-static environment to ensure reliability and stability.
• Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
• Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.

Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:

• Delphi products are manufactured in a Delphi ISO certified facility
• Designed digital output for maximum signal to noise ratio
• All parts used in the manufacture process are Delphi validated
• Not impacted by temperature changes and provide robust, long-lasting sensor protection

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

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 technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.

MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

• All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
• MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
• Head gasket set (HS) contains all the gaskets and seals required to remove and replace a cylinder head(s) on an engine.
• The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

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

Each block is magnafluxed for cracks and checked for any visible damage to the block or threaded holes before being repainted. Five CNC machining centers are programmed to precise specifications that meet or exceed those established by the OEM for each engine block. After the engine block is bored, decked, and chamfered, each cylinder is honed with the specified OEM cross-hatch pattern. All gauging of all cylinder bores for diameter and roundness after final honing operation. Quality audits are performed to ensure that the cylinder meets specifications. All new pistons, rings and bearings are installed in every engine. One block per engine family is laid out and checked for all critical and high impact characteristics as defined in our control plans. These measurements include surface finishes, surface flatness and cylindricity in the cylinder bores. Every head is resurfaced and completely inspected for any visible damage or cracks to the casting or threaded holes. Valve seats are machined, inspected and replaced if necessary. The cam bore is air gauge checked on overhead cam engines and machined if required. All new valves, seals and lifters are used in every head. All plugs and fittings are replaced with new. All head and valve assemblies are quantified for leakage. Each connecting rod is measured against OEM specifications. The piston pin bore and bearing bore are measured with air gauges for proper dimensions. New torque to yield rod bolts and nuts are installed. Crankshafts are machined on a fully automated Ju crank CNC crank grinder. All oil galley holes are chamfered and brushed after machining. Each crank is inspected for cracks, bow and all applicable run-out specs for rod and main journals. Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure and any unusual noises. All engine assemblies quantified for oil gallery, gasket, and casting leakage in the oil passageways

Product Features:

Product Features:
• REMANUFACTURING and QUALITY CHECKS – ENGINE BLOCKS: Each block is magnafluxed for cracks and checked for any visible damage to the block or threaded holes before being repainted to the original color.
• CYLINDER HEADS: Every head is resurfaced and completely inspected for any visible damage or cracks to the casting or threaded holes. Any heads that have cracks in the combustion chamber are immediately scrapped, no weld repairs.
• CONNECTING RODS: Each connecting rod is measured against OEM specifications for bend, twist, and center-to-center length before use. The piston pin bore and bearing bore are measured with air gauges for proper dimensions.
• CRANKSHAFTS: Crankshafts are machined on a fully automated CNC crank grinder. This enables consistency and critical tolerances for each journal.
• DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly.
• Product might not be available in all states due to local laws.

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

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

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:

• DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
• ENGINEERED TO PERFORM – Proprietary cork-rubber formulation
• SUPERIOR SEAL – Highly conformable to accommodate for the imperfect sealing surfaces
• EVERY PART FOR THE REPAIR – Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
• REAL WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road

High Performance 3/8″ Pitch Double Roller Replacement TRUE Roller Chain. 0.250″ Roller Diameter. Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness. Pre-stressed to Increase Fatigue Life.

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

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

This engine camshaft synchronizer is designed to match the fit and function of the original synchronizer on specified applications, and is engineered for reliable performance and durability.

Product Features:

• Direct replacement – this engine camshaft synchronizer is designed to match the fit and function of the original synchronizer on specified applications
• Restores functionality – reliable replacement for an original part that has failed due to vibration or contamination
• 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

Crown Automotive continues to be the leader in quality replacement parts for Jeep(R) vehicles. Crown has the largest stock of replacement parts for Jeep(R) vehicles, including factory discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission And transfer case components. Crown Automotive also offers an exclusive line of component kits And accessory products.

Product Features:

• Manufactured From High Quality Material
• Engineered To The Specifications
• Meets The Quality Standards
• Designed For Performance And Durability
• Easy To Install

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

• Exhaust
• Sold Individually
• OE Style
• Direct Fit

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.

Melling oil pump repair kits are provided to supply the parts needed to rebuild a specific individual oil pump. Melling kits include all the required parts needed for a quality oil pump rebuild. Although Melling recommends the installation of a new oil pump, Melling oil pump repair kits are the preferred choice when a rebuilder has the desire to reuse the original oil pump casting or front timing cover.

Product Features:

• Includes components needed to rebuild a worn oil pump providing an alternative to purchasing a new oil pump
• Components are manufactured from high quality materials for durable wear
• Components are precision engineered for optimum fit and function
• Designed for long-life and worry-free performance