1998 Jeep Grand Cherokee Engine Timing Parts

The variable valve timing (VVT) system allows the engine control module (ECM) to regulate the intake and exhaust valve phase angle providing the most optimal engine volumetric efficiency under all engine operating condition to control tailpipe emissions and engine efficiency. Variable valve timing is an emission control device and although there are various methods of operation, the typical device is regulated by oil control valves, actuator solenoids and camshaft phasers.

Product Features:

• Precision-wound coated copper windings increase product durability and life cycle.
• Hard-coated and anodized spool valve to prevent corrosion and increase service life.
• Threaded mounting bolt, hardware, and/or gaskets where applicable for easy installation.
• Thermoplastic that is resistant to high temperatures, moisture, and chemicals.
• 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
• 100% end-of-line tested to ensure product reliability, every time.
• Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

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

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

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

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
• MAHLE gaskets is the leader in Domestic, Asian and European applications
• 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

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: -80 Deg. F to 350 Deg. F / -62 Deg. C to 176 Deg. C
• Good dry heat resistance
• Excellent low temperature capability
• Delivers quality and reliable performance for every type of repair

Billet Crank Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Sprockets Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout.

Product Features:

• The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
• 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 Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
• Refer to our online catalog for detailed application-specific information
• Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

TimingSet

Billet Crank Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Sprockets Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout.

Product Features:

• The complete kits, which meet or exceed OEM performance requirements, ensure a quiet and maintenance-free experience
• 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 Timing Kits may include camshaft sprockets, crankshaft sprockets, timing chains, tensioners, and guides
• Refer to our online catalog for detailed application-specific information
• Keep your engine’s valve train in perfect time with Cloyes, the world leader in timing drive systems.

A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product, our chains are pre-stressed and heat-treated for increased durability. Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment

Product Features:

• 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
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
• CAD designed and manufactured using premium materials
• Refer to our online catalog for detailed application-specific information
• Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

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. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment. CAD designed and manufactured using premium materials. Refer to our online catalog for detailed application-specific information.

Product Features:

• A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
• CAD designed and manufactured using premium materials
• Refer to our online catalog for detailed application-specific information
• Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

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. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment. CAD designed and manufactured using premium materials. Refer to our online catalog for detailed application-specific information.

Product Features:

• A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
• CAD designed and manufactured using premium materials
• Refer to our online catalog for detailed application-specific information
• Pre-Stressed And Heat-Treated For Increased Durability. Precision Cut Plates And Rollers With Smooth Finish. Precision Pitch Control For Proper Chain To Sprocket Tooth Fit.

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:

• 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
• Designed to meet or exceed OEM performance requirements
• Refer to our online catalog for detailed application-specific information

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:

• Crown Automotive Is The Premiere Manufacturer And Distributor Of Quality Replacement Parts
• Hazardous Free Material
• Offers OE Fit And Function
• 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. Designed to meet or exceed OEM performance requirements. Refer to our online catalog for detailed application-specific information.

Product Features:

• 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
• CAD designed and manufactured using premium materials
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• Designed to meet or exceed OEM performance requirements
• Refer to our online catalog for detailed application-specific information

ENG TIMNG CHAINGUIDE

With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:

• High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
• Precision machined sprockets for exact timing
• High-grade plastic guides use same material as OE for excellent wear resistance
• Contains: Crankshaft Sprocket, Timing Chain, Chain Tensioner, Chain Guide Does Not Contain Variable Valve Sprocket

ENGINE TIMING SET

With the backing of an industry-leading two year or 60,000 mile parts and labor warranty, each Dayco timing chain kit includes top-grade timing chains, precision machined crank sprockets and cam sprockets, tensioners, high-grade plastic guides, seals and VVT solenoids and cam phasers if the application calls for it.

Product Features:

• High quality chains prevent stretch for the life of the kit, addressing the no. 1 replacement issue
• Precision machined sprockets for exact timing
• High-grade plastic guides use same material as OE for excellent wear resistance
• Contains: Camshaft Sprocket (2), Idler Sprocket, Crankshaft Sprocket, Timing Chain (3), Chain Tensioner (3), Tensioner Guide (2), Chain Guide (2)

Meet or exceed OEM performance requirements, ensuring a quiet and maintenance-free experience. Utilizes the latest in design and technology to offer a complete chain kit solution. Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance. CAD designed and manufactured using premium materials. Refer to our online catalog for detailed application-specific information. SET INCLUDES: C393 Engine Timing Chain (1 EA), 9-5640 Engine Timing Chain Tensioner Guide (2 EA), 9-4223 Engine Timing Chain (2 EA), S965 Engine Timing Idler Sprocket (1 EA), 9-5426 Engine Timing Chain Guide (2 EA), 9-5423 Engine Timing Chain Tensioner (1 EA), 9-5424 Engine Timing Chain Tensioner (1 EA), 9-5425 Engine Timing Chain Tensioner (1 EA), S861 Engine Timing Crankshaft Sprocket (1 EA), S964T Engine Timing Camshaft Sprocket (1 EA), S966T Engine Timing Camshaft Sprocket (1 EA).

Product Features:

• Timing Chain Kits includes all components for a quick and efficient replacement
• Utilizes the latest in design and technology to offer a complete chain kit solution
• Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
• CAD designed and manufactured using premium materials
• Refer to our online catalog for detailed application-specific information

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

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

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

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 direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:

• Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
• Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
• Cost-effective solution – offers original equipment quality at a competitive price
• Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life

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

Product Features:

• Metal
• OE Style
• Direct Fit

This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:

• Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
• Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
• Cost-effective solution – offers original equipment quality at a competitive price
• Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life

The original equipment timing cover leaks when the plastic water outlet fatigues and cracks. This Dorman OE FIX timing cover is an upgraded design that features an aluminum water outlet for greater strength and durability.

Product Features:

• Improved design – this timing cover has been redesigned to reduce cracks and leaks in the water outlet
• Increases durability – timing cover is upgraded to aluminum to prevent future failure
• Quality tested – this part has undergone try-on testing to ensure a quality fit
• Quality engineering – designed in the United States and backed by decades of automotive aftermarket experience