GMC Envoy Engine Timing Parts

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

ACDelco GM Original Equipment Engine Timing Chains synchronize the rotation of the crankshaft and camshaft(s) in an internal combustion engine. They help ensure that the engine’s valves open and close at the proper time during each cylinder’s intake and exhaust strokes, and are GM-recommended replacements for your vehicle’s original components. These original equipment timing chains have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Synchronizes the rotation of the crankshaft and the camshaft(s) to help ensure that the engine’s valves open and close at the proper time during each cylinder’s intake and exhaust strokes
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

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

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

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: -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

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

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.

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
• 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

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

This replacement engine variable valve timing (VVT) solenoid is precision-engineered to match the fit and function of the original VVT solenoid. Made of quality materials for a long service life, it has been tested for proper performance.

Product Features:

• Ideal replacement – this VVT solenoid is professionally engineered to match the function and performance of the stock part on specific vehicle applications
• Durable construction – this part is made from quality materials to ensure a long service life
• Excellent value – the VVT solenoid is built to perform like original equipment quality at a competitive price
• Vehicle tested – has undergone on-vehicle testing to ensure proper fit and performance

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

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

ACDelco GM Original Equipment Engine Timing Damper Kits remove unnecessary slack from the timing chain to help prevent chain rattle and excessive component wear, and are GM-recommended replacements for your vehicle’s original components. These original equipment engine timing damper kits contain components that will provide the same performance, durability, and service life you expect from General Motors.

Product Features:

• Removes excessive slack from the timing chain to help prevent chain rattle and excessive component wear
• Contains necessary parts to replace your vehicle’s engine timing damper
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

ENG TIMING CHAIN KIT

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, Crankshaft Sprocket, Timing Chain, Chain Damper

Billet Crankshaft Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Billet Steel Sprockets are Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter “Z” Chain for Reduced Friction. “Z” Chain Approximately 33% Overall Increased Strength Over the Standard High Performance Chain. “Z” Chain Featuring a Press Fit Center Link design that Increases Load Distribution with Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness and Pre-stressed to Increase Fatigue Life. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface 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.
• High Performance Timing Set, Race Billet, w/ “Z” Chain, 3-Keyway Crank, 1 Bolt/4 Sensor, .390″ Raised Cam

Billet Crankshaft Sprocket Has Nine Keyways for +/- 8 Degrees Adjustability. Both Billet Steel Sprockets are Heat Treated for Durability. TRUE Roller 0.250″ Roller Diameter “Z” Chain for Reduced Friction. “Z” Chain Approximately 33% Overall Increased Strength Over the Standard High Performance Chain. “Z” Chain Featuring a Press Fit Center Link design that Increases Load Distribution with Heat Treated and Processed Links to Maximize Ultimate Breaking Strength while Remaining Ductile for Toughness and Pre-stressed to Increase Fatigue Life. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Block Thrust Surface 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.
• High Performance Timing Set, Race Billet, w/ “Z” Chain, 9-Keyway Crank, 1 Bolt/4 Sensor, .390″ Raised Cam

HEX-A-JUST Allows for Infinite Valve Timing Adjustability of +/-6 Degrees to Tune for Maximum Engine Performance Output. One Piece Camshaft Sprocket Design Featuring a Billet Eccentric Camshaft Dowel Bushing. Both Billet Steel Sprockets are Heat Treated for Durability. Upgraded “Z” Chain TRUE Roller 0.250″ Roller Diameter Chain for Reduced Friction. Includes Captured Needle Camshaft Sprocket Thrust Bearing to Minimize Friction. 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.

The variable valve timing sprocket is key to ensuring an engine’s performance and clean running. Replace a worn factory VVT sprocket with this quality engineered sprocket to restore lost performance. Designed to install and perform like the original.

Product Features:

• Direct replacement – this VVT sprocket fits and performs like the original sprocket
• Durable construction – made from durable steel and precision machined for reliable performance
• 100% new – this variable valve timing sprocket is entirely new, not a remanufactured part
• Quality assured – vehicle-specific application has been validation tested to ensure quality

The variable valve timing sprocket is key to ensuring an engine’s performance and clean running. Replace a worn factory VVT sprocket with this quality engineered sprocket to restore lost performance. Designed to install and perform like the original.

Product Features:

• Direct replacement – this VVT sprocket fits and performs like the original sprocket
• Durable construction – made from durable steel and precision machined for reliable performance
• 100% new – this variable valve timing sprocket is entirely new, not a remanufactured part
• Quality assured – vehicle-specific application has been validation tested to ensure quality

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.

ACDelco GM Original Equipment Engine Timing Chain Tensioners help maintain a consistent amount of tension within the timing chain to help reduce the effect that slack has on the valve timing of the engine, and are GM-recommended replacements for your vehicle’s original components. These original equipment tensioners have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Provides consistent tension to help keep engine running in proper time
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

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

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