2008 GMC Yukon XL 2500 Engine Timing Parts

ACDelco GM Original Equipment Engine Variable Valve Timing Solenoids regulate oil flow to the cam phasers that change the timing of the camshafts. The desired positions of the camshaft varies with engine speed and load and is calibrated for optimal engine performance, drive quality, and efficiency. They are GM-recommended replacements for your vehicle’s original components. These original equipment solenoids have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Coated to help protect against premature corrosion
• Designed to match OEM calibration to provide the performance you expect from GM
• 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

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 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

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

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: 9-4205 Engine Timing Chain (1 EA), 9-5490 Engine Timing Chain Tensioner (1 EA), S827 Engine Timing Crankshaft 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

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

ENGINE TIMING SET

ACDelco GM Original Equipment Camshaft Phasers adjust camshaft positioning while your vehicle’s engine is running, and are GM-recommended replacements for your vehicle’s original components. They help ensure the camshaft rotates in the correct timing with other valve train components to provide optimal engine performance, and work with your vehicle’s variable valve timing solenoid to help maximize drive quality and fuel economy. These original equipment phasers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Helps ensure optimal camshaft positioning
• Works alongside your vehicle’s VVT solenoid to help maximize drive quality and fuel economy
• 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

ACDelco GM Original Equipment Camshaft Phasers adjust camshaft positioning while your vehicle’s engine is running, and are GM-recommended replacements for your vehicle’s original components. They help ensure the camshaft rotates in the correct timing with other valve train components to provide optimal engine performance, and work with your vehicle’s variable valve timing solenoid to help maximize drive quality and fuel economy. These original equipment phasers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Helps ensure optimal camshaft positioning
• Works alongside your vehicle’s VVT solenoid to help maximize drive quality and fuel economy
• 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

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

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 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.

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. 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.
• High Performance, 3 Bolt, 1 Sensor Hub, Single Roller

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, 3 Bolt/1 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. TRUE Double Roller 0.250″ Roller Diameter Chain for Reduced 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.

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

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

Advance Auto Parts is proud to carry this part with the best fitment and performance requirements for this application, from the highest quality timing component vendor.

Product Features:

• The part is precision machined with high grade material for greater durability
• Maintains excellent chain or belt tension
• Meets or exceeds O.E.M. performance
• Part is quality inspected and tested

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

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

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