If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Included warranty:
For warranty coverage information, please see our
Warranty Policy.
Walker Products Engine Variable Valve Timing (VVT) Sprockets are precision-engineered OE Replacement components that restore factory timing control by adjusting camshaft phasing based on real-time engine conditions. These sprockets are a critical part of the VVT system, enabling enhanced fuel economy, increased power, and reduced emissions by dynamically altering valve timing during operation. Over time, VVT sprockets can wear, seize, or leak internally—leading to rough idle, decreased performance, fault codes (P0010–P0014, P0020–P0024), and poor drivability. Walker VVT Sprockets are manufactured to meet OE specifications for gear tooth alignment, oil passage flow, and phasing actuation. Each unit is built from hardened steel and includes durable internal vanes, seals, and locking mechanisms designed to withstand prolonged exposure to oil pressure, heat, and contamination. Designed for an exact OE fit, these sprockets install directly into the factory timing system without modification. Whether replacing a failed unit or performing a timing system overhaul, Walker VVT Sprockets ensure precise camshaft control, improved throttle response, and restored engine efficiency.
Characteristics include:
Durable Internal Mechanism: Built with hardened steel and high-quality seals to resist oil pressure, thermal cycling, and wear.
Restores Engine Performance: Helps resolve timing-related issues such as rough idle, loss of power, and fault codes caused by worn or failed sprockets.
Optimizes Valve Timing Control: Adjusts camshaft position for improved power, fuel economy, and emissions under varying engine loads.
OE Replacement Precision: Matches original specifications for gear tooth profile, phasing response, and oil control integration.
Exact OE Fit: Installs seamlessly with factory timing components—no modification or adaptation required.
Some of the interchangeable part numbers are:
917-262 | VVT516 | 7V-1003P | 12580314 | 35-1317
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Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
2007
Buick
Rainier
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2007
Chevrolet
Trailblazer
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2007
GMC
Envoy
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2007
Isuzu
Ascender
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2007
Saab
9-7x
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
Buick
Rainier
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
Chevrolet
Trailblazer
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
Chevrolet
Trailblazer EXT
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
GMC
Envoy
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
GMC
Envoy XL
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
Isuzu
Ascender
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
2006
Saab
9-7x
4.2L
Inline engine
6 cylinders
3.66" bore
4.00" stroke
See what other customers say:
Customer Reviews
Overall rating: 4.8 / 5 from 670 reviews.
Just received my front brake they look good quality.
La livraison se fait en un temps record, malheureusement il y a eu un erreur de pièce, par contre un service très professionnel, facile d'accès et dans ma langue natale..... Le retour est accepté sans frais. Tout les professionnels dans le domaines de la mécanique savent que des erreurs survient aléatoirement au niveaux pièces un jour ou l'autre, pas très agréable mais la ou ce joue la qualité du service est le service après vente et je peux confirmé la compétence de l'équipe Parts Pionner... Merci à l'équipe
Toujours en attente du ticket de retour mais j'ai confiance dans leurs bref délais...
LB Mécanique générale vous remercie et aux plaisirs de refaire affaire ensemble....!
This was my first dealing here. Easy to browse the site,the ordering process was quick and straightforward and shipping was fast and flawless. 10 out of 10.
Parts were well packaged, came with all hardware needed for clips, anti rattle clips, as well as mounting hardware. I drove the car to have the car relearn piston positioning, and these are much more grippy than factory honda/acura pads and rotors, so I am really happy with them. I am surprised it only took 3 days for them to arrive after ordering them from Calgary to sw ontario. I have already recommended part pioneer and this brand of pads and rotors to my friends.
Parts came really fast and of good quality as I’ve been a licensed mechanic for over 25 years departure just as good or better than buying in your local parts stores