Login
My Account
My Cart
The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Enter your truck info so we can recommend the right products for you.
Can't find it? Call us at 859-737-4966 for free advice.
Menu
Banners
Decals
Hats
Hoodies
Shirts
Tank Tops
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: WAGWCPC66115 Manufacturer Sku #: WCPC66115
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$393.95
2001 - 2016 Chevy Silverado 2500
2001 - 2016 Chevy Silverado 3500
2001 - 2016 GMC Sierra 2500
2001 - 2016 GMC Sierra 3500
Product Name: Wagler Upgraded Rocker Shaft - 2001-2016 GM Duramax 6.6L Manufacturer: Wagler Manufacturer Part #: D5912 Thoroughbred Diesel Part #: WAGD5912Fitment Notes: 2001-2016 GM Duramax 6.6L
The Wagler WCPC66115 Upgraded Rocker Shaft is engineered to replace the weak factory rocker shaft on 2001–2016 GM Duramax 6.6L engines. Precision-machined and built from high-strength materials, it’s designed to handle extreme cylinder pressures and RPM, making it an essential upgrade for performance builds or heavy-duty applications.
Wagler Upgraded Rocker Shaft Features: