XDP
XDP Performance Valve Springs & Retainer Set XD386
MPN: XDP-XD386
The XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature a conical design for better valve control th…
$675.95
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Warranty
Warranty Information Pending
Warranty information has not yet been provided for this product. Contact FullSpecDiesel for help locating the applicable manufacturer or supplier warranty.
View complete warrantyThe XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability. Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 2 year / unlimited mileage warranty.Features: 125 Lb. Seat PressureConical Spring Design Performance Valve Spring KitEssential For Elevated Boost Levels Complete Set (Springs, Locks & Retainers)Specifications:Installed Height: 1.610”Installed Pressure: 125lbs 210lbs @ 1.110” Coil Bind: 1.050”WarrantyAll product warranties if any, implied have been done so at the discretion of the manufacturer. If you need warranty assistance on any product you've purchased, please contact the manufacturer directly.Products manufactured by XDP carry a 2-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to two (2) years from the date of sale and limited solely to the parts contained within the product's kit. All products that are in question of Warranty must be returned shipping prepaid to XDP and must be accompanied by a dated proof of purchase receipt. Warranty is limited to the original purchaser.Under no circumstances shall the Xtreme Diesel Performance, LLC. be liable for any labor charged or travel time incurred in diagnosis for defects, removal, or reinstallation of this product, or any other contingent expenses.Vehicle Fitment YEAR MAKE MODEL FOR ENGINE SERIES 2001 Chevrolet Silverado 2500 HD 6.6 2002 Chevrolet Silverado 2500 HD 6.6 2003 Chevrolet Silverado 2500 HD 6.6 2004 Chevrolet Silverado 2500 HD 6.6 2005 Chevrolet Silverado 2500 HD 6.6 2006 Chevrolet Silverado 2500 HD 6.6 2007 Chevrolet Silverado 2500 HD 6.6 2008 Chevrolet Silverado 2500 HD 6.6 2009 Chevrolet Silverado 2500 HD 6.6 2010 Chevrolet Silverado 2500 HD 6.6 2011 Chevrolet Silverado 2500 HD 6.6 2012 Chevrolet Silverado 2500 HD 6.6 2013 Chevrolet Silverado 2500 HD 6.6 2014 Chevrolet Silverado 2500 HD 6.6 2015 Chevrolet Silverado 2500 HD 6.6 2016 Chevrolet Silverado 2500 HD 6.6 2007 Chevrolet Silverado 2500 HD Classic 6.6 2001 Chevrolet Silverado 3500 6.6 2002 Chevrolet Silverado 3500 6.6 2003 Chevrolet Silverado 3500 6.6 2004 Chevrolet Silverado 3500 6.6 2005 Chevrolet Silverado 3500 6.6 2006 Chevrolet Silverado 3500 6.6 2007 Chevrolet Silverado 3500 Classic 6.6 2007 Chevrolet Silverado 3500 HD 6.6 2008 Chevrolet Silverado 3500 HD 6.6 2009 Chevrolet Silverado 3500 HD 6.6 2010 Chevrolet Silverado 3500 HD 6.6 2011 Chevrolet Silverado 3500 HD 6.6 2012 Chevrolet Silverado 3500 HD 6.6 2013 Chevrolet Silverado 3500 HD 6.6 2014 Chevrolet Silverado 3500 HD 6.6 2015 Chevrolet Silverado 3500 HD 6.6 2016 Chevrolet Silverado 3500 HD 6.6 2001 GMC Sierra 2500 HD 6.6 2002 GMC Sierra 2500 HD 6.6 2003 GMC Sierra 2500 HD 6.6 2004 GMC Sierra 2500 HD 6.6 2005 GMC Sierra 2500 HD 6.6 2006 GMC Sierra 2500 HD 6.6 2007 GMC Sierra 2500 HD 6.6 2008 GMC Sierra 2500 HD 6.6 2009 GMC Sierra 2500 HD 6.6 2010 GMC Sierra 2500 HD 6.6 2011 GMC Sierra 2500 HD 6.6 2012 GMC Sierra 2500 HD 6.6 2013 GMC Sierra 2500 HD 6.6 2014 GMC Sierra 2500 HD 6.6 2015 GMC Sierra 2500 HD 6.6 2016 GMC Sierra 2500 HD 6.6 2007 GMC Sierra 2500 HD Classic 6.6 2001 GMC Sierra 3500 6.6 2002 GMC Sierra 3500 6.6 2003 GMC Sierra 3500 6.6 2004 GMC Sierra 3500 6.6 2005 GMC Sierra 3500 6.6 2006 GMC Sierra 3500 6.6 2007 GMC Sierra 3500 Classic 6.6 2007 GMC Sierra 3500 HD 6.6 2008 GMC Sierra 3500 HD 6.6 2009 GMC Sierra 3500 HD 6.6 2010 GMC Sierra 3500 HD 6.6 2011 GMC Sierra 3500 HD 6.6 2012 GMC Sierra 3500 HD 6.6 2013 GMC Sierra 3500 HD 6.6 2014 GMC Sierra 3500 HD 6.6 2015 GMC Sierra 3500 HD 6.6 2016 GMC Sierra 3500 HD 6.6
The XDP Performance Valve Springs & Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability. Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 2 year / unlimited mileage warranty.Features: 125 Lb. Seat PressureConical Spring Design Performance Valve Spring KitEssential For Elevated Boost Levels Complete Set (Springs, Locks & Retainers)Specifications:Installed Height: 1.610”Installed Pressure: 125lbs 210lbs @ 1.110” Coil Bind: 1.050”WarrantyAll product warranties if any, implied have been done so at the discretion of the manufacturer. If you need warranty assistance on any product you've purchased, please contact the manufacturer directly.Products manufactured by XDP carry a 2-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to two (2) years from the date of sale and limited solely to the parts contained within the product's kit. All products that are in question of Warranty must be returned shipping prepaid to XDP and must be accompanied by a dated proof of purchase receipt. Warranty is limited to the original purchaser.Under no circumstances shall the Xtreme Diesel Performance, LLC. be liable for any labor charged or travel time incurred in diagnosis for defects, removal, or reinstallation of this product, or any other contingent expenses.Vehicle Fitment YEAR MAKE MODEL FOR ENGINE SERIES 2001 Chevrolet Silverado 2500 HD 6.6 2002 Chevrolet Silverado 2500 HD 6.6 2003 Chevrolet Silverado 2500 HD 6.6 2004 Chevrolet Silverado 2500 HD 6.6 2005 Chevrolet Silverado 2500 HD 6.6 2006 Chevrolet Silverado 2500 HD 6.6 2007 Chevrolet Silverado 2500 HD 6.6 2008 Chevrolet Silverado 2500 HD 6.6 2009 Chevrolet Silverado 2500 HD 6.6 2010 Chevrolet Silverado 2500 HD 6.6 2011 Chevrolet Silverado 2500 HD 6.6 2012 Chevrolet Silverado 2500 HD 6.6 2013 Chevrolet Silverado 2500 HD 6.6 2014 Chevrolet Silverado 2500 HD 6.6 2015 Chevrolet Silverado 2500 HD 6.6 2016 Chevrolet Silverado 2500 HD 6.6 2007 Chevrolet Silverado 2500 HD Classic 6.6 2001 Chevrolet Silverado 3500 6.6 2002 Chevrolet Silverado 3500 6.6 2003 Chevrolet Silverado 3500 6.6 2004 Chevrolet Silverado 3500 6.6 2005 Chevrolet Silverado 3500 6.6 2006 Chevrolet Silverado 3500 6.6 2007 Chevrolet Silverado 3500 Classic 6.6 2007 Chevrolet Silverado 3500 HD 6.6 2008 Chevrolet Silverado 3500 HD 6.6 2009 Chevrolet Silverado 3500 HD 6.6 2010 Chevrolet Silverado 3500 HD 6.6 2011 Chevrolet Silverado 3500 HD 6.6 2012 Chevrolet Silverado 3500 HD 6.6 2013 Chevrolet Silverado 3500 HD 6.6 2014 Chevrolet Silverado 3500 HD 6.6 2015 Chevrolet Silverado 3500 HD 6.6 2016 Chevrolet Silverado 3500 HD 6.6 2001 GMC Sierra 2500 HD 6.6 2002 GMC Sierra 2500 HD 6.6 2003 GMC Sierra 2500 HD 6.6 2004 GMC Sierra 2500 HD 6.6 2005 GMC Sierra 2500 HD 6.6 2006 GMC Sierra 2500 HD 6.6 2007 GMC Sierra 2500 HD 6.6 2008 GMC Sierra 2500 HD 6.6 2009 GMC Sierra 2500 HD 6.6 2010 GMC Sierra 2500 HD 6.6 2011 GMC Sierra 2500 HD 6.6 2012 GMC Sierra 2500 HD 6.6 2013 GMC Sierra 2500 HD 6.6 2014 GMC Sierra 2500 HD 6.6 2015 GMC Sierra 2500 HD 6.6 2016 GMC Sierra 2500 HD 6.6 2007 GMC Sierra 2500 HD Classic 6.6 2001 GMC Sierra 3500 6.6 2002 GMC Sierra 3500 6.6 2003 GMC Sierra 3500 6.6 2004 GMC Sierra 3500 6.6 2005 GMC Sierra 3500 6.6 2006 GMC Sierra 3500 6.6 2007 GMC Sierra 3500 Classic 6.6 2007 GMC Sierra 3500 HD 6.6 2008 GMC Sierra 3500 HD 6.6 2009 GMC Sierra 3500 HD 6.6 2010 GMC Sierra 3500 HD 6.6 2011 GMC Sierra 3500 HD 6.6 2012 GMC Sierra 3500 HD 6.6 2013 GMC Sierra 3500 HD 6.6 2014 GMC Sierra 3500 HD 6.6 2015 GMC Sierra 3500 HD 6.6 2016 GMC Sierra 3500 HD 6.6
Product conditions
Professional installation is recommended.
- Return eligibility
- Returnable within 30 days of confirmed delivery, in original condition, with an approved RMA
- Return window
- 30 days from confirmed delivery
- Restocking fee
- No restocking fee
- Return shipping
- Customer pays return shipping on voluntary returns
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Cancellation is only possible before the supplier order is submitted
- Warranty provider
- Warranty Information Pending
- Warranty duration
- Pending verification
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- XDP
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.