ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body Assembly ATS303-900-4308

ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body Assembly

Upgrade the hydraulic performance and shift control of your GM 6-speed automatic transmission with the ATS Diesel Performance Valve Body Assembly, part number ATS303-900-4308. Designed for 2006 and newer GM LCT1000 applications, this valve body assembly is engineered to support improved transmission operation and dependable performance in demanding automotive applications.
This ATS Diesel valve body assembly is designed for select Chevrolet Express and GMC Savana 2500 and 3500 vans, along with Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the compatible 6-speed LCT1000 transmission. Confirm your vehicle, model year, transmission configuration, and application requirements before installation to ensure proper fitment.
The assembly is intended for professional installation and may require transmission-specific service procedures, fluid management, and calibration checks. As a performance-oriented replacement component, the ATS Diesel ATS303-900-4308 helps provide a reliable foundation for maintaining transmission function under increased operating demands. This product is automotive-use equipment and is not CARB approved. California Proposition 65 warnings may apply.

Features:

• Application: Designed for 2006 and newer GM 6-speed LCT1000 automatic transmissions

• Product Type: Performance valve body assembly

• Brand: ATS Diesel

• Part Number: ATS303-900-4308

• Fitment: Select Chevrolet Express 2500 and 3500 and GMC Savana 2500 and 3500 models

• Additional Fitment: Select Chevrolet Silverado HD and GMC Sierra HD applications

• Installation: Professional transmission installation recommended

• Compliance: Not CARB approved; California Proposition 65 warning may apply

Fitments:
2006 Chevrolet Express 2500 Base
2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2006 Chevrolet Express 3500 Base
2006 GMC Savana 2500 Base
2006 GMC Savana 3500 Base
2007 Chevrolet Express 2500 Base
2007 Chevrolet Express 3500 Base
2007 GMC Savana 2500 Base
2007 GMC Savana 3500 Base
2011 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD WT
2011 GMC Sierra 2500 HD Denali
2011 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD WT
2011 GMC Sierra 3500 HD Denali
2011 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD WT
2012 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD WT
2012 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD WT
2012 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD WT
2013 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD WT
2013 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD WT
2013 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD WT
2014 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD WT
2014 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD WT
2014 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD WT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Core Charge: 800
Regular Stock: false
Units Per Sku: 1