BD Diesel Differential Cover Cast Aluminum — Fits 03-15 Dodge 2500/3500 & 01-13 Chevy Duramax

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Cooling with BD Diesel Differential Covers

Upgrade your heavy-duty truck's drivetrain with the BD Diesel Differential Cover. Designed specifically for 2003-2015 Dodge 2500/3500 and 2001-2013 Chevy Duramax 2500/3500 models, this cover is engineered to maximize gear life and performance. Unlike bulky stock covers that can trap heat, the BD design features specialized internal and external fins that actively deflect oil back onto the ring and pinion gears, significantly reducing operating temperatures.

Advanced Engineering for Heavy-Duty Use

  • Material: High-strength cast aluminum for superior heat dissipation.
  • Cooling Fins: Internal and external design for optimal thermal management.
  • Serviceability: Separate fill and drain ports for easy maintenance.
  • Durability: Rugged construction prevents flexing under high-torque loads.
  • Fitment: Precision fit for Dodge and Chevy heavy-duty axles.

Excessive heat is the primary cause of differential failure in towing and performance applications. By increasing oil capacity and improving fluid circulation, this cover ensures your gears remain properly lubricated even under extreme stress. The sleek, low-profile design ensures clearance for various suspension setups while providing a professional, custom look to your undercarriage. Each unit includes all necessary hardware for a straightforward installation, making it the perfect upgrade for any truck owner looking to improve reliability and performance. Experience the difference in engineering with this premium component available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016 Chevrolet Express 2500 Base
2001-2002 Chevrolet Express 3500 Base
2001-2002 Chevrolet Express 3500 LS
2006-2014 Chevrolet Express 3500 Base
2011-2012 Chevrolet Express 3500 LT
2011-2012 Chevrolet Express 3500 LS
2016 Chevrolet Express 3500 LT
2016 Chevrolet Express 3500 Base
2016 Chevrolet Express 3500 LS
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2018 Chevrolet Silverado 2500 HD LT
2003-2018 Chevrolet Silverado 2500 HD WT
2007-2018 Chevrolet Silverado 2500 HD LTZ
2015-2018 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2018 Chevrolet Silverado 3500 HD WT
2007-2018 Chevrolet Silverado 3500 HD LT
2007-2018 Chevrolet Silverado 3500 HD LTZ
2015-2018 Chevrolet Silverado 3500 HD High Country
2003 Dodge Ram 2500 Laramie
2003-2010 Dodge Ram 2500 SLT
2003-2010 Dodge Ram 2500 ST
2005-2010 Dodge Ram 2500 Laramie
2006-2007 Dodge Ram 2500 Sport
2006-2007 Dodge Ram 2500 TRX4
2006-2010 Dodge Ram 2500 Power Wagon
2008-2010 Dodge Ram 2500 SXT
2010 Dodge Ram 2500 TRX
2003-2010 Dodge Ram 3500 Laramie
2003-2010 Dodge Ram 3500 SLT
2003-2010 Dodge Ram 3500 ST
2006-2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 TRX4
2008-2009 Dodge Ram 3500 SXT
2008-2010 Dodge Ram 4500 Laramie
2008-2010 Dodge Ram 4500 SLT
2008-2010 Dodge Ram 4500 ST
2008-2010 Dodge Ram 5500 Laramie
2008-2010 Dodge Ram 5500 SLT
2008-2010 Dodge Ram 5500 ST
2016 GMC Savana 2500 Base
2016 GMC Savana 3500 Base
2016 GMC Savana 3500 LS
2016 GMC Savana 3500 LT
2001-2002 GMC Sierra 2500 HD SL
2001-2018 GMC Sierra 2500 HD SLE
2001-2018 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT

…and 51 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Cooling with BD Diesel Differential Covers

Upgrade your heavy-duty truck's drivetrain with the BD Diesel Differential Cover. Designed specifically for 2003-2015 Dodge 2500/3500 and 2001-2013 Chevy Duramax 2500/3500 models, this cover is engineered to maximize gear life and performance. Unlike bulky stock covers that can trap heat, the BD design features specialized internal and external fins that actively deflect oil back onto the ring and pinion gears, significantly reducing operating temperatures.

Advanced Engineering for Heavy-Duty Use

  • Material: High-strength cast aluminum for superior heat dissipation.
  • Cooling Fins: Internal and external design for optimal thermal management.
  • Serviceability: Separate fill and drain ports for easy maintenance.
  • Durability: Rugged construction prevents flexing under high-torque loads.
  • Fitment: Precision fit for Dodge and Chevy heavy-duty axles.

Excessive heat is the primary cause of differential failure in towing and performance applications. By increasing oil capacity and improving fluid circulation, this cover ensures your gears remain properly lubricated even under extreme stress. The sleek, low-profile design ensures clearance for various suspension setups while providing a professional, custom look to your undercarriage. Each unit includes all necessary hardware for a straightforward installation, making it the perfect upgrade for any truck owner looking to improve reliability and performance. Experience the difference in engineering with this premium component available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016 Chevrolet Express 2500 Base
2001-2002 Chevrolet Express 3500 Base
2001-2002 Chevrolet Express 3500 LS
2006-2014 Chevrolet Express 3500 Base
2011-2012 Chevrolet Express 3500 LT
2011-2012 Chevrolet Express 3500 LS
2016 Chevrolet Express 3500 LT
2016 Chevrolet Express 3500 Base
2016 Chevrolet Express 3500 LS
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2018 Chevrolet Silverado 2500 HD LT
2003-2018 Chevrolet Silverado 2500 HD WT
2007-2018 Chevrolet Silverado 2500 HD LTZ
2015-2018 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2018 Chevrolet Silverado 3500 HD WT
2007-2018 Chevrolet Silverado 3500 HD LT
2007-2018 Chevrolet Silverado 3500 HD LTZ
2015-2018 Chevrolet Silverado 3500 HD High Country
2003 Dodge Ram 2500 Laramie
2003-2010 Dodge Ram 2500 SLT
2003-2010 Dodge Ram 2500 ST
2005-2010 Dodge Ram 2500 Laramie
2006-2007 Dodge Ram 2500 Sport
2006-2007 Dodge Ram 2500 TRX4
2006-2010 Dodge Ram 2500 Power Wagon
2008-2010 Dodge Ram 2500 SXT
2010 Dodge Ram 2500 TRX
2003-2010 Dodge Ram 3500 Laramie
2003-2010 Dodge Ram 3500 SLT
2003-2010 Dodge Ram 3500 ST
2006-2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 TRX4
2008-2009 Dodge Ram 3500 SXT
2008-2010 Dodge Ram 4500 Laramie
2008-2010 Dodge Ram 4500 SLT
2008-2010 Dodge Ram 4500 ST
2008-2010 Dodge Ram 5500 Laramie
2008-2010 Dodge Ram 5500 SLT
2008-2010 Dodge Ram 5500 ST
2016 GMC Savana 2500 Base
2016 GMC Savana 3500 Base
2016 GMC Savana 3500 LS
2016 GMC Savana 3500 LT
2001-2002 GMC Sierra 2500 HD SL
2001-2018 GMC Sierra 2500 HD SLE
2001-2018 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT

…and 51 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About BD Diesel

BD Diesel engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full BD Diesel lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superior Cooling with BD Diesel Differential Covers

Upgrade your heavy-duty truck's drivetrain with the BD Diesel Differential Cover. Designed specifically for 2003-2015 Dodge 2500/3500 and 2001-2013 Chevy Duramax 2500/3500 models, this cover is engineered to maximize gear life and performance. Unlike bulky stock covers that can trap heat, the BD design features specialized internal and external fins that actively deflect oil back onto the ring and pinion gears, significantly reducing operating temperatures.

Advanced Engineering for Heavy-Duty Use

  • Material: High-strength cast aluminum for superior heat dissipation.
  • Cooling Fins: Internal and external design for optimal thermal management.
  • Serviceability: Separate fill and drain ports for easy maintenance.
  • Durability: Rugged construction prevents flexing under high-torque loads.
  • Fitment: Precision fit for Dodge and Chevy heavy-duty axles.

Excessive heat is the primary cause of differential failure in towing and performance applications. By increasing oil capacity and improving fluid circulation, this cover ensures your gears remain properly lubricated even under extreme stress. The sleek, low-profile design ensures clearance for various suspension setups while providing a professional, custom look to your undercarriage. Each unit includes all necessary hardware for a straightforward installation, making it the perfect upgrade for any truck owner looking to improve reliability and performance. Experience the difference in engineering with this premium component available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016 Chevrolet Express 2500 Base
2001-2002 Chevrolet Express 3500 Base
2001-2002 Chevrolet Express 3500 LS
2006-2014 Chevrolet Express 3500 Base
2011-2012 Chevrolet Express 3500 LT
2011-2012 Chevrolet Express 3500 LS
2016 Chevrolet Express 3500 LT
2016 Chevrolet Express 3500 Base
2016 Chevrolet Express 3500 LS
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2018 Chevrolet Silverado 2500 HD LT
2003-2018 Chevrolet Silverado 2500 HD WT
2007-2018 Chevrolet Silverado 2500 HD LTZ
2015-2018 Chevrolet Silverado 2500 HD High Country
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2006 Chevrolet Silverado 3500 LS
2001-2006 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007-2018 Chevrolet Silverado 3500 HD WT
2007-2018 Chevrolet Silverado 3500 HD LT
2007-2018 Chevrolet Silverado 3500 HD LTZ
2015-2018 Chevrolet Silverado 3500 HD High Country
2003 Dodge Ram 2500 Laramie
2003-2010 Dodge Ram 2500 SLT
2003-2010 Dodge Ram 2500 ST
2005-2010 Dodge Ram 2500 Laramie
2006-2007 Dodge Ram 2500 Sport
2006-2007 Dodge Ram 2500 TRX4
2006-2010 Dodge Ram 2500 Power Wagon
2008-2010 Dodge Ram 2500 SXT
2010 Dodge Ram 2500 TRX
2003-2010 Dodge Ram 3500 Laramie
2003-2010 Dodge Ram 3500 SLT
2003-2010 Dodge Ram 3500 ST
2006-2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 TRX4
2008-2009 Dodge Ram 3500 SXT
2008-2010 Dodge Ram 4500 Laramie
2008-2010 Dodge Ram 4500 SLT
2008-2010 Dodge Ram 4500 ST
2008-2010 Dodge Ram 5500 Laramie
2008-2010 Dodge Ram 5500 SLT
2008-2010 Dodge Ram 5500 ST
2016 GMC Savana 2500 Base
2016 GMC Savana 3500 Base
2016 GMC Savana 3500 LS
2016 GMC Savana 3500 LT
2001-2002 GMC Sierra 2500 HD SL
2001-2018 GMC Sierra 2500 HD SLE
2001-2018 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2014 GMC Sierra 2500 HD WT

…and 51 additional fitments. Contact us to confirm yours.

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