Upgrade the utility and hauling stability of your truck with our complete selection of 2004.5-2005 GM 6.6L LLY Duramax towing and accessories. The LLY Duramax platform brought variable-geometry turbocharging to the Chevrolet Silverado and GMC Sierra HD platforms, creating a highly responsive engine configuration built for pulling heavy loads. Maximizing this high-torque potential requires robust load support and reliable hardware to pull large trailers, heavy equipment, or toy haulers safely and comfortably.
At Norcal Diesel Performance, we offer a rugged catalog of heavy-duty towing equipment built to match your truck's high-output platform. Level out your ride height and eliminate dangerous rear-end sag with high-capacity air helper springs and onboard air management kits. We also supply custom-fit trailer receiver hitches, advanced electronic brake controllers, and extendable towing mirrors designed to provide an uncompromised view around wide trailers. From adjustable drop hitches and heavy-duty tie-downs to clean-fit wiring adapters, we ensure your vehicle is ready for any job.
Equip your LLY workhorse to conquer steep highway grades and rugged worksites with total confidence. Browse our durable collection of truck accessories online for quick shipping, or pull into our retail storefront in Orangevale, CA for expert product guidance and professional installation support!
Spartan Torsion Flex King Pin 11 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 3.5K TW 25K Towing & GH-097 Pin Gen Y HitchNew810006123135
Spartan Torsion Flex King Pin 11 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 3.5K TW 25K Towing & GH-097 Pin Gen Y Hitch
Spartan Torsion Flex Manual Latch 5 Inch Offset 4 Inch Square Tube Gooseneck 3 Inch Coupler Standard Height 7K TW 40K Towing Gen Y HitchNew810006121698
Spartan Torsion Flex Manual Latch 5 Inch Offset 4 Inch Square Tube Gooseneck 3 Inch Coupler Standard Height 7K TW 40K Towing Gen Y Hitch
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 4.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006122121
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 4.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Square Tube GN 2 5/16 Inch Coupler 4.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006122138
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Square Tube GN 2 5/16 Inch Coupler 4.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Square Tube Gooseneck 2 5/16 Inch Coupler Standard Height 6.5K TW 30K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006121681
Spartan Torsion Flex Snap Latch 2.5 Inch Offset 4 Inch Square Tube Gooseneck 2 5/16 Inch Coupler Standard Height 6.5K TW 30K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 3.5-6.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006121650
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 3.5-6.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 8.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006124736
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Round Tube Gooseneck 2 5/16 Inch Coupler Standard Height 8.5K TW 25K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Square Tube Gooseneck 2 5/16 Inch Coupler Standard Height 8.5K TW 30K Towing Includes GH-098 Pin & Pull Rod Gen Y HitchNew810006125801
Spartan Torsion Flex SnapLatch 2.5 Inch Offset 4 Inch Square Tube Gooseneck 2 5/16 Inch Coupler Standard Height 8.5K TW 30K Towing Includes GH-098 Pin & Pull Rod Gen Y Hitch
The Boss Torsion Flex 2 Inch Shank 12.5 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y HitchNew810006121094
The Boss Torsion Flex 2 Inch Shank 12.5 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y Hitch
The Boss Torsion Flex 2 Inch Shank 15 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y HitchNew810006121100
The Boss Torsion Flex 2 Inch Shank 15 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y Hitch
The Boss Torsion Flex 2 Inch Shank 17.5 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y HitchNew810006121117
The Boss Torsion Flex 2 Inch Shank 17.5 Inch Drop 1.7K TW 16K Hitch & GH-051 Dual-Ball & GH-032 Pintle Lock & GH-0100 Stab Kit Gen Y Hitch
The Boss Torsion Flex 2.5 Inch Receiver 15 Inch Drop 2.4K TW 21K Hitch & GH-061 Dual-Ball & GH-062 Pintle Lock & GH-0101 Stab Kit Gen Y HitchNew810006121155
The Boss Torsion Flex 2.5 Inch Receiver 15 Inch Drop 2.4K TW 21K Hitch & GH-061 Dual-Ball & GH-062 Pintle Lock & GH-0101 Stab Kit Gen Y Hitch
