Suspension and Components› Suspension Kits

ProComp

Pro Comp Bx 1 6In 11-13 Gm2500 4Wd

$244.44

SKU: P020 51802B-1

In Stock
In Stock
Ships by Jul 30
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Pro Comp 51802B-1 is a suspension box kit (Box #1) for 2011-2019 Chevrolet Silverado 2500HD and GMC Sierra 2500HD trucks, designed to be used with existing Pro Comp K1085B, K1087B, or K1088B suspension lift systems. It includes various components such as crossmembers, skid plates, spacers, lift blocks, and brackets, and is suitable for repairs or as an upgrade to existing Pro Comp lift kits. This kit supports a 6-inch lift and is made in the USA.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandProComp
Part NumberP020 51802B-1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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