Suspension and Components› Suspension Kits

Cognito Motorsports

~(35 lbs. 21X8X8)~ Cognito 4.0 Inch Block 17.5 Inch U Bolt Kit Fab Tapered 11-19 Silverado Sierra 3500HD

$269.95

SKU: C01L 110-90183

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Cognito Motorsports 4.0 inch block and 17.5 inch U-bolt kit is designed for 2011-2019 Chevrolet/GMC 3500HD 2WD/4WD Silverado/Sierra models. It features fabricated steel blocks with a semi-gloss black powder coat finish. Heavy-duty zinc-plated U-bolts and hardware are included. This product is made in the USA and comes with a limited lifetime warranty.

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

BrandCognito Motorsports
Part NumberC01L 110-90183

Videos

DIESEL TALK | Cognito 3" Leveling Kit 11-19 GM 2500 / 3500 6.6L Duramax LML / L5P

DIESEL TALK | Cognito 3" Leveling Kit 11-19 GM 2500 / 3500 6.6L Duramax LML / L5P

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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