Suspension and Components› Front Suspension Components

ProComp

RGHT FRNT STEER KNUCKLE

$605.95

SKU: P020 90-4329

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Pro Comp 90-4329 is an individual passenger side knuckle (also called a steering upright or spindle) that is part of the larger Pro Comp K1085B suspension lift system. This component is typically purchased to replace a damaged knuckle or as part of the Box Kit #51802B-2.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandProComp
Part NumberP020 90-4329

Videos

Lifts & Levels: 6” Pro Comp w/ Level 2015 GMC Sierra 2500HD

Lifts & Levels: 6” Pro Comp w/ Level 2015 GMC Sierra 2500HD
New Pro Comp 6 Inch Knuckle Suspension System for '99-'09 Chevy HD

New Pro Comp 6 Inch Knuckle Suspension System for '99-'09 Chevy HD

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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