Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Knox Trailers · Suspension & Steering
AUBK8175-18
In stock · ships from Knoxville
This is a U-bolt kit for heavy-duty truck suspensions, consisting of two Grade 8 steel U-bolts, four nuts, and four washers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It secures the axle to the leaf spring assembly, primarily on Freightliner trucks requiring a 1-inch diameter bolt with a 5-inch inside width and 18-inch legs. These U-bolts are tightened to a high torque of 1,010 ft-lbs to maintain proper axle alignment and suspension integrity. They are typically replaced when stretched, corroded, or broken, often during spring or axle service.
Part Number: AUBK8175-18
U BOLT KIT
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
