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.
Wabash National · Body & Cab
21400098
In stock · ships from Knoxville
This is a polyurethane dock bumper designed to protect trailer doors and dock edges from impact damage.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 5 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Verify bolt hole spacing (3-1/2" center-to-center) and overall dimensions (5-3/4" L x 3-3/4" H x 3" W) to ensure correct fit.
Part data verified against 1 catalog sources
Numbers this part supersedes or interchanges with. Showing 8 of 8.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It typically mounts on the rear of dry van or reefer trailers, absorbing shock when backing into a loading dock or during coupling. Replace the bumper when it becomes cracked, deformed, or worn to prevent metal‑to‑metal contact. The 3‑inch wide bumper fits many popular trailer models with a 3‑1/2 inch bolt hole spread and uses 1/2‑inch mounting bolts.
Part Number: 21400098
DOCK BUMPER
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
