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.

OTR · Hardware & Fasteners
RH21603
In stock · ships from Knoxville
This is a hose tender spring used to support air brake hoses and electrical cables on heavy-duty trucks and trailers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Commonly used as a hose tender spring between tractor and trailer or on axle-to-frame hose supports. Fits any model requiring a 15.42-inch spring with 1.08-inch coil OD.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It prevents sagging, kinking, and chafing that can lead to air leaks or electrical damage. The spring measures 15.42 inches in length with a 1.08 inch coil outside diameter, and is designed to wrap around the hose or cable assembly. Replace if the spring is stretched, rusted, or broken to maintain proper routing and protect the lines.
Part Number: RH21603
SPRING, HOSE TENDER 15.42'
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more