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.

Automann · Suspension & Steering
M18004
In stock · ships from Knoxville
This is a spigot cap for Chalmers heavy-duty truck and trailer suspensions.
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
Type 2 joint, 46K lbs and up. Use with bolt kit BKC580500GR8F. Designed for standard bushing 800010 or oversized bushing 800009.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It is the Type 2 design rated for 46,000 lbs and above, used at the connection point of the walking beam or torque rod to seal in grease and keep out dirt and moisture. It is typically replaced when worn, damaged, or during a suspension rebuild to maintain proper joint lubrication and prevent premature bushing failure.
Part Number: M18004
SPIGOT CAP CHALMERS
Vendor: Automann
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering