
Image is for illustration purposes only. Actual part may vary.
M1213
This is a heavy-duty replacement trunnion stand designed for Mack trucks equipped with a Camelback rear suspension. It supports the trunnion bar, which allows the walking beam to pivot smoothly. When the factory stand becomes cracked or worn, this aftermarket part offers a durable, easy-to-install solution that bolts on from underneath the frame rails without removing other components, minimizing downtime. The kit includes the stand, collars, and hardware, and is built from heat-treated alloy steel for extended service life.
Designed for 1-inch frame holes; chassis reaming is required if the truck frame has 7/8-inch OEM holes. Additional spacers (Automann M62314 1/4-inch or M62338 3/8-inch) may be necessary for proper fitment.
Part Number: M1213
TRUNNION STAND REPLAVEMENT (MACK)
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering