
Image is for illustration purposes only. Actual part may vary.
66884
This is a heavy‑duty cast‑iron brake drum for pusher and tag axles on commercial trucks and trailers. It provides the friction surface that the brake shoes press against to slow the vehicle. When the drum wears past its maximum diameter, develops cracks, or shows hot spots, it must be replaced to maintain safe braking performance. The 16.5‑inch diameter and 7‑inch width match common air brake systems on auxiliary axles.
Exact fitment depends on axle model and brake configuration. Verify drum diameter, shoe width, bolt pattern, and pilot diameter match your axle.
Part Number: 66884
BRAKE DRUM
Category: Brakes
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end