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Post Onsite · Brakes & Wheel End
WBB78500B-NL
In stock · ships from Knoxville
This is a heavy-duty cast brake drum for air brake systems, sized 16.5 inches in diameter by 8.625 inches wide.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It is balanced and features 10 bolt holes with a 0.94‑inch diameter, making it suitable for severe‑duty vocational trucks like garbage trucks. The drum is replaced when the braking surface wears beyond the maximum discard diameter, shows heat cracking, or becomes out‑of‑round to maintain safe stopping performance.
Part Number: WBB78500B-NL
GARBAGE TRUCK DRUM
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
