ROCKWELL GENUINE OEM HEAVY-DUTY AIR BRAKE COMPONENTS AIR BRAKE CHAMBER BRACKET ASSEMBLY Rockwell B25‑3299‑D‑5880 Chamber & Camshaft Support Bracket WhiteGMC / Volvo GM Heavy Truck P/N V1117067 · New Old Stock in original box LIST PRICE $240.00 OUR PRICE $119.00 FREE SHIPPING IN STOCK — SHIPS SAME OR NEXT BUSINESS DAY Genuine Rockwell casting, unused shelf stock. Limited quantity — when it’s gone, it’s gone. Priced below dealer replacement Current dealer pricing on comparable 3299-series brackets runs well above this. Shipping included No surprise freight charges added at checkout. Returns accepted If it isn’t the right bracket for your axle, send it back. READ BEFORE YOU BUY — VERIFY BY PART NUMBER Chamber brackets in the Rockwell 3299 family look similar but are not interchangeable. The prefix (B25 here) sets the mounting angle and the camshaft barrel length, and the base number (D‑5880) sets the casting and the hand. Match the full number, or match against your axle’s brake spec sheet, before ordering. This casting is one side of a matched pair — the opposite-hand casting is 3299‑E‑5881. If you need both sides, you need one of each. ROCKWELL / MERITOR P/N B25‑3299‑D‑5880 also written B253299D5880 WHITEGMC / VOLVO P/N V1117067 as boxed and labeled CONDITION NEW OLD STOCK never installed · original box Mating Components & Related Part Numbers The 3299‑D‑5880 bracket appears in published heavy-truck brake specifications alongside the components below. Exact pairing depends on the bracket prefix and your axle’s brake spec — use this as a starting point for identification, not as a substitution guide. COMPONENT PART NUMBERS SEEN WITH THIS BRACKET Opposite-hand bracket 3299‑E‑5881 S-camshaft 2210‑P‑6152 · 2210‑M‑6149 · 2210‑F‑6454 · 2210‑W‑6523 · 2210‑Q‑6179 Brake spider A‑3211‑P‑3448 · A‑3211‑P‑3604 Slack adjuster A51‑3275‑X‑596 Camshaft bushing & seal kit KIT8033 · 8022 Same casting, other prefixes A25‑ · A31‑ · A37‑ · A41‑ · A61‑ · A63‑ · A73‑ · A81‑3299‑D‑5880 (different angle — not a substitute) We list only numbers we can document. No aftermarket cross-reference is published for this specific prefix/casting combination, so none is claimed here. Why This Bracket Genuine Rockwell casting Original-equipment iron casting with the 5880 number cast into the body — not a fabricated or reproduction bracket. Holds the whole foundation brake in line Carries the camshaft barrel and the chamber mounting face on one casting, so chamber, camshaft and slack adjuster stay in correct relationship. Correct angle, not just correct size The B25 prefix fixes the bracket’s rotation on the axle. A bracket with the right casting but the wrong prefix will bolt on and still put the chamber in the wrong place. Never installed Shelf stock in its original Rockwell carton with the WhiteGMC parts label intact. No corrosion pitting, no elongated bolt holes, no prior heat. Discontinued through the truck dealer These older WhiteGMC / Volvo GM Heavy Truck numbers are no longer stocked by most dealers. Surplus is how this bracket gets found now. Documented, not guessed Every number in this listing comes off the part, the box label, or published brake specification tables. Specifications Part typeAir brake chamber bracket assembly with integral camshaft support barrel ManufacturerRockwell (later Meritor / ArvinMeritor) Rockwell part numberB25 3299 D 5880 Truck OEM part numberWhiteGMC / Volvo GM Heavy Truck V1117067 OEM description“AY CHAMBER BRKT” (Assembly, Chamber Bracket) Casting number on part5880 SideRight-hand rear — opposite hand is 3299‑E‑5881 MaterialCast iron, factory primer finish Country of manufactureCanada Quantity1 bracket assembly (sold individually) IncludedBracket only. Camshaft, bushings, seals, chamber and mounting hardware are not included. Dimensional data is not published for this casting by two independent sources, so no measurements are quoted here rather than estimating them. Message us if you need a specific dimension measured off the part before you buy. Applications TRUCK MAKES WhiteGMC · White · Volvo GM Heavy Truck
Autocar · GMC Brigadier / General
Class 7–8 conventional and vocational chassis AXLE POSITION Rear drive axle, right-hand side
Rockwell S-cam foundation brake
Rockwell / Meritor rear axle assemblies Fitment is by part number, not by truck model. The same chassis was built with several different brake specs over its production run, so a model-year match does not guarantee this is your bracket. Check the number stamped on the bracket you are replacing, or pull your axle’s brake spec. Not sure? Send us your VIN or the old part number and we will tell you straight whether this one fits — including if it doesn’t. GENUINE OEM Rockwell casting FREE SHIPPING Included in the price FAST DISPATCH Same or next business day RETURNS ACCEPTED Wrong part, send it back Rockwell, Meritor, WhiteGMC, Volvo, Autocar and GMC are registered trademarks of their respective owners. Part numbers and trademarks are used for identification and reference only. This listing is for the single genuine OEM part described and pictured above. We are not an authorized dealer for any of the manufacturers named.
