Description
K028383X – BA-921 COMPRESSOR – SIDE MOUNT (DETROIT/CAT ENGINES)
PART NUMBER(S):
Fleet Products: K028383X (Reman) | OE: K028383, 3624499C91, 3624499
DESCRIPTION:
Model: BA-921 Side Mount Air Brake Compressor
Vehicles: Detroit Diesel & Caterpillar engines (side-mount)
• Rated Displacement: 15.8 CFM @ 1250 RPM
• Compressor Type: Single-cylinder reciprocating
• Mounting: Side mount, direct to block
• Cooling: Water cooled head, air cooled crankcase
• Air Inlet: Cylinder head inlet reed valve
• Air Outlet: Integrated discharge valve plate
• Safety Valve: Built-in to prevent head overpressure
• Cooling Plate: Between cylinder head and valve plate
• Drive Gear: Mates directly with engine gear
• Weight: Approx. 39 lbs
Applications:
Used on Detroit and Caterpillar engines requiring a side-mounted BA-921 compressor. Suitable for maintaining compressed air in air brake systems across heavy-duty vocational and over-the-road trucks.
CROSS-REFERENCE(S):
K028383X, K028383, 3624499C91, 3624499, 046255012533X0R162410R9375170AC501253320R01782233637501142750125325012532X50125335012533BXR50154247455012533X745X5012533801463BAR5012533BEN5012533XBEX5012533XBW5012533BX5012533XF5012533XHVG5012533XK020283K020284K020284XK066837OR1624R9555012533XA cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Verify side mount orientation and direct engine block contact
✔ Confirm reed valve inlet and valve plate discharge locations
✔ Follow engine manufacturer torque spec for side mounting face
✔ Maintain clean coolant and filtered intake air for compressor longevity
✔ Use proper gaskets and inspect mating surfaces before install
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
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Warranty Information
