Description
CUMMINS 85MM AIR BRAKE COMPRESSOR – ISC AND RELATED ENGINES
PART NUMBER(S):
Fleet Products: 9111535300X (Remanufactured) | Replaces OE: Cummins: 3936810, 3943980, 3944524, 3944525, 3944526, 3948518, 3948846, 3948847, 3949097, 3949098, 3949099, 3949718, 3966520, 3966520RX, 3966521, 3966521RX, 3966522, 3966522R, 3966522RX, 3969110, 3969110RX, 3969111, 3969124, 39699124, 4933780, 4933782, 4933782RX, 4933783, 4936218, 4936218RX, 4937462, 4946297, 5286677, 5286677RX, 5286678, 5301088, 5301094, 5301094CUM, 5301094NX, 5301094RX, 5301094RXCUM, 5301100, 5301101, 6338620 | WABCO: 9111530030, 9111530030X, 9111530037, 9111530040, 9111530100, 9111530107, 9111530200, 9111530486, 9111530776, 911153477, 9111535300, 9111535300X, 9111535307, 9111535307X, 9111535310, 9111539202, 9111539380, 9111539387 | Meritor: R9559111535300X
DESCRIPTION:
Model: SS318 85MM Air Brake Compressor
Vehicles: Cummins ISL, ISC, and related heavy-duty engine platforms
• Bore size: 85mm
• CFM output: 18.7
• Cooling: Water-cooled with 3/4"-16 STOR water inlet
• Air discharge port: M27-2.0 STOR
• Governor port: M10-1.0 STOR
• Thru-drive: 11 tooth
• Gear drive: 42 tooth
• Head assembly: 9111539202AH
• Includes mounting gasket
• Service note: 9111530030 applications using 3944524, 3944525, 3944526, 3949098, 3966522, and 3969110 are non thru-drive
• Service note: 9111530040 applications using 3944526, 3948849, 3949101, 3949719, 3966522, 3969114, 4933780, 4936219, 5286679, and 5301096 use 42 tooth gear and 13T thru-drive
• Service note: 3948846 may use 11 or 13 tooth spline; verify before installation
Applications: Designed for Cummins ISC, ISL, and related heavy-duty engine platforms using SS318 85mm air brake compressor configurations. Suitable for air brake system pressurization where the listed STOR ports, head assembly, gear drive, and thru-drive configuration match the original compressor.
CROSS-REFERENCE(S):
197941D, 2500030002, 2500-030-002, 2500 030 002, 700614AT, 969110, S21435, S-21435, MPGS-21435, ATX21435, ATP21435, 21435SS, GTS21435, PS9111535300, VIP9111535300, 53969111535300X, ECU9111535300X, HDX 9111535300X, WAR9111535300, WAR-9111535300, S 9111535300, 1650792010
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm 85mm bore and STOR thread specifications before installation
✔ Inspect and replace coolant lines, gaskets, and port fittings as required
✔ Ensure proper orientation of thru-drive and governor port
✔ Verify gear drive and spline configuration before installation
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
