Description
LP3997X BA-921 SIDE MOUNT COMPRESSOR REMANUFACTURED
PART NUMBER(S):
Fleet Products: LP3997X (Remanufactured) | Replaces OE: Navistar: 2514355C1, 3709920C92, 3709920C93, 3709920C94, 3709920C95, 62541007121 | MAN: 51 54100 7121, 51 54100 7204, 51.54100-7078, 51.54100-7095, 51.54100-7114, 51.54100-7121, 51.54100-7204, 51.54100-7231, 51.54100-7246, 51541007095, 51541007121, 99.54100-7039 | Bendix: 3012368, 501245R1, K000444, K001240, K0012402, K004489, K010313, K012223, K015948, K025822N00, K042162, K044642, K044642R, K071289N00, K071289N04, K075155, K082069N04, K118684N00, K118684N04, K118684X00, BXK044642SC1, 3709920C91, 3709920C92, 5011245R1 | Automann: 170.ACK042162
DESCRIPTION:
Model: Bendix BA-921 Navistar/MAN Side Mount Air Brake Compressor
Vehicles: Pre-2010 MaxxForce G11/G13, 2010+ MaxxForce 11/13L, MAN TGA, TGX, TGS, Neoplan Bus, Starliner, Cityliner
• Mounting: Side mount, engine block face
• Cooling: Water-cooled cylinder head, air-cooled crankcase
• Cylinders: 1
• Bore × Stroke: 3.622 in × 2.126 in
• Displacement: 360 cc
• Rated displacement: 15.8 CFM @ 1250 RPM
• Flow: 11.6 CFM @ 1800 RPM / 120 PSI
• Flow: 16.5 CFM @ 3000 RPM / 120 PSI
• Power requirement: 4.6 HP loaded / 0.8 HP unloaded @ 1800 RPM / 120 PSIG
• Minimum coolant flow: 1.5 GPM
• Minimum oil pressure: 15 PSI
• Minimum governor cut-out pressure: 120 PSI
• Minimum unloader line I.D.: 3/16 in
• Temperature range: 170°F inlet / 400°F discharge
• Cylinder head fastener torque: 265–292 in-lb
• Governor adapter fastener torque: 195–213 in-lb
• Rear end cover fastener torque: 195–213 in-lb
• Inlet port fitting: M27 × 2, 991–1089 in-lb
• Discharge port fitting: M22 × 1.5, 814–912 in-lb
• Water port fitting: M16 × 1.5, 593–637 in-lb
• Oil port fitting: 7/16-16 UNF, 150–170 in-lb
• Unloader port fitting: 1/8-27 NPT, 2–3 turns from finger tight
CROSS-REFERENCE(S):
2514355C1, 3709920C92, 3709920C93, 3709920C94, 3709920C95, 62541007121, 51 54100 7121, 51 54100 7204, 51.54100-7078, 51.54100-7095, 51.54100-7114, 51.54100-7121, 51.54100-7204, 51.54100-7231, 51.54100-7246, 51541007095, 51541007121, 99.54100-7039, 3012368, 501245R1, K000444, K001240, K0012402, K004489, K010313, K012223, K015948, K025822N00, K042162, K044642, K044642R, K071289N00, K071289N04, K075155, K082069N04, K118684N00, K118684N04, K118684X00, 170.ACK042162, 702020AT, BXK237295SC, LP3980, LP3997, LP3997X
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:
✔ Maintain minimum coolant flow of 1.5 GPM
✔ Confirm external oil supply line is connected before startup
✔ Verify air, oil, and coolant fittings are properly sealed before operation
✔ Drain air reservoirs before servicing air brake components
✔ Replace all mounting gaskets and sealing components during installation
✔ Check for air, oil, and coolant leaks after the system reaches operating pressure
✔ Torque all fasteners and fittings to the specified values before returning vehicle to service
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
