Description
5016612X BA-921 DETROIT AIR BRAKE COMPRESSOR 60 SERIES FLANGE MOUNT
PART NUMBER(S):
Fleet Products: 5016612X (Remanufactured) | Replaces OE: Detroit Diesel: 23531247, 23531259, 23531315, 23532823, 23533645, 23535534, R23531247, R23531259, R23531315, R23535534 | Bendix: 5010821, 5010822, 5010823, 5010824, 5012794, 5014382, 5016612, 5016613, 5016614, 5016799, 5018485, 5018514, 5018516, 5018522, 5018523, 801287, 8018523, 802767 | Automann: 170.AC5018485
DESCRIPTION:
Model: BA-921 Detroit Air Brake Compressor with 4-Bolt Cast Iron Cylinder Head
Vehicles: Detroit Diesel 60-Series, DDC Low Emissions S60 Pre-2007 commercial trucks
• Mounting: Flange mount
• Cylinder head: 4-bolt cast iron head
• Drive gear: 63-tooth drive gear with 21-tooth spline
• Cooling: Water and air cooled
• Air inlet port: Top
• Air outlet port: Side
• Cylinders: 1
• Bore x stroke: 3.622 in x 2.126 in
• Displacement at 1250 RPM: 15.8 CFM
• Flow at 1800 RPM / 120 PSI: 11.6 CFM
• Flow at 3000 RPM / 120 PSI: 16.5 CFM
• Horsepower at 1800 RPM / 120 PSIG: 4.6 HP loaded / 0.8 HP unloaded
• Minimum coolant flow at max RPM: 1.5 gpm
• Minimum oil pressure: 15 PSI
• Governor cut-out minimum: 120 PSI
• Unloader line: 3/16 in ID
• Temperature range: 170°F inlet / 400°F discharge
• Thru-drive: 9-tooth spline
• Cylinder head M8 torque: 265–292 in-lb
• Governor adapter M8 torque: 195–213 in-lb
• Rear end cover M10 torque: 195–213 in-lb
• Inlet port fitting M27 x 2 torque: 991–1089 in-lb
• Discharge port fitting M22 x 1.5 torque: 814–912 in-lb
• Water port fitting M18 x 1.5 torque: 593–637 in-lb
• Oil port 7/16-16 UNF torque: 150–170 in-lb
• Unloader port 1/8-27 NPT: 2–3 turns from finger tight
Applications: This BA-921 air brake compressor is used on Detroit Diesel 60-Series and DDC Low Emissions S60 Pre-2007 commercial truck applications. It is configured for flange-mount installation with top air inlet, side air outlet, water and air cooling, and 9-tooth thru-drive configuration. Verify gear, spline, porting, and mounting configuration against the original compressor before installation.
CROSS-REFERENCE(S):
1651790004, 2600-040-001, 2600040001, 4L-7-143, 4L7143, 5010821X, 5010823X, 5010824X, 5012794X, 5016612X, 5016614X, 5016799X, 5018485X, 5018516X, 5018523X, 620012, 702006AT, C23535534, P23532823, P23533645, P23535534, T-5010119, T5010119
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 1.5 gpm coolant flow
✔ Ensure external oil supply line is connected for single-piston applications
✔ Verify air and coolant fittings are properly sealed before startup
✔ Drain air reservoirs before servicing air brake components
✔ Torque all fasteners and fittings to specification before returning vehicle to service
Warranty Information
