Product Description
BA-921 DETROIT "CERTIFIED REMANUFACTURED" AIR BRAKE COMPRESSOR – DD13 / DD15
PART NUMBER(S):
Fleet Products: K035912X (Remanufactured) | OE: K035912
DESCRIPTION:
Model: BA-921
Vehicles: Freightliner / Western Star (with DD13 / DD15 engines)
• Air Inlet: Top mount 1 3/8" inlet tube
• Air Outlet: Top-mounted
• Exhaust Port: M26 x 1.5
• Coolant Ports: M18 x 1.5
• Thru-Drive: Yes – accessory mounting capable
• EPA Cert: 2010+ compliant Detroit Diesel engines
• Design: Gear-driven, twin-cylinder
• Application-specific for Detroit DD13 and DD15 series engines
Applications:
Purpose-built for Detroit Diesel DD13 and DD15 engines used in Class 8 vehicles. Suitable for long-haul trucks, vocational units, and fleet-service highway tractors. Integrated thru-drive allows additional accessory mounts. Meets emissions requirements for post-2010 EPA standards.
CROSS-REFERENCE(S):
1100.330.001, 1100330001, 1100-330-001, 1651790017, 165-179-0017, 4711300215, 4711301715, 701296AT, A0011307215, A4711300215, A4711301715, A4711302515, DDEA0011307215, DDEA4711302515, DDEEA4711302515, EA4711300215, EA4711301715, EA4711302515, K034111, K035911, K035912, K035912X, K095125, K095125X, K095731, RA4711302515
A cross-reference listing means this part should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Always inspect or replace the discharge line from the compressor head
✔ Improper routing or damaged lines can cause premature compressor failure
✔ Confirm port alignment and hose routing for DD13/DD15 configuration
✔ Follow OEM installation instructions for best performance
✔ Torque bolts and fittings per Detroit Diesel service standards
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com .
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