BA-921® Air Brake Compressor

The K056647 BA-921® Air Brake Compressor by Bendix CVS, sold by Wofford Truck Parts, is a remanufactured, Bendix-pattern single-cylinder compressor built for heavy-duty air brake and auxiliary air systems. It delivers steady, high-volume air output to keep service and spring brakes responsive, even under severe-duty cycles. Designed as an OEM-fit replacement, it helps restore proper system pressure, improves recharge time, and supports reliable operation of air accessories. Ideal for fleet maintenance where consistent air supply and durability matter most.

BENDIX CVS Part No: K056647

$566.04

Specifications

The K056647 BA-921® Air Brake Compressor from Bendix CVS is a high-capacity, single-cylinder reciprocating compressor engineered for heavy-duty vehicles that rely on consistent air pressure. Commonly used on Caterpillar ACERT applications (including C11, C13, C15, and C18 engine platforms), the BA-921 provides and maintains compressed air for service brakes, spring brakes, and auxiliary air devices. Remanufactured to Bendix specifications, it matches OEM mounting/porting and is end-of-line tested for performance. Sold by Wofford Truck Parts, it’s a dependable fleet replacement built for extreme operating conditions.

Weight

45.74

Compatibility

Trucks equipped with Caterpillar C11 engines using BA-921 style compressors
Trucks equipped with Caterpillar C13 engines using BA-921 style compressors
Trucks equipped with Caterpillar C15 engines using BA-921 style compressors
Trucks equipped with Caterpillar C18 engines using BA-921 style compressors

Alternative Part Numbers

0R-1623
0R1623
165-179-9213
1651799213
20R-0177
20R0177
222-2900
2222900
223-3636
2233636
253-1736
2531736
254-3853
2543853
255-4160
2554160
2N-1287
2N1287
353-7136
3537136
385-0936
3850936
5011441
5011441X
5012459
5012464
5012510
5013058X
5014177
5014180
5014235
5014236
5014401
5014401X
5014402
5014402X
5014427
5014427X
5014428
801465
801798
801826
K048938
K048939
K048940
K056647X
K056649
K066811
K066831
K066837
R9555014428X
T-5011432
T5011432
VMX1007105
VMX1010226