Brake Return Spring 16-1/2in Brake 11.00in Length 1.13in Coil Diameter 0.20in Wire Diameter Steel Red Paint
- Part number: HBK-3219-002
- OE MFG: MACK
- OEM Reference: 2719-78580
- Cross Reference: EATON CORP./ INDUSTRIAL PLYMER PROD : 78580; GMC TRUCK : 2021400; MACK : 2719-78580, 4333-142919R1, 4333-472976C1; NAVISTAR : 142919, 142919R1, 472976, 472976C1; OTHER : 01-349, B981, C8TZ2296A, E-1428A, M-1014
- Product Class: Brake Shoes & Kits
The PAI HBK-3219-002 is a brake return spring for a 16-1/2-inch brake, measuring 11.00 inches in length with a 1.13-inch coil diameter and 0.20-inch steel wire finished in red paint. Brake return springs are heavy duty diesel truck parts that retract brake shoes after actuation within a drum-brake assembly. MACK lists 2719-78580 as the OEM reference; additional identification includes EATON 78580 and GMC 2021400.








