The Bendix K139893 is an S-Cam type spring brake in the T30/30 configuration, designed for heavy-duty air brake systems. The T30/30 designation identifies this as a combination piggyback unit with dual 30 cubic inch service and spring brake chambers, a common specification on tandem drive axle applications. As a genuine Bendix air brake component, it meets OEM design intent for actuator travel, clamp load, and push rod geometry. Pro Gear and Transmission carries this part for fleets and shop accounts. Call us to confirm proper fitment for your specific axle and brake configuration before ordering.
Features
Genuine Bendix spring brake, part number K139893
S-Cam actuator type, compatible with standard S-cam drum brake foundations
T30/30 configuration: 30 cubic inch service chamber paired with 30 cubic inch spring brake chamber
Sold individually (each)
Also referenced as BWK139893
Tech Specs
- Type: Spring Brake (S-Cam)
- Configuration: T30/30 (30 cu in service chamber / 30 cu in spring brake chamber)
- Sold as: Each
- Part Number: K139893
- Alternate Reference: BWK139893
