The Hendrickson S-37478-1 or S374781 is a slack adjuster repair kit for air brake systems, specified with a Webb 28-spline interface. Hendrickson classifies this as a position-not-specified unit, meaning it is not handed left or right, simplifying inventory for shops maintaining multiple axle positions. The kit is sold individually. Pro Gear and Transmission carries genuine Hendrickson brake components for professional fleet and shop buyers. Call us to confirm this part fits your specific axle and brake configuration before ordering.
Features
Hendrickson OEM part number S-37478-1 (also listed as S374781)
Slack adjuster repair kit for air brake systems
Webb 28-spline specification
Position not specified - not handed left or right
Sold as a single unit (each)
Genuine Hendrickson part from Pro Gear and Transmission
Tech Specs
- Part Number: S-37478-1
- Spline Count: Webb 28 spline
- Position: Not specified (non-handed)
- Unit of Measure: Each
- Application: Air brake slack adjuster
