Automatic Slack Adjuster Stroke 28 Spline 1.50" - 139.2838

Part#: AAA6011392838

Features and Benefits

  • Unclevised stroke sensing slack adjuster with extended lube piston for enhanced service intervals
  • Extended lube piston design retains lubricant longer to reduce brake service lubrication frequency
  • Stroke sensing mechanism monitors push rod travel for accurate, timely brake adjustment triggering
  • Unclevised arm end allows direct push rod connection without additional clevis components
  • Spline profile provides reliable torque transfer to commercial brake camshafts during actuation
  • Chamber size compatibility matched for correct performance on standard commercial air brake setups

Warranty

Warranty Up to 3 years warranty

Please contact customer service to know more details

Weight6.25
Clevis TypeUnclevised
TypeUnhanded
PistonYellow Piston_Extended Lube
Arm Length5.50 in.
Slack Spline Diameter1.50 in.
Slack Spline Count28
Sensing TypeStroke
Chamber Sizes24
Maximum Torque RatingMore than 45 inch pounds
Interchange
8235R805013
ABPN42ASR805013
ATIR805013
MERR805013
R805013
R805013AUT
R805013RI
RIR805013
ROR805013
RWR805013
TDAR805013
The Slack Adjuster is an unhanded stroke-sensing design with a yellow piston and 5.5" arm, built for automatic adjustment on Heavy Duty commercial vehicle axles. Featuring an extended lube unclevised configuration, the component delivers consistent stopping performance across a wide range of transport platforms.
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Hundreds of parts

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