Automatic Slack Adjuster Stroke 28 Spline 1.50" - 139.2831

Part#: AAA6011392831

Features and Benefits

  • Unclevised stroke sensing slack adjuster for direct push rod connection on commercial brake systems
  • Stroke sensing monitors push rod travel to trigger precise brake adjustment at the correct threshold
  • Yellow piston provides clear visual identification for accurate part selection during brake service
  • Unclevised arm end enables direct camshaft push rod connection without a separate clevis component
  • Spline engagement delivers positive torque transfer to commercial brake camshafts during actuation
  • Chamber size compatibility matched for correct brake performance on standard commercial air setups

Warranty

Warranty Up to 3 years warranty

Please contact customer service to know more details

Weight6.25
PistonYellow Piston
TypeUnhanded
Clevis TypeUnclevised
Arm Length5.50 in.
Slack Spline Diameter1.50 in.
Slack Spline Count28
Sensing TypeStroke
Chamber Sizes24
Maximum Torque RatingMore than 45 inch pounds
Interchange
R803110
TK803110
TWDR803110
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 unclevised configuration, the component delivers consistent stopping performance and dependable actuation across a wide range of transport platforms.
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Hundreds of parts

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