The Meritor A77-3275H1152 or A773275H1152 is a genuine OEM automatic slack adjuster for heavy-duty drum brake systems. It features a 1.50 in. spline diameter with a 28-spline count and a 5.50 in. arm length. The unit is unhanded, meaning it installs on either side of the axle, and uses stroke-type sensing to maintain proper brake adjustment. The yellow-piston design is compatible with chamber sizes 20, 24, and 30. Clevis hardware is not included with this unclevised unit. Also referenced as 20422027, 8235A773275H1152, and TDAA773275H1152. Call us to confirm proper fit for your specific brake assembly.
Features
Genuine Meritor OEM automatic slack adjuster (ASA) for drum brakes
1.50 in. slack spline diameter with 28-spline count
5.50 in. arm length
Unhanded design - fits left or right side installation
Stroke-type sensing with yellow piston
Compatible with chamber sizes 20, 24, and 30
Unclevised - clevis not included
Interchanges with: 20422027, 8235A773275H1152, TDAA773275H1152
Tech Specs
- Spline Diameter: 1.50 in.
- Spline Count: 28
- Arm Length: 5.50 in.
- Sensing Type: Stroke
- Clevis Type: Unclevised
- Handedness: Unhanded
- Brake Type: Drum
- Piston: Yellow
- Compatible Chamber Sizes: 20, 24, 30
- Bushing Inside Diameter: 0.50 in.
- Maximum Torque Rating: More than 45 inch pounds
- VMRS Code: 013-017-005
- Unit Pack: 1
- UPC: 680502243466
