Meritor part number A1-3275M1183 or A13275M1183 is a genuine OEM automatic slack adjuster (ASA) for drum brake applications. The adjuster features a 1.25-inch spline diameter with a 10-spline count and a 5.50-inch arm length. Sensing is stroke-type, and the unit is unhanded, making it compatible with either side of the axle. It is designed for brake chambers sized 16 or 24, and the clevis type is unclevised. Maximum torque rating exceeds 45 inch-pounds. The unit includes a red piston. Interchange references include 8235A13275M1183, ATIA13275M1183, and TDAA13275M1183. Call us to confirm fitment for your specific application.

• Spline Diameter: 1.25 in. Spline Count: 10 Arm Length: 5.50 in. Sensing Type: Stroke Clevis Type: Unclevised Chamber Sizes: 16 or 24 Handedness: Unhanded Bushing Inside Diameter: 0.50 in. Maximum Torque Rating: More than 45 inch-pounds Brake Type: Drum Brake Piston Color: Red VMRS Code: 013-017-005

Interchange cross-reference numbers for Meritor A1-3275M1183: 8235A13275M1183, ATIA13275M1183, TDAA13275M1183. This part is sold as genuine Meritor OEM. Contact Pro Gear and Transmission to confirm the correct slack adjuster for your brake chamber size and axle configuration.