The Meritor A40-3275S1059 or A403275S1059 is a genuine OEM automatic slack adjuster (ASA) for heavy-duty air brake systems. Manufactured under the Haldex AA1 designation within the Meritor air brake line, this ASA is built to a 1.50-28 specification. Automatic slack adjusters maintain proper brake chamber push-rod stroke without manual adjustment intervals, which is a critical function for air brake compliance and consistent stopping performance on commercial vehicles. Pro Gear and Transmission carries this genuine Meritor part. Call us to confirm proper fit for your specific axle and brake configuration before ordering.
Non returnable item
Features
Genuine Meritor OEM automatic slack adjuster (ASA)
Haldex AA1 designation within the Meritor air brake product line
1.50-28 specification
Designed for heavy-duty air brake systems
Part number: A40-3275S1059 or A403275S1059
Tech Specs
- Part Number: A40-3275S1059 or A403275S1059
- Type: Automatic Slack Adjuster (ASA)
- Specification: 1.50-28
- Product Line: Meritor Air Brake - Haldex AA1
- OEM Status: Genuine Meritor OEM
