The Midland Haldex Automatic Slack Adjuster (S-ABA) 40020212 is a clearance-sensing adjuster designed for 16-1/2" brake assemblies on trailer axle applications. The 6" arm length pairs with a 1-1/2" diameter, 28-spline input and a 0-degree body angle with zero offset, placing it in a straight-mount configuration. The arm hole diameter measures 1/2". Anchor bracket style is Plate and Flat Stud; bracket kit 42710563 is the corresponding hardware set. The grease fitting is straight-type and located at the 180-degree position. The clearance-sensing design maintains a constant, uniform gap between drum and lining, and the gradual adjustment cycle reduces the risk of over-adjustment during prolonged braking. OEM cross-reference: 409-26006. This unit can also substitute for part 40010212. Sold by Pro Gear and Transmission; call us to confirm proper fit for your application.
The gradual adjustment of the S-ABA lowers the risk of over-adjustment during prolonged braking.
For 16-1/2" Brake Assembly, Trailer Axle Application.
Can be used in place of 40010212.
Common cross-references include: HDX-40020212, HA-400-20212, HAL40020212, MD40020212, K041877, AS1041, SA2179, 409-20006, ZZ40020212.
Features
S-ABA (Automatic Brake Adjuster) design with clearance-sensing mechanism for consistent drum-to-lining clearance
6" arm length, 0-degree body angle, zero offset
1-1/2" spline diameter with 28-spline count
1/2" arm hole diameter
Anchor bracket style: Plate and Flat Stud (bracket kit 42710563)
Straight grease fitting located at 180-degree position
High-alloy steel gears, rolled wormshaft, and heat-treated housing
For 16-1/2" brake assembly, trailer axle application; interchangeable with 40010212
OEM part number: 409-26006
Tech Specs
- Spline Diameter: 1-1/2"
- Spline Count: 28
- Arm Length: 6"
- Body Angle: 0 degrees
- Offset: 0
- Arm Hole Diameter: 1/2"
- Anchor Bracket Style: Plate and Flat Stud
- Bracket Kit: 42710563
- Grease Fitting Type: Straight
- Grease Fitting Location: 180 degrees
- OEM Part Number: 409-26006
- Application: 16-1/2" Brake Assembly, Trailer Axle
Additional Information
The clearance-sensing design maintains a constant and uniform distance between the brake drum and lining.The gradual adjustment of the S-ABA lowers the risk of over-adjustment during prolonged braking.
For 16-1/2" Brake Assembly, Trailer Axle Application.
Can be used in place of 40010212.
Common cross-references include: HDX-40020212, HA-400-20212, HAL40020212, MD40020212, K041877, AS1041, SA2179, 409-20006, ZZ40020212.
