The Midland Haldex 40910589 is an automatic slack adjuster (ABA) with a 5-1/2" arm length and a 1-1/2" offset, supplied without hardware. It has a 1-1/2" spline diameter with 10 splines, a 34° body angle and a 1/2" arm hole, plus a straight grease fitting at 180°.
An automatic adjuster takes up the slack that builds as brake lining wears, so the lining keeps a steady clearance from the drum. That keeps brake response consistent and cuts down on manual adjustments between services. This is a genuine Midland Haldex part from Pro Gear and Transmission.
A factory handling fee of $25.00 per order is added at checkout.
Features
Automatic slack adjuster (ABA) without hardware
Arm length 5-1/2" with a 1-1/2" offset
Spline diameter and count: 1-1/2"-10
Body angle 34° and arm hole diameter 1/2"
Straight grease fitting located at 180°
Takes up slack automatically as brake lining wears
Tech Specs
- Spline Diameter-Spline Count: 1-1/2"-10
- Arm Length: 5-1/2"
- Body Angle: 34°
- Offset: 1-1/2"
- Arm Hole Diameter: 1/2"
- OEM Part Number: 409-10589
- Grease Fitting Location: 180°
- Grease Fitting Type: Straight
