| AllMakes or OE | AllMakes |
| Bushing Inside Diameter | 0.50 In. |
| Heavy Duty Supplier | Yes |
| Weight | 7.85 |
| Brake Size | 16.50 in. |
| Pallet Quantity | 144 |
| Application | Trailer |
| Slack Spline Diameter | 1.50 in. |
| Type | Unhanded |
| Arm Length | 5.50 in. |
| Sensing Type | Clearance |
| Slack Spline Count | 10 |
| Clevis Type | Unclevised |
| Angle | 0 degrees |
| OEM | Haldex |
| Maximum Torque Rating | Less than 15 foot pounds |
| Brand | Meritor |
| Model | AA1 Replacement |
| Aftermarket Extended Warranty - Linehaul | 2 Years / 200K Miles |
| Related Bracket Number | R810308 |
| Production Part Number | 409-10685 |
| Notes | Standard version. Premium version is M807021. Self-setting alternative is M808021. |
| Service Part Number | 400-10215 |
| Duty Type | Heavy Duty |
| Part Terminology | Air Brake Automatic Slack Adjuster |