| Product Line | Suspension |
| Category Name | Chassis & Suspension |
| Part Type | Rear Leaf Spring |
| Alternate Part Name | Spring Assembly, Leaf Spring Assembly, Rear Spring Assembly, Rear Spring |
| OEM Part Number | 4QK4004A |
| Application Type | Semi-Trucks, Heavy Duty Trucks |
| Mounting Position | Rear Suspension |
| Material | Steel |
| Leaf Pack Thickness (D) | 10-3/8 in. |
| Leaf Spring Count | 11 |
| Leaf Width | 4 in. |
| Length (A) | 30-5/8 in. |
| Length (B) | 28-1/4 in. |
| Spring Arch Length (C) | 6-7/8 in. |
| Spring Load Capacity | 22.000 lb. |
| Net Weight | 402 lb. |
| Cross References | 4QK4004A, 52629, 62143, 750850, 81581, SRE62-143, SRE62143 |
| Intended Application | - Compatible With Mack Truck 1970 – 2020 models equipped with Camel Back rear mechanical suspension systems and 55 in. axle spacing, suitable for heavy-duty vocational and highway trucks requiring multi-leaf rear spring assemblies, and engineered to interchange with equivalent Camelback suspension configurations that match the specified geometry, load capacity, and mounting architecture.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
|
