T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
2912411-D814
FAW
| Attribute | Description |
|---|---|
| Product Name | Rear Leaf Spring U-Bolt Assembly |
| Common Names | U-Bolt, Ride Bolt, U-Clamp, Rear Axle Clamp Bolt |
| Application Position | Rear Suspension – Leaf Spring to Rear Axle Mounting |
| Function | Clamps multi-leaf spring pack tightly onto the rear axle beam |
| Design Type | U-shaped one-piece bolt with dual threaded ends and flat base |
| Intended Use | Heavy-Duty Trucks, Dump Trucks, Tractor Units, 6×4 / 8×4 Configurations |
| Parameter | Specification |
|---|---|
| OEM Part Number | 2912411-D814 |
| Alternative / Similar Numbers | |
| • 2912411-D814U (with washers & nuts) | |
| • 2912411-D655 (shorter version) | |
| • 2912411-71B/A (older light-duty variant) | |
| Thread Diameter | M30 × 2.0 mm (fine thread for superior self-locking performance) |
| Total Length (L) | 480–520 mm (depends on leaf spring thickness and number of leaves) |
| Span Width (Opening) | Typically 100 mm (fits FAW 457, 498, and other standard rear axles) |
| Material | 40Cr or 35CrMo alloy steel (quenched and tempered) |
| Strength Grade | 10.9 grade (some reinforced versions reach 12.9 grade) |
| Surface Treatment | Dacromet coating or phosphated-soap treatment (excellent salt spray resistance, >500 hrs) |
| Included Components | U-bolt + 2 High-Strength Hex Nuts + Flat Washers (in kit form: D814U) |
| Recommended Torque | 900–1100 N·m (M30 size; confirm exact value per FAW 2025 Service Manual) |
| Performance Features | High tensile strength, excellent anti-fatigue design, vibration-resistant, durable under heavy cyclic loading |
