Trailer Axle U-Bolt Kit – 3" Axle – 5200–7000 lb – Complete Single Axle Set w/ TP-4 Tie Plates
Part Number: R91618-TP4-KIT
Complete single axle U-bolt mounting kit for 3" trailer axles rated 5,200–7,000 lb. Includes heavy-duty 9/16" U-bolts with matching TP-4 tie plates for secure axle-to-leaf spring attachment.
Includes hardware for both sides of one axle (complete installation).
R&P Knowledge Hub
U-bolt kits must match axle diameter and spring width. This kit fits common 3" axle tubes used on 5,200–7,000 lb trailer axles.
Always replace U-bolts when servicing suspension components. Reusing hardware can result in improper clamping force and premature failure.
Features
- Complete single axle mounting kit (both sides)
- Fits 3" axle tubes (5,200–7,000 lb range)
- 9/16" diameter heavy-duty U-bolts
- Includes TP-4 tie plates for secure installation
Specifications
| Specification | Detail |
| U-Bolt Diameter | 9/16" |
| Inside Width | 3" |
| Length | 8" |
| Axle Compatibility | 5,200–7,000 lb |
Included Components
| Quantity | Item |
| 4 | R91618 U-Bolt (each includes nuts & washers) |
| 2 | TP-4 Tie Plate |
Shipping: Calculated at checkout.