Match the part number, measurements and connection points that apply to your trailer.
| Bearings | Match inner and outer bearing numbers. |
|---|---|
| Seal | Match the seal number or dimensions. |
| Bolt Pattern | Verify the complete lug pattern. |
| Brake Size | Confirm when applicable. |
Complete 6,000 lb axle build kit designed for custom trailer fabrication. This kit includes square #42 weld-on spindles, 6-lug idler hubs, bearing kits with seals and dust caps, and all required spindle hardware. Axle tube is not included.
| Quantity | Description | Part Number |
| 2 | #42 Square Spindles | SP-50642-SQ |
| 2 | Round Washers | SW1000 |
| 2 | Castle Nuts | 006-001-00 |
| 2 | Cotter Pins | 165649 |
| 2 | 6 Lug Idler Hubs (6 on 5.5") | 82655-1 |
| 2 | 6,000 lb Bearing Kit with Dust Cap | HD-6000-KIT |
| Component | Size / Description | Part Number |
| Dust Cap | 2.71" | 021-043-02 |
| Outer Bearing | 1.25" | 15123 |
| Inner Bearing | 1.75" | 25580 |
| Seal | 2.125" | 10-10 |
| Seal | 2.25" | 10-36 |
| Specification | Measurement |
| Overall Length | 11" |
| Bottom Diameter | 2" |
| Top Diameter | 1" |
| Shaft Length | 5.93" |
| Weld End Diameter | 2" Diameter Shaft |
#42 square spindles are commonly used in 6,000 lb axle builds and require proper alignment and square welding to ensure correct camber and hub tracking.
6 on 5.5" bolt pattern hubs are common on mid-weight equipment and utility trailers. Always verify bolt pattern, bearing numbers, and seal diameters before installation.
Axle tube not included. Verify specifications prior to welding and assembly.
