Build-Your-Own Trailer Axle Kit · For Two Axles (4 Hubs & Spindles)
Part Number: BYOAK-84-H545-SQx2
Spindle Reference: SP20484
⚠️ NOTE: These spindles do NOT include an EZ-Lube grease zerk.
This listing is for a complete build-your-own trailer axle kit for TWO axles, supplying four (4) idler hubs and four (4) weld-on spindles. Designed for fabricators and trailer builders who want to build or replace straight axles without purchasing a complete pre-assembled axle.
The included spindles feature a 4" long, 1.5" square weld-on tail shaft, sized to fit inside common 2" square steel tubing with 1/4" wall thickness.
Key Features
- Complete kit to build two straight trailer axles
- Weld-on square spindles — easy fabrication
- Rated 1,750 lb per wheel (3,500 lb per axle)
- Standard serviceable bearings and seals
- No EZ-Lube — traditional grease packing
What’s Included (FOR TWO AXLES)
- (4) Idler hubs — 5 on 4.5" bolt pattern (3,500 lb)
- (4) Weld-on square spindles — SP20484 style
- (4) Inner bearings — L68149 (1-3/8" ID)
- (4) Outer bearings — L44649 (1-1/16" ID)
- (4) Grease seals — 10-19 (1.75" ID)
- (4) Dust caps — 1.98"
- (20) Lug nuts
- (4) Axle nuts
- (4) Spindle washers
Specifications
| Specification | Detail |
|---|---|
| Axle Configuration | Two Axles (4 Wheels) |
| Capacity | 3,500 lb per axle (1,750 lb per wheel) |
| Bolt Pattern | 5 on 4.5" |
| Spindle Base | 1.5" square × 4" long (weld-on) |
| Outer Bearing | L44649 (1-1/16" ID) |
| Inner Bearing | L68149 (1-3/8" ID) |
| Seal | 10-19 (1.75" ID) |
| Grease Type | Standard (No EZ-Lube) |
Not Included
- Axle tube (requires 2" square tubing, 1/4" wall)
- Brake components
- Wheels or tires
This kit is intended for builders and fabricators. Welding and axle alignment should be performed by a qualified technician. Verify all dimensions and ratings before installation.