Trailer Axles, Brakes & Suspension
Click a part on the diagram to shop it, or use the part numbers below. Open full-size diagram
Tap a part on the diagram, or pick a part type below (axle & brakes 1–9, suspension 10–14). Full-size diagram
Part numbers by axle size
| Part | 3,500 lb axles | 7,000 lb axles |
|---|---|---|
| 1Brake assembly (self-adjusting) | 10" x 2-1/4"LH RT4314 ›RH RT4315 › | 12" x 2"LH RT4318 ›RH RT4319 › |
| 1Brake assembly (manual adjust) | 10" x 2-1/4"LH RT4301 ›RH RT4303 › | not stocked yet – ask us |
| 2Drum assembly | 1/2" stud · 5 on 4-1/2"TR4112PG › | 9/16" stud · 8 on 6-1/2"TR4118PG › |
| 9Idler hub (no brakes) | 1/2" stud · 5 on 4-1/2"TR4108PG › | not stocked yet – ask us |
| 3Hub bearing kit | BL1302 › | BL1304 › |
| 3Grease seal | 1.719" IDBL1314 › | 2-1/8"RT4056-10 › |
| 3Dust cap | 1.99"RT4021 › | 2.72"RT4024 › |
| 4Spring seat | 2-3/8" axleRT3044 › | 3" axleRT3046 › |
| 5U-bolt / tie plate kit | 2-3/8" axle · 5-1/2" LUBR-251 › | 3" axle · 6-1/2" LUBR-301 › |
| 8Tire (tire only) | ST 15"RDG25-702 205/75RDG25-703 225/75 | ST235/85R16RDG25-706 › |
| 8Tire & wheel assembly | not stocked yet – ask us | 16" 8-on-6.5RDG25-705-WS8B-23580R160E-K-60865GSHD-V |
| Suspension · springs, hangers, equalizers & spring-eye hardware | ||
| 6Leaf spring | not stocked yet – ask us | not stocked yet – ask us |
| 10Spring hangers (front / center / rear) | not stocked yet – ask us | not stocked yet – ask us |
| 14Equalizer | not stocked yet – ask us | not stocked yet – ask us |
| 13Shackle strap / link | not stocked yet – ask us | not stocked yet – ask us |
| 11Hanger & shackle bolts (6-pk kit) | 9/16" x 3"BL1605 dry ›BL1607 wet › | 9/16" x 3"BL1605 dry ›BL1607 wet › |
| 12Spring-eye bushings 9/16" x 1-3/4" | BL1609 nylon 6-pk › | BL1609 nylon 6-pk › |
Drum assembly includes bearings/races, grease seal, dust cap & wheel nuts · Hub bearing kit: bearings/races, grease seal, castle nut, cotter pin & tang washer · U-bolt kit: 4 U-bolts, 2 tie plates, 8 nuts
9/16" spring-eye bolts & bushings fit 1-3/4" wide springs (2,000–7,000 lb axles) · BL1607 wet bolts have a grease zerk (use with bronze bushings) · dashed = not on the website yet