Match the part number, measurements and connection points that apply to your trailer.
| Part Number | Match the number stamped on the original bearing or seal. |
|---|---|
| Dimensions | Measure the mating surfaces when a number is unavailable. |
| Hub / Axle | Use capacity as context, not as the only fitment check. |
Part Number: BK3-200-10-10
Complete trailer bearing service kit for standard 8-lug trailer hubs commonly used on 5,200 lb to 7,000 lb axles. This kit is typically found on pre-1999 axle assemblies using the 10-10 grease seal configuration.
Common applications include boat trailers and utility trailers equipped with Dexter, AL-KO, Rockwell, or Lippert axles using a #42 spindle.
| Inner Bearing | 25580 (3.265" ID) |
|---|---|
| Inner Race | 25520 (3.265" OD) |
| Outer Bearing | 14125A (1.25" ID) |
| Outer Race | 14276 (2.717" OD) |
| Grease Seal | 21333TB — 2.125" × 3.38" (10-10) |
| Tang Washer | 5-101 (1.00" standard) |
| Cotter Pin | 165649 |
| Axle Rating | 5,200–7,000 lb |
| Spindle Type | #42 spindle |
Important: Axle manufacturers have used multiple bearing and seal combinations over time. Always confirm bearing numbers or measure races and seal dimensions before ordering. Verify specifications before installation.
