4,200 lb Straight Spindle Hub Kit · 5 on 4.5 · UFP / L68149 Bearings
Part Number: 33667U-KIT
This listing is for one (1) complete straight spindle hub kit designed for 4,200 lb trailer axles using a straight spindle with identical inner and outer bearings.
This hub configuration is commonly found on UFP / Load Rite boat trailers and other marine applications that use a straight 1.375" spindle journal.
Key Features
- Designed for straight spindle trailer axles
- Common on Load Rite & UFP boat trailers
- Uses the same bearing for inner and outer positions
- 5-lug wheel pattern (5 on 4.5")
- Includes bearings, seal, dust cap, and lug nuts
Specifications
| Specification | Detail |
|---|---|
| Axle Rating | 4,200 lb |
| Bolt Pattern | 5 on 4.5" |
| Inner Bearing | L68149 (1.375" ID) |
| Outer Bearing | L68149 (1.375" ID) |
| Seal | 32373 (1.68" ID × 2.56" OD) |
| Dust Cap | 36189U · 2.328" OD · Lube Hole |
| Stud Size | 1/2"-20 |
What’s Included
- 4,200 lb straight spindle hub · 5 on 4.5"
- (2) L68149 bearings (inner & outer)
- (1) Grease seal · 32373
- (1) Dust cap · 36189U (with lube hole)
- (5) 1/2"-20 lug nuts
Fitment Notes
- Fits straight spindles using identical inner & outer bearings
- Common on UFP and Load Rite boat trailers
- Verify spindle diameter and bearing numbers before ordering
Important: This hub will not fit stepped spindles. Confirm that your axle uses L68149 bearings in both positions.