At a Glance
- >Replaces Dexter 10-56
- >3.125 inch inner diameter
- >4.50 inch outer diameter
- >Used on many 10K-HD to 15K heavy-duty axle hubs
- >Single seal included
- Brand: Need A Trailer Part®
- SKU: 10-3125-08
Before You Order
Match the part number, measurements and connection points that apply to your trailer.
Fitment Check
| 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. |
Product Details
Oil Seal 3.125 inch ID x 4.50 inch OD
Replaces Dexter 10-56 – Fits 10K-HD, 12K, 15K Dexter and 12K–16K Lippert Axles
Part Number: 10-3125-08
Replacement oil seal used on many heavy-duty trailer axle assemblies. Commonly replaces Dexter part number 10-56.
Fits many Dexter 10K-HD, 12K, and 15K axles and select Lippert 12K–16K axles. Includes one seal.
Important Fitment Notes
This seal does not fit Dexter 10K General Duty (GD) axles. It also does not fit Lippert (LCI) 10K axle configurations. Always confirm hub casting numbers and measurements before ordering.
Features
- Replaces Dexter 10-56
- 3.125 inch inner diameter
- 4.50 inch outer diameter
- Used on many 10K-HD to 15K heavy-duty axle hubs
- Single seal included
Specifications
| Specification | Detail |
| Inner Diameter | 3.125 inch |
| Outer Diameter | 4.50 inch |
| Dexter Reference | 10-56 |
| AL-KO Reference | 568217 |
| Hayes Reference | 091023 |
| Lippert Application | Common on 12K–16K axle assemblies |
Common Hub Casting Numbers
| Manufacturer | Casting Numbers |
| Dexter | 9-27, 8-214, 8-216, 8-401, 9-28 |
| AL-KO | 090814 |
Verify seal dimensions and hub casting number before installation.
CUSTOMER PROOF
What customers say about parts like this.
Selected from R&P customer feedback for Bearing / Seal products and related trailer service.
RELEVANT TO
Bearing / Seal
★★★★★GOOGLE REVIEW
“I've ordered lots of trailer repair parts from them, always fast service, well packed, and the right parts. I highly recommend.”
★★★★★GOOGLE REVIEW
“Would like to say thanks to everyone at R and P Carriages parts were delivered fast and with the very helpful staff, the right parts were sent the first time. Thanks Happy Holiday's.”
★★★★★GOOGLE REVIEW
“Received swivel d-ring tie down 4 days after my wife ordered them , great price and came with backing plates. I received exactly what I paid for, thanks for the great service. Chris Davis , Mooresville NC”
Need help matching a part? Send us photos, part numbers and measurements. We can help narrow it down before you order.