At a Glance
- >4" oil bath hub cap for heavy-duty trailer axles
- >Designed for Lippert (LCI) oil-bath hub systems
- >Includes oil cap, sealing O-ring, and fill plug
- >Common replacement for Lippert part number 183772
- Brand: Lippert
- SKU: 183772-KIT
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: 183772-KIT
Oil bath hub cap kit designed for heavy-duty trailer axles using a 4" oil cap. This kit is commonly used on Lippert (LCI) 10,000 lb to 16,000 lb oil-bath axle assemblies and includes the components required for cap replacement.
| Kit Part Number | 183772-KIT |
|---|---|
| Oil Cap Diameter | 4" |
| Oil Cap | 183772 |
| O-Ring | 010-050-00 |
| Oil Plug | 046-032-00 |
| Typical Axle Use | Lippert (LCI) 10K–16K oil-bath axles |
This kit is intended for Lippert oil-bath hub systems. While similar in size to some Dexter caps, Dexter-branded oil caps may not provide proper internal clearance on Lippert axles. Verify hub style and cap dimensions before installation.
Selected from R&P customer feedback for Bearing / Seal products and related trailer service.
“I've ordered lots of trailer repair parts from them, always fast service, well packed, and the right parts. I highly recommend.”
“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.”
“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”
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