Match the part number, measurements and connection points that apply to your trailer.
| Bearings | Match inner and outer bearing numbers. |
|---|---|
| Seal | Match the seal number or dimensions. |
| Bolt Pattern | Verify the complete lug pattern. |
| Brake Size | Confirm when applicable. |
Part Number: RW12011-2
These replacement oil cap assemblies are designed for Rockwell hubs and drums rated between 9,000 lb and 16,000 lb. Each cap uses a 3.75" OD thread with 8 TPI and replaces Rockwell part number 12011-1. Common on Rockwell American brake drums built after 1996 and compatible with select Kodiak disc brake hubs using this thread size.
| Specification | Detail |
| Thread Diameter | 3.75" |
| Thread Pitch | 8 threads per inch |
| Axle Rating | Common on 9K–16K Rockwell axles |
| Replaces | Rockwell 12011-1 |
Fitment varies by axle and hub manufacturer. Always compare thread size, diameter, and O-ring seat dimensions before installation.
Selected from R&P customer feedback for Hub / Drum 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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