At a Glance
- >Includes two complete 21-88 oil cap service kits
- >3.50" oil caps for 10K GD axles (post-2009)
- >Includes matched O-rings and center plugs
- >Ideal for tandem axle maintenance or spare inventory
- Brand: R & P Carriages
- SKU: 21-88-KIT-LOTOF2
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
(2 Pack) 21-88 Oil Bath Cap Kit with Plug and O-Ring – 3.5" Cap for 10K GD Axles
Part Number: 21-88-KIT-LOTOF2
Two complete oil cap service kits including caps, sealing O-rings, and center plugs for 21-88 oil bath applications. Designed for 10K general duty axles manufactured after 2009.
R&P Knowledge Hub
Oil bath systems rely on proper sealing to retain lubricant and protect bearings. Replacing caps, plugs, and O-rings together ensures consistent sealing and prevents leaks.
Features
- Includes two complete 21-88 oil cap service kits
- 3.50" oil caps for 10K GD axles (post-2009)
- Includes matched O-rings and center plugs
- Ideal for tandem axle maintenance or spare inventory
Specifications
| Part Number | 21-88-KIT-LOTOF2 |
| Cap Size | 3.50" OD |
| Application | 21-88 Oil Cap Systems |
| Axle Rating | 10K GD (Post 2009) |
| Material | Standard Oil Bath Components |
Included Components
| Part Number | Quantity | Description |
|---|---|---|
| 21-88 | 2 | Oil Bath Cap (3.50") |
| 010-163-00 | 2 | O-Ring for 21-88 Cap |
| 046-032-00 | 2 | Center Oil Plug |
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”
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