Description
The REVHD RM-T04 RevMax is an aftermarket trailer-axle wheel seal for TP-style straight spindles, with HNBR sealing lips and an extended OD/ID footprint for greater bore contact than standard seals. Compatible with both oil-bath and grease hub configurations on Fruehauf Pro-Par, Eaton P-22, Meritor TP, and Dana TP-spindle trailer axles. Direct replacement for National 380065A, SKF 42627, Stemco 373-0223, and ConMet 10045889.
Signs You Need a New Wheel Seal
- Oil or grease leaking out of the hub onto the wheel or brake
- Contamination, water, or debris visible in the hub oil at PM
- Wheel-bearing rumble or premature bearing wear
- Visible cracking, hardening, or wear on the existing seal lip
- Recurring brake-shoe contamination from leaking hub oil
Specifications
| Manufacturer | REVHD |
|---|---|
| Part Number | RM-T04 |
| Part Type | Trailer Axle Wheel Seal (RevMax) |
| Axle Position | Trailer |
| Spindle Type | TP (straight) |
| Outside Diameter | 6.008 in |
| Inside (Shaft) Diameter | 4.250 in |
| Seal Material | HNBR sealing lips |
| Hub Compatibility | Oil-bath or grease |
Cross References
This wheel seal replaces or is equivalent to the following part numbers:
- National: 370065A, 380065A
- SKF: 42622, 42623, 42627, 42631
- Stemco: 307-0723, 372-7099, 373-0123, 373-0223
- ConMet: 10045889
- Meritor: MER0223
Applications
This wheel seal fits trailer axles built on TP-style straight spindles, including:
- Fruehauf Pro-Par trailer axles
- Eaton P-22 trailer axles
- Meritor TP trailer axles
- Dana trailer axles with TP spindles
Representative trailers using these axles:
- Great Dane, Wabash, Utility, Vanguard, Hyundai Translead vans and reefers
- Flatbed, drop-deck, and tank trailers built on TP-spindle axles
- Refuse, dump, and intermodal chassis with matching axle spec
Verify your spindle type, hub bore dimensions, and lubrication mode (oil vs grease) before ordering — TP spindles share many seal envelopes but not all are interchangeable.









