Description
National 370065A is a trailer-axle wheel seal (4.250 in bore × 6.025 in OD × 0.971 in wide) for tractor, trailer, and dolly wheel ends, replacing SKF Scotseal 42623 / 42627, Stemco 372-7062 / 373-0123 / 307-0723, and Federal-Mogul/National 380065A / 376590A. The seal sits at the inboard wheel-bearing of standard TN and TP trailer-axle wheel ends and is interchangeable across the “Scotseal family” per SKF’s published interchange.
Specifications
| Manufacturer | National (Federal-Mogul) |
|---|---|
| Part Number | 370065A |
| Part Type | Wheel Seal (Trailer Axle) |
| Bore (Spindle) | 4.250 in |
| Outer Diameter | 6.025 in |
| Width | 0.971 in |
Cross References
This wheel seal replaces or is equivalent to the following part numbers:
- National (Federal-Mogul): 370065A, 380065A, 376590A, P370065
- SKF Scotseal: 42623, 42624, 42625, 42626, 42627, 42627PRO, 42631, 46390, 40091, 528942
- Stemco: 373-0123, 373-0223, 373-0323, 371-0023, 370-7023, 370-7099, 372-7062, 372-7099, 307-0723, 504851, 377-7723
- CR (Chicago Rawhide): 32QJ-235
- Meritor: A-1205-Y-1975, A-1205-S-2593, 1205-L-1260, 1205L-1260, A1205Y-1975, MER-0123
- Ford / Mercedes: 4C4O-1177-CA, 4C4Z-1177-CB
- Navistar / International: 547915C91
- GM (Detroit Diesel): 12303854
- Also known as: 299-40, 851, A-27268, 530370, 530480, 0223, TKR851, 70596, 65262U
Applications
This wheel seal fits trailer wheel ends with a 4.250 in spindle bore. Verify by existing seal part number on the affected wheel end:
- Standard TN / TP / TQ trailer-axle wheel ends with 4.250 in spindle bore (SKF / Stemco / National Scotseal interchange)
- Dolly axles using OEM Stemco 372-7062 / 373-0123 or National 370065A
Verify your existing seal part number and spindle bore (4.250 in) before ordering. Wheel-seal interchange depends on bearing setup (oil bath vs grease) and seal style (rubber-lip vs unitized) — consult the SKF Scotseal Family interchange or the trailer manufacturer’s service procedure.
