Description
The Power Products P370003 is a heavy-duty drive axle wheel oil seal sized to the industry-standard 370003A footprint, replacing National 370003A / 380003A and Stemco 393-0173 across Class 8 rear axles. Fits oil-bath hub assemblies on most heavy-duty makes — Freightliner, Mack, International (Navistar), Volvo, Western Star, Peterbilt, Kenworth — using a 4.766″ bore, 6.316″ OD, 1.125″ wide seal envelope.
Signs You Need a New Wheel Seal
- Oil weeping or visible streaks down the wheel rim and tire sidewall
- Greasy film on the brake drum or rotor face from gear-oil contamination
- Hub oil sight glass reading low between PMs
- Roadside DOT writeups for axle leaks or oil-fouled brakes
- Bearing noise or excess heat on the suspect hub at the end of a run
Specifications
| Manufacturer | Power Products |
|---|---|
| Part Number | P370003 |
| Part Type | Drive Axle Wheel Oil Seal |
| Bore (ID) | 4.766″ |
| Outside Diameter (OD) | 6.316″ |
| Width | 1.125″ |
| Application | Drive / rear axle hub, oil-bath |
Cross References
This wheel seal replaces or is equivalent to the following part numbers:
- National: 370003A, 380003A, 370034A, 370086A, 5481, 6872S, 9015S
- Stemco: 393-0173, 392-9131, 393-0273, 309-0973
- Chicago Rawhide / SKF: 47691, 47692, 47695, 47696, 47697, 47698, 1211, 1215, 43875, 45152, 49050, 50640, Classic 47697, LongLife 47693, PlusXL 47691 / 47692
- ConMet: 107552, 10005431, 10045887
- Meritor: A1205L2352, A1205T696, A1205U1061, A1205U2101, A1205V2180, A1205J2194, A1205Q2487, A1205R2410, A1205V2492, A1805V542, MER0173, MER0273
- Mack: 32QJ127A, 32QJ267, 32QJ29316, 364SZ202, 88AX420, 88AX461
- Navistar (International): 1615305C1, 1680802C1, 447551C91, 447574C91, 447574C92, 548347C91, 548347C92, 594962C1, 775698C91, 974526R91, 983570R1
- Ford: D5HZ1175A, D7HZ1175D, E1HT1175BA, E1HZ1175B, E2HZ1175A, E2HZ1177A, E4HT1175AA, E4HZ1175B, E5HT1175GA, E8HS1175BA, E8HS1175CA, F2HZ1175C, F4HS1175BA
- GMC / Volvo: 2317614, 15550869, 15557677, 15679880, 15982869, 27074962, 27125816, 940010019, 940010022, 940010028, 940010030, 940010034, 940010040
- Volvo: 3941956
- Freightliner: 6819970546
- Western Star: 330783408, 940010022
- Trailmobile: 4131170, 4131171, 4131226, 4131231
- Triseal: 65556, 69799, 70799, 65056U, 65056W, 65165U
- Boss Seals: B370003, B47695, B47697
- Mechanex / Barrier: 761400P, HS47694, HS47695
- NOK: 304, 861, 88319, UZ0304EO
- Victor: 48089, SS64603, SS68006
- Pioneer Weston: 307408
- Rev HD: R1-D02
Applications
This drive axle wheel seal fits oil-bath hub assemblies on the rear / drive axles of:
- Freightliner Class 8 conventionals and Cascadia / Columbia / Coronado / Century / FLD platforms
- Mack CH / CL / CV / Granite / Pinnacle / Anthem highway and vocational tractors
- International (Navistar) 9000 / Prostar / LT / LoneStar series
- Kenworth T-series and Peterbilt 379 / 386 / 387 / 389 / 567 / 579 highway tractors
- Volvo VN / VNL / VHD and Western Star 4900 / 5700 series
- Trailmobile and other heavy-duty trailer drive-style axle assemblies
Confirm wheel-end configuration (oil bath vs grease) and exact hub model before ordering — the 370003A footprint is the most common HD Class 8 size, but front steer / trailer / lift-axle hubs use a different seal envelope.
