National Seals Oil Bath Wheel Hub Seal, Rear/Drive Axle, Nitrile, 37 Series, 6.3 in O.D., 4.765 in I.D., 1-5/64 in Width
Product Overview
The most dependable point contact seal in the market! This oil bath wheel hub seal is designed to prevent lubricant leakage and contamination in heavy-duty truck rear and drive axles. Constructed of tough, abrasion-resistant nitrile, it meets or exceeds OEM specifications in function, form, and fit. The seal features a patented Sure-Lock I.D. rib to prevent bore and shaft leaks, ensuring superior containment and longer service life. Ideal for applications requiring reliable sealing against abrasives, moisture, and fluid intermixing. National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
Features & Benefits
- Dynamic Edge Red 37 Series oil bath seals deliver dependable point contact seal
- Unitized construction provides greater structural integrity, easier installation and main lip protection
- Abrasion-resistant nitrile with spring-loaded main lip for positive sealing with reduced shaft interference
- Unique rubber I.D. and O.D. includes patented SURE-LOCK® ribs that prevent shaft leaks and bore contamination
- An Installation Tool (Also Available) is Essential in Correctly Installing Oil Bath Seals.
- Components of machines rely on the oil seal to prevent abrasives, corrosive moisture and other harmful contaminants from entering the mechanics of the machine.
- Offers Superior Containment Exclusion, Reduced Friction Build-Up and Longer Life Than Other Wheel Seals in it's Price Range.
- Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.
- Separation of fluids and gases may completely rely on the seal to prevent intermixture of two different mediums such as lubricating oil and water.
Specifications
| Application | Rear/Drive Axle |
| Material | Nitrile |
| Seal I.D. | 4.765 in |
| Seal O.D. | 6.3 in |
| Series | 37 Series |
| Type | Oil Bath Wheel Hub Seal |
| Width | 1-5/64 in |
| Bore Size | 6.31 in |
| Product Line | 37 Series |
| Seal Type | 11 |
| Shaft Size | 4.765 in |
| Shaft Type | Radial |
| Shoulder O.D. | 6.3 in |
| Standards | Meets or Exceeds OEM Specifications |
| Manufacturer Part Number | 370003A |
| Product Category | Wheel Seal |
| Quantity | 1 |
Interchanges & Equivalent parts:
| 380003A |
| 392-9131 |
| 393-0173 |
| 393-0273 |
| 47691 |
| 47692 |
| 47695 |
| 47697 |
| HD809 |
| MER0173 |
| TS65156U |
| 027003943 |
| 027021377 |
| 027074450 |
| 027074962 |
| 027104674 |
| 027108900 |
| 027128839 |
| 02955840 |
| 1045273 |
| 11CH0210 |
| 12303853 |
| 15550869 |
| 15557677 |
| 15679880 |
| 15982769 |
| 15982869 |
| 1609948C1 |
| 1680802C1 |
| 2-7074962 |
| 2057480 |
| 2317614 |
| 2322621 |
| 2332303 |
| 2596974C1 |
| 27003943 |
| 27021377 |
| 27074450 |
| 27104674 |
| 27108900 |
| 27128839 |
| 291-308 |
| 291-311 |
| 2929 |
| 2955840 |
| 296439C91 |
| 296440C91 |
| 2975361 |
| 2994 |
| 428454C91 |
| 428455C91 |
| 447568C91 |
| 447574C91 |
| 47691CHR |
| 47692CHR |
| 47693CHR |
| 510515 |
| 544694 |
| 594962C1 |
| 620199 |
| 685215 |
| 704925 |
| 766571C91 |
| 775698C91 |
| 8060888 |
| 837003 |
| 94001-0028 |
| 94001-0034 |
| 940010019 |
| 940010022 |
| 940010028 |
| 940010030 |
| 940010034 |
| 983570R1 |
| CHR 47691 |
| CHR 47697 |
| CHR47691 |
| GT-370003A |
| NA 370003A |
| NA-370003A |
| NME370003A |
| S-18138 |
| S-A226 |
| V370003A |
| V8020698 |
| 070HH134 |
| 1199A1665 |
| 1199B1614 |
| 1199B1666 |
| 1199U1217 |
| 1199V1666 |
| 128861 |
| 229 |
| 32QJ266 |
| 3909073 |
| 3909098 |
| 3910073 |
| 392-9073 |
| 3929098 |
| 393-0373 |
| 3979773 |
| 45705 |
| 47694 |
| 47695S |
| 47696 |
| 65056U |
| 88319 |
| A120501061 |
| A1205I11061 |
| A1205K1285 |
| A1205U1061 |
| A1205V2492 |
| A120 |
| RNT370003A |




















