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NationalPart #: 4740
National 4740 Wheel Seal - Front Inner
148 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, and Dodge, Express 2500, Express 3500, Savana 2500, Savana 3500, C2500, C3500, C1500, C1500 Suburban, C2500 Suburban, P30, Ram 2500, Ram 3500, P3500, G30, G3500, G20, and G2500
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National 4740 Wheel Seal for Front Inner Applications
National 4740 is a front inner wheel seal built for driveline and axle sealing applications that demand accurate fit and dependable sealing performance. It uses nitrile material, a 0.250-inch width, and a Redi-Coat finish to support consistent sealing at the hub and shaft interface.
Compatible With Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, GMC Savana 3500, Chevrolet C2500, Chevrolet C3500, Chevrolet C1500, Chevrolet C1500 Suburban, Chevrolet C2500 Suburban, Chevrolet P30, Dodge Ram 2500, Dodge Ram 3500, GMC C2500, GMC C3500, GMC C1500, GMC C1500 Suburban, GMC C2500 Suburban, GMC P3500, Chevrolet G30, GMC G3500, Chevrolet G20, and GMC G2500 front inner positions listed in the fitment data.
- Part number 4740 wheel seal for front inner axle locations
- Nitrile construction for sealing performance in wheel-end service
- Inside diameter: 2.180 in. / 55.370 mm
- Outside diameter: 3.004 in. / 76.300 mm
- Housing bore: 2.999 in. / 76.170 mm
- Width: 0.250 in. / 6.350 mm
- Redi-Coat finish for improved sealing interface
- National Series 4000, Type 282 oil seal design
Fitment Details
- Fits 1996-2002 Chevrolet Express 2500, front inner, with Heavy Duty Brakes.
- Fits 1996-2002 Chevrolet Express 3500, front inner.
- Fits 1996-2002 GMC Savana 2500, front inner, with Heavy Duty Brakes.
- Fits 1996-2002 GMC Savana 3500, front inner.
- Fits 1992-2000 Chevrolet C2500, front inner, with Heavy Duty Brakes.
- Fits 1992-2000 Chevrolet C3500, front inner, except 15000 lb drive axle.
- Fits 1995-1999 Chevrolet C1500, front inner, with Heavy Duty Brakes.
- Fits 1995-1999 Chevrolet C1500 Suburban, front inner, with Heavy Duty Brakes.
- Fits 1992-1999 Chevrolet C2500 Suburban, front inner, with Heavy Duty Brakes.
- Fits 1991-1999 Chevrolet P30, front inner, except I-Beam Axle.
- Fits 1994-1999 Dodge Ram 2500, front inner.
- Fits 1994-1999 Dodge Ram 3500, front inner, Single Rear Wheel.
- Fits 1995-1999 GMC C1500, front inner, with Heavy Duty Brakes.
- Fits 1995-1999 GMC C1500 Suburban, front inner, with Heavy Duty Brakes.
- Fits 1992-1999 GMC C2500 Suburban, front inner, with Heavy Duty Brakes.
- Fits 1991-1999 GMC P3500, front inner, with I-Beam Axle.
- Fits 1992-1996 Chevrolet G30, front inner.
- Fits 1992-1996 GMC G3500, front inner.
- Fits 1992-1995 Chevrolet G20, front inner, with Heavy Duty Brakes.
- Fits 1992-1995 GMC G2500, front inner, with Heavy Duty Brakes.
What It Helps Address
- Wheel-end oil seepage at the front inner hub
- Contamination entering the bearing and seal area
- Seal wear from age, heat, and road exposure
- Loss of sealing integrity during axle service
- Fitment issues when replacing a worn OE-style wheel seal
Installation Notes
Verify the shaft diameter, housing bore, and width before installation. Clean the hub and sealing surfaces thoroughly, and inspect the bearing area for wear or damage that could affect seal life. This part cross-references Centric Parts 417.66008 for the same application.
Quality Assurance
National has supplied sealing solutions for more than 75 years and continues to update its designs for modern vehicle service needs. Part number 4740 is built as a precision wheel seal for front inner applications on Chevrolet, GMC, and Dodge platforms listed above.
| Brand | National |
|---|---|
| Part Number | 4740 |
| Housing Bore (Inch) | 2.999 |
| Housing Bore (MM) | 76.170 |
| Inside Diameter | 2.180 |
| Inside Diameter | 55.370 |
| Material | Nitrile |
| Outside Diameter | 3.004 |
| Outside Diameter | 76.300 |
| Outside Diameter (Inch) | 3.004 |
| Outside Diameter (mm) | 76.300 |
| Part Description | Oil Seal |
| Redicoat | Yes |
| Series | 4000 |
| Shaft (Inch) | 2.180 |
| Shaft (MM) | 55.370 |
| Type | 282 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.250 |
| Width (mm) | 6.350 |
This part fits 148 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2002 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 2002 | Chevrolet | Express 3500 | Front Inner | ||
| 2002 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 2002 | GMC | Savana 3500 | Front Inner | ||
| 2001 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 2001 | Chevrolet | Express 3500 | Front Inner | ||
| 2001 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 2001 | GMC | Savana 3500 | Front Inner | ||
| 2000 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 2000 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 2000 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 2000 | Chevrolet | Express 3500 | Front Inner | ||
| 2000 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 2000 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 2000 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 2000 | GMC | Savana 3500 | Front Inner | ||
| 1999 | Chevrolet | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | Chevrolet | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1999 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1999 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1999 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | Chevrolet | Express 3500 | Front Inner | ||
| 1999 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1999 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1999 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1999 | GMC | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | GMC | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1999 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1999 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1999 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1999 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 1999 | GMC | Savana 3500 | Front Inner | ||
| 1998 | Chevrolet | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | Chevrolet | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1998 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1998 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1998 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | Chevrolet | Express 3500 | Front Inner | ||
| 1998 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1998 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1998 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1998 | GMC | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | GMC | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1998 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1998 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1998 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1998 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 1998 | GMC | Savana 3500 | Front Inner | ||
| 1997 | Chevrolet | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | Chevrolet | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1997 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1997 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1997 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | Chevrolet | Express 3500 | Front Inner | ||
| 1997 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1997 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1997 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1997 | GMC | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | GMC | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1997 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1997 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1997 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1997 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 1997 | GMC | Savana 3500 | Front Inner | ||
| 1996 | Chevrolet | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | Chevrolet | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1996 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1996 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1996 | Chevrolet | Express 2500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | Chevrolet | Express 3500 | Front Inner | ||
| 1996 | Chevrolet | G30 | Front Inner | ||
| 1996 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1996 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1996 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1996 | GMC | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | GMC | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1996 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1996 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1996 | GMC | G3500 | Front Inner | ||
| 1996 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1996 | GMC | Savana 2500 | Front Inner | with Heavy Duty Brakes | |
| 1996 | GMC | Savana 3500 | Front Inner | ||
| 1995 | Chevrolet | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1995 | Chevrolet | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1995 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1995 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1995 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1995 | Chevrolet | G20 | Front Inner | with Heavy Duty Brakes | |
| 1995 | Chevrolet | G30 | Front Inner | ||
| 1995 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1995 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1995 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1995 | GMC | C1500 | Front Inner | with Heavy Duty Brakes | |
| 1995 | GMC | C1500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1995 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1995 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1995 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1995 | GMC | G2500 | Front Inner | with Heavy Duty Brakes | |
| 1995 | GMC | G3500 | Front Inner | ||
| 1995 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1994 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1994 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1994 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1994 | Chevrolet | G20 | Front Inner | with Heavy Duty Brakes | |
| 1994 | Chevrolet | G30 | Front Inner | ||
| 1994 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1994 | Dodge | Ram 2500 | RWD | Front Inner | |
| 1994 | Dodge | Ram 3500 | Front Inner | Single Rear Wheel | |
| 1994 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1994 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1994 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1994 | GMC | G2500 | Front Inner | with Heavy Duty Brakes | |
| 1994 | GMC | G3500 | Front Inner | ||
| 1994 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1993 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1993 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1993 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1993 | Chevrolet | G20 | Front Inner | with Heavy Duty Brakes | |
| 1993 | Chevrolet | G30 | Front Inner | ||
| 1993 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1993 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1993 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1993 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1993 | GMC | G2500 | Front Inner | with Heavy Duty Brakes | |
| 1993 | GMC | G3500 | Front Inner | ||
| 1993 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1992 | Chevrolet | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1992 | Chevrolet | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1992 | Chevrolet | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1992 | Chevrolet | G20 | Front Inner | with Heavy Duty Brakes | |
| 1992 | Chevrolet | G30 | Front Inner | ||
| 1992 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1992 | GMC | C2500 | Front Inner | with Heavy Duty Brakes | |
| 1992 | GMC | C2500 Suburban | Front Inner | with Heavy Duty Brakes | |
| 1992 | GMC | C3500 | Front Inner | Except 15000 (lb) Drive Axle | |
| 1992 | GMC | G2500 | Front Inner | with Heavy Duty Brakes | |
| 1992 | GMC | G3500 | Front Inner | ||
| 1992 | GMC | P3500 | Front Inner | with I-Beam Axle | |
| 1991 | Chevrolet | P30 | Front Inner | Except I-Beam Axle | |
| 1991 | GMC | P3500 | Front Inner | with I-Beam Axle |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
156516611565517221756290-268417.660084321769474052007661
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.