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National Bearings 3945 | Front Engine Crankshaft Seal

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$9.00
Part Number
NAT3945
Condition:
New
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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.

BRAND: National

FEATURES:

  • AM General Hummer Eng 01-92| Avanti II Eng 76-73| Chevrolet Bel Air Eng 75-65| Biscayne Eng 72-65| Blazer Eng 94-73| Brookwood Eng 72-69| C10 Eng 86-75| C10 Pickup Eng 74-68| C10 Suburban Eng 86-68| C1500 Eng 98-88| C1500 Suburban Eng
  • Crankshaft Seal
  • Delivers quality and reliable performance for every type of repair
  • Design type: spring loaded| single-lip
  • National 3945 Crankshaft Seal
  • Crankshaft Seal
  • Low swell in hydrocarbon fluids
  • Resistance to EP lubricants
  • Temperature range: -20°F to 300°F / -29°C to 49°C

SPECIFICS:

Helix TypeBi-Directional Lip Design
Housing Bore (Inch)3.000
Housing Bore (MM)76.200
Inside Diameter59.180
Inside Diameter2.330
MaterialPolyacrylate
Outside Diameter76.330
Outside Diameter3.005
Outside Diameter (Inch)3.005
Outside Diameter (MM)76.330
Part DescriptionOil Seal
RedicoatYes
Series3000
Shaft (Inch)2.330
Shaft (MM)59.180
Thickness10.160
Thickness0.400
Type48
Unit of DimensionInch
Width (Inch)0.400
Width (MM)10.160

INTERCHANGE:

  • Mopar: T3839
  • AM General: 5743285
  • American Motors: J5365082
  • ACDelco: 12303932
  • SKF: 23300
  • Timken: 3945
  • ACDelco: 296-01
  • AM General: 05742152
  • General Motors: 3860095
  • Victor Reinz: 47572
  • American Motors: 5365082
  • General Motors: 10191642
  • Victor Reinz: 48129
  • General Motors: 0704-D104
  • General Motors: 03860095
  • Victor Reinz: 46467
  • ACDelco: 29533
  • General Motors: 12303932
  • AM General: 5742152
  • General Motors: 10191640
  • Chicago Rawhide: 23300
  • AM General: 05743285
  • General Motors: 23500286
  • ACDelco: 296-25
  • Timken: 332271N

APPLICATIONS:

  • 1983-1995 Chevrolet G20 - Position: Front
  • 1996-2002 Chevrolet Express 3500 - Position: Front
  • 1992-1999 GMC C2500 Suburban - Position: Front
  • 1968-1974 Chevrolet C30 Pickup - Position: Front
  • 1995-1999 GMC K1500 Suburban - Position: Front
  • 1980-1980 Chevrolet K10 - Position: Front
  • 1969-1972 Chevrolet Kingswood - Position: Front
  • 1965-1974 Chevrolet Corvette - Position: Front
  • 1966-1975 Chevrolet El Camino - Position: Front
  • 1977-1977 Chevrolet K30 - Position: Front
  • 1995-1999 Chevrolet Tahoe - Position: Front
  • 1982-1991 GMC Jimmy - Position: Front
  • 1988-1998 GMC K1500 - Position: Front
  • 1965-1967 Chevrolet Malibu - Position: Front
  • 1973-1973 Chevrolet P10 Van - Position: Front
  • 1969-1970 Chevrolet Estate - Position: Front
  • 1999-2000 Workhorse P32 - Position: Front
  • 1988-2000 GMC K2500 - Position: Front
  • 1976-1976 GMC K15 - Position: Front
  • 1988-1997 GMC C1500 - Position: Front
  • 1963-1963 Chevrolet Impala - Position: Front
  • 1982-1986 GMC C1500 Suburban - Position: Front
  • 1979-1986 GMC C2500 Suburban - Position: Front
  • 1968-1968 Chevrolet Chevy II - Position: Front
  • 1965-1973 Chevrolet Chevelle - Position: Front
  • 1968-1974 GMC K25/K2500 Pickup - Position: Front
  • 1987-1988 Chevrolet V10 Suburban - Position: Front
  • 1987-1991 GMC R1500 Suburban - Position: Front
  • 1976-1976 Chevrolet P20 - Position: Front
  • 1970-1971 Chevrolet P20 Van - Position: Front
  • 1988-2000 GMC K3500 - Position: Front
  • 1973-1974 Chevrolet G30 Van - Position: Front
  • 2002-2004 Hummer H1 - Position: Front
  • 1987-1987 Chevrolet V20 - Position: Front
  • 1975-1976 Chevrolet G30 - Position: Front
  • 1970-1974 Chevrolet P30 Van - Position: Front
  • 1965-1969 Pontiac Beaumont - Position: Front
  • 2002-2003 Workhorse FasTrack FT1802 - Position: Front
  • 1975-1999 Chevrolet P30 - Position: Front
  • 1963-1963 Chevrolet Biscayne - Position: Front
  • 1987-1988 Chevrolet R20 - Position: Front
  • 1975-1978 GMC C35 - Position: Front
  • 1992-1999 GMC K2500 Suburban - Position: Front
  • 1971-1975 GMC Sprint - Position: Front
  • 1968-1974 Chevrolet C10 Pickup - Position: Front
  • 1973-1975 Chevrolet Malibu - Position: Front
  • 1982-1986 Chevrolet K5 Blazer - Position: Front
  • 1996-2002 Chevrolet Express 2500 - Position: Front
  • 1987-1991 GMC V1500 Suburban - Position: Front
  • 1973-1974 GMC G35/G3500 Van - Position: Front
  • 1987-1987 Chevrolet R10 - Position: Front
  • 1973-1975 Chevrolet Laguna - Position: Front
  • 1968-1971 Pontiac Acadian - Position: Front
  • 1997-1998 GMC B7 - Position: Front
  • 1969-1974 Iso Grifo - Position: Front
  • 1991-2002 Chevrolet C3500HD - Position: Front
  • 1982-1986 Chevrolet K10 - Position: Front
  • 1996-2002 GMC Savana 3500 - Position: Front
  • 1982-1989 GMC P2500 - Position: Front
  • 1982-1986 Chevrolet K20 Suburban - Position: Front
  • 1982-1986 GMC K2500 - Position: Front
  • 1968-1974 GMC C15/C1500 Suburban - Position: Front
  • 1992-1999 Chevrolet K2500 Suburban - Position: Front
  • 1973-1974 Chevrolet Blazer - Position: Front
  • 1983-1996 GMC G3500 - Position: Front
  • 1975-1978 GMC P35 - Position: Front
  • 1970-1974 GMC K35/K3500 Pickup - Position: Front
  • 1967-1972 Chevrolet Camaro - Position: Front
  • 1970-1971 GMC P35/P3500 Van - Position: Front
  • 1988-2000 GMC C3500 - Position: Front
  • 1982-1986 Chevrolet C10 - Position: Front
  • 1976-1978 Chevrolet K20 - Position: Front
  • 1979-1980 GMC C1500 Suburban - Position: Front
  • 1968-1974 GMC K15/K1500 Suburban - Position: Front
  • 1992-2001 AM General Hummer - Position: Front
  • 1995-1999 GMC C1500 Suburban - Position: Front
  • 1987-1987 Chevrolet V10 - Position: Front
  • 1982-1986 GMC K2500 Suburban - Position: Front
  • 1968-1974 Chevrolet K20 Suburban - Position: Front
  • 1976-1978 Chevrolet K5 Blazer - Position: Front
  • 1997-1998 Chevrolet B7 - Position: Front
  • 1965-1972 Chevrolet Biscayne - Position: Front
  • 1980-1980 GMC K1500 - Position: Front
  • 1976-1976 GMC G35 - Position: Front
  • 1973-1976 Avanti II - Position: Front
  • 1968-1974 Chevrolet K20 Pickup - Position: Front
  • 1976-1976 Chevrolet K10 - Position: Front
  • 1979-1986 GMC C3500 - Position: Front
  • 1987-1991 GMC R2500 Suburban - Position: Front
  • 1979-1999 GMC P3500 - Position: Front
  • 1989-1989 Chevrolet R2500 - Position: Front
  • 1969-1972 Chevrolet Nova - Position: Front
  • 1987-1988 Chevrolet V20 Suburban - Position: Front
  • 1983-1995 GMC G2500 - Position: Front
  • 1992-1999 Chevrolet C2500 Suburban - Position: Front
  • 1982-1986 Chevrolet C10 Suburban - Position: Front
  • 1976-1976 GMC Jimmy - Position: Front
  • 1968-1974 GMC C35/C3500 Pickup - Position: Front
  • 1963-1963 Chevrolet Bel Air - Position: Front
  • 1966-1970 Pontiac Laurentian - Position: Front
  • 1982-1986 Chevrolet K10 Suburban - Position: Front
  • 1987-1991 Chevrolet Blazer - Position: Front
  • 1989-1991 Chevrolet V2500 Suburban - Position: Front
  • 1969-1972 Chevrolet Brookwood - Position: Front
  • 1968-1986 Chevrolet C20 Suburban - Position: Front
  • 1975-1978 GMC C25 Suburban - Position: Front
  • 1975-1980 Chevrolet C10 - Position: Front
  • 1989-1991 Chevrolet V3500 - Position: Front
  • 1995-1999 Chevrolet C1500 Suburban - Position: Front
  • 1965-1976 Chevrolet Impala - Position: Front
  • 1965-1974 Chevrolet Bel Air - Position: Front
  • 1988-2000 Chevrolet C3500 - Position: Front
  • 1976-1976 Chevrolet G20 - Position: Front
  • 1976-1978 GMC K25 - Position: Front
  • 1983-1996 Chevrolet G30 - Position: Front
  • 1975-1986 Chevrolet C20 - Position: Front
  • 1968-1974 Chevrolet K10 Suburban - Position: Front
  • 1979-1980 GMC C1500 - Position: Front
  • 2002-2005 Workhorse FasTrack FT1801 - Position: Front
  • 1975-1978 GMC C25 - Position: Front
  • 1976-1976 Chevrolet Caprice - Position: Front
  • 1988-1998 Chevrolet K1500 - Position: Front
  • 1975-1978 GMC C15 Suburban - Position: Front
  • 1979-1986 GMC C2500 - Position: Front
  • 1976-1977 GMC K25 Suburban - Position: Front
  • 1982-1986 GMC C1500 - Position: Front
  • 1987-1988 Chevrolet R30 - Position: Front
  • 1968-1974 Chevrolet K30 Pickup - Position: Front
  • 1982-1986 Chevrolet K20 - Position: Front
  • 1972-1979 Excalibur Phaeton - Position: Front
  • 1973-1974 Chevrolet G20 Van - Position: Front
  • 1996-2002 GMC Savana 2500 - Position: Front
  • 1970-1975 Chevrolet Monte Carlo - Position: Front
  • 1995-1999 Chevrolet K1500 Suburban - Position: Front
  • 1987-1991 GMC V3500 - Position: Front
  • 1966-1970 Pontiac Parisienne - Position: Front
  • 1980-1986 Chevrolet K30 - Position: Front
  • 1989-1991 Chevrolet V1500 Suburban - Position: Front
  • 1968-1974 GMC K15/K1500 Pickup - Position: Front
  • 1987-1991 GMC R3500 - Position: Front
  • 1970-1971 GMC P25/P2500 Van - Position: Front
  • 1966-1974 Chevrolet Caprice - Position: Front
  • 1982-1989 Chevrolet P20 - Position: Front
  • 1968-1974 GMC C15/C1500 Pickup - Position: Front
  • 1979-1979 GMC P1500 - Position: Front
  • 1989-1991 Chevrolet R1500 Suburban - Position: Front
  • 1979-1979 Chevrolet P20 - Position: Front
  • 1988-1998 Chevrolet C1500 - Position: Front
  • 1968-1980 Chevrolet C10 Suburban - Position: Front
  • 1994-1997 GMC Yukon - Position: Front
  • 1973-1974 GMC Jimmy - Position: Front
  • 1988-2000 GMC C2500 - Position: Front
  • 1994-1994 Chevrolet Blazer - Position: Front
  • 1987-1988 Chevrolet V30 - Position: Front
  • 1968-1974 Chevrolet C20 Pickup - Position: Front
  • 1988-2000 Chevrolet K2500 - Position: Front
  • 1989-1991 Chevrolet R2500 Suburban - Position: Front
  • 1987-1988 Chevrolet R10 Suburban - Position: Front
  • 1973-1973 Chevrolet P20 Van - Position: Front
  • 1979-1986 GMC K3500 - Position: Front
  • 1973-1974 GMC P35/P3500 Van - Position: Front
  • 1968-1974 GMC C25/C2500 Pickup - Position: Front
  • 1982-1986 GMC K1500 Suburban - Position: Front
  • 1987-1987 GMC R1500 - Position: Front
  • 1999-2005 Workhorse P42 - Position: Front
  • 1987-1988 Chevrolet R20 Suburban - Position: Front
  • 1989-1991 Chevrolet R3500 - Position: Front
  • 1975-1976 GMC G25 - Position: Front
  • 1987-1987 GMC V2500 - Position: Front
  • 1987-1991 GMC V2500 Suburban - Position: Front
  • 1968-1974 GMC C25/C2500 Suburban - Position: Front
  • 1987-1989 GMC R2500 - Position: Front
  • 1988-2000 Chevrolet K3500 - Position: Front
  • 1991-2002 GMC C3500HD - Position: Front
  • 1975-1978 GMC C15 - Position: Front
  • 1969-1972 Chevrolet Townsman - Position: Front
  • 1975-1986 Chevrolet C30 - Position: Front
  • 1988-2000 Chevrolet C2500 - Position: Front
  • 1982-1986 GMC K1500 - Position: Front
  • 1968-1974 GMC K25/K2500 Suburban - Position: Front
  • 1973-1974 Chevrolet G10 Van - Position: Front
  • 1965-1970 Pontiac Strato-Chief - Position: Front
  • 1968-1974 Chevrolet K10 Pickup - Position: Front
  • 1987-1987 GMC V1500 - Position: Front

Product type:
Aftermarket



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