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National 223255 Manual Transmission Input Shaft Seal - Front, Front Inner or RearOE Quality 60-Day Returns
Part #: 223255

National 223255 Manual Transmission Input Shaft Seal - Front, Front Inner or Rear

Rear
96 vehicles fit this part
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Fitment: Saab, Chevrolet, GMC, Mitsubishi, Oldsmobile, and Dodge, 9-2X, Astro, Blazer, S10, Jimmy, Safari, Sonoma, Montero, Bravada, S10 Blazer, Mighty Max, Ram 50, Typhoon, S15 Jimmy, Syclone, S15, and Raider
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Not what you need? See all Manual Transmission Input Shaft Seal options

Overview of National 223255 Manual Transmission Input Shaft Seal

The National 223255 manual transmission input shaft seal is engineered to provide reliable sealing performance for a range of vehicles including Chevrolet, Dodge, GMC, Mitsubishi, Oldsmobile, and Saab models. Designed with nitrile material, this oil seal ensures durability and effective protection against leaks in your transmission system.

  • Inside diameter: 1.260 inches (32.000 mm)
  • Outside diameter: 2.058 inches (52.280 mm)
  • Thickness/width: 0.276 inches (7.000 mm)
  • Sealing material: Nitrile for resistance to oil and wear
  • Compatible with multiple vehicle makes and models

Technical Specifications and Material Details

This manual transmission input shaft seal from National is part of the 220000 series and features a 35-type design. The seal’s nitrile construction offers excellent resistance to petroleum-based fluids and high temperatures commonly found in transmission environments. With a housing bore diameter of 2.047 inches (52.000 mm), it fits precisely to maintain a secure seal around the input shaft, which measures 1.260 inches (32.000 mm) in diameter. The 0.276 inch (7.000 mm) thickness ensures durability while maintaining flexibility for proper installation and sealing.

Compatible Vehicles and Applications

This input shaft seal is compatible with a variety of manual transmission vehicles, including Chevrolet Astro, Blazer, S10, S10 Blazer, S15, and S15 Jimmy; Dodge Ram 50; GMC Bravada, Jimmy, Safari, and Sonoma; Mitsubishi Mighty Max, Montero, and Raider; Oldsmobile; and Saab 9-2X. The National 223255 seal is designed to meet the specific sealing requirements of these models, helping maintain transmission integrity and performance.

Common Issues Addressed by the National 223255 Seal

  • Prevents transmission fluid leaks around the input shaft
  • Reduces contamination ingress into the transmission system
  • Minimizes wear on transmission components by maintaining proper lubrication
  • Helps avoid costly transmission repairs due to seal failure
  • Maintains consistent transmission performance under varying operating conditions

Installation Notes and Tips

When installing the National 223255 manual transmission input shaft seal, ensure the transmission housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the shaft diameter matches the seal’s inside diameter of 1.260 inches (32.000 mm) for proper fitment. Lubricate the seal lip lightly with transmission fluid before installation to reduce initial wear and facilitate smooth operation.

Quality Assurance and Warranty Information

National manufactures the 223255 input shaft seal to meet industry standards for durability and performance. The nitrile material and precise dimensions ensure reliable sealing in manual transmission applications. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, providing confidence in the product’s quality and longevity.

BrandNational
Part Number223255
Housing Bore (Inch)2.047
Housing Bore (MM)52.000
Inside Diameter1.260
Inside Diameter32.000
MaterialNitrile
Outside Diameter2.058
Outside Diameter52.280
Outside Diameter (Inch)2.058
Outside Diameter (mm)52.280
Part DescriptionOil Seal
Sealing MaterialNitrile
Series220000
Shaft (Inch)1.260
Shaft (MM)32.000
Thickness0.276
Thickness7.000
Type35
Unit of DimensionMetric
Width (Inch)0.276
Width (mm)7.000

This part fits 96 vehicles. Search below:

YearMakeModelDrive TypeTransmissionPositionNotes
2006Saab9-2XRearwith Subaru R160 Differential; with Posi-Traction; 2.047 (in) Inside Diameter
2005Saab9-2XRearwith Subaru R160 Differential; with Posi-Traction; 2.047 (in) Inside Diameter
1996ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1996MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1996OldsmobileBravadaFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995GMCJimmyAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1995MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1994ChevroletAstroAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994GMCJimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994GMCSafariAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994GMCSonoma4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1994MitsubishiMighty MaxManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1994MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1994OldsmobileBravadaFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993ChevroletAstroAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993DodgeRam 50ManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1993GMCJimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993GMCSafariAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993GMCSonoma4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1993MitsubishiMighty MaxManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1993MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1993OldsmobileBravadaFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992ChevroletAstroAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992DodgeRam 50ManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1992GMCJimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992GMCSafariAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992GMCSonoma4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1992MitsubishiMighty MaxManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1992MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1992OldsmobileBravadaFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991ChevroletAstroAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991DodgeRam 50ManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1991GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991GMCSafariAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991GMCSonoma4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1991MitsubishiMighty MaxManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1991MitsubishiMonteroManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1991OldsmobileBravadaFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990ChevroletAstroAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990DodgeRam 50ManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1990GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990GMCSafariAWDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1990MitsubishiMighty MaxManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1989ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1989ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1989DodgeRaiderManualN/Awith Mitsubishi M1S5 Power Take-Off (PTO)
1989GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1989GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1988ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1988ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1988GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1988GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1987ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1987ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1987GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1987GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1986ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1986ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1986GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1986GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1985ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1985ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1985GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1985GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1984ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1984ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1984GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1984GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1983ChevroletS104WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1983ChevroletS10 Blazer4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1983GMCS154WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.
1983GMCS15 Jimmy4WDFrontManual Transmission Input Shaft Seal fits with 7.25in Ring Gear, GMC Axle, Carrier Unit Independent.

* 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:

052-140112494140395772232554795966635ES290L816418PR8151

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.