HomeEngine > Gaskets and Sealing SystemsSKF 21398 Engine Crankshaft Seal - Rear
Part #: 21398

SKF 21398 Engine Crankshaft Seal - Rear

Rear
⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, B4000
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Reliable Engine Crankshaft Seal for Mazda B4000

The SKF 21398 engine crankshaft seal is designed to provide durable sealing performance for your Mazda B4000. Engineered with precision dimensions and a longlife sealing surface, this crankshaft seal helps maintain engine integrity by preventing oil leaks and contamination.

  • Width: 0.472 inches for optimal fit and sealing
  • Outside Diameter: 3.001 inches ensuring proper housing compatibility
  • Shaft Diameter: 2.417 inches matching Mazda B4000 crankshaft specifications
  • Longlife sealing surface type for extended durability
  • Part number 21398 for accurate identification and replacement

Detailed Description of SKF 21398 Crankshaft Seal

This SKF engine crankshaft seal is manufactured to meet the exact specifications required for the Mazda B4000. The 0.472-inch width and 3.001-inch outside diameter ensure a secure fit within the engine housing, while the 2.417-inch shaft diameter matches the crankshaft to prevent oil leakage. The longlife sealing surface type is engineered to withstand the rigors of engine operation, providing reliable sealing over time and reducing the risk of premature wear or failure.

Applications and Common Issues Addressed

  • Prevents oil leaks around the crankshaft area
  • Protects engine components from dirt and contaminants
  • Maintains proper oil pressure within the engine
  • Reduces risk of crankshaft seal wear and damage
  • Ensures smooth engine operation by maintaining seal integrity

Installation Notes and Tips

When installing the SKF 21398 crankshaft seal on your Mazda B4000, ensure the sealing surface and shaft are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal is seated evenly to prevent leaks. Lubricate the sealing surface lightly with engine oil before installation to facilitate proper fit and function.

Quality Assurance and Warranty

SKF is a recognized manufacturer of engine sealing components, known for precision engineering and quality materials. The 21398 crankshaft seal undergoes strict quality control to meet OEM standards. While specific warranty details are not provided, SKF products typically come with manufacturer-backed reliability and support.

BrandSKF
Part Number21398
Width0.472
Outside Diameter3.001
Sealing Surface TypeLonglife
Shaft Diameter2.417

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
2008MazdaB4000Rear
2007MazdaB4000Rear
2006MazdaB4000Rear
2005MazdaB4000Rear
2004MazdaB4000Rear
2003MazdaB4000Rear
2002MazdaB4000Rear
2001MazdaB4000Rear
2000MazdaB4000Rear

* 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:

94TM6701A1

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