TOYOTA 90311-38047 Differential Input Shaft Oil Seal

This genuine Toyota differential input shaft oil seal (radial shaft seal) is a premium quality, original part designed to ensure reliable, leak-free operation of the drivetrain. Positioned at the input shaft (pinion shaft), this seal retains the gear oil necessary for differential lubrication while preventing external contaminants such as dust, moisture, and road dirt from entering the assembly.

Technical Features and Functions:

• High-Quality Material: Made from a specialized elastomer (rubber) compound resistant to high operating temperatures, mechanical friction, and the aggressive additives found in modern gear oils.
• TYPE T OI Design: Radial shaft seal engineered with dedicated sealing and dust lips, providing optimal radial tension against the rotating shaft to minimize wear.
• Long Service Life: Original OEM manufacturing standards guarantee precise fitment and durability matching factory specifications.

Typical Symptoms of Wear or Failure:

• Oil leaks or oil mist appearing at the differential input shaft (at the driveshaft/propeller shaft connection point).
• Increased drivetrain noise (humming, whining, or grinding sounds while driving) caused by low differential oil levels.
• Deterioration, cracking, hardening, or physical damage to the sealing lip due to high mileage.

Product Specifications:

• Manufacturer: TOYOTA (Original Equipment Manufacturer)
• Genuine Part Number (SKU): 90311-38047
• Alternative / OEM Reference Numbers: 90311-38035, 9031138035
• Part Designation: Differential Input Shaft Oil Seal (SEAL, TYPE T OI)