SKF 15525 Manual Transmission Main Shaft Pilot Seal - Front or Rear

SKF Manual Transmission Main Shaft Pilot Seal

SKF 15525 is a manual transmission main shaft pilot seal built for controlled sealing performance in drivetrain applications. It uses a LongLife sealing surface type and precise dimensions to help maintain the seal between rotating components and surrounding fluids.

Key Features

• Manual transmission main shaft pilot seal for transmission sealing applications
• LongLife sealing surface type for durable contact performance
• Width: 0.630 in.
• Outside diameter: 3.165 in.
• Shaft diameter: 1.552 in.
• SKF part number 15525 for direct identification

Product Details

SKF has a long history in seal engineering, beginning with the first integrated shaft seal and continuing with modern bonding and material techniques. This seal is manufactured to specific design requirements using premium materials so it can maintain the correct sealing properties for the application and operating environment. In Jeep TJ and Jeep Wrangler drivetrain service, as well as Ford Excursion and Jeep Grand Cherokee front applications, the SKF 15525 helps maintain proper sealing where shaft movement and lubricant retention matter. This part cross-references 4434V for the same application.

What It Helps Address

• Transmission fluid seepage at the main shaft pilot seal area
• Contamination entering the sealed drivetrain interface
• Wear-related sealing loss from age and heat exposure
• Leak concerns during manual transmission or axle service
• Noise or drivability issues related to lubricant loss in the sealed area

Installation Notes and Tips

• Verify shaft diameter, outside diameter, and width before installation.
• Inspect the sealing surface for scoring, corrosion, or burrs before fitting the new seal.
• Clean the housing and shaft area thoroughly so the seal seats evenly.
• Confirm vehicle-specific fitment for Jeep TJ, Jeep Wrangler, Jeep Grand Cherokee, Ford Excursion, or Plymouth Laser applications before ordering.
• Use the exact application notes for front, rear, or N/A positions listed in the fitment data.

Quality Assurance

SKF manufactures seals to high quality standards with an emphasis on long service life and dependable sealing performance. The 15525 is engineered for precise fitment and consistent operation in the listed applications.