SKF 17387 Manual Transmission Seal - Front or Rear

SKF 17387 Manual Transmission Seal Overview

SKF 17387 is a manual transmission seal built for applications that need controlled sealing at the shaft surface. With a nitrile sealing surface, a 1.750 shaft diameter, 2.506 outside diameter, and 0.313 width, this seal is specified for precise fitment in transmission and PTO-related service points. It is a practical choice for restoring sealing performance on vehicles such as Chevrolet Blazer, Chevrolet K10 Suburban, and GMC Jimmy applications.

Key Features

• Manual transmission seal for transmission sealing system service
• Nitrile sealing surface type for oil-resistant sealing performance
• 1.750 shaft diameter for the specified shaft interface
• 2.506 outside diameter for housing fitment
• 0.313 width for compact installation dimensions
• SKF part number 17387 for direct catalog identification

Detailed Product Description

SKF 17387 is engineered as a shaft seal for manual transmission and related drivetrain sealing applications. SKF has a long history in seal design, and this part reflects that focus with application-specific dimensions and premium material selection. The nitrile sealing surface is suited to sealing lubricant at the shaft interface while helping keep contaminants out of the assembly. This part number 17387 is listed for multiple classic truck and SUV applications, including Chevrolet Blazer, Chevrolet K10 Suburban, Chevrolet K20 Suburban, and GMC Jimmy models with Rockwell Standard T221 PTO reverse idler bearing service points.

This part cross-references Carlson 17387 for the same application.

Vehicle Fitment

• Fits 1969-1972 Chevrolet Blazer, front. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1969-1972 Chevrolet Blazer, rear. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1967-1972 Chevrolet K10 Suburban, front. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1967-1972 Chevrolet K10 Suburban, rear. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1967-1972 Chevrolet K20 Suburban, front. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1967-1972 Chevrolet K20 Suburban, rear. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1970-1972 GMC Jimmy, front. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1970-1972 GMC Jimmy, rear. Fitment: Rockwell Standard T221, Power Take Off (PTO) Reverse Idler Bearing.
• Fits 1953-1955 Chevrolet Corvette, rear.

Common Problems This Seal Helps Address

• Transmission fluid seepage at the shaft seal area
• Contamination entering the sealed drivetrain opening
• Wear-related leakage around the manual transmission seal surface
• Service issues on Rockwell Standard T221 PTO reverse idler bearing locations
• Seal replacement needs during transmission or PTO maintenance

Installation Notes and Tips

Verify shaft diameter, outside diameter, and width before installation to confirm the seal matches the housing and shaft dimensions. Inspect the shaft surface for scoring or wear, since seal performance depends on a clean, smooth contact area. For Chevrolet Blazer, Chevrolet K10 Suburban, Chevrolet K20 Suburban, and GMC Jimmy applications, confirm the Rockwell Standard T221 PTO reverse idler bearing configuration before ordering. Use proper installation practices to avoid damaging the nitrile sealing lip during assembly.

Quality Assurance

SKF designs and manufactures seals to specific application requirements using materials selected for the operating environment. Part number 17387 reflects SKF’s long-standing seal engineering focus and is built for dependable sealing performance in manual transmission service.