SKF 18759 Differential Pinion Seal - Rear

SKF Differential Pinion Seal for Rear Axle Service

SKF differential pinion seal Part Number 18759 is built for rear axle sealing service on select Isuzu applications. It is designed to retain gear lubricant at the pinion area while helping keep road contaminants out, supporting stable differential operation in daily driving and under load.

Compatible With 1999-2004 Isuzu Rodeo rear, 2001-2003 Isuzu Rodeo Sport rear, and 1999-2000 Isuzu Amigo rear. This SKF 18759 seal is a direct-fit service part for rear differential pinion repair on these vehicles.

Key Features

• Differential pinion seal for rear axle service
• SKF LongLife sealing surface type
• Outside diameter: 3.165 in.
• Shaft diameter: 1.875 in.
• Width: 0.530 in.
• Engineered with premium sealing materials for the application and operating environment
• Part Number: 18759

Detailed Description

SKF has a long history in seal design and manufacturing, and this differential pinion seal reflects that experience with application-specific construction and material selection. The LongLife sealing surface type is intended to maintain consistent contact at the pinion shaft area, where differential oil control is critical. For rear axle service on the Isuzu Rodeo, Rodeo Sport, and Amigo, SKF 18759 provides the dimensions needed for a proper seal interface: 1.875-inch shaft diameter, 3.165-inch outside diameter, and 0.530-inch width.

This part cross-references Monroe Shocks & Struts (e.g., 8971799370) for the same application. Search terms such as rear differential pinion seal for 1999-2004 Isuzu Rodeo, 2001-2003 Isuzu Rodeo Sport rear pinion seal, and 1999-2000 Isuzu Amigo rear axle seal align with this part number 18759.

What It Helps Address

• Gear oil seepage at the rear differential pinion area
• Contamination entering the differential housing through a worn seal
• Noise or driveline concerns related to low lubricant level
• Seal wear from age, heat, and mileage
• Service replacement during rear axle maintenance

Installation Notes and Tips

Inspect the pinion yoke and sealing surface before installation, since groove wear or corrosion can shorten seal life. Clean the housing bore thoroughly and verify the seal dimensions against the removed part before pressing the new seal into place. After installation, check pinion area for leaks and confirm differential lubricant level.

Quality Assurance

SKF designs and manufactures seals to high quality standards, using premium materials selected for the application and its operating environment. The brand’s seal engineering heritage includes early integrated shaft seal development and continued refinement of sealing designs for long service life and safety.