SKF 17779A Differential Pinion Seal - Rear

Reliable Rear Axle Pinion Seal for Lexus and Toyota Vehicles

The SKF 17779A Pinion Seal-Rear Axle is engineered to provide a precise fit and dependable sealing performance for select Lexus and Toyota models. Designed to maintain differential integrity, this differential pinion seal helps prevent leaks and contamination in the rear axle assembly.

• Width: 0.433 inches for optimal sealing depth
• Outside Diameter: 2.922 inches ensuring a secure fit
• Shaft Diameter: 1.771 inches matching OEM specifications
• Sealing Surface Type: Polyacrylate for enhanced durability and resistance
• Compatible with Lexus Land Cruiser, LX470, LX570, and Toyota Tundra models

About the SKF Pinion Seal-Rear Axle Product Line

The SKF Pinion Seal-Rear Axle line focuses on high-quality sealing solutions designed specifically for rear axle applications. This product line emphasizes precision dimensions and advanced sealing materials like polyacrylate to ensure long-lasting performance under demanding conditions. The 17779A part number is part of this line, offering a reliable replacement option for maintaining the integrity of your vehicle’s driveline system.

Product Details and Specifications

The SKF 17779A differential pinion seal features a 0.433-inch width that provides the necessary sealing depth to prevent fluid leakage. Its 2.922-inch outside diameter ensures a tight fit within the rear axle housing, while the 1.771-inch shaft diameter matches the pinion shaft precisely. The polyacrylate sealing surface type offers resistance to heat and wear, contributing to the seal’s longevity and effectiveness in harsh operating environments. This part is engineered to meet the exacting standards required for Lexus Land Cruiser, LX470, LX570, and Toyota Tundra rear axle assemblies.

Common Applications and Problem Solving

• Prevents differential oil leaks in rear axle assemblies
• Protects against contamination from dirt and moisture
• Maintains proper lubrication for pinion shaft components
• Reduces risk of premature wear on driveline parts
• Ensures consistent performance in off-road and heavy-duty conditions

Installation Notes and Tips

When installing the SKF 17779A pinion seal, ensure the rear axle housing and pinion shaft are clean and free of debris. Proper alignment is critical to avoid seal damage and ensure effective sealing. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal’s seating depth matches the specified 0.433-inch width for optimal performance. Consult vehicle-specific service manuals for torque specifications and installation procedures.

Quality Assurance and Warranty

SKF manufactures the 17779A pinion seal to meet stringent quality standards, ensuring reliable sealing performance and durability. The use of polyacrylate sealing surfaces reflects SKF’s commitment to material innovation and longevity. While specific warranty details are not provided, SKF products typically come with manufacturer-backed quality assurance to support professional automotive repair and maintenance.