SKF 25661 Automatic Transmission Seal - Rear

Reliable Automatic Transmission Seal for Chevrolet and Ford Trucks

The SKF 25661 automatic transmission seal is engineered to provide durable sealing performance for heavy-duty trucks. Designed specifically for models like Chevrolet Silverado 2500 HD and Ford F-350, this seal ensures optimal transmission function by preventing fluid leaks and contamination.

• Width: 0.469 inches for precise fitment
• Outside Diameter: 3.628 inches to match OEM specifications
• Shaft Diameter: 2.563 inches for secure sealing
• Sealing Surface Type: Polyacrylate for enhanced durability and resistance
• Compatible with Chevrolet, Ford, GMC, and Hummer heavy-duty truck models

Technical Details and Material Specifications

The SKF 25661 automatic transmission seal features a polyacrylate sealing surface, which offers excellent resistance to heat and transmission fluids. Its dimensions—0.469 inch width, 3.628 inch outside diameter, and 2.563 inch shaft diameter—are designed to meet the exacting standards required for reliable sealing in automatic transmissions. This precision ensures a tight fit that minimizes the risk of leaks and extends the service life of the transmission components.

Compatible Vehicles and Applications

This transmission seal is compatible with a range of heavy-duty trucks, including Chevrolet Silverado 2500 HD Classic, Silverado 3500 HD, Ford F-250, F-350, GMC Sierra 2500 HD, Sierra 3500 Classic, and Hummer H1 models. The SKF 25661 is ideal for use in automatic transmission systems where maintaining fluid integrity is critical for performance and longevity.

• Prevents transmission fluid leaks
• Reduces contamination from dirt and debris
• Maintains hydraulic pressure within the transmission
• Helps avoid premature transmission wear
• Supports smooth shifting and overall transmission reliability

Installation Notes and Tips

When installing the SKF 25661 automatic transmission seal, ensure the shaft and bore surfaces are clean and free of debris. Lubricate the seal lip with transmission fluid before installation to prevent damage. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal dimensions match the OEM specifications for your Chevrolet Silverado 2500 HD or Ford F-350 model to ensure proper fitment.

Quality Assurance and Warranty Information

SKF manufactures the 25661 transmission seal to meet stringent quality standards, ensuring reliable performance in demanding automotive applications. While specific warranty details may vary, SKF products typically come with a limited warranty against manufacturing defects. This seal is produced with high-quality materials and precision engineering to support long-term durability in Chevrolet, Ford, GMC, and Hummer heavy-duty trucks.