SKF 12400 Drive Axle Shaft Seal - Front Right Inner

SKF 12400 Drive Axle Shaft Seal for Front Right Inner Applications

SKF 12400 is a drive axle shaft seal built for the front right inner position on select GM and Saab vehicles. With a 1.240 shaft diameter, 2.958 outside diameter, and 0.504 width, this seal is sized for precise sealing at the axle interface.

Key Features

• Drive axle shaft seal for the front right inner position
• 1.240 shaft diameter for application-specific fitment
• 2.958 outside diameter for proper housing engagement
• 0.504 width for compact sealing dimensions
• SKF part number 12400 for catalog and service reference
• Cross-reference: 12471617 for the same application

Detailed Description

SKF 12400 is engineered as a sealing component for driveline and axle service where lubricant retention and contamination control are critical. SKF has a long history in seal design, and this part reflects that focus with premium material selection and application-specific dimensions. It is a direct-fit style drive axle shaft seal for vehicles including Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Buick Rainier, Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, and Oldsmobile Bravada in the front right inner position. If you are replacing a worn axle seal on a Chevrolet Trailblazer or GMC Envoy, SKF 12400 provides the dimensional match needed for service work.

What It Helps Solve

• Gear oil or lubricant seepage at the axle shaft opening
• Contamination entering the driveline through a worn seal
• Noise or driveline wear caused by low lubricant levels
• Seal deterioration from age, heat, and road exposure
• Service issues on front right inner axle seal replacement jobs

Installation Notes and Tips

Confirm the shaft diameter, outside diameter, and width before installation. Inspect the axle shaft, housing bore, and sealing surface for wear or scoring, and clean the area thoroughly before fitting the new seal. For best results, install the seal squarely to avoid distortion and verify the front right inner position matches the vehicle application listed for your Chevrolet Trailblazer, GMC Envoy, or related model.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and high-quality production standards. The brand’s seal engineering heritage dates back to the first integrated shaft seal, and SKF 12400 is built to maintain lubricant retention and help keep contaminants out in demanding driveline service.