Elring 107.794 Differential Seal

Elring Differential Seal 107.794

Elring 107.794 is a differential seal built for driveline and axle sealing applications where precise shaft sealing matters. It uses NBR (nitrile butadiene rubber) construction with a radial shaft seal design and no dust lip, making it a direct-fit style sealing component for service work on vehicles such as BMW and Mercedes-Benz applications where this seal specification is required.

Key Features

• Part number: 107.794
• Material: NBR (nitrile butadiene rubber)
• Inside diameter: 36.0 mm
• Outside diameter: 54.0 mm
• Height: 7.5 mm
• Radial shaft seal design: A
• Dust cover: without dust lip
• Brand: Elring

Detailed Description

This Elring differential seal is specified for sealing rotating shafts in differential and axle assemblies. The 36.0 mm inside diameter, 54.0 mm outside diameter, and 7.5 mm height provide the dimensional profile needed for applications that call for this exact seal size. NBR rubber is commonly used in drivetrain sealing because it offers dependable resistance for routine service environments, while the radial shaft seal design supports controlled sealing at the shaft interface. This part cross-references Dorman - HELP 81227 for the same application. If you are servicing BMW or Mercedes-Benz driveline components, verify the seal dimensions and design against the original unit before installation.

Common Repair Uses

• Oil seepage at the differential shaft seal area
• Fluid loss from a worn axle or output shaft seal
• Contamination entering the differential housing through a damaged seal
• Noise or driveline issues caused by low lubricant level after seal failure
• Replacement during differential service on BMW and Mercedes-Benz vehicles

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and seal height before installation. Inspect the sealing surface for grooves, corrosion, or debris that could affect sealing performance. Clean the bore thoroughly and install the seal squarely to avoid distortion. Match the radial shaft seal design and dust lip configuration to the original part specification for proper fitment.

Quality Assurance

Elring is a recognized OE-focused sealing brand, and this differential seal is manufactured to dimensional and material specifications used in drivetrain service applications. Part number 107.794 should be matched to the vehicle’s original seal dimensions and application requirements before replacement.