Elring 996.840 Differential Seal

Mercedes-Benz Differential Seal for Front Right Applications

Elring 996.840 is a radial shaft differential seal built for front right driveline sealing on a wide range of Mercedes-Benz models. With ACM (polyacrylate) construction and precise OE-style dimensions, it is specified for vehicles that need a reliable seal at the differential output area.

This Elring differential seal, part number 996.840, matches the size and design requirements used across many Mercedes-Benz A-Class, C-Class, E-Class, GLA, GLB, GLC, CLS, S-Class, and AMG applications.

Key Features

• Brand: Elring
• Part number: 996.840
• Category: Differential Seal
• Material: ACM (Polyacrylate)
• Inside diameter: 38.0 mm
• Outside diameter: 56.0 mm
• Height: 8 mm
• Additional height: 12 mm
• Radial shaft seal design: AW/BS
• Front right fitment across select Mercedes-Benz driveline applications

Detailed Description

Elring 996.840 is a differential seal engineered for front right placement on confirmed Mercedes-Benz applications. The ACM (polyacrylate) sealing material is used for dependable resistance in driveline sealing environments, while the AW/BS radial shaft seal design supports a precise fit at the shaft interface. Dimensions of 38.0 mm inside diameter, 56.0 mm outside diameter, and 8 mm height help ensure the seal matches the required OE-style specification.

Compatible Mercedes-Benz applications include 2024 AMG GT 63 S E Performance; 2021-2024 C43 AMG; 2021-2024 S500; 2023-2024 S580e; 2021-2023 A200, A35 AMG, A45 AMG S, AMG GT 43, AMG GT 53, AMG GT 63, AMG GT 63 S, CLA200, CLA45 AMG, CLS450, CLS53 AMG, E450, E53 AMG, E63 AMG S, GLA200, GLA250, GLA35 AMG, GLA45 AMG, GLB200, GLB250, GLB35 AMG, S450L, A220, A250, C300, CLA250, E63 AMG, GLC63 AMG, GLC63 AMG S, S560, and S63 AMG. It also covers earlier Mercedes-Benz models including A180, B180, C350, E350, GLK350, S550, and related variants.

This part cross-references Mercedes-Benz OE number A 013 997 19 46 for the same application.

What This Seal Helps Address

• Gear oil seepage at the differential output seal area
• Fluid loss from a worn or hardened shaft seal
• Contamination entering the differential housing through a damaged seal
• Noise or driveline concerns associated with low lubricant level
• Service replacement for front right differential sealing on listed Mercedes-Benz models

Installation Notes and Tips

Verify the seal dimensions, shaft design, and vehicle application before installation. Clean the sealing surface thoroughly and inspect the shaft for wear, scoring, or corrosion that could affect sealing performance. Proper alignment during installation is important to avoid damaging the lip or distorting the seal body. Confirm front right placement on the vehicle before final assembly.

Quality Assurance

Elring is a recognized OE-focused sealing brand, and this differential seal is built to match the dimensional and design requirements used in Mercedes-Benz driveline service applications.