Elring 430.020 Differential Seal - Front or Rear

Elring Differential Seal 430.020

Elring 430.020 is a differential seal for driveline and axle sealing applications, built with ACM (polyacrylate) material and a dust lip for added protection at the sealing edge. With an 8.0 mm height, 48.0 mm inside diameter, and 68.0 mm outside diameter, it is specified for transfer case and propshaft sealing points on select Audi and Mercedes-Benz vehicles.

Key Features

• ACM (polyacrylate) sealing material for driveline service
• 48.0 mm inside diameter and 68.0 mm outside diameter
• 8.0 mm height for the listed application dimensions
• Dust cover with dust lip to help protect the seal surface
• Radial shaft seal design: AW/BS
• Swirl type: LD, left-hand twist

Detailed Description

This Elring differential seal is engineered for rear propshaft and transfer case sealing locations where the shaft seal must retain lubricant and resist contamination. It is listed for a wide range of Audi Q3, Audi TT Quattro, Audi RS Q3, Volkswagen Tiguan, Volkswagen Atlas, and Mercedes-Benz applications, including several models with transfer case propshaft positions. Part number 430.020 is also cross-referenced to 02D 525 596 C for the same application.

Compatible With 2015-2018 Audi Q3, rear propshaft at transfer case; 2011-2014 Audi TT Quattro, rear propshaft at transfer case; 2006-2009 Mercedes-Benz E350, front propshaft at transfer case; and other listed Audi and Mercedes-Benz driveline applications. The seal dimensions and left-hand twist design are important for matching the original sealing geometry during service.

Common Problems This Seal Can Address

• Gear oil seepage at the transfer case or propshaft seal area
• Contamination entering the driveline sealing surface
• Wear-related leakage from an aging radial shaft seal
• Noise or driveline service concerns tied to low lubricant level
• Seal replacement during transfer case or propshaft maintenance

Installation Notes and Tips

Verify the seal dimensions, swirl type, and fitting position before installation. Clean the shaft and housing thoroughly, inspect for scoring or wear, and install the seal squarely to avoid damaging the dust lip. Confirm whether the vehicle uses the rear propshaft at the transfer case or another listed position, since fitment varies by model and year. Fits 2024-2000 Audi and Mercedes-Benz applications only where the listed dimensions and position match.

Quality Assurance

Elring is a recognized OE sealing brand, and this part is built to the listed dimensional and design specifications for the stated applications. Part number 430.020 is intended for direct replacement use where the original seal matches the provided measurements and swirl design.