Elring 446.550 Transmission Filter Kit

Elring 446.550 Transmission Filter Kit

Elring 446.550 is a transmission filter kit for select Mercedes-Benz diesel applications, built for service work where the transmission sump is opened and the filter is replaced. This kit includes an oil sump gasket, making it a practical choice for a complete transmission service on the 1978-1980 Mercedes-Benz 300SD.

Key Features

• Transmission filter kit for automatic transmission service
• Includes oil sump gasket for resealing the transmission pan
• Fits 1978-1980 Mercedes-Benz 300SD, N/A
• Elring part number 446.550 for catalog matching and ordering
• Cross-references Mercedes-Benz 123 270 00 98 and 06445 for the same application

Detailed Description

Elring 446.550 is specified for the Mercedes-Benz 300SD across the 1978, 1979, and 1980 model years. The included oil sump gasket supports transmission service by replacing the sealing surface removed during filter access, helping restore a proper seal after maintenance. For buyers searching for a Mercedes-Benz 300SD transmission filter kit, Elring 446.550 provides a direct service-part match for this application.

Common Service Issues

• Transmission fluid leaks at the pan after filter service
• Restricted fluid flow caused by a worn or contaminated filter
• Service intervals requiring transmission sump removal
• Seepage from an aged gasket during routine maintenance

Installation Notes and Tips

Drain the transmission fluid before removing the sump pan, then replace the filter and install the new oil sump gasket during reassembly. Clean the mating surfaces thoroughly and follow the vehicle service manual for torque specifications and fluid refill procedures. Confirm fitment against the vehicle year and model before installation.

Quality Assurance

Elring is an established OE-focused sealing and service-part brand, and part number 446.550 is cataloged for the listed Mercedes-Benz 300SD applications.