Elring 330.809 Automatic Transmission Input Shaft Seal

Elring 330.809 Automatic Transmission Input Shaft Seal

Elring 330.809 is an automatic transmission input shaft seal built for precise sealing at the transmission input shaft. Made from NBR (nitrile butadiene rubber), it measures 40.0 mm inside diameter, 62.0 mm outside diameter, and 10.0 mm thickness for the specified application.

Compatible with Mercedes-Benz 300D, Mercedes-Benz 300TD, and Mercedes-Benz 300SD applications, this seal is a direct-fit service part for transmission sealing maintenance on classic diesel models.

Key Features

• Part number: 330.809
• Automatic transmission input shaft seal
• NBR (nitrile butadiene rubber) construction
• Inside diameter: 40.0 mm
• Outside diameter: 62.0 mm
• Thickness: 10.0 mm
• Radial shaft seal design: A
• Without dust lip
• Compatible with Mercedes-Benz 300D, 300TD, and 300SD applications

Detailed Description

Elring 330.809 is designed for transmission sealing at the input shaft, where stable sealing performance is critical to keeping automatic transmission fluid contained. The NBR rubber construction provides the material profile commonly used in transmission sealing systems, while the radial shaft seal design supports a precise fit in the specified housing dimensions. This part number 330.809 is listed for 1975-1985 Mercedes-Benz 300D, 1979-1985 Mercedes-Benz 300TD, and 1978-1980 Mercedes-Benz 300SD applications.

This part cross-references OE-style numbers such as 005 997 11 46 and 008 997 92 46 for the same application.

What It Helps Address

• Transmission fluid leakage at the input shaft
• Fluid seepage around the seal bore
• Seal wear from age and heat exposure
• Loss of sealing integrity during transmission service
• Maintenance on Mercedes-Benz 300D, 300TD, and 300SD automatic transmissions

Installation Notes and Tips

Verify shaft and bore dimensions before installation, including the 40.0 mm inside diameter, 62.0 mm outside diameter, and 10.0 mm thickness. Inspect the shaft surface for scoring or wear that could affect sealing, and confirm the seal orientation matches the transmission service procedure. Clean the sealing area thoroughly before installing Elring 330.809 to help ensure proper seating.

Quality Assurance

Elring is a recognized sealing-system manufacturer with extensive OE and aftermarket experience. This automatic transmission input shaft seal is built to the listed dimensional and material specifications for the stated Mercedes-Benz applications.