Elring 778.330 Engine Crankshaft Seal - Rear

Elring 778.330 Crankshaft Seal Overview

The Elring 778.330 engine crankshaft seal is a radial shaft seal for the transmission side of the engine, built with FPM (fluoride rubber) for sealing performance in demanding heat and oil exposure. It features an 8.0 mm thickness, 92.0 mm inside diameter, 109.0 mm outside diameter, and a dust lip to help keep contaminants away from the sealing edge.

Compatible with a wide range of Subaru, Toyota, and Scion applications, this seal is a direct-fit option for vehicles such as the Subaru Forester, Subaru Crosstrek, Subaru Impreza, Subaru Legacy, Subaru Outback, Subaru WRX, Subaru BRZ, Toyota 86, and Scion FR-S. This part cross-references National 711039 for the same application.

Key Features

• Elring part number 778.330
• Engine crankshaft seal for the transmission side
• FPM (fluoride rubber) sealing material for oil resistance and durability
• 8.0 mm thickness with 92.0 mm inside diameter and 109.0 mm outside diameter
• Dust lip helps reduce contamination at the seal surface
• Radial shaft seal design AS with swirl type LD
• Fits Subaru, Toyota, and Scion applications listed below

Detailed Fitment and Application

Use this seal for vehicles that require the specified crankshaft seal dimensions and transmission-side placement. Fits 2020-2024 Subaru Crosstrek, rear; Fits 2019-2024 Subaru Forester, rear; Fits 2020-2024 Subaru Legacy, rear; Fits 2020-2024 Subaru Outback, rear; Fits 2020-2023 Subaru Impreza, rear; Fits 2013-2020 Subaru BRZ, rear; Fits 2019-2020 Toyota 86, rear; Fits 2017-2018 Toyota 86; Fits 2013-2016 Scion FR-S; Fits 2013-2016 Subaru XV; Fits 2013-2015 Subaru XV Crosstrek; Fits 2015-2019 Subaru WRX; Fits 2014-2018 Subaru Forester; Fits 2012-2019 Subaru Impreza; Fits 2013-2019 Subaru Legacy; Fits 2013-2019 Subaru Outback; Fits 2016-2019 Subaru Crosstrek; Fits 2019 Subaru XV; Fits 2025 Subaru Forester; Fits 2024 Subaru Impreza; Fits 2020-2021 Subaru WRX; Fits 2011-2012 Subaru Forester; Fits 2011 Subaru Impreza; Fits 2012 Subaru Legacy; Fits 2013 Subaru Forester.

Common Repair Uses

• Oil seepage at the crankshaft seal area
• Transmission-side engine oil leakage
• Contamination entering the seal lip area
• Seal wear from heat, age, or mileage
• Replacement during engine or transmission service

Installation Notes and Tips

Confirm the seal dimensions, radial shaft seal design, and transmission-side location before installation. Clean the sealing surface thoroughly, inspect the crankshaft and surrounding housing for wear or scoring, and install the seal squarely to avoid lip damage. For Subaru Forester, Subaru Impreza, and Subaru Crosstrek applications, verify the exact year and position against the vehicle listing before ordering. Elring 778.330 should be matched to the OE-style dimensions and swirl type noted in the product data.

Quality Assurance

Elring is a recognized name in engine sealing systems, and this crankshaft seal is specified with precise dimensional and material data for application matching. The part number 778.330 is supported by listed interchange references for cross-checking fitment.