Cobb Subaru EJ TGV Shaft Seal Kit

The COBB Subaru EJ TGV Shaft Seal Kit does not have enough exact application evidence to assign safe vehicle YMM. Match manufacturer part number 443700, complete vehicle, engine and transmission configuration, factory equipment, required calibration, emissions eligibility, interfaces, and every product note before ordering.

Key Features

• Double-Lip Seal Design: Provides two sealing points per shaft for complete prevention of air leaks under high boost conditions.
• High-Temperature Viton Material: Resists heat up to 400F and oils, outlasting OEM rubber seals that degrade over time.
• Direct OEM Replacement: Matches factory dimensions for plug-and-play fit without modifications or special tools.
• Yes, direct fit for all EJ257-equipped STI models from 2004-2021 with factory TGVs.

Fitment

Specifications

What’s Included

One new COBB product in the exact configuration and quantity identified by manufacturer part number 443700. Calibrations, hardware, hoses, clamps, gaskets, adapters, wiring, fluids, tools, and companion components are included only when expressly stated for this exact part number.

About COBB

COBB develops engine-management, intake, cooling, exhaust, drivetrain, suspension, and vehicle-accessory products for supported performance platforms. Correct selection remains exact-vehicle, exact-configuration, exact-interface, and exact-part-number specific.

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Frequently Asked Questions

Why is fitment verification required for this COBB product?
Exact vehicle application evidence is not complete enough for safe YMM. Confirm the vehicle, drivetrain, factory equipment, calibration, emissions eligibility, interfaces, and exact part number before ordering.

Are all supporting parts included?
Only components expressly listed for the exact manufacturer part number are included. Tuning, hardware, hoses, clamps, gaskets, adapters, wiring, fluids, and companion components may be separate.

Is tuning or calibration required after installation?
Requirements depend on the exact product and vehicle. Intake, fuel, boost, turbo, and engine-management changes may require a compatible calibration before operation.

Installation Instructions

Follow the current COBB and factory service instructions for this exact part number. Verify fitment, factory equipment, emissions eligibility, required calibration, software and firmware, interfaces, hardware, fluid or electrical connections, and clearances before installation. Inspect the completed work and confirm safe operation before full-load use.