Seal ATF Reservoir to Gearbox Sump. Porsche 924 / 924S / 944 / 968 / 928  ❭  477321487

ATF Reservoir to Gearbox Sump Seal – O-Ring (924 / 928 / 944 / 968)

High-quality replacement O-ring seal designed for the connection between the automatic transmission fluid (ATF) reservoir and the gearbox sump.

This critical sealing component ensures a tight and leak-free connection at the transition point between the filler container and the transmission oil pan, maintaining proper fluid circulation and system integrity.

Fits:

• Porsche 924 2.0L 1976-79
• Porsche 924 2.0L 1980-85
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Diagram ref no 41

Manufactured to OEM specifications, this seal is essential for preventing leaks and ensuring reliable operation of Porsche automatic transmission systems.

Key Features

• Direct replacement O-ring seal for ATF reservoir connection
• Designed for gearbox sump / transmission oil pan interface
• OEM-style fit and sealing performance
• Helps prevent ATF leaks and contamination
• Durable material for long-term reliability
• Essential maintenance component for automatic transmissions

Function and Purpose

This O-ring seal ensures a secure connection between the ATF reservoir and gearbox sump.

It helps to:

• Prevent transmission fluid leaks
• Maintain proper system pressure and flow
• Protect against dirt and contamination
• Support long-term gearbox performance

Why Replace This Seal

Over time, O-rings can degrade due to heat, pressure, and fluid exposure.

Common issues include:

• ATF leaks at the reservoir connection
• Hardened or brittle seal material
• Loss of sealing integrity
• Reduced transmission efficiency

Replacing the seal ensures continued reliability and prevents costly transmission issues.

Maintain the reliability and performance of your Porsche automatic transmission with this ATF reservoir to gearbox sump O-ring seal, designed for Porsche 924, 928, 944, and 968 models.

This OEM-style seal ensures a secure connection between the transmission fluid reservoir and oil pan, preventing leaks and maintaining proper system function. It is a vital component for both routine maintenance and restoration work.

Whether you are addressing a fluid leak or carrying out preventative servicing, this Porsche transmission O-ring provides a simple but essential solution.

Ideal for Porsche Transmission Maintenance & Repair

This product is optimised for enthusiasts searching for:

• Porsche ATF reservoir to sump seal replacement
• Porsche transmission O-ring 477321487
• Porsche 928 automatic gearbox seal
• Porsche 944 968 ATF reservoir seal
• Porsche transmission leak repair parts

These long-tail keywords target high-intent buyers performing maintenance or repair work.

OEM-Style Accuracy and Fitment

Manufactured to match original specifications:

• Correct fit for Porsche automatic transmission systems
• Reliable sealing performance under pressure
• Durable materials for long-term use
• Direct replacement with no modification required

Why This Seal Matters

Prevents Fluid Leaks
Maintains correct transmission fluid levels.

Protects Transmission System
Prevents contamination and pressure loss.

Essential Maintenance Item
Small part with critical importance for gearbox health.