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Gearbox Sump / Oil Pan
By OE Match
- 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Porsche ATF Reservoir Cap Seal – Automatic Transmission Filler Neck Seal
High-quality replacement seal for the automatic transmission fluid (ATF) reservoir cap.
This seal fits the screw cap of the transmission filler
neck, ensuring a secure and leak-free seal to maintain proper fluid containment
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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- 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 9
Manufactured to OEM specifications, this component is essential for preventing fluid leaks, maintaining correct pressure, and ensuring reliable transmission performance.
Key Features
• Direct replacement ATF reservoir cap seal
• Designed for automatic transmission filler neck
• OEM-style fit and function
• Helps prevent fluid leaks and contamination
• Durable material for long-term performance
• Essential maintenance component
Function and Purpose
The ATF cap seal ensures a tight seal between the filler neck and cap, helping to maintain proper transmission operation.
It helps to:
• Prevent transmission fluid leaks
• Maintain system pressure and cleanliness
• Protect against dirt and contamination
• Support long-term gearbox reliability
Why Replace Your ATF Cap Seal
Over time, seals can degrade due to heat, fluid exposure, and age.
Common issues include:
• Fluid leaks around the filler cap
• Hardened or cracked seal material
• Loss of sealing performance
• Contamination risk
Replacing the seal ensures continued reliability and proper transmission function.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477321483A
The product you are viewing cross references to these numbers
OEMatch Gearbox Sump / Oil Pan — Durability, Sealing, Performance
For Porsche models, OEMatch gearbox sumps and oil pans are chosen to support transmission servicing, leak repair and reliable oil management. Typical uses include routine maintenance, gearbox rebuilds and restoration work where correct fluid containment, cooling and access to drain or filter points are required.
Understanding OEMatch Gearbox Sump / Oil Pan
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original gearbox sump / oil pan. OE (Original Equipment) refers to parts matching original specifications for the gearbox sump / oil pan and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM gearbox sump / oil pan engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. The sump collects and circulates gearbox oil, provides a location for the drain plug and any filter, and helps dissipate heat from transmission fluid.
Benefits Include
- Restores secure fluid containment and reduces the risk of leaks
- Improves oil circulation and transmission cooling
- Provides correct mounting for drain plugs and any filter during servicing
Why Gearbox Sump / Oil Pan Wear and Fail
- Impact or abrasion from road debris causing dents or cracks
- Corrosion or pitting that degrades sealing faces and fastenings
- Damaged threads, worn drain plugs or failed gaskets and seals
The Importance of Replacing with OEMatch Gearbox Sump / Oil Pan
Replacing a damaged or leaking sump prevents fluid loss and overheating that can cause premature gearbox wear and impaired hydraulic operation. A correctly sealed and fitted sump supports reliable shifting and protects internal gears, bearings and seals; renewing drain hardware and gaskets during installation reduces the chance of repeat leaks.
Advantages
- Corrosion-resistant materials and robust construction
- Precision sealing surfaces to reduce leak risk
- Fits original mounting points and clearances for easy installation
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new sealing hardware where specified and check for leaks after initial running.
