Pan-head screw Genuine Porsche part 94339703900

This is the Tiptronic transmission oil pan (sometimes referred to as a “gearbox oil pan”), responsible for holding transmission fluid and forming a seal between the transmission’s housing and the fluid reservoir. Made from standard steel, designed to match OEM specifications for fitment and clearance. It features a rust-resistant surface coating and is built to remain warp-free for a durable, secure seal. Gasket product code 98632102502, sump plug, and bolts are not included, meaning you'll need to source or reuse these separately. You will be promoted to buy the fitting kit product code TIPSUMPKIT which is recommended 

Fits:
Porsche 986 Boxster 1997-04 TIPTRONIC
Porsche 987 Boxster MKI 2005-08 TIPTRONIC
Porsche 987C Cayman MKI 2006-08 TIPRTONIC
Porsche 996 Carrera 2 / Carrera 4 >>2001 TIPTRONIC

Common Issues 

Many engine oil pans, this transmission oil pan do require a gasket. Leakage Problems: Transmission fluid leaks are the most frequent issue—often from worn or degraded sealant or pan warping. 

Ensure bolts are replaced and torque-tightened correctly—typically to around 10.5 ft-lb in a crosshatch pattern—to maintain even sealing pressure.

Warping/Torque Loss: Overheating or repeated torque cycles may cause minor warping, leading to fluid seepage—even if the sealant is properly applied.

Corrosion Potential: Even with rust-resistant coating, the steel construction can become susceptible to corrosion over time, especially around edges or mounting surfaces exposed to moisture. 

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Diagram ref no 1.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98632102502

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O-ring for oil drain plug. 



Fits:
Porsche 996 C2 /C4 1998-01 Tiptronic
Porsche 986 Boxster 1997-04 Tiptronic
Porsche 987 Boxster 2005-08 Tiptronic
Porsche 987C Cayman 2006-08 Tiptronic



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98639701400

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Shaft Seal.
Restore the integrity of your Porsche 911’s automatic transmission or differential with this genuine OEM shaft seal. Designed for 911 964 & 993 models with automatic gearbox, this precision seal prevents lubricant leakage and protects internal components from contamination.

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97

Diagram Ref No 14

What This Product Does:

• The shaft seal performs a critical function: it prevents the leakage of fluid (transmission fluid, gear oil or lubricant) from around a rotating shaft housing, while also preventing ingress of dirt, moisture or contaminants into the housing.
• In a gearbox or differential application for the 993/964, the seal ensures that the automatic transmission / differential assembly stays properly lubricated, maintains correct fluid levels and keeps contamination out.
• Proper sealing ensures reliable gearbox/differential life, prevents lubricant loss, avoids overheating or accelerated wear of internal components.

Symptoms & Signs Of Wear / When To Replace:

• Visible fluid leakage around the shaft housing area or gearbox/differential case: oil/gear-oil seeping or pooling near the area where the seal sits.
  
• Low gearbox or differential fluid level during inspections or the need to top up frequently — a worn seal may allow persistent leakage.
  
• Unusual noise or vibration from the differential/gearbox area — due to lubricant loss or contamination ingress causing increased wear.
  
• Cracked, hardened or damaged seal lip if visible during inspection (though many seals are internal). Age-related hardening or swelling of the seal material is a concern.
  
• When doing major transmission/differential service: If disassembling gearbox or differential and replacing bearings, shafts, etc., it’s often prudent to replace the seal at the same time due to age or service life.
  
  

Why Replacement Matters:

• Preserves gearbox/differential reliability: A faulty seal can cause lubricant loss and subsequent damage to bearings, gears or internal components; preventing this saves major repair cost.
  
• Prevents contamination: Preventing ingress of dirt, water or foreign material through a bad seal protects internal mechanical precision and longevity.
  
• Pre-emptive maintenance: On older vehicles, seals degrade with age, heat and time. Replacing a suspect seal while condition allows can avoid a catastrophic failure down the line.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94339701700

The product you are viewing cross references to these numbers