Oil Tank

Engine OIL TANK 911 2.0L / 2.2L 01/1963-12/1971
* Type where oil is filled from the inside of the engine bay



Fits:
Porsche 911 1965-71
NOT for Sportomatic models

Note: You might need to retrofit the level sender as this tank is reverse stud pattern. M5 Stud fastening nuts may be required #90007609101 and washers #90002500330 - you will require 5 of each number

Click 'Zoom in' for large parts diagram.
Diagram Ref No 29.

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Porsche 911 2.0ltr–2.2ltr Oil Tank – WITHOUT OIL LEVEL SENDER HOLE

This oil tank is designed for early Porsche 911 2.0ltr and 2.2ltr models built between June 1967 and July 1971. It is manufactured without the oil level sender hole, making it correct for specific early F-model applications and restoration projects where originality is essential.

Fits:
Porsche 911 06/1967 - 1968 2.0L 
Porsche 911 1968- 07/1971 2.2L 

Diagram Ref No 29

The oil tank is a critical component of the classic Porsche 911 dry sump lubrication system. Unlike conventional engines, early 911 models store oil in a separate external tank rather than in a sump beneath the crankshaft. This design ensures consistent oil pressure, improved cooling and reliable lubrication under high cornering loads.

What This Oil Tank Does

In the dry sump system, oil is scavenged from the engine and stored in the external oil tank. From there, it is fed back into the engine under pressure.

The oil tank:
• Stores engine oil outside the crankcase
• Supports stable oil pressure during driving
• Assists with oil cooling
• Separates air from oil before recirculation
• Maintains proper lubrication under hard acceleration and cornering

A properly functioning oil tank is essential for engine longevity in early air-cooled Porsche 911 models.

Why Oil Tanks Fail

After decades of use, original Porsche 911 oil tanks commonly suffer from:

Internal corrosion
Moisture accumulation inside the tank can lead to rust formation, particularly in vehicles that have been stored for long periods.

External rust and seam deterioration
Road debris and trapped dirt around mounting points can cause corrosion on the outside of the tank.

Contamination build-up
Sludge and debris can accumulate internally, affecting oil quality and flow.

Previous repairs or modifications
Older tanks may have been welded, patched or modified incorrectly, compromising reliability.

A failing oil tank can lead to oil leaks, contamination, pressure issues and ultimately engine damage.

Why You May Need a Replacement Oil Tank

Restoration Accuracy
If you are restoring a 1967–1971 Porsche 911 2.0 or 2.2, using the correct oil tank without an oil level sender hole ensures factory-correct configuration.

Corrosion Replacement
If your original tank shows signs of rust inside or out, replacement is the safest solution to protect your engine.

Engine Rebuild Projects
When rebuilding an early air-cooled 911 engine, replacing the oil tank eliminates the risk of old contamination entering a fresh engine build.

Leak Prevention
Old seam welds and fittings can begin to seep over time. A new oil tank restores system integrity.

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Stainless Steel Engine Oil Tank 

Restore an essential part of your early Porsche 911's dry-sump lubrication system with this OE Match Stainless Steel Engine Oil Tank. This oil tank is ideal for replacing an original tank suffering from corrosion, leaks, contamination or previous repairs.
 
Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1971 2.2L LWB (F)  

This early-style tank uses the original arrangement where the engine oil is filled from inside the engine bay and is suitable for non-Sportomatic models.

What Does the Oil Tank Do?

The classic air-cooled Porsche 911 uses a dry-sump lubrication system. Rather than storing the majority of its engine oil in a conventional sump underneath the engine, the oil is held in a separate external reservoir.

Oil is scavenged from the engine and returned to the tank before being circulated through the lubrication system again.

The oil tank performs several important functions:

• Stores the engine's main oil supply
• Provides a consistent supply of oil to the engine
• Helps separate air from returning engine oil
• Helps reduce oil aeration and foaming
• Supports reliable lubrication during cornering, acceleration and braking
• Forms an essential part of the engine's oil circulation system
• Contributes to effective oil and engine temperature management

A clean, structurally sound and leak-free oil tank is therefore essential to the reliability and longevity of the air-cooled flat-six engine.

Why Choose a Stainless Steel Replacement?

Corrosion is one of the biggest problems affecting original early Porsche 911 oil tanks.

Stainless steel provides increased resistance to corrosion compared with conventional mild-steel construction, making it an excellent choice for classic Porsche restorations and cars intended for continued long-term use.

It provides the opportunity to replace a decades-old reservoir while retaining the correct function of the original dry-sump lubrication system.

Why Do Oil Tanks Fail?

Original Porsche 911 oil tanks from this period are now more than 50 years old. Even tanks that appear serviceable externally can suffer deterioration internally.

Common causes of failure include:

• Internal corrosion caused by moisture
• External rust and corrosion
• Deterioration around seams and welded joints
• Corrosion around mounting points
• Oil leaks from weakened areas
• Damage around hose and pipe connections
• Internal sludge and contamination
• Physical damage
• Previous welding or poor-quality repairs
• General deterioration caused by age

Internal corrosion is particularly important because rust and contamination can potentially enter the engine's lubrication system.

When Should the Oil Tank Be Replaced?

Replacement should be considered whenever the existing tank can no longer provide a clean, secure and leak-free reservoir for the engine oil.

• Typical warning signs include:
• Visible oil leaks
• Significant external corrosion
• Suspected internal rust
• Corrosion around seams or mounting points
• Damaged pipe or hose connections
• Persistent internal contamination or sludge
• Previous repairs of questionable quality
• Physical damage or deformation
• During a complete vehicle restoration
• During an engine rebuild where contamination of the new engine must be avoided

Replacing a questionable oil tank during an engine rebuild is particularly worthwhile, as it prevents old contamination or corrosion debris from being introduced into a freshly rebuilt engine.

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Oil tank cap gasket.

Fits:
Porsche 356 B-T6 / C
Porsche 911 1965-86
Porsche 914 1970-76
Porsche 993 1994-98

Diagram ref no 12

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Oil Tank Drain Plug. Porsche 911 1965-89



Fits:
Porsche 911 1965-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 11.

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Fits:
Porsche 911 1965-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 11.

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