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Porsche > 911 & 912 (1965-1989) > 911 1965-1968 2.0L / 912 SWB (F) > Engine Cooling >

Oil Tank

Oil Tank

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DISPLAYING 1 to 6 (of 6 products)
Engine OIL TANK 911 2.0L / 2.2L 01/1963-12/1971 internally filled via engine bay - 91110700116, 91110700169, 91110700115
3
Engine OIL TANK 911 2.0L / 2.2L 01/1963-12/1971 internally filled via engine bay
91110700169/2
Product Information
Product Information
Engine OIL TANK 911 2.0L / 2.2L 01/1963-12/1971
Original fitting setup. May require adjustment for position of the mounts.


* Type where oil is filled from the inside of the engine bay These oil tanks do not take an oil level sender as the surrounding is too thick, these can be used for cars without an "oil level sender" but you will then need to fit a blanking plate

Fits:
Porsche 911 1965-71

Diagram Ref No 29

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91110700169
91110700116
91110700169
91110700115

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Engine oil tank 911 2.0L / 2.2L 01/1963-12/1971 internally filled via engine bay Dansk - 91110700116, 91110700169, 91110700115, 1612900100, 592009 - 1612900100
6
Engine oil tank 911 2.0L / 2.2L 01/1963-12/1971 internally filled via engine bay Dansk
91110700169/1
Product Information
Product Information
Engine OIL TANK 911 2.0L / 2.2L 01/1963-12/1971
* Type where oil is filled from the inside of the engine bay

dansk

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.

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Related, superseded, cross reference or alternative numbers for comparison.

91110700169
91110700116
91110700169
91110700115
1612900100
592009

The product you are viewing cross references to these numbers
Engine Oil Tank WITHOUT Oil Level Sender Unit . 911 2.0ltr / 2.2ltr 06/1967 - 07/1971 - 91110700116, 91110700169, 91110700115, 592009 - 1612900700
8
Engine Oil Tank WITHOUT Oil Level Sender Unit . 911 2.0ltr / 2.2ltr 06/1967 - 07/1971
91110700116/1
Product Information
Product Information

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.



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Related, superseded, cross reference or alternative numbers for comparison.

91110700116
91110700116
91110700169
91110700115
592009

The product you are viewing cross references to these numbers
Oil tank cap gasket. Porsche 911 / 993 / 914 / 356 - 93010727201, 90120127200 - COL11.3.103, COL113103
2
Oil tank cap gasket. Porsche 911 / 993 / 914 / 356
93010727201/1
Product Information
Product Information
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

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

93010727201
93010727201
90120127200

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Oil Tank Drain Plug. Porsche 911 1965-89 - 91110717603, 91110717602, 90110717600, 90110717601
4
Oil Tank Drain Plug. Porsche 911 1965-89
Special Order item
91110717603::1
Product Information
Product Information
Oil Tank Drain Plug. Porsche 911 1965-89

porsche

Fits:
Porsche 911 1965-89

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

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

91110717603
91110717603
91110717602
90110717600
90110717601

The product you are viewing cross references to these numbers
Oil tank drain plug. Porsche 911 1965-89 - 91110717603, 91110717602, 90110717600, 90110717601 - M22 X 1.5 X 13.5
2
Oil tank drain plug. Porsche 911 1965-89
91110717603/1::1
Product Information
Product Information
Oil tank drain plug. Galvanized. M22 x 1.5 x 13.5

oematch

Fits:
Porsche 911 1965-89

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

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

91110717603
91110717603
91110717602
90110717600
90110717601

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DISPLAYING 1 to 6 (of 6 products)
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About Oil Tank

Engine Oil Tanks – Reliable Lubrication and Temperature Control for Porsche Engines

Engine oil tanks are a vital component in Porsche’s high-performance lubrication systems, especially in models equipped with dry-sump or performance-oriented engines. These tanks store, circulate, and cool engine oil, ensuring the correct oil pressure and temperature are maintained under all driving conditions - from everyday use to track performance.

At Design911, we supply a wide range of genuine and high-quality engine oil tanks for Porsche models including 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each tank is designed to match the factory’s engineering precision, providing exceptional oil flow, pressure control, and durability to keep your Porsche performing at its best.

What Do Engine Oil Tanks Do?

The engine oil tank forms the heart of your Porsche’s lubrication system, performing several key roles:

  • Stores and circulates engine oil to maintain a continuous supply under all conditions.
  • Separates air and oil to prevent foaming and maintain oil pressure.
  • Assists in temperature regulation, allowing excess heat to dissipate efficiently.
  • Ensures optimal lubrication for engine components, reducing friction and wear.

In Porsche’s dry-sump systems, the oil tank is particularly important — allowing the engine to sit lower for better handling while ensuring consistent oil delivery even under high G-forces.

Why Do Engine Oil Tanks Fail?

While designed for long-term reliability, engine oil tanks can deteriorate or fail over time due to mechanical stress, corrosion, or contamination. Common causes include:

  • Cracks or leaks from vibration or impact damage.
  • Corrosion caused by moisture, condensation, or old oil residue.
  • Blocked breather systems leading to pressure imbalance.
  • Internal contamination from sludge or metal debris.
  • Deteriorated seals or fittings causing oil leaks or pressure loss.

Signs of failure may include visible oil leaks, fluctuating oil pressure readings, or an oil smell around the engine bay.

Why Replace a Faulty Engine Oil Tank?

A damaged or leaking oil tank can cause oil loss, low pressure, or poor cooling — all of which risk severe engine damage. Replacing a faulty tank ensures consistent oil supply, stable pressure, and optimal engine protection.

Benefits of replacement include:

  • Restored oil circulation and pressure stability.
  • Prevention of leaks and oil starvation. 
  • Improved lubrication and temperature management.
  • Manufacturer-quality materials for long-lasting reliability.

All tanks in this range are built to meet or exceed original engineering standards, using high-grade alloys or reinforced composites to deliver durability, corrosion resistance, and a precise factory fit.

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