Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > 911 & 912 (1965-1989) > 911 1978-1983 3.0L / SC > Engine Rebuild Parts > Oil System Parts >

Oil Tank & Parts

Oil Tank & Parts

Filter by brand
DISPLAYING 33 to 45 (of 45 products)
1 2 3
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Related, superseded, cross reference or alternative numbers for comparison.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

The product you are viewing cross references to these numbers
Oil tank gasket. Porsche 911 1973-89 / 930 1975-89 - 91110719203
3
Oil tank gasket. Porsche 911 1973-89 / 930 1975-89
Special Order item
91110719203
Product Information
Product Information
Gasket between oil tank, oil filter and inner rear wing.

porsche

Fits:
Porsche 911 1973-89
Porsche 911 (930) Turbo 1975-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 13.

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Related, superseded, cross reference or alternative numbers for comparison.

91110719203
91110719203

The product you are viewing cross references to these numbers
Oil tank gasket. Porsche 911 1973-89 / 930 1975-89 - 91110719203 - 911 107 192 03, 1612950300
2
Oil tank gasket. Porsche 911 1973-89 / 930 1975-89
91110719203/1
Product Information
Product Information
Oil tank gasket. 
This precision-cut gasket seals the connection between the outer oil reservoir and the inner fender, preventing oil leaks and maintaining proper system pressure.

Fits:
Porsche 911 1973 - 1989
Porsche 911 (930) Turbo 1975 - 1989

Diagram Ref No 13.

As the oil tank gasket ages, it becomes brittle, compressed, or cracked from heat cycles and vibration. This leads to oil seepage around the tank area, creating drips beneath the car, engine-bay contamination, and potential loss of oil pressure. Replacing the gasket restores a proper seal, prevents oil leaks, and helps maintain the health and cleanliness of the lubrication system.

Replace the oil tank gasket when:
• You notice oil drips or seepage around the oil tank
• The gasket appears dry, brittle, cracked, or crushed
• The oil tank is being serviced or removed
• You smell oil fumes from the rear right side of the vehicle
• Oil pressure seems inconsistent due to possible leakage
• Performing a restoration or major engine/oil system refresh

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

91110719203
91110719203

The product you are viewing cross references to these numbers
Oil tank mounting cup. Porsche 911 65-89 - 90110766100
3
Oil tank mounting cup. Porsche 911 65-89
Special Order item
90110766100
Product Information
Product Information
Oil tank mounting cup.

porsche

Fits:
Porsche 911 1965-71
Porsche 911 1973-89
Porsche 930 Turbo 1975-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

90110766100
90110766100

The product you are viewing cross references to these numbers
Oil Tank Mounting Washer. Porsche 911 1965-89 - 90110769200 - 1612950900
3
Oil Tank Mounting Washer. Porsche 911 1965-89
90110769200/1
Product Information
Product Information

Porsche Oil Tank Mounting Washer - Precision Mounting Component for 911 (1965–1989) & 914-6
Sold each - 2 required per car

The oil tank mounting washer is a small yet vital part of the Porsche dry-sump lubrication system, designed to secure the oil tank in position and maintain proper sealing under vibration and temperature variations. This precision-engineered washer ensures that the oil tank remains stable, preventing movement or leaks that can affect oil flow and engine performance.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 914-6  (1970-1976)


Diagram ref no 14

We supply high-quality replacement oil tank mounting washers crafted to the same dimensional standards as the original Porsche components. Manufactured from durable, corrosion-resistant materials, these washers are designed to withstand continuous exposure to oil, heat, and pressure—making them ideal for classic Porsche maintenance and restorations.

What Does the Oil Tank Mounting Washer Do?

The oil tank mounting washer plays a crucial role in your Porsche’s lubrication and engine stability system.

Core Functions:

  • Secures the oil tank to the chassis mounting points.
  • Distributes load evenly across the mounting area.
  • Prevents vibration and movement during operation.
  • Ensures proper sealing against leaks or oil seepage.
  • Maintains correct alignment for oil line connections.

Without a properly functioning washer, the oil tank can shift slightly, leading to unwanted vibrations, stress on oil fittings, or even oil leaks that compromise system pressure.

Why Do Oil Tank Mounting Washers Fail?

Despite their small size, mounting washers endure extreme conditions—heat, vibration, and oil exposure. Over time, this can lead to wear and failure.

Common Causes of Failure Include:

  • Thermal fatigue from repeated heat cycles.
  • Corrosion caused by prolonged contact with oil and moisture.
  • Metal fatigue from vibration or overtightening.
  • Deformation or cracking due to age or mechanical stress.
  • Loss of elasticity or tension affecting mounting stability.

When a washer becomes worn or corroded, it can no longer secure the tank properly—potentially leading to oil leaks, vibration noise, or tank misalignment.

Why Replace or Upgrade Your Oil Tank Mounting Washer?

Replacing a worn or damaged oil tank mounting washer restores secure fitment and ensures the integrity of your oil system. This simple yet essential component helps prevent larger mechanical issues and supports consistent lubrication performance.

Key Benefits:

  • Restores proper oil tank stability and alignment.
  • Prevents vibration, leaks, or stress on mounting bolts.
  • Maintains efficient oil system pressure and performance.
  • Manufactured to precise Porsche specifications for accurate fit.
  • Constructed from high-grade, oil- and heat-resistant material.
  • Ideal for Porsche 911 (1965–1989) and 914-6 restoration or maintenance.

Our Design911 mounting washers deliver reliable, long-lasting performance—perfect for enthusiasts maintaining classic Porsche engineering precision.

Highlights

  • Designed for Porsche 911 (1965–1989) and Porsche 914-6 models.      
  • Precision-fit replacement washer for oil tank mount.
  • Crafted from high-strength, corrosion-resistant materials.
  • Withstands high temperatures and oil exposure.
  • Essential for dry-sump system reliability.
  • Ideal for restoration, maintenance, or preventative servicing.       



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

90110769200
90110769200

The product you are viewing cross references to these numbers
Oil tank mounting washer. Porsche 911 1965-89 - 90110769301 - 1612950700
3
Oil tank mounting washer. Porsche 911 1965-89
90110769301/1
Product Information
Product Information

Porsche Oil Tank Mounting Washer - Precision Mounting Component for 911 (1965–1989) & 914-6
Sold each - 2 required per car

The oil tank mounting washer is a small yet vital part of the Porsche dry-sump lubrication system, designed to secure the oil tank in position and maintain proper sealing under vibration and temperature variations. This precision-engineered washer ensures that the oil tank remains stable, preventing movement or leaks that can affect oil flow and engine performance.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 914-6  (1970-1976)

Diagram ref no 15

We supply high-quality replacement oil tank mounting washers crafted to the same dimensional standards as the original Porsche components. Manufactured from durable, corrosion-resistant materials, these washers are designed to withstand continuous exposure to oil, heat, and pressure—making them ideal for classic Porsche maintenance and restorations.

What Does the Oil Tank Mounting Washer Do?

The oil tank mounting washer plays a crucial role in your Porsche’s lubrication and engine stability system.

Core Functions:

  • Secures the oil tank to the chassis mounting points.
  • Distributes load evenly across the mounting area.
  • Prevents vibration and movement during operation.
  • Ensures proper sealing against leaks or oil seepage.
  • Maintains correct alignment for oil line connections.

Without a properly functioning washer, the oil tank can shift slightly, leading to unwanted vibrations, stress on oil fittings, or even oil leaks that compromise system pressure.

Why Do Oil Tank Mounting Washers Fail?

Despite their small size, mounting washers endure extreme conditions—heat, vibration, and oil exposure. Over time, this can lead to wear and failure.

Common Causes of Failure Include:

  • Thermal fatigue from repeated heat cycles.
  • Corrosion caused by prolonged contact with oil and moisture.
  • Metal fatigue from vibration or overtightening.
  • Deformation or cracking due to age or mechanical stress.
  • Loss of elasticity or tension affecting mounting stability.

When a washer becomes worn or corroded, it can no longer secure the tank properly—potentially leading to oil leaks, vibration noise, or tank misalignment.

Why Replace or Upgrade Your Oil Tank Mounting Washer?

Replacing a worn or damaged oil tank mounting washer restores secure fitment and ensures the integrity of your oil system. This simple yet essential component helps prevent larger mechanical issues and supports consistent lubrication performance.

Key Benefits:

  • Restores proper oil tank stability and alignment.
  • Prevents vibration, leaks, or stress on mounting bolts.
  • Maintains efficient oil system pressure and performance.
  • Manufactured to precise Porsche specifications for accurate fit.
  • Constructed from high-grade, oil- and heat-resistant material.
  • Ideal for Porsche 911 (1965–1989) and 914-6 restoration or maintenance.

Our Design911 mounting washers deliver reliable, long-lasting performance—perfect for enthusiasts maintaining classic Porsche engineering precision.

Highlights

  • Designed for Porsche 911 (1965–1989) and Porsche 914-6 models.      
  • Precision-fit replacement washer for oil tank mount.
  • Crafted from high-strength, corrosion-resistant materials.
  • Withstands high temperatures and oil exposure.
  • Essential for dry-sump system reliability.
  • Ideal for restoration, maintenance, or preventative servicing.       



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

90110769301
90110769301

The product you are viewing cross references to these numbers
Oil tank restrictor. Porsche 911 81-89 - 93010728900
4
Oil tank restrictor. Porsche 911 81-89
Special Order item
93010728900
Product Information
Product Information
Oil tank restrictor

porsche

Fits:
Porsche 911 1981-89

Click 'Zoom in' for large parts diagram.
Diagram ref no. 7

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

93010728900
93010728900

The product you are viewing cross references to these numbers
Oil Tank Washer. Porsche 911 1965-89 - 90110769200
2
Oil Tank Washer. Porsche 911 1965-89
Special Order item
90110769200
Product Information
Product Information
Oil Tank Washer.

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76

Diagram ref no 14

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

90110769200
90110769200

The product you are viewing cross references to these numbers
Oil tank washer. Porsche 911 1965-89 - 90110769301
2
Oil tank washer. Porsche 911 1965-89
Special Order item
90110769301
Product Information
Product Information
Oil tank washer.

porsche

Fits:
Porsche 911 1965-89
Porsche 914-6 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

90110769301
90110769301

The product you are viewing cross references to these numbers
Side filler oil cap kit. Porsche 911 1973-89 - 90120127100, 90120127101, 90120127102, 91110707200, 91110707201, 91110707202, 91110707203, 91110707204 - COL11.2.103
2
Side filler oil cap kit. Porsche 911 1973-89
911112103
Product Information
Product Information
Side filler oil cap kit. 

Fits:
Porsche 911 1973 to 1989

A lockable oil filler cap with beautiful engraved OIL inscription for side filler modification

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

911112103
90120127100
90120127101
90120127102
91110707200
91110707201
91110707202
91110707203
91110707204

The product you are viewing cross references to these numbers
Stone guard oil tank Porsche 911 1974-89 - 91110700630, 91110700620, 91110700621, 91110700622, 91110706624, 91110700626, 91110700631, 93010700603, 93010700604, 93010700607, 93010700600 - COL11.4.100
2
Stone guard oil tank Porsche 911 1974-89
91110714100/1
Product Information
Product Information
Stone guard for oil tank 

Fits:
Porsche 911 - 1974 to 1989

Protect the engine oil tank from stones and debris with this stone guard

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

91110714100
91110700630
91110700620
91110700621
91110700622
91110706624
91110700626
91110700631
93010700603
93010700604
93010700607
93010700600

The product you are viewing cross references to these numbers
Upper oil tank fitting with filter. Porsche 911/912/914 - 90110772900 - 901 107 729 00
2
Upper oil tank fitting with filter. Porsche 911/912/914
90110772900/1
Product Information
Product Information
Upper oil tank fitting with filter.

oematch

Fits:
Porsche 911 2.0-3.3 01/63-07/83
Porsche 912 1.6 08/67-07/70
Porsche 914/6 2.0 11/69-12/73

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

90110772900
90110772900

The product you are viewing cross references to these numbers
Upper oil tank fitting. Porsche 911/912/914 - 90110772900, 1613750300
2
Upper oil tank fitting. Porsche 911/912/914
Special Order item
90110772900
Product Information
Product Information
Upper oil tank fitting.

porsche

Fits:
Porsche 911 2.0-3.3 01/63-07/83
Porsche 912 1.6 08/67-07/70
Porsche 914/6 2.0 11/69-12/73

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

90110772900
90110772900
1613750300

The product you are viewing cross references to these numbers
DISPLAYING 33 to 45 (of 45 products)
1 2 3
Also found on these pages
About Oil Tank & Parts

Oil Tanks & Parts – Precision Lubrication Storage for Porsche Performance

The engine oil tank is a vital component in Porsche’s dry-sump lubrication system, designed to store and manage oil separately from the crankcase. Unlike traditional wet-sump setups, this system ensures consistent oil pressure, efficient cooling, and superior lubrication under all driving conditions — from spirited road use to high-performance track sessions.

At Design911, we offer a wide range of engine oil tanks, fittings, and associated components for Porsche models, both classic and modern. Built from high-grade aluminium, steel, and corrosion-resistant materials, our products are designed for durability, temperature stability, and optimal oil management.

Whether you’re maintaining an air-cooled 911 or servicing a contemporary GT model, our oil tanks and parts guarantee the reliability and performance your engine deserves.

What Do Oil Tanks & Components Do?

The oil tank serves as the reservoir in a dry-sump lubrication system, allowing continuous oil flow to the engine while preventing aeration or starvation during hard acceleration, braking, or cornering.

Core Functions:

  • Stores and circulates oil independently from the engine block.
  • Maintains stable oil pressure and temperature for consistent lubrication.
  • Prevents oil starvation during high-performance driving.
  • Aids in cooling, helping regulate operating temperatures.
  • Separates air and oil, preventing foaming and pressure loss.

Supporting components — such as oil tank fittings, caps, hoses, and mounts — ensure secure flow, sealing, and performance integrity across the entire lubrication circuit.

Why Do Oil Tanks & Parts Fail?

Over time, exposure to heat, pressure, and vibration can cause the oil tank and its associated components to degrade or leak, compromising the lubrication system.

Common Causes of Failure Include:

  • Corrosion or internal contamination from moisture or sludge build-up.
  • Cracks or punctures caused by vibration or impact.
  • Oil leaks from damaged seals, caps, or connections.
  • Blockages in breather or feed lines affecting oil circulation.
  • Heat stress, leading to material fatigue or deformation.

Typical symptoms include oil leaks, fluctuating oil pressure, overheating, or unusual engine noise — all signs that inspection or replacement is required.

Why Replace Oil Tank Components?

Replacing a worn or leaking oil tank ensures your Porsche’s lubrication system remains efficient and protected. Our precision-engineered oil tanks and accessories are designed to deliver superior durability, sealing, and performance under high stress.

Key Benefits:

  • Restores stable oil pressure and circulation.
  • Prevents leaks and contamination.
  • Enhances oil cooling efficiency and consistency.
  • Constructed from corrosion-resistant, heat-stable materials.
  • Direct-fit compatibility with a wide range of Porsche engines.
  • Ideal for restorations, rebuilds, and performance applications.

A properly maintained oil tank system is essential for ensuring engine longevity and reliability — particularly in performance and motorsport use.

Highlights:

  • Precision-engineered Porsche oil tanks and associated components.
  • Designed for consistent oil pressure and temperature control.
  • Durable materials for heat and corrosion resistance.
  • Direct-fit solutions for 911, Cayman, Boxster, GT models and more.
  • Perfect for rebuilds, restorations, and performance upgrades.
  • Ensures optimal lubrication and engine reliability.

You may also like
Popular Models