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Porsche > 911 & 912 (1965-1989) > Engine Rebuild Parts > Oil System Parts >

Oil Tank & Parts

Oil Tank & Parts

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DISPLAYING 65 to 80 (of 98 products)
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Oil Tank Cap. Porsche 912 / 911 1972 / 356 - PCG20727100, 1613600200
3
Oil Tank Cap. Porsche 912 / 911 1972 / 356
Special Order item
PCG20727100
Product Information
Product Information
Oil Tank Cap.

porsche

Fits:
Porsche 912 1965-69
Porsche 911T-E/E/S 1972 (rear wing filler type cars)
Porsche 911 T-V 1972 (rear wing filler type cars)
Porsche 356 CARRERA 1500 GS/GT 1950-59
Porsche 356 B/C 1960-65

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

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PCG20727100
PCG20727100
1613600200

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Oil tank cap. Porsche 912 / 911 1972 / 356 - PCG20727100 - PCG20727100, 1613600200
2
Oil tank cap. Porsche 912 / 911 1972 / 356
PCG20727100/1
Product Information
Product Information
Oil Tank Cap.

The OE Match Oil Tank Cap is a premium-quality replacement engine oil filler cap designed to provide a secure, leak-free seal for the engine oil tank on compatible Porsche models. Manufactured to OE specifications for fit, sealing performance and durability, this oil tank cap prevents oil leakage and contamination while maintaining the correct pressure within the engine lubrication system.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 356 1950-55Porsche 356A 1955-59
  • Porsche 356B 1959-63Porsche 356C 1963-65  

Diagram Ref No 24

Manufactured from high-quality automotive-grade materials with an integrated oil-resistant sealing gasket, the cap is engineered to withstand continual exposure to engine oil, heat, vibration and harsh engine bay conditions. Precision-moulded to OE dimensions, it provides direct OE-style fitment and a positive locking action, making it the ideal replacement for worn, damaged or missing original oil tank caps.  

What This Product Does:
  • Seals the engine oil tank securely.
  • Prevents engine oil leaks from the filler neck.
  • Protects the lubrication system from dirt, dust and moisture.
  • Helps maintain correct crankcase and oil system integrity.
  • Provides a secure locking fit during vehicle operation.
  • Supports reliable engine lubrication.
  • Restores factory sealing performance.
  • Forms an essential part of the engine lubrication system.

Symptoms Of Wear Or Failure:
  • Engine oil leaking around the filler neck.
  • Oil residue on or around the oil tank.
  • Loose or poorly fitting oil cap.
  • Cracked or damaged cap housing.
  • Perished, flattened or missing sealing gasket.
  • Oil smell from the engine bay.
  • Dirt or moisture entering the oil tank.
  • Difficulty securing the cap correctly.
  • Visible wear or deterioration due to heat exposure.
  • Engine bay contamination caused by oil seepage.

Why Replacement Matters:
  • The oil tank cap is continually exposed to engine heat, oil vapours, vibration and repeated removal during servicing. Over time, the sealing gasket can harden or deteriorate, while the cap itself may crack, warp or lose its ability to lock securely.
  • A faulty oil tank cap can allow oil to leak from the filler neck, creating engine bay contamination and increasing the risk of low oil levels. It can also permit dirt, moisture and other contaminants to enter the lubrication system, potentially accelerating engine wear and reducing long-term reliability.
  • Replacing a worn or damaged oil tank cap restores a secure, leak-free seal and helps maintain the integrity of the engine lubrication system. The OE Match Oil Tank Cap is manufactured to OE standards using premium-quality materials, providing factory-style fitment, dependable sealing performance and long-lasting durability, ensuring the reliability and protection expected from your Porsche.



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PCG20727100
PCG20727100

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Oil tank drain plug washer. Porsche 911 1965-73 - 90012301130 - 90012301130
1
Oil tank drain plug washer. Porsche 911 1965-73
Special Order item
90012301130::1
Product Information
Product Information
Oil tank drain plug washer. 

porsche

Fits:
Porsche 911 1965-73

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90012301130
90012301130

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Oil Tank Drain Plug Washer. Porsche 911 1970-89 - 90012301120
2
Oil Tank Drain Plug Washer. Porsche 911 1970-89
Special Order item
90012301120::1
Product Information
Product Information
Oil Tank Drain Plug Washer.
This Porsche Genuine OE Oil Tank Drain Plug Washer is a factory-specified sealing washer designed for the oil tank drain plug used on classic air-cooled Porsche 911 models. Manufactured to Porsche’s original specifications, this washer ensures a reliable seal between the drain plug and the oil tank, preventing oil leaks during engine operation or after routine oil changes.
Sold each

Fits:
Porsche 911 1970 - 1989

Diagram ref no 12.

This drain plug washer acts as a compressible sealing ring that sits between the oil tank drain plug and the oil tank surface. When the drain plug is tightened, the washer compresses slightly to create a tight oil-resistant seal, preventing oil from leaking around the plug threads.

It is designed to withstand high temperatures, engine oil exposure, and repeated service cycles, making it essential for maintaining a clean and leak-free lubrication system.

Fitment / Position on Car
•  Installed on: Oil tank drain plug
•  Location: Between the drain plug head and oil tank surface
•  System: Dry-sump engine oil lubrication system used in classic 911 models

During an oil change, the drain plug washer compresses to create a seal. Reusing old washers can lead to oil seepage, contamination, or loose sealing surfaces. Installing a new genuine Porsche washer ensures a proper seal every time the drain plug is removed and reinstalled, protecting both the engine and surrounding components from oil leaks.

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90012301120
90012301120

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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.

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91110717603
91110717603
91110717602
90110717600
90110717601

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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.

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91110717603
91110717603
91110717602
90110717600
90110717601

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Oil Tank Filler Bowl. Porsche 911 1972 - 91150307601 - PP229B, P229B
3
Oil Tank Filler Bowl. Porsche 911 1972
91150307601/1
Product Information
Product Information
Oil Tank Filler Bowl.

Fits:
Porsche 911 - 1972

Diagram Ref No 1

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91150307601
91150307601

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Oil tank filler neck. Porsche 911 65-71 - 90110764002
3
Oil tank filler neck. Porsche 911 65-71
Special Order item
90110764002
Product Information
Product Information
Oil tank filler neck.

porsche

Fits:
Porsche 911 1965-71

Click 'Zoom in' for large parts diagram.
Diagram ref no 30

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90110764002
90110764002

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Oil tank filler neck. Porsche 911 65-71 - 90110764002, 1613600300 - 1613600300
2
Oil tank filler neck. Porsche 911 65-71
90110764002/1
Product Information
Product Information
Oil tank filler neck.

dansk

Fits:
Porsche 911 2.0L-2.2L 01/1963-07/1971

Click 'Zoom in' for large parts diagram.
Diagram ref no 30

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90110764002
90110764002
1613600300

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Oil Tank Filler Pot. Porsche 911 1972 - 91150307601
3
Oil Tank Filler Pot. Porsche 911 1972
Special Order item
91150307601
Product Information
Product Information
Oil Tank Filler Pot.

Fits:
Porsche 911 - 1972

Diagram Ref No 1

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91150307601
91150307601

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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.

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91110719203
91110719203

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Oil tank gasket. Porsche 911 1973-89 / 930 1975-89 - 91110719203 - 911 107 192 03, 1612950300
3
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

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91110719203
91110719203

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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

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90110766100
90110766100

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Oil Tank Mounting Washer. Porsche 911 1965-89 - 90110769200 - 1612950900, 9400133
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
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90110769200
90110769200

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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.       



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90110769301
90110769301

The product you are viewing cross references to these numbers
Oil Tank Restaining Strap. Porsche 911 1972 - 91120707000
2
Oil Tank Restaining Strap. Porsche 911 1972
Special Order item
91120707000
Product Information
Product Information
Oil Tank Restraining Strap.

porsche

Fits:
Porsche 911 1972

Click 'Zoom in' for large parts diagram.
Diagram ref no 26

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91120707000
91120707000

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DISPLAYING 65 to 80 (of 98 products)
<< 4 5 6 7
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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.

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