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Oil Tank & Parts
By OE Match
- 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 (1970-1976)
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
The product you are viewing cross references to these numbers
- 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)
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
The product you are viewing cross references to these numbers
- 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)
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
The product you are viewing cross references to these numbers
- 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 914 (1970-1976)

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
The product you are viewing cross references to these numbers
OEMatch Oil Tank & Parts — Fit, Function, Confidence
OEMatch Oil Tank & Parts restore and manage lubrication for Porsche models with dry-sump systems, supporting both classic air-cooled engines and contemporary water-cooled designs. OEMatch supplies a wide selection drawn from a catalogue of over 4,000 individual part numbers and more than 8,700 OE cross-references, covering tanks, fittings, caps, hoses and mounting hardware. OEMatch Oil Tank & Parts components are compatible replacements engineered to original-spec dimensions and tolerances — a practical option when genuine or OEM parts are unavailable.
Available Types
- Aluminium engine oil tanks and reservoirs
- Oil tank caps, breather assemblies and sealing gaskets
- Feed, return and breather hoses with fittings
- Mounting brackets, seals, clamps and tank fittings
Understanding OEMatch Oil Tank & Parts
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original oil tank & parts.
OE (Original Equipment) refers to parts matching original specifications for the oil tank & parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM oil tank & parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
The oil tank acts as the reservoir in a dry-sump lubrication system, keeping oil separate from the crankcase to prevent aeration and to ensure steady pressure during heavy cornering, braking or acceleration. Supporting components such as caps, breathers, hoses and fittings route oil correctly, maintain seals and allow the system to vent and return oil without foaming. Materials are chosen for heat resistance and corrosion protection to withstand the operating environment.
Benefits Include
- Restores stable oil pressure and consistent circulation
- Reduces risk of aeration and oil starvation under high G-loads
- Improves oil cooling and helps protect engine components
Why Oil Tank & Parts Wear and Fail
- Corrosion or internal contamination from moisture and sludge
- Cracks, punctures or impact damage from vibration or debris
- Worn seals, damaged caps or degraded hoses causing leaks
- Blocked breathers or feed lines restricting oil flow
The Importance of Replacing with OEMatch Oil Tank & Parts
Worn or leaking oil tanks and associated parts compromise lubrication and can lead to fluctuating oil pressure, overheating and increased wear. Replacing degraded tanks, seals and hoses restores proper oil management, prevents contamination and helps maintain engine longevity and reliability for road and motorsport use. Choosing correctly sized, well-sealed components reduces the chance of leaks and avoids secondary damage.
Advantages
- Durable, heat-stable materials selected for long service life
- Designed for fit with Porsche mounting points and system layouts
- Suitable for restorations, rebuilds and performance installations