Oil Sump

Engine oil drain plug.



Fits:
Porsche 912 1965-69
Porsche 356 1950-59 1300 / 1500 / 1600 (not GS or GT)
Porsche 356 1960-65 1600 SC

Click 'Zoom in' for large parts diagram.
Diagram ref no 27

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PCG00113300

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Engine oil drain plug.

Fits:
Porsche 912 1965-69
Porsche 356 1950-59 1300 / 1500 / 1600 (not GS or GT)
Porsche 356 1960-65 1600 SC

Diagram ref no 27

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PCG00113300

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Billet Aluminium Oil Drain / Strainer Cover

Upgrade one of the most commonly disturbed sealing surfaces on your classic Porsche engine with this OE Match Billet Aluminium Oil Drain and Strainer Cover. Designed for all Porsche 356 and 912 engines using the 3-piece engine case, this upgraded cover is CNC machined from aluminium to provide a precise, perfectly flat contact surface.

Fits:

• Porsche 912 SWB 1965-1968 (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

Diagram ref no 31

The improved rigidity of the billet aluminium construction helps maintain an even sealing surface when installed, making it a worthwhile upgrade over an old, distorted or damaged original cover.

Magnet Installation

Please note that a magnet is not included with this cover.

The magnet from the existing oil strainer cover must be transferred to the new billet aluminium cover and secured using the supplied rivet.

This allows the original magnetic function to be retained while benefiting from the upgraded CNC-machined cover.

Finished in black for a discreet appearance, the cover can be installed using the original engine studs, with no longer replacement studs required.

What Does the Oil Strainer Cover Do?

The oil strainer cover is fitted to the underside of the engine and closes the opening for the engine oil strainer.

The strainer itself helps prevent larger particles and contaminants from circulating through the engine lubrication system, while the cover provides the sealing surface required to contain the engine oil.

Because the cover is removed during servicing and oil strainer maintenance, maintaining a flat and correctly sealed surface is particularly important.

A correctly fitted oil strainer cover helps:

• Seal the engine oil strainer opening
• Prevent engine oil leaks
• Secure the oil strainer assembly
• Provide access during oil system servicing
• Maintain the integrity of the engine lubrication system

Why Do Original Oil Strainer Covers Fail?

Original-style covers can become distorted after years of use and repeated removal and installation.

One of the most common problems is deformation around the mounting holes caused by repeated tightening of the retaining nuts. Once the plate is no longer completely flat, the gasket may struggle to seal evenly against the engine case.

Other causes of deterioration can include:

• Repeated tightening and removal
• Over-tightening of mounting hardware
• Distortion around the stud holes
• Damage to the sealing surface
• Corrosion and general age
• Scratches or previous incorrect installation

A distorted cover can contribute to the familiar oil seepage sometimes found around the bottom of older Porsche 356 and 912 engines.

Why Upgrade to Billet Aluminium?

The main advantage of this upgraded cover is its CNC-machined billet aluminium construction.

Rather than relying on a thinner plate that can become distorted over time, the billet design provides a rigid and accurately machined sealing surface.

Benefits include:

• CNC machined from aluminium
• Perfectly flat contact surface
• Increased rigidity
• Reduced tendency to distort
• Improved support for the sealing gasket
• Durable replacement for an ageing original cover
• Black finish for a discreet appearance
• Reuses the original mounting studs

For engines that are regularly serviced or have experienced persistent seepage around the strainer cover, upgrading to a rigid billet version can provide a more dependable foundation for achieving a good seal.

Installation

The 53901150 cover has been designed to fit using the original engine case studs.

There is no requirement to replace the standard studs with longer versions, simplifying installation and maintaining the original mounting arrangement.

Oil Strainer Covers, Drain Plates & Engine Lubrication Parts

Oil leaks around the lower engine area are a common concern when maintaining older Porsche 356 and 912 engines. While replacing gaskets is often the first step, a gasket cannot always compensate for a cover that has become warped or distorted.

A CNC-machined billet aluminium oil strainer cover provides a rigid, accurately machined sealing surface and is therefore a useful upgrade during an engine rebuild, restoration or routine oil system refurbishment.

When replacing the oil strainer cover, it is also worthwhile inspecting the strainer, gaskets, mounting hardware and surrounding sealing surfaces. Correct installation and tightening are important to avoid damaging components and to achieve an effective seal.

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53901150

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Billet Aluminium Oil Drain / Strainer Cover with Cooling Fins

Upgrade the engine lubrication system on your classic Porsche with this OE Match Billet Aluminium Oil Drain and Strainer Cover with 21 Cooling Fins.  Designed for all Porsche 356 and 912 engines using the 3-piece engine case, this upgraded cover is CNC machined from aluminium to provide a precise, perfectly flat contact surface.

Fits:

• Porsche 912 SWB 1965-1968 (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

Diagram ref no 31

The improved rigidity of the billet aluminium construction helps maintain an even sealing surface when installed, making it a worthwhile upgrade over an old, distorted or damaged original cover. In addition, 21 integral cooling fins increase the cover's external surface area, helping transfer heat from the engine oil to the surrounding airflow. This provides a useful additional oil-cooling effect while retaining a straightforward bolt-on installation.

Magnet Installation

Please note that a magnet is not included with this cover.

The magnet from the existing oil strainer cover must be transferred to the new billet aluminium cover and secured using the supplied rivet.

This allows the original magnetic function to be retained while benefiting from the upgraded CNC-machined cover.

Finished in black for a discreet appearance, the cover can be installed using the original engine studs, with no longer replacement studs required.

What Does the Oil Strainer Cover Do?

The oil strainer cover is located on the underside of the engine and closes the opening containing the engine oil strainer.

The strainer helps prevent larger particles and contaminants from circulating through the engine lubrication system, while the cover seals the assembly and keeps the engine oil contained.

Because this area is accessed during oil and strainer servicing, the condition and flatness of the cover are particularly important for achieving a reliable seal.

A correctly fitted oil strainer cover helps:

Seal the engine oil strainer opening Prevent oil leakage Secure the oil strainer assembly Provide access during oil system servicing Maintain the integrity of the lubrication system

What Do the 21 Cooling Fins Do?

This upgraded version incorporates 21 cooling fins directly into the aluminium cover.

The fins increase the surface area exposed to airflow underneath the vehicle. As heat passes from the engine oil into the aluminium cover, the increased surface area helps dissipate some of this heat into the surrounding air.

The fins therefore provide supplementary oil cooling without requiring an additional external oil cooler or major modifications to the engine.

This can be particularly useful on engines exposed to sustained higher temperatures during enthusiastic road driving or other demanding operating conditions.

Why Do Original Oil Strainer Covers Fail?

Original-style covers can deteriorate or become distorted after decades of use and repeated servicing.

One of the most common problems is deformation around the mounting holes caused by repeated tightening or previous over-tightening. Once the cover is no longer completely flat, the gasket may not be compressed evenly against the engine case.

Common problems include:

• Warping or distortion
• Deformation around mounting holes
• Over-tightened mounting hardware
• Damaged sealing surfaces
• Scratches and corrosion
• Repeated removal and installation
• General age-related deterioration

A distorted cover can contribute to oil seepage even when new gaskets are fitted.

Why Upgrade to a Billet Aluminium Version?

The major advantage of this upgraded cover is its rigid CNC-machined aluminium construction.

Machining the component provides a precise, flat sealing surface, helping the gasket sit evenly between the cover and engine case. The increased rigidity also makes the cover less prone to the distortion commonly found on older conventional drain plates.

Benefits include:

• CNC-machined aluminium construction
• Perfectly flat contact surface Increased rigidity
• Reduced tendency to distort
• Improved support for the sealing gasket 21 integrated cooling fins
• Additional oil heat dissipation
• Durable replacement for an ageing original cover
• Black finish
• Straightforward installation using original studs

For Porsche 356 and 912 engines suffering from a distorted original cover, or where improved oil cooling is desirable, the billet finned version combines improved sealing characteristics with an additional cooling function.

Easy Installation

The cover has been designed to fit using the original engine case studs.

No longer studs are required, helping maintain the original mounting arrangement and making this a straightforward upgrade during routine oil system servicing or an engine rebuild.

Finned Oil Strainer Covers & Engine Oil Cooling Upgrades

Maintaining effective lubrication and controlling engine oil temperature are important considerations for classic Porsche 356 and 912 engines.

Original oil strainer covers can become distorted after years of servicing, potentially making it difficult for the gasket to seal correctly. Replacing a warped cover with a CNC-machined billet aluminium version provides a flatter and more rigid sealing surface while retaining straightforward access to the oil strainer.

The addition of 21 cooling fins provides another useful advantage. By increasing the surface area of the aluminium cover exposed to airflow beneath the vehicle, additional heat can be dissipated from the oil system.

This makes the finned billet cover a practical upgrade for owners looking to combine improved sealing, increased component rigidity and supplementary oil cooling in a single direct-fit component.

When replacing the oil strainer cover, it is also worthwhile inspecting the oil strainer, gaskets, magnet, mounting hardware and engine case sealing surface before reassembly.

Related reference numbers
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53901150

The product you are viewing cross references to these numbers

High Performance Deep Oil Sump Kit with Hardware, Gasket and Magnetic Drain Plug for 356 and 912



Fits:
Porsche 912 1965-69
Porsche 356

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61610103999

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Nut for Oil Sump Plate

Fits:
Porsche 356
Porsche 911 1965-73

Diagram ref no 41

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N02214812

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Nut For Oil Sump Plate.
Maintain a secure, leak-free seal for your engine's lubrication system with this OE Match Nut for Oil Sump Plate, manufactured as a direct replacement. Produced to OE-style specifications, this fastening nut is designed to securely retain the oil sump plate, ensuring even clamping pressure and helping to prevent oil leaks during engine operation.

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 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65  

Diagram Ref No 41

During routine servicing, the original sump plate nuts can become corroded, damaged, rounded, or lose their clamping effectiveness after repeated removal and installation. Replacing worn or damaged hardware helps maintain the integrity of the sump plate seal and is recommended whenever the oil sump plate or gasket is removed. This OE Match component is ideal for routine maintenance, engine repairs, and Porsche restoration projects.  

What This Product Does:

• Secures the oil sump plate to the engine.
• Provides even clamping pressure across the sump plate.
• Helps maintain a leak-free seal with the sump gasket.
• Supports the integrity of the engine lubrication system.
• Replaces worn, corroded, or damaged original retaining hardware.
• Suitable for routine oil service and engine maintenance.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Corroded or damaged sump plate retaining nut.
• Rounded or worn threads.
• Difficulty achieving the correct tightening torque.
• Oil seepage around the sump plate due to uneven clamping.
• Missing retaining hardware.
• Fastener damage during servicing.
• Engine rebuild or oil sump plate refurbishment requiring new hardware.

Why Replacement Matters:

• The oil sump plate nut is a small but essential fastening component that ensures the sump plate is securely attached to the engine. Correct and even clamping pressure is vital for maintaining an effective seal and preventing engine oil leaks. A worn, damaged, or corroded nut can reduce clamping force, potentially allowing oil leakage and increasing the risk of engine damage if left unresolved.
• Replacing the oil sump plate nut helps ensure a secure installation whenever the sump plate is serviced, preserving the integrity of the lubrication system and supporting long-term engine reliability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match oil sump plate nut provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, engine repairs, and restoration projects.

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N02214812

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Oil strainer, Motorsports. 

Fits:
Porsche 356B Super 90 - 1959 to 1963
Porsche 356C Super 90 - 1963 to 1965

Diagram ref no 45

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61610103800

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Oil sump gasket.
Two required per car. Sold each.



Fits:
Porsche 356 preA - 1950–1955
Porsche 356 A T1 - 1955–1957
Porsche 356 A T2 - 1958–1959
Porsche 356 B T5 - 1960–1961
Porsche 356 B T6 - 1962–1963
Porsche 356 C - 1964–1965/66
Porsche 912 - 1965–1969

Click 'Zoom in' for large parts diagram.
Diagram ref no 33

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53901152

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Oil sump plate hardware kit.



Sump plate stud, nut & washer set. 40 piece set of nuts washers and proper length studs.

Fits:
Porsche 356
Porsche 912

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61606105401

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Oil sump screen with 16mm hole.


Fits:
Porsche 356 1950-65 all models
Porsche 912 1965-69

Click 'Zoom in' for large parts diagram.
Diagram ref no 32

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61610138000

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Oil sump screen with 16mm hole.

Fits:
Porsche 356 1950-65 all models
Porsche 912 1965-69

Diagram ref no 32

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61610138000

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Washer for Oil Sump Plate



Fits:
Porsche 356
Porsche 911 1965-73

Click 'Zoom in' for large parts diagram.
Diagram ref no 40.

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90002800801

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