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Porsche > 964 (911) (1989-1994) > Engine Rebuild Parts > Oil System Parts >

Oil Filter Housing

Oil Filter Housing

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DISPLAYING 1 to 6 (of 6 products)
Oil Filter Housing / Bracket. Porsche 964 1989-94 - 96420702502, 96420702503
1
Oil Filter Housing / Bracket. Porsche 964 1989-94
Special Order item
96420702503
Product Information
Product Information
Oil Filter Housing / Bracket.

porsche

Fits:
Porsche 964 1989-94

Click picture for large parts diagram.
Diagram Ref No 47.

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Related, superseded, cross reference or alternative numbers for comparison.

96420702503
96420702502
96420702503

The product you are viewing cross references to these numbers
Oil Pipe Oil Filter Housing to Engine Porsche 964 1989-94 - 93020726112, 93020726113, 93020726114
3
Oil Pipe Oil Filter Housing to Engine Porsche 964 1989-94
Special Order item
93020726114
Product Information
Product Information
Oil Pipe Oil Filter Housing to Engine Porsche 964 1989-94

porsche

Fits:
Porsche 964 TURBO 1989-94 3.3L / 3.6L

Click pictrue for large parts diagram.
Diagram Ref No 54.

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Related, superseded, cross reference or alternative numbers for comparison.

93020726114
93020726112
93020726113
93020726114

The product you are viewing cross references to these numbers
Oil Pipe Oil Filter to Engine. Porsche 964 1989-94 - 96420725214, 96420725216
2
Oil Pipe Oil Filter to Engine. Porsche 964 1989-94
Special Order item
96420725216
Product Information
Product Information
Oil Pipe Oil Filter to Engine.

porsche

Fits:
Porsche 964 1989-94 (NOT TURBO ENGINES)

Click 'Zoom in' for large parts diagram.
Diagram Ref No 54.

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Related, superseded, cross reference or alternative numbers for comparison.

96420725216
96420725214
96420725216

The product you are viewing cross references to these numbers
Oil pipe oil filter to engine. Porsche 964 1989-94 - 96420725214, 96420725216 - 15171, HA DE 47 024
2
Oil pipe oil filter to engine. Porsche 964 1989-94
96420725216/1
Product Information
Product Information

Oil Pipe – Oil Filter Housing to Crankcase 

The Porsche 964 Oil Pipe connects the oil filter housing to the engine crankcase and forms an essential part of the Porsche 964 dry-sump lubrication system. This oil line allows filtered engine oil to be transferred efficiently into the crankcase, ensuring critical internal engine components receive the lubrication required for smooth operation, temperature control, and long-term reliability.

Fits:

  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93

Diagram Ref No 54

On the Porsche 964, maintaining proper oil circulation is vital. The dry-sump lubrication system relies on a network of precisely engineered oil pipes to move oil throughout the engine, filtration system, oil tank, and cooling circuit. A damaged, leaking, or corroded oil pipe can compromise oil flow, reduce oil pressure, and potentially expose the engine to severe wear or damage.

Whether you are carrying out preventative maintenance, restoring a classic Porsche 964, or rebuilding an engine, replacing ageing oil system components helps preserve engine performance and reliability.

What Does This Oil Pipe Do?

The oil filter housing to crankcase pipe transfers filtered oil directly into the engine lubrication circuit after it has passed through the oil filter assembly.

Its functions include:

  • Delivering filtered oil to the crankcase
  • Maintaining continuous lubrication throughout the engine
  • Supporting stable oil pressure
  • Assisting proper operation of the dry-sump lubrication system
  • Helping protect bearings, pistons, camshafts, and other critical components
  • Supporting engine cooling through effective oil circulation

Without reliable oil flow through this pipe, engine lubrication efficiency can be significantly affected.

Why Does This Oil Pipe Fail?

The oil pipe is exposed to constant heat cycles, oil pressure, engine vibration, and environmental contaminants. Over time, these conditions can contribute to deterioration.

Common causes of failure include:

  • Corrosion of metal pipe sections
  • Age-related material fatigue
  • Damage from road debris
  • Cracked or weakened connections
  • Oil leaks at joints or fittings
  • Vibration-related stress fractures
  • Damage during engine or oil system repairs
  • Seized fittings caused by corrosion

As Porsche 964 models continue to age, original oil lines are increasingly susceptible to wear and deterioration.

Common Symptoms of a Failing Oil Pipe

Signs that the oil filter housing to crankcase pipe may require replacement include:

  • Visible oil leaks
  • Oil residue around pipe connections
  • Corrosion or rust on pipe surfaces
  • Oil smells from the engine bay
  • Damaged or crushed pipe sections
  • Difficulty maintaining proper oil pressure
  • Seized or damaged fittings during servicing

Because this component carries pressurised engine oil, any leak should be addressed immediately to avoid potential engine damage.

When Should You Replace It?

Replacement is recommended when:

  • Oil leaks become visible
  • Corrosion is identified during inspection
  • Pipework becomes damaged or restricted
  • During engine rebuilds
  • During oil system refurbishment
  • While replacing oil filter housing components
  • As preventoative maintenance on ageing vehicles
  • During full restoration projectsil pipes

Replacing ageing before failure helps maintain oil pressure, improve reliability, and protect valuable engine components from unnecessary wear.




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

96420725216
96420725214
96420725216

The product you are viewing cross references to these numbers
Oil pipe thermostat to oil filter. Porsche 964 1989-94 - 96420725408, 96420725407, 96420725406, 96420725405, 96420725404, 96420725414
2
Oil pipe thermostat to oil filter. Porsche 964 1989-94
Special Order item
96420725414
Product Information
Product Information
Oil pipe thermostat to oil filter.

Fits:
Porsche 964 C2 / C4 / RS 1989-94

This product supersedes Porsche's old part numbers:
- 96420725404
- 96420725405
- 96420725406
- 96420725407

Diagram Ref No 46

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

96420725414
96420725408
96420725407
96420725406
96420725405
96420725404
96420725414

The product you are viewing cross references to these numbers
Oil pipe thermostat to oil filter. Porsche 964 1989-94 - 18227, 96420725408, 96420725407, 96420725406, 96420725405, 96420725404, 9600008, 964 207 254 08 - 19981
2
Oil pipe thermostat to oil filter. Porsche 964 1989-94
96420725414/1
Product Information
Product Information

Oil Pipe – Thermostat to Oil Filter 

The Porsche 964 Oil Pipe from the thermostat to the oil filter is a critical component within the engine's lubrication and oil cooling system. Designed specifically for Porsche 964 models produced between 1989 and 1994, this oil line transfers engine oil between the thermostat assembly and the oil filter housing, ensuring continuous oil circulation and filtration before oil is distributed throughout the engine.

Fits:

  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93

Diagram Ref No 46

The Porsche 964 relies on a sophisticated dry-sump lubrication system that not only lubricates critical engine components but also assists in engine cooling. This oil pipe plays an important role in maintaining correct oil flow, pressure, and filtration efficiency, helping to protect the engine under both normal driving and high-performance conditions.

Whether you are restoring a Porsche 964, rebuilding an engine, or repairing a leaking oil system, replacing ageing oil pipes is essential for maintaining reliability and preventing costly engine damage.

What Does This Oil Pipe Do?

The thermostat-to-oil-filter pipe forms part of the engine's oil circulation circuit.

Its primary functions include:

  • Transporting oil between the thermostat and oil filter housing
  • Maintaining uninterrupted oil flow through the lubrication system
  • Ensuring oil passes through filtration before recirculation
  • Supporting stable oil pressure throughout the engine
  • Assisting the operation of the Porsche dry-sump oil system
  • Helping maintain proper engine cooling and lubrication

Without a properly functioning oil pipe, oil flow can be compromised, placing the engine at risk of lubrication issues and overheating.

Why Does This Oil Pipe Fail?

The oil pipe operates in a demanding environment where it is constantly exposed to heat cycles, oil pressure, vibration, road contamination, and age-related deterioration.

Common causes of failure include:

  • Corrosion of metal pipe sections
  • External damage from road debris
  • Fatigue from vibration and engine movement
  • Deterioration of sealing surfaces
  • Cracked or weakened pipe connections
  • Oil contamination and sludge build-up
  • Damage during previous repairs or engine removal work
  • Age-related wear on original factory-installed lines

As the vehicle ages, corrosion and fatigue become increasingly common, particularly on original oil system components.

Common Symptoms of a Failing Oil Pipe

Signs that the thermostat-to-oil-filter pipe may require replacement include:

  • Visible oil leaks
  • Oil residue around the pipe or fittings
  • Corrosion on exposed metal sections
  • Reduced oil pressure
  • Oil smells from the engine bay
  • Damaged or crushed pipework
  • Difficulty removing seized fittings during servicing

Because the oil system is vital to engine protection, even small leaks should be addressed promptly.

When Should You Replace It?

Replacement is recommended when:

  • Oil leaks are present
  • Corrosion becomes visible
  • Pipe fittings become damaged or seized
  • During engine rebuilds
  • During oil thermostat replacement
  • During major oil system refurbishment
  • As part of preventative maintenance on ageing vehicles
  • During restoration projects where long-term reliability is a priority

Replacing ageing oil lines before failure helps prevent oil loss, lubrication issues, and expensive engine repairs.



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

96420725414
18227
96420725408
96420725407
96420725406
96420725405
96420725404
9600008
964 207 254 08

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
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About Oil Filter Housing

Engine Oil Filter Housings – Reliable Protection for Porsche Lubrication Systems

The engine oil filter housing plays a critical role in your Porsche’s lubrication system, securely enclosing the oil filter while regulating oil flow throughout the engine. It maintains proper pressure, prevents leaks, and ensures that oil is efficiently filtered before reaching critical moving components — protecting your engine from premature wear and contamination.

At Design911, we offer a comprehensive selection of oil filter housings and related components designed for long-lasting reliability and a perfect fit. Constructed from high-grade aluminium, reinforced polymers, or composite materials, these housings are engineered to deliver maximum durability, leak-free performance, and precise compatibility with Porsche engines.

Whether you’re servicing a modern 992 or maintaining a classic air-cooled 911, our oil filter housings provide dependable sealing, pressure stability, and performance that meets the demands of everyday and high-performance driving.

What Does an Oil Filter Housing Do?

The oil filter housing is responsible for mounting the oil filter securely and directing the flow of engine oil through it.

Core Functions:

  • Holds and seals the oil filter element in place.
  • Regulates oil pressure and flow within the lubrication circuit.
  • Prevents leaks through precision sealing surfaces.
  • Ensures filtered oil reaches all critical engine components.
  • Integrates with temperature and pressure sensors in some Porsche models.

A properly functioning oil filter housing ensures that the engine is always supplied with clean, well-pressurised oil — essential for longevity and consistent performance.

Why Do Oil Filter Housings Fail?

Due to constant exposure to heat, oil pressure, and vibration, oil filter housings can wear out or become damaged over time.

Common Causes of Failure Include:

  • Cracks or warping caused by heat cycles or over-tightening.
  • Degraded seals or O-rings, leading to leaks.
  • Contaminant build-up affecting oil pressure regulation.
  • Thread damage during filter installation or removal.
  • Material fatigue in older or high-mileage vehicles.

Symptoms of housing failure include oil leaks near the filter area, fluctuating oil pressure, or visible cracks, all of which can compromise lubrication and engine safety.

Why Replace Oil Filter Housings?

Replacing a worn or cracked oil filter housing ensures proper oil pressure, efficient filtration, and leak-free operation. Our precision-engineered housings are manufactured using advanced materials and modern casting or CNC machining techniques, guaranteeing reliability under all operating conditions.

Key Benefits:

  • Restores proper oil circulation and pressure balance.
  • Prevents oil leaks and contamination.
  • Improves filtration efficiency and engine protection.
  • Constructed from heat- and corrosion-resistant materials.
  • Direct-fit compatibility for a wide range of Porsche models.
  • Ideal for regular servicing, rebuilds, or preventive maintenance.

A replacement oil filter housing not only restores performance but also ensures the longevity of your Porsche’s engine and lubrication system.

Highlights:

  • High-quality Porsche oil filter housings and sealing components.
  • Precision-engineered for strength, heat resistance, and leak prevention.
  • Improves oil system reliability and efficiency.
  • Suitable for classic air-cooled and modern water-cooled Porsche models.
  • Direct-fit replacements for easy installation.
  • Perfect for rebuilds, maintenance, or performance servicing.

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