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Oil Thermostat

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DISPLAYING 1 to 13 (of 13 products)
OILPIPEKIT03
Product Information
Product Information
Oil pipe kit engine bay

Fits:
Porsche 911 3.2 Carrera - 1984 to 1989

Kit Includes
Oil pipe - Engine to oil thermostat
Oil pipe - Oil thermostat to oil tank

Diagram Ref No 9 and 10

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OILPIPEKIT03
93010774315
93010774312
93010774311
91110773011
91110773010
91110773013

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93010774315
Product Information
Product Information
Oil Pipe Engine to Thermostat.

Fits:
Porsche 911 3.2L 1984-89

Diagram Ref No 9

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93010774315
93010774315
93010774312

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93010774315/1
Product Information
Product Information
Oil pipe engine to thermostat.

Fits:
Porsche 911 3.2L 1984-89

Diagram Ref No 9

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Related, superseded, cross reference or alternative numbers for comparison.

93010774315
93010774315
93010774312

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Special Order item
91110773013
Product Information
Product Information
Oil pipe oil tank to thermostat.

porsche

Fits:
Porsche 911 3.0L 1974-83
Porsche 911 3.2L 1984-89

OE Part numbers
- 91110773010
- 91110773011

Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.

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91110773013
91110773011
91110773010
91110773013

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91110773013/1
Product Information
Product Information
Oil pipe oil tank to thermostat.

Fits:
Porsche 911 3.0L 1974-83
Porsche 911 3.2L 1984-89

OE Part numbers
- 91110773010
- 91110773011

Diagram Ref No 17

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91110773013
91110773011
91110773010
91110773013

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90164163200
Product Information
Product Information
Oil temperature sensor. on crankcase.

Fits:

Porsche 911 /912 1969-76
Porsche 911 SC SPM 1978-83
Porsche 911 Turbo 3.0L 1975-77

Diagram Ref No 28

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90164163200
90164163200
90164163201

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93010715500
Product Information
Product Information
Oil thermostat insert.

porsche

Fits:
Porsche 911 1974-89
Porsche 930 Turbo 1975-89

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

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93010715500
93010715500

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93010715500/1
Product Information
Product Information
Oil thermostat insert.

mahle

Fits:
Porsche 911 1974-89
Porsche 930 Turbo 1975-89

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

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93010715500
93010715500

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93010776500
Product Information
Product Information
Oil thermostat on engine block.

porsche

Fits:
Porsche 911 1970-89
Porsche 911 (930) Turbo 1975-89
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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93010776500
93010776500
1.248.83
70809113

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93010776500/1
Product Information
Product Information
Oil thermostat on engine block.

mahle

Fits:
Porsche 911 1970-89
Porsche 911 (930) Turbo 1975-89
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 37

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93010776500
93010776500
1.248.83
70809113

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93010707600
Product Information
Product Information
Oil thermostat piston

porsche

Fits:
Porsche 911 1972-89

Click picture for large parts diagram.
Diagram Ref No 11.

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93010707600
93010707600

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93010701701
Product Information
Product Information
Oil thermostat. Fits to oil lines

porsche

Fits:
Porsche 911 1974-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.

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93010701701
16690
93010701700

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93010701701/1
Product Information
Product Information
Oil thermostat. Fits to oil lines

oematch

Fits:
Porsche 911 1974-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.

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93010701701
93010701700
93010701701
91110701501
91110701502
91110701503

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DISPLAYING 1 to 13 (of 13 products)
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About Oil Thermostat

Oil Thermostats – Precision Temperature Regulation for Porsche Engines

The oil thermostat plays a vital role in your Porsche’s lubrication and cooling system by controlling oil flow based on temperature. It ensures that your engine oil warms up quickly to the ideal operating temperature and maintains stability during demanding driving conditions. This optimised oil temperature improves performance, efficiency, and long-term engine protection.

At Design911, we supply a range of oil thermostats and related components designed for reliability and accuracy across both classic and modern Porsche models. Manufactured using high-quality heat-resistant alloys and durable seals, our thermostats guarantee smooth operation, consistent flow control, and a perfect fit for your Porsche’s lubrication system.

Whether you’re maintaining a 911, Cayman, or Panamera, our oil thermostats deliver the precise temperature regulation your engine demands for both everyday use and performance driving.

What Do Oil Thermostats Do?

An oil thermostat regulates when oil is diverted through the oil cooler, based on temperature readings.

Core Functions:

  • Control oil flow between the engine and the oil cooler.
  • Ensure rapid oil warm-up to reduce cold-start wear.
  • Maintain stable operating temperatures during all conditions.
  • Protect against overheating under high loads.
  • Support optimal lubrication and efficiency.

By keeping oil within the correct temperature range, the thermostat helps your Porsche achieve consistent performance, better fuel economy, and extended engine life.

Why Do Oil Thermostats Fail?

Over time, continuous exposure to high temperatures, oil contamination, and mechanical wear can cause oil thermostats to degrade or malfunction.

Common Causes of Failure Include:

  • Sticking or seized valves due to sludge or varnish build-up.
  • Thermal fatigue from repeated heating and cooling cycles.
  • Cracked housings or worn seals, leading to leaks.
  • Oil contamination affecting thermal response.
  • Improper temperature regulation, causing overheating or slow warm-up.

Signs of a failing thermostat include oil temperature fluctuations, overheating, or delayed oil circulation, which can result in reduced engine protection and performance.

Why Replace Oil Thermostat Components?

A faulty thermostat can cause erratic oil flow, engine wear, or overheating. Replacing it with a high-quality, precision-engineered unit ensures reliable temperature control, smoother oil circulation, and consistent lubrication.

Key Benefits:

  • Restores accurate oil temperature regulation.
  • Prevents overheating and cold-start damage.
  • Improves oil flow and engine efficiency.
  • Built from heat- and corrosion-resistant materials.
  • Direct-fit compatibility with a wide range of Porsche models.
  • Ideal for servicing, engine rebuilds, or performance upgrades.

Replacing an ageing thermostat is an essential part of maintaining your Porsche’s lubrication system and preventing premature engine wear.

Highlights:

  • Precision-engineered Porsche oil thermostats for reliable control.
  • Ensures optimal oil flow and temperature regulation.
  • Constructed from premium heat-resistant materials.
  • Direct-fit design for 911, Cayman, Boxster, Panamera and more.
  • Ideal for routine maintenance or high-performance applications.
  • Maintains peak engine performance and longevity.

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