do not press the back button…
-
Engine Parts
-
- Engine Rebuild Parts Oil System Parts Fuel System Parts Gaskets & Sets Radial Seal / RMS / Camshaft / Balance shaft Belts / Tensioners / Rollers Chains & Tensioners Timing covers and gaskets Engine Bearings / Shells Engine Valves / Guides / Springs Engine Bolts / Studs Engine Mounts Piston Rings Engine Cylinders / Liners / Pistons Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts Turbo Chargers / Intercoolers & Parts Air Intake & Injection Vacuum Pump All Categories
-
Brakes
-
- Brakes Brake Pads & Disc Package Brake Disc Standard Brake Pads Standard SPORTS Brake Disc Brembo Standard brakes Brembo Racing brakes TEXTAR Brakes PAGID Racing Brakes Zimmermann Brakes Performance Friction Brakes Giro Slotted Brake Disc SHW Performance Brakes EBC Brakes Surface Transforms Ceramic Brakes Replacement for Ceramic Disc Brake Pad Wear Sensors Brake Pad Anti-vibration shims Caliper Bolts / Disc Screws Pin Kit and Guide Plates Performance Brake Hoses Standard Brake Hoses Caliper and Brake Lines All Categories
-
-
Suspension & Steering
-
Transmission
-
- Gearbox / Transmission Clutch Kits Clutch Kits - High Performance Clutch Friction Plate Clutch Pressure Plate Clutch Release Bearings Clutch Guide Tube Clutch Forks & Levers Clutch Bolts Gearbox Parts Driveshafts & Parts Gasket Sets / Gaskets / Seals / Lock Nuts Gearbox Mounts Gearshift Control Parts Flywheel / Torque CV Joints Kits CV Boots and Kits Cardan Shaft / Prop Shaft Transmission Parts Gearbox / Differential Oil Gearbox Sump / Oil Pan Front Differential Rear Differential All Categories
-
- Cooling & Heating
-
Electrical & Lighting
-
- Electrical & Relays Brake Light Switch Hazard Warning Switch Handbrake Switch Reverse Light Switch Window Switch Window Mechanism Wiper Motor Electric Horn SmartTop Control Units Ignition Switch Indicator / Wiper Stalk Switch Relays / Fuses Washer pumps / bottles / jets Alarms / Security / Central Locking Electronic Control Units Dashboard / Console Parts & Switches Door Mirror Switch Bonnet / Rear Lid / Spoiler Activators & Motors Air Bags & Parts Tracker Cruise Control Connector housing All Categories
-
-
Body & Exhaust
-
- Chassis / Bodywork Restoration Chassis / Repair Panels Front Lid Damper Rear Lid Damper Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Rear lid / Tailgate Bumpers Front Bumpers Rear Door Handles | Locks | Keys Door Panels | Hinges | Striker Plates Window Lifters | Motors Wings Front & Parts Side Sill Panels Exterior Chassis Mouldings Mirrors & Parts Stone Chip Foils / Stickers Undertrays Chassis & Engine Front Wiper Arms & Blades Rear Wiper Arms & Blades Wheel Arch Liners & Covers Roof - Cabrio / Targa / Coupe / Speedster Roll Cages All Categories
-
-
Lubricants & Fluids
-
- Service Parts Service Kits Oil Filters Air Filters Pollen/Particle Filters Fuel Filters Belts All Types Spark Plugs Ignition Coils Front Wiper Arms & Blades Rear Wiper Arms & Blades Gearbox Service Parts Engine Oil & Lubricants - Mobil Engine Oil & Lubricants - Total Engine Oil & Lubricants - Castrol Engine Oil & Lubricants - Motul Engine Oil & Lubricants - Millers Oils NanoDrive Engine Oil & Lubricants - Millers Oils Fuel Additives Coolant / Antifreeze Power Steering Oil Garage PPE
-
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Engine Tuning Exhausts Exterior Styling / Spoilers Gearbox / Transmission Heating / Air Conditioning Hydraulics Interior & Accessories Incar / Multimedia Lighting Mats & Carpets Motorsport and Off-Road Pedal Cluster Rubber Seals Seats & Seat Belts All Categories
-
- Back to main website
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Oil Thermostat
Oil Thermostat
There are no products in this section at this time
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.
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed