do not press the back button…
-
Engine Parts
-
- Engine Cooling Coolant Hoses and Pipes (Front engine cars) Coolant Hoses and Pipes (Rear engine cars) Water / Coolant Radiators Track & Race Coolant Radiators Water / Coolant Pumps Coolant Bottles / Expansion Tanks Thermostat / Temperature Sensor Oil Radiators / Heat Exchangers Oil System & Pipes Oil Tank Air cooling parts All Categories
-
- Engine Rebuild Parts Intermediate shaft (IMS) 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 Rocker Arms & Tappets Engine Bolts / Studs Engine Mounts Piston Rings Engine Cylinders / Liners / Pistons Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Camshafts Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts All Categories
-
-
Brakes
-
- Brakes Brake Pads & Disc Package SPORTS Brake Pads & Disc Package Brake Pads Packages Brake Disc Standard Brake Pads Standard SPORTS Brake Disc Brembo Standard brakes Brembo Racing brakes TEXTAR Brakes PAGID Racing Brakes Manthey Racing Brake Pads Zimmermann Brakes Performance Friction Brakes Giro Slotted Brake Disc Wilwood Disc Brakes SHW Performance Brakes EBC Brakes Black Diamond Performance Brakes O-Brake Brake Discs Surface Transforms Ceramic Brakes Rotinger Graphite Line Replacement for Ceramic Disc All Categories
-
-
Suspension & Steering
-
Transmission
-
- Gearbox / Transmission Clutch Kits Clutch Kits - High Performance Clutch Friction Plate Clutch Pressure Plate Clutch Release Bearings Clutch Cables & Parts Clutch Guide Tube Clutch Ring Gear 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 All Categories
-
-
Cooling & Heating
-
- Heating / Air Conditioning Air con condensers & desiccators Air con evaporators & expansion valves Air con pipes Air con belts Fans & cowlings Relays / Sensors / Resistors Compressors Heater flaps Blower Motors & Fans Heater blowers Heater hoses & pipes Heat Exchanger Heater cables Vents / Grilles Climate Control Temperature Sensors / Switches Heating / Air conditioning Housings Auxiliary coolant pump
-
-
Electrical & Lighting
-
- Electrical & Relays Fuel Pumps Brake Light Switch Brake & Clutch Switch Hazard Warning Switch Handbrake Switch Reverse Light Switch Headlamp Switch Window Switch Window Motors Window Mechanism Wiper Motor Wiper Mechanism Electric Horn SmartTop Control Units Ignition Switch Seat Switch Indicator / Wiper Stalk Switch Roof / Sun Roof Switch Relays / Fuses Washer pumps / bottles / jets Alarms / Security / Central Locking Electronic Control Units 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 Wings Rear & 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 All Categories
-
-
Exhausts
Standard Silencers / Mufflers
Sport Silencers / Mufflers
Switchable Silencers / Mufflers
Exhaust for Body Conversion
1 IN / 1 OUT
Standard Silencers 1 IN / 1 OUT
Sports Silencers 1 IN / 2 OUT
Sports Silencers 2 IN / 1 OUT
Standard Silencers 2 IN / 1 OUT
Sport Silencers 2 IN / 2 OUT
Standard Silencers 2 IN / 2 OUT
Sport Silencers All Categories
-
Exhausts
Standard Silencers / Mufflers
Sport Silencers / Mufflers
Switchable Silencers / Mufflers
Exhaust for Body Conversion
1 IN / 1 OUT
-
-
Lubricants & Fluids
-
- Service Parts Service Kits Service Kits OE Parts Oil Filters Air Filters Pollen/Particle Filters Fuel Filters Belts All Types Spark Plugs IRIDIUM POWER Spark Plugs IRIDIUM RACING Spark Plugs Ignition Coils Front Wiper Arms & Blades Rear Wiper Arms & Blades Gearbox Service Parts Porsche Classic Motor oil 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 All Categories
-
-
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 Parts for Other Cars Pedal Cluster Rubber Seals 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.
Water Coolant Hose. Porsche 997.2 GT3 / GT3 RS ❭ 99710635790
- Porsche 997 MKII GT3 / GT3 RS 2010-11
Coolant Hose
Maintain the performance and reliability of your Porsche's cooling system with this OE Match Water Coolant Hose.. Manufactured to original equipment specifications, this premium-quality replacement hose ensures efficient coolant circulation, helping your GT3 maintain optimum operating temperatures in both everyday road use and high-performance driving.
Fits:
- Porsche 997 MKII GT3 / GT3 RS 2010-11
Diagram ref no 24
The cooling system of the Porsche 997 GT3 is designed to operate under high temperatures and pressures, particularly during spirited driving and track use. Coolant hoses play a vital role by transporting coolant between key engine and cooling system components, ensuring heat is efficiently transferred away from the engine. A deteriorated or leaking hose can quickly result in coolant loss, overheating and potentially severe engine damage.
Manufactured from high-quality reinforced rubber compounds, this OE Match coolant hose offers excellent resistance to heat, pressure, coolant additives and ageing, providing long-lasting durability and OE-quality fitment.
What Does the Water Coolant Hose Do?
The coolant hose forms part of the engine's closed cooling circuit, allowing coolant to circulate between the engine, radiator and associated cooling components.
Its primary functions include:
- Transporting coolant throughout the cooling system.
- Maintaining consistent engine operating temperatures.
- Preventing engine overheating.
- Supporting efficient radiator performance.
- Maintaining cooling system pressure.
- Helping maximise engine reliability and performance.
A correctly functioning coolant hose is essential for keeping the high-performance Mezger engine operating within its designed temperature range.
Why Do Coolant Hoses Fail?
Coolant hoses are exposed to constant heat, pressure and vibration, causing them to deteriorate over time.
Common causes of failure include:
- Age-related rubber hardening.
- Internal degradation from coolant chemicals.
- Heat cycling.
- Swelling or softening of the hose material.
- Cracking caused by age.
- Abrasion against surrounding components.
- Failure of hose connections or clamps.
Replacing ageing coolant hoses as part of preventative maintenance helps avoid unexpected breakdowns and costly engine repairs.
Symptoms of a Failing Coolant Hose
Typical warning signs include:
- Coolant leaks beneath the vehicle.
- Low coolant level warnings.
- Cracks or splits in the hose.
- Bulging or soft sections.
- White or pink coolant residue around hose connections.
- Sweet smell of coolant.
- Rising engine temperatures.
- Steam from the engine bay.
If any of these symptoms are present, the hose should be replaced immediately.
When Should the Water Coolant Hose Be Replaced?
Replacement is recommended when:
- Coolant leakage is detected.
- The hose becomes cracked or swollen.
- During major cooling system servicing.
- Replacing the water pump or thermostat.
- Carrying out an engine rebuild.
- As preventative maintenance on higher mileage vehicles.
Replacing worn hoses helps maintain cooling system integrity and protects the engine from overheating.
Why Choose an OE Match Water Coolant Hose?
Our OE Match coolant hose is manufactured to closely match the original Porsche specification for reliable performance and straightforward installation.
Benefits include:
- OE-quality fit and finish.
- Reinforced high-temperature rubber construction.
- Resistant to coolant additives and pressure.
- Excellent flexibility and durability.
- Direct fit with factory cooling system connections.
- Reliable long-term sealing performance.
- Ideal for servicing, repairs and preventative maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710635790
The product you are viewing cross references to these numbers
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed