Porsche > Cayenne 9YA 2018-2023 > 9YA Cayenne S V6 2.9L Petrol 440Hp 2018-23 > Engine Cooling > Thermostat / Temperature Sensor >

Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992 ❭ 9A712111000

Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992 - 40400009, 9A110622603, 9A110622602, 9A712111000, 0PB121110A

3 3 3

OE Match

9A712111000/1

Product Information

The engine coolant thermostat is a small but essential component that regulates coolant flow through your engine. When the engine is cold, the thermostat remains closed to restrict coolant circulation, allowing the engine to reach its optimal operating temperature more quickly. Once the desired temperature is achieved, it opens to maintain consistent cooling and prevent overheating. Products ref no. 9A712111000 which supersedes from old part numbers 9A110622602 & 9A110622603

Installation Tip: Always position the thermostat’s jiggle pin (bleed valve) at the 12 o’clock position when possible, to ensure proper air bleeding.

Thermostat Temperature Ratings

Many vehicles offer thermostats with different temperature ratings. These ratings indicate the temperature at which the thermostat begins to open.

In colder climates, a higher temperature thermostat helps the engine maintain warmth. In hot desert climates, a lower temperature thermostat may be preferred to enhance cooling efficiency.

Fits:

Porsche Boxster 981 2.7L 2012-16
Porsche Boxster 981 S / GTS 3.4L 2012-16
Porsche Boxster 718 2.0L Manual (300 Bhp)
Porsche Boxster 718 2.0L PDK (300 Bhp)
Porsche Boxster S 718 2.5L Manual (350 Bhp)
Porsche Boxster S 718 2.5L PDK (350 Bhp)
Porsche Boxster T 718 2.0L Manual (300 Bhp)
Porsche Boxster T 718 2.0L PDK (300 Bhp)
Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
Porsche Boxster GTS 718 4.0L Manual (400 Bhp)
Porsche Boxster GTS 718 4.0L PDK (400 Bhp)
Porsche Boxster Spyder 718 4.0L (420 Bhp)
Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Porsche 992.1 Carrera 2 3.0L 2019-24
Porsche 992.1 Carrera 4 3.0L 2019-24
Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
Porsche 992.1 Targa 4 3.0L 2020-24
Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
Porsche 992.1 Turbo 3.8L 2020-24
Porsche 992.1 Turbo S 3.8L 2020-24
Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
Porsche 992.2 Carrera 2 3.0L 2024>>
Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S / GTS 3.4L 981 2013-16
Porsche Cayman GT4 3.8L 2015-16
Porsche Cayman 718 2.0L Manual (300Bhp)
Porsche Cayman 718 2.0L PDK (300Bhp)
Porsche Cayman S 718 2.5L Manual (350Bhp)
Porsche Cayman S 718 2.5L PDK (350Bhp)
Porsche Cayman T 718 2.0L Manual (300Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

Diagram ref no 20

Common Thermostat Failures

Thermostat Stuck Open (Most Common) The thermostat fails to close, causing continuous coolant flow even when the engine is cold. This prevents the engine from reaching normal operating temperature, often leading to poor fuel economy, rich air-fuel mixtures, and potential catalytic converter damage. Thermostat Stuck Closed The thermostat fails to open, restricting coolant flow through the engine. This results in overheating and may cause severe or even catastrophic engine damage.

Signs of a Failing Engine Coolant Thermostat

Engine overheating Engine not reaching optimal operating temperature Radiator fan not engaging properly

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

9A712111000

40400009

9A110622603

9A110622602

9A712111000

0PB121110A

The product you are viewing cross references to these numbers