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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram
Porsche specialists based in the UK

Original Porsche Part Genuine Porsche part 0PB121110A

Original Porsche Part 0PB121110A
Code: 0PB121110A
Genuine Porsche part
Original Porsche Part
The product code 0PB121110A was also found on these diagrams
105-000 - thermostat
Engine 991 (911) MK1 2012-2016
Coolant pump / thermostat housing 991.1 2012-16
105-000 - thermostat
Engine 991 (911) MK1 2012-2016
Coolant pump / thermostat housing 991 Turbo / GT2 RS 2014-20
105-000 - thermostat
Engine 991 (911) MK2 2016-2019
Coolant pump / Thermostat housing 991.2 Carrera 2017-19
105-000 - thermostat
Engine Boxster 986/987/981 (1997-2016)
Coolant pump / Thermostat housing 981 Boxster / Boxster S 2012-16
105-000 - thermostat
Engine Boxster 986/987/981 (1997-2016)
Coolant pump / Thermostat housing 981.SP Boxster Spyder 2016
105-000 - thermostat
Engine Boxster 718 (982) 2017>>
Coolant cooling system / Coolant pump / Thermostat housing / Assembly carrier 718 (982) Boxster 2017>>
105-001 - thermostat
Engine Boxster 718 (982) 2017>>
Coolant pump 718 (982) Boxster GTS 4.0L 2017>>
105-000 - thermostat
Engine Cayman 987C/981C (2005-2016)
Coolant pump / Thermostat housing 981C Cayman / Cayman S 2014-16
105-000 - thermostat
Engine Cayman 987C/981C (2005-2016)
Coolant pump / Thermostat housing 981C Cayman GT4 2016
105-000 - thermostat
Engine Cayman 718C (982C) 2017>>
Coolant cooling system / Coolant pump / Thermostat housing / Assembly carrier 718C (982C) Cayman 2017>>
105-001 - thermostat
Engine Cayman 718C (982C) 2017>>
Coolant pump 718C (982C) Cayman GTS 4.0L 2017>>
Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.
Related products
Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992 - 9A110622603, 9A110622602, 9A712111000, 40400009, 0PB121110A
2
Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992
Special Order item
0PB121110A
Product Information
Product Information
Water pump thermostat.

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

Old Porsche part numbers:
- 9A110622602
- 9A110622603

Diagram ref no 20

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

0PB121110A
9A110622603
9A110622602
9A712111000
40400009
0PB121110A

The product you are viewing cross references to these numbers
Water guide housing with thermostat. Porsche 991 - 9A110601204, 9A110601203, 9A110601202, 9A110601201, 0PB121115
3
Water guide housing with thermostat. Porsche 991
Special Order item
0PB121115
Product Information
Product Information
Water guide housing with thermostat.

porsche

Fits:
Porsche 991.1 Carrera 2014-16
Porsche 991.2 Carrera 2017>>
Porsche 997.1 Turbo 2014-16
Porsche 997.2 Turbo / S 2017>>
Porsche 997.2 GT2 RS 2018>>
Porsche 997.2 Turbo Exclusive 2018>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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

0PB121115
9A110601204
9A110601203
9A110601202
9A110601201
0PB121115

The product you are viewing cross references to these numbers
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991 - 9A110632500, 0PB121139
2
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991
Special Order item
0PB121139
Product Information
Product Information
Water pump tube gasket.

porsche

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

0PB121139
9A110632500
0PB121139

The product you are viewing cross references to these numbers
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991 - 9A110632500, 0PB121139, 273.730
3
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991
0PB121139/1
Product Information
Product Information
Water pump tube gasket.

elring

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

0PB121139
9A110632500
0PB121139
273.730

The product you are viewing cross references to these numbers
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991 - 9A110632600, 0PB121149, 273.750
2
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991
Special Order item
0PB121149
Product Information
Product Information
Water pump tube gasket.

porsche

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

0PB121149
9A110632600
0PB121149
273.750

The product you are viewing cross references to these numbers
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991 - 9A110632600, 0PB121149, 273.750
2
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991
0PB121149/1
Product Information
Product Information
Water pump tube gasket. Porsche Boxster / Cayman / 997 / 991

elring

Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987.2 Cayman 2009-12
Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 991.1 Carrera / Turbo 2013-16
Porsche 991.2 Carrera / Turbo 2017>>
Porsche 991 GT3 / GT3 RS / R 2014-17

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

0PB121149
9A110632600
0PB121149
273.750

The product you are viewing cross references to these numbers
Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992 - 40400009, 9A110622603, 9A110622602, 9A712111000, 0PB121110A
3
Water pump thermostat. Porsche 981/982 Boxster / 981C/982C Cayman / 991 / 992
Best Price
9A712111000/1
Product Information
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
ENGINE GASKET SET Porsche 991.2 (911) Carrera 2015>> - 9A210414301, 9A210414401, 9A210557100, 9A210557101, 9A210558100, 9A210558101, 9A210731900, 0PB115476C, 9A210733800, 0PB115685A, 9A211071000, 9A714511310, 9A110621700, 0PB121091A, 9A110621500, 0PB121437, 9A110632600, 0PB121149, 9A110632500, 0PB121139, 9A110655900, 0PB121688, 9A110232200, 0PB121327C, 9A110232240, 0PB121327D, 9A110231240, 0PB121228B, 99970765440, 9A700828001, 9A211021800, 0PB129646D, 99970764240, 9A700827900, 9A111022370, 0PB129646C, 9P1251261, 9A211121500, 9P1251263, 99970734640, PAF008261, 90012301121, 0PB115189, 99970754740, 0PB115131, 038103196B, PAB103196B - 888.220
1
ENGINE GASKET SET Porsche 991.2 (911) Carrera 2015>>
888.220
Product Information
Product Information
Engine re-build gasket set, with valve stem seals, without cylinder head gasket.

elring

Fits:
Porsche 991.2 (911) 3.0 Carrera 11.2015>> Coupe / Cabrio
Porsche 991.2 (911) 3.0 Carrera 4 11.2015>> Coupe / Cabrio / Targa
Porsche 991.2 (911) 3.0 Carrera 4 GTS 03.2017>> Coupe / Cabrio / Targa
Porsche 991.2 (911) 3.0 Carrera 4S 11.2015>> Coupe / Cabrio / Targa
Porsche 991.2 (911) 3.0 Carrera GTS 03.2017>> Coupe / Cabrio
Porsche 991.2 (911) 3.0 Carrera S 11.2015>> Coupe / Cabrio
Porsche 991.2 (911) 3.0 Carrera T 01.2018>> Coupe

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

888.220
9A210414301
9A210414401
9A210557100
9A210557101
9A210558100
9A210558101
9A210731900
0PB115476C
9A210733800
0PB115685A
9A211071000
9A714511310
9A110621700
0PB121091A
9A110621500
0PB121437
9A110632600
0PB121149
9A110632500
0PB121139
9A110655900
0PB121688
9A110232200
0PB121327C
9A110232240
0PB121327D
9A110231240
0PB121228B
99970765440
9A700828001
9A211021800
0PB129646D
99970764240
9A700827900
9A111022370
0PB129646C
9P1251261
9A211121500
9P1251263
99970734640
PAF008261
90012301121
0PB115189
99970754740
0PB115131
038103196B
PAB103196B

The product you are viewing cross references to these numbers
Coolant distributor. Porsche 997.2 / 992 / Boxster / Cayman - 0PB121187, 9A110601000, 9A110601001, 9A110601002
4
Coolant distributor. Porsche 997.2 / 992 / Boxster / Cayman
Special Order item
0PB121187
Product Information
Product Information
Distributor for coolant, Complete.

porsche

Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-19
Porsche 991 Turbo 2014-20
Porsche 992.1 Carrera 2019>>
Porsche 992 Turbo / Turbo S 2020>>

Porsche 987.2 Boxster 2.9L / 3.4L 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 982 (718) Boxster GTS 4.0L 2017>>
Porsche 982 (718) Boxster Spyder 2019>>

Porsche 987C.2 Cayman 2.9L / 3.4L 2009-12
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 982C (718C) Cayman GTS 4.0L 2017>>
Porsche 982C (718C) Cayman GT4 2019>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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

0PB121187
0PB121187
9A110601000
9A110601001
9A110601002

The product you are viewing cross references to these numbers