Name: Coolant Thermostat FIRST LINE FTK550 OE Ref 31474800
Brand: FIRST LINE
SKU: FIRST-LINE-FTK550
Price: 37.00 GBP
Availability: InStock
Rating: 4.8 (578 reviews)

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Coolant Thermostat FIRST LINE FTK550 OE Ref 31474800 FIRST LINE

Key Specification:

EAN: 5038068549945
OEM Reference number: 31293767
Supplementary Info: THERMOSTAT KIT
PURPOSE GROUP: Coolant
Opening Temperature [Â°C]: 90

See Full Specification

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£ 37.00

£ 28.21 excl. VAT

In Stock

SKU:	FIRST LINE FTK550
Brand	FIRST LINE

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

5038068549945

OEM Reference number

31293767

Supplementary Info

THERMOSTAT KIT

PURPOSE GROUP

Coolant

Opening Temperature [Â°C]

Coolant Thermostat FIRST LINE FTK550 OE Ref 31474800

Coolant Thermostat FIRST LINE OE Ref 31474800 – FIRST LINE – OEM 31293767

This Coolant Thermostat FIRST LINE OE Ref 31474800 is supplied by FIRST LINE as a replacement for OEM reference 31293767. It is intended for use in selected POLESTAR, VOLVO vehicles and designed to meet original equipment fit and function requirements.

The part is identified by manufacturer reference FTK550 and EAN EAN: 5038068549945, allowing accurate product identification and compatibility checks before installation. It is suitable for replacing worn, damaged, or non-functioning components where reliable operation is required.

THERMOSTAT KIT

Correct part selection is essential to ensure proper fitment. Please verify compatibility by matching the OEM reference number or using the vehicle registration lookup tool before ordering.

Vehicle Compatibility

Compatible with selected POLESTAR, VOLVO models. Full compatibility details are available in the Compatibility section of this page.

If this part is not suitable for your vehicle, browse alternative options in our Engine Cooling System category.

Reference number(s) comparable with the original spare part number

VOLVO 31293767 VOLVO 31474800 VOLVO 31686046 POLESTAR 31686046

OE reference number(s) comparable with the original spare part number

POLESTAR

POLESTAR POLESTAR 1 (P) From 03/2018

PHEV AWD 4WD 03/2018-, 448 kw, 1969 ccm, 609 PS, Coupe, Plug-In Hybrid , ENG: B 4204 T25, ERAD2.2 L/R, B 4204 T22

VOLVO

VOLVO S60 II (134) From 04/2010 to 12/2019

D4 Drive-E Polestar 4WD 03/2015-05/2018, 147 kw, 1969 ccm, 200 PS, Saloon, Diesel , ENG: D 4204 T14

D5 4WD 03/2015-05/2018, 165 kw, 1969 ccm, 224 PS, Saloon, Diesel , ENG: D 4204 T11

D3 4WD 03/2015-05/2018, 110 kw, 1969 ccm, 150 PS, Saloon, Diesel , ENG: D 4204 T9, D 4204 T4

D4 4WD 09/2013-12/2015, 133 kw, 1969 ccm, 181 PS, Saloon, Diesel , ENG: D 4204 T5

D5 Drive-E Polestar 4WD 03/2015-05/2018, 171 kw, 1969 ccm, 232 PS, Saloon, Diesel , ENG: D 4204 T11

D4 4WD 03/2015-05/2018, 140 kw, 1969 ccm, 190 PS, Saloon, Diesel , ENG: D 4204 T14

D2 4WD 03/2015-05/2018, 88 kw, 1969 ccm, 120 PS, Saloon, Diesel , ENG: D 4204 T20, D 4204 T8

VOLVO S60 III (224) From 02/2019

T5 AWD 4WD 02/2019-, 184 kw, 1969 ccm, 250 PS, Saloon, Petrol , ENG: B 4204 T26

T4 Polestar 4WD 07/2019-12/2021, 155 kw, 1969 ccm, 210 PS, Saloon, Petrol , ENG: B 4204 T31P

T6 Twin Engine AWD 4WD 02/2019-12/2022, 250 kw, 1969 ccm, 340 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T34, B 4204 T46

T4 4WD 02/2019-12/2021, 140 kw, 1969 ccm, 190 PS, Saloon, Petrol , ENG: B 4204 T44, B 4204 T31

T5 AWD 4WD 05/2019-12/2021, 187 kw, 1969 ccm, 254 PS, Saloon, Petrol , ENG: B 4204 T23

T5 Polestar 4WD 07/2019-12/2021, 186 kw, 1969 ccm, 253 PS, Saloon, Petrol , ENG: B 4204 T26P

T8 Twin Engine Polestar AWD 4WD 02/2019-, 298 kw, 1969 ccm, 405 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T48, B 4204 T53

T8 Twin Engine AWD 4WD 02/2019-12/2022, 287 kw, 1969 ccm, 390 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T34

T5 AWD 4WD 05/2019-12/2021, 183 kw, 1969 ccm, 249 PS, Saloon, Petrol , ENG: B 4204 T20

T5 4WD 02/2019-12/2021, 184 kw, 1969 ccm, 250 PS, Saloon, Petrol , ENG: B 4204 T26

T6 AWD 4WD 05/2019-12/2021, 228 kw, 1969 ccm, 310 PS, Saloon, Petrol , ENG: B 4204 T29

VOLVO S90 II (234) From 01/2016

D4 Drive-E Polestar AWD 4WD 03/2016-12/2021, 147 kw, 1969 ccm, 200 PS, Saloon, Diesel , ENG: D 4204 T14

D4 AWD 4WD 03/2016-12/2021, 140 kw, 1969 ccm, 190 PS, Saloon, Diesel , ENG: D 4204 T14

T8 Hybrid Polestar AWD 4WD 01/2019-, 233 kw, 1969 ccm, 317 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T34, B 4204 T53

T5 Drive-E Polestar 4WD 10/2017-12/2021, 186 kw, 1969 ccm, 253 PS, Saloon, Petrol , ENG: B 4204 T26

D5 AWD 4WD 03/2016-12/2021, 173 kw, 1969 ccm, 235 PS, Saloon, Diesel , ENG: D 4204 T23

T8 Hybrid AWD 4WD 04/2018-12/2022, 287 kw, 1969 ccm, 390 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T34

T6 AWD 4WD 10/2017-12/2021, 228 kw, 1969 ccm, 310 PS, Saloon, Petrol , ENG: B 4204 T29

T4 Polestar 4WD 06/2019-12/2021, 155 kw, 1969 ccm, 210 PS, Saloon, Petrol , ENG: B 4204 T31

2.0 4WD 03/2016-12/2021, 183 kw, 1969 ccm, 249 PS, Saloon, Petrol , ENG: B 4204 T20

D3 4WD 03/2016-12/2021, 110 kw, 1969 ccm, 150 PS, Saloon, Diesel , ENG: D 4204 T16, D 4204 T9

T8 Plug-in Hybrid Polestar AWD 4WD 10/2017-12/2022, 246 kw, 1969 ccm, 334 PS, Saloon, Plug-In Hybrid , ENG: B 4204 T35

D4 Drive-E Polestar 4WD 03/2016-12/2021, 147 kw, 1969 ccm, 200 PS, Saloon, Diesel , ENG: D 4204 T14

D4 4WD 03/2016-12/2021, 140 kw, 1969 ccm, 190 PS, Saloon, Diesel , ENG: D 4204 T14

T6 Drive-E Polestar AWD 4WD 10/2017-12/2021, 240 kw, 1969 ccm, 326 PS, Saloon, Petrol , ENG: B 4204 T29

T5 4WD 10/2017-12/2021, 184 kw, 1969 ccm, 250 PS, Saloon, Petrol , ENG: B 4204 T26

D5 Polestar AWD 4WD 06/2019-12/2021, 177 kw, 1969 ccm, 240 PS, Saloon, Diesel , ENG: D 4204 T23

T4 4WD 10/2017-12/2021, 140 kw, 1969 ccm, 190 PS, Saloon, Petrol , ENG: B 4204 T44, B 4204 T31

B5 Mild-Hybrid 4WD 03/2020-, 184 kw, 1969 ccm, 250 PS, Saloon, Mild Hybrid , ENG: B 4204 T26, B 420 T2

VOLVO V40 Hatchback (525) From 03/2012 to 08/2019

D2 4WD 02/2015-08/2019, 88 kw, 1969 ccm, 120 PS, Hatchback, Diesel , ENG: D 4204 T13, D 4204 T8

D4 Polestar 4WD 05/2014-08/2019, 147 kw, 1969 ccm, 200 PS, Hatchback, Diesel , ENG: D 4204 T14

VOLVO V60 I (155) From 07/2010 to 12/2018

D5 4WD 03/2015-05/2018, 165 kw, 1969 ccm, 224 PS, Estate, Diesel , ENG: D 4204 T11

D3 4WD 03/2015-05/2018, 110 kw, 1969 ccm, 150 PS, Estate, Diesel , ENG: D 4204 T9, D 4204 T4

D4 4WD 10/2013-12/2015, 133 kw, 1969 ccm, 181 PS, Estate, Diesel , ENG: D 4204 T5

D4 4WD 03/2015-05/2018, 140 kw, 1969 ccm, 190 PS, Estate, Diesel , ENG: D 4204 T14

D2 4WD 03/2015-05/2018, 88 kw, 1969 ccm, 120 PS, Estate, Diesel , ENG: D 4204 T20, D 4204 T8

VOLVO V60 I Cross Country (157) From 09/2010 to 12/2018

D4 Drive-E Polestar 4WD 03/2015-05/2018, 147 kw, 1969 ccm, 200 PS, Estate, Diesel , ENG: D 4204 T14

T5 4WD 03/2015-05/2018, 180 kw, 1969 ccm, 245 PS, Estate, Petrol , ENG: B 4204 T11

VOLVO V60 II (225) From 02/2018

T6 Plug-in Hybrid AWD 4WD 03/2019-12/2022, 250 kw, 1969 ccm, 340 PS, Estate, Plug-In Hybrid , ENG: B 4204 T46

T5 AWD 4WD 09/2018-12/2021, 184 kw, 1969 ccm, 250 PS, Estate, Petrol , ENG: B 4204 T26

T4 4WD 05/2019-, 140 kw, 1969 ccm, 190 PS, Estate, Petrol , ENG: B 4204 T44, B 4204 T31

T5 Polestar AWD 4WD 07/2019-, 186 kw, 1969 ccm, 253 PS, Estate, Petrol , ENG: B 4204 T26P, B 4204 T11

T8 Plug-in Hybrid AWD 4WD 02/2018-12/2022, 287 kw, 1969 ccm, 390 PS, Estate, Plug-In Hybrid , ENG: B 4204 T34

T5 4WD 02/2018-12/2021, 184 kw, 1969 ccm, 250 PS, Estate, Petrol , ENG: B 4204 T26

T8 Plug-in Hybrid Polestar AWD 4WD 05/2019-12/2022, 298 kw, 1969 ccm, 405 PS, Estate, Plug-In Hybrid , ENG: B 4204 T48

2.0 T6 Drive-E Polestar AWD 4WD 02/2018-12/2021, 240 kw, 1969 ccm, 326 PS, Estate, Petrol , ENG: B 4204 T29

T4 Polestar 4WD 07/2019-12/2021, 155 kw, 1969 ccm, 210 PS, Estate, Petrol , ENG: B 4204 T31P

T5 Polestar 4WD 07/2019-12/2021, 186 kw, 1969 ccm, 253 PS, Estate, Petrol , ENG: B 4204 T26P, B 4204 T11

T6 AWD 4WD 02/2018-12/2021, 228 kw, 1969 ccm, 310 PS, Estate, Petrol , ENG: B 4204 T29

VOLVO V70 III (135) From 04/2007 to 04/2016

D4 4WD 10/2013-04/2016, 133 kw, 1969 ccm, 181 PS, Estate, Diesel , ENG: D 4204 T5

D2 4WD 03/2015-04/2016, 88 kw, 1969 ccm, 120 PS, Estate, Diesel , ENG: D 4204 T20

D3 4WD 03/2015-04/2016, 110 kw, 1969 ccm, 150 PS, Estate, Diesel , ENG: D 4204 T9

VOLVO V90 II Cross Country (236) From 03/2016

D4 AWD 4WD 09/2018-, 120 kw, 1969 ccm, 163 PS, Estate, Diesel , ENG: D 4204 T7

T5 Polestar AWD 4WD 10/2017-, 186 kw, 1969 ccm, 253 PS, Estate, Petrol , ENG: B 4204 T26

T5 AWD 4WD 10/2017-, 184 kw, 1969 ccm, 250 PS, Estate, Petrol , ENG: B 4204 T26

VOLVO V90 II Estate (235) From 03/2016

T4 4WD 10/2017-12/2021, 140 kw, 1969 ccm, 190 PS, Estate, Petrol , ENG: B 4204 T31

T6 Polestar AWD 4WD 10/2017-12/2021, 240 kw, 1969 ccm, 326 PS, Estate, Petrol , ENG: B 4204 T29

D3 AWD 4WD 03/2016-12/2021, 110 kw, 1969 ccm, 150 PS, Estate, Diesel , ENG: D 4204 T4

T6 AWD 4WD 10/2017-12/2021, 228 kw, 1969 ccm, 310 PS, Estate, Petrol , ENG: B 4204 T29

T5 4WD 10/2017-12/2021, 184 kw, 1969 ccm, 250 PS, Estate, Petrol , ENG: B 4204 T23, B 4204 T26

D4 4WD 03/2016-12/2021, 140 kw, 1969 ccm, 190 PS, Estate, Diesel , ENG: D 4204 T14

T4 Polestar 4WD 06/2019-12/2021, 155 kw, 1969 ccm, 210 PS, Estate, Petrol , ENG: B 4204 T31

T6 Plug-in-Hybrid AWD 4WD 06/2020-12/2022, 250 kw, 1969 ccm, 340 PS, Estate, Plug-In Hybrid , ENG: B 4204 T46

T8 Plug-in Hybrid Polestar AWD 4WD 05/2018-12/2022, 233 kw, 1969 ccm, 317 PS, Estate, Plug-In Hybrid , ENG: B 4204 T34

D4 AWD 4WD 03/2016-12/2021, 140 kw, 1969 ccm, 190 PS, Estate, Diesel , ENG: D 4204 T14

D4 4WD 09/2018-12/2021, 120 kw, 1969 ccm, 163 PS, Estate, Diesel , ENG: D 4204 T7

T8 Plug-in-Hybrid AWD 4WD 03/2016-12/2018, 299 kw, 1969 ccm, 407 PS, Estate, Plug-In Hybrid , ENG: B 4204 T35

Polestar AWD 4WD 10/2016-12/2021, 147 kw, 1969 ccm, 200 PS, Estate, Diesel , ENG: D 4204 T14

D4 Polestar 4WD 10/2016-12/2021, 147 kw, 1969 ccm, 200 PS, Estate, Diesel , ENG: D 4204 T14

T8 Hybrid AWD 4WD 04/2018-12/2022, 287 kw, 1969 ccm, 390 PS, Estate, Plug-In Hybrid , ENG: B 4204 T34

T5 Polestar 4WD 06/2019-12/2021, 186 kw, 1969 ccm, 253 PS, Estate, Petrol , ENG: B 4204 T26

T8 Plug-in Hybrid Polestar AWD 4WD 03/2016-12/2018, 246 kw, 1969 ccm, 334 PS, Estate, Plug-In Hybrid , ENG: B 4204 T35

VOLVO XC40 (536) From 10/2017

T5 Polestar AWD 4WD 10/2017-09/2019, 183 kw, 1969 ccm, 249 PS, SUV, Petrol , ENG: B 4204 T20

T5 AWD 4WD 10/2017-09/2021, 182 kw, 1969 ccm, 247 PS, SUV, Petrol , ENG: B 4204 T14

T5 AWD 4WD 10/2017-12/2022, 184 kw, 1969 ccm, 250 PS, SUV, Petrol , ENG: B 4204 T18, B 4204 T14

VOLVO XC60 I SUV (156) From 05/2008 to 12/2017

D3 4WD 03/2015-04/2017, 110 kw, 1969 ccm, 150 PS, SUV, Diesel , ENG: D 4204 T4

D4 4WD 10/2013-12/2015, 133 kw, 1969 ccm, 181 PS, SUV, Diesel , ENG: D 4204 T5

D4 4WD 03/2015-02/2017, 140 kw, 1969 ccm, 190 PS, SUV, Diesel , ENG: D 4204 T14

VOLVO XC60 II (246) From 03/2017

T6 AWD 4WD 03/2017-12/2021, 235 kw, 1969 ccm, 320 PS, SUV, Petrol , ENG: B 4204 T27

D4 AWD 4WD 03/2017-12/2021, 140 kw, 1969 ccm, 190 PS, SUV, Diesel , ENG: D 4204 T14

T5 Polestar AWD 4WD 03/2017-12/2018, 192 kw, 1969 ccm, 261 PS, SUV, Petrol , ENG: B 4204 T23

T5 AWD 4WD 10/2017-12/2020, 184 kw, 1969 ccm, 250 PS, SUV, Petrol , ENG: B 4204 T26

T6 Polestar AWD 4WD 07/2019-12/2021, 240 kw, 1969 ccm, 326 PS, SUV, Petrol , ENG: B 4204 T29P

T5 Polestar 4WD 05/2019-12/2020, 186 kw, 1969 ccm, 253 PS, SUV, Petrol , ENG: B 4204 T26P

T4 4WD 09/2018-12/2021, 140 kw, 1969 ccm, 190 PS, SUV, Petrol , ENG: B 4204 T31

T5 Polestar AWD 4WD 07/2019-12/2020, 186 kw, 1969 ccm, 253 PS, SUV, Petrol , ENG: B 4204 T26P

T5 AWD 4WD 10/2017-12/2021, 183 kw, 1969 ccm, 249 PS, SUV, Petrol , ENG: B 4204 T20

T5 AWD 4WD 03/2017-12/2021, 187 kw, 1969 ccm, 254 PS, SUV, Petrol , ENG: B 4204 T23

T6 Polestar AWD 4WD 03/2017-12/2021, 246 kw, 1969 ccm, 334 PS, SUV, Petrol , ENG: B 4204 T27

T8 Hybrid Polestar AWD 4WD 01/2019-12/2022, 298 kw, 1969 ccm, 405 PS, SUV, Plug-In Hybrid , ENG: B 4204 T34, B 4204 T48

T6 AWD 4WD 10/2017-12/2021, 228 kw, 1969 ccm, 310 PS, SUV, Petrol , ENG: B 4204 T29

T4 Polestar 4WD 07/2019-12/2021, 155 kw, 1969 ccm, 210 PS, SUV, Petrol , ENG: B 4204 T31P

T5 4WD 10/2017-12/2020, 184 kw, 1969 ccm, 250 PS, SUV, Petrol , ENG: B 4204 T26

T8 Hybrid AWD 4WD 09/2017-12/2022, 298 kw, 1969 ccm, 405 PS, SUV, Plug-In Hybrid , ENG: B 4204 T57, B 4204 T28

T5 4WD 03/2017-, 187 kw, 1969 ccm, 254 PS, SUV, Petrol , ENG: B 4204 T23

VOLVO XC70 II (136) From 04/2007 to 12/2016

D4 4WD 10/2013-04/2016, 133 kw, 1969 ccm, 181 PS, Estate, Diesel , ENG: D 4204 T5

VOLVO XC90 II (256) From 09/2014

T8 Hybrid Polestar AWD 4WD 01/2019-12/2022, 233 kw, 1969 ccm, 317 PS, SUV, Plug-In Hybrid , ENG: B 4204 T34

T5 Polestar AWD 4WD 07/2019-12/2020, 186 kw, 1969 ccm, 253 PS, SUV, Petrol , ENG: B 4204 T26P

T6 AWD 4WD 10/2017-12/2021, 228 kw, 1969 ccm, 310 PS, SUV, Petrol , ENG: B 4204 T29

D4 AWD 4WD 10/2015-12/2018, 140 kw, 1969 ccm, 190 PS, SUV, Diesel , ENG: D 4204 T6

D5 DRIVe Polestar AWD 4WD 03/2016-12/2021, 176 kw, 1969 ccm, 239 PS, SUV, Diesel , ENG: D 4204 T23

T8 Hybrid AWD 4WD 06/2015-12/2022, 298 kw, 1969 ccm, 405 PS, SUV, Plug-In Hybrid , ENG: B 4204 T35

B5 Mild-Hybrid AWD 4WD 01/2020-, 184 kw, 1969 ccm, 250 PS, SUV, Mild Hybrid , ENG: B 420 T2

D5 Polestar AWD 4WD 10/2018-12/2021, 177 kw, 1969 ccm, 240 PS, SUV, Diesel , ENG: D 4204 T23

T8 Plug-in Hybrid Polestar AWD 4WD 06/2015-12/2022, 246 kw, 1969 ccm, 334 PS, SUV, Plug-In Hybrid , ENG: B 4204 T35

T8 Twin Engine AWD 4WD 06/2019-12/2022, 287 kw, 1969 ccm, 390 PS, SUV, Plug-In Hybrid , ENG: B 4204 T34

T5 AWD 4WD 10/2017-12/2020, 184 kw, 1969 ccm, 250 PS, SUV, Petrol , ENG: B 4204 T26

T6 Polestar AWD 4WD 10/2017-12/2021, 240 kw, 1969 ccm, 326 PS, SUV, Petrol , ENG: B 4204 T29P

T5 Drive-E Polestar AWD 4WD 10/2017-12/2020, 176 kw, 1969 ccm, 239 PS, SUV, Petrol , ENG: B 4204 T26

D4 4WD 06/2015-12/2018, 140 kw, 1969 ccm, 190 PS, SUV, Diesel , ENG: D 4204 T14

D5 AWD 4WD 03/2016-12/2019, 173 kw, 1969 ccm, 235 PS, SUV, Diesel , ENG: D 4204 T23

D5 AWD 4WD 09/2014-12/2016, 165 kw, 1969 ccm, 224 PS, SUV, Diesel , ENG: D 4204 T11

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.