Name: Coolant Tank Cap FIRST LINE FRC142 OE Ref LR017427
Brand: FIRST LINE
SKU: FRC142
Price: 35 GBP
Availability: OutOfStock

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Coolant Tank Cap FIRST LINE FRC142 OE Ref LR017427 FIRST LINE

Key Specification:

EAN: 5038068520227
Material: Plastic
OEM Reference number: XR850837
Pressure [bar]: 1-4
Pressure [psi] to: 20

See Full Specification

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£ 35

£ 29.17 excl. VAT

Out of stock

SKU:	FIRST LINE FRC142
Brand	FIRST LINE

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

5038068520227

Material

Plastic

OEM Reference number

XR850837

Pressure [bar]

1-4

Pressure [psi] to

PURPOSE GROUP

Coolant Tank

Supplementary Info

Radiator Cap

Coolant Tank Cap FIRST LINE OE Ref LR017427 – FIRST LINE – OEM XR850837

This part from FIRST LINE is designed as a direct replacement for OEM reference XR850837. Manufactured to meet original equipment standards, it is suitable for selected JAGUAR, LAND ROVER vehicles and intended to restore correct system operation.

It is supplied under manufacturer reference FRC142 with EAN 5038068520227, allowing accurate identification and compatibility checks. This component is commonly used to replace worn, damaged, or faulty units where reliable performance is required.

The product is intended as a like-for-like replacement and should be installed according to manufacturer guidelines. Depending on vehicle design and component location, professional installation may be recommended.

Why Choose This Part?

Direct replacement for OEM reference XR850837
Manufactured by FIRST LINE
Clearly identified by SKU FRC142 and EAN 5038068520227
Covered by our standard returns policy

Vehicle Compatibility

Compatible with selected JAGUAR, LAND ROVER models. Please confirm fitment using OEM reference XR850837 or our vehicle registration lookup tool before ordering.

Looking for alternatives? Browse our full range of Engine Cooling System parts to find the correct option for your vehicle.

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

JAGUAR XR850837 LAND ROVER LR017427

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

JAGUAR

JAGUAR F-PACE (X761) From 09/2015

2.0 Ti4 Rear-Wheel Drive 09/2017-, 184 kw, 1997 ccm, 250 PS, SUV, Petrol , ENG: PT204(AJ20P4)

2.0 TD4 AWD 4WD 09/2015-, 132 kw, 1999 ccm, 180 PS, SUV, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

3.0 SDV6 AWD 4WD 09/2015-, 221 kw, 2993 ccm, 300 PS, SUV, Diesel , ENG: 306DT(AJTDV6)

2.0 Ti4 AWD 4WD 02/2017-, 184 kw, 1997 ccm, 250 PS, SUV, Petrol , ENG: PT204(AJ20P4)

2.0 TD4 Rear-Wheel Drive 02/2017-, 120 kw, 1999 ccm, 163 PS, SUV, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 TD4 Rear-Wheel Drive 09/2015-, 132 kw, 1999 ccm, 180 PS, SUV, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 Ti4 AWD 4WD 06/2017-, 221 kw, 1997 ccm, 300 PS, SUV, Petrol , ENG: PT204(AJ20P4)

2.0 SD4 AWD 4WD 02/2017-, 177 kw, 1999 ccm, 241 PS, SUV, Diesel , ENG: 204DTA(AJ20D4)

JAGUAR S-TYPE II (X200) From 10/1998 to 12/2008

3.0 V6 Rear-Wheel Drive 01/1999-10/2007, 175 kw, 2967 ccm, 238 PS, Saloon, Petrol , ENG: FB(AJV6), FG(AJV6)

R 4,2 V8 Rear-Wheel Drive 04/2002-10/2007, 291 kw, 4196 ccm, 396 PS, Saloon, Petrol , ENG: 1B(AJ36), 1G(AJ36)

4.2 Supercharged Rear-Wheel Drive 11/2001-12/2008, 298 kw, 4196 ccm, 405 PS, Saloon, Petrol , ENG: AJ36

2.5 V6 Rear-Wheel Drive 04/2002-10/2007, 147 kw, 2497 ccm, 200 PS, Saloon, Petrol , ENG: JB(AJV6)

2.7 D Rear-Wheel Drive 06/2004-10/2007, 152 kw, 2720 ccm, 207 PS, Saloon, Diesel , ENG: 7B(AJTDV6), 7G(AJTDV6)

4.0 V8 Rear-Wheel Drive 01/1999-04/2002, 203 kw, 3996 ccm, 276 PS, Saloon, Petrol , ENG: GC(AJV8)

4.2 V8 Rear-Wheel Drive 04/2002-10/2007, 219 kw, 4196 ccm, 298 PS, Saloon, Petrol , ENG: HB(AJ33), HG(AJ33)

JAGUAR XF II (X260) From 05/2015

2.0 Rear-Wheel Drive 05/2015-, 177 kw, 1999 ccm, 241 PS, Saloon, Petrol , ENG: 204PT(GTDI)

2.0 Rear-Wheel Drive 06/2017-, 221 kw, 1997 ccm, 300 PS, Saloon, Petrol , ENG: PT204(AJ20P4)

2.0 AWD 4WD 03/2017-, 184 kw, 1997 ccm, 250 PS, Saloon, Petrol , ENG: PT204(AJ20P4)

2.0 AWD 4WD 09/2017-, 221 kw, 1997 ccm, 300 PS, Saloon, Petrol , ENG: PT204(AJ20P4)

2.0 Rear-Wheel Drive 03/2017-, 147 kw, 1997 ccm, 200 PS, Saloon, Petrol , ENG: PT204(AJ20P4)

2.0 D Rear-Wheel Drive 03/2017-, 177 kw, 1999 ccm, 241 PS, Saloon, Diesel , ENG: 204DTA(AJ20D4)

2.0 D Rear-Wheel Drive 05/2015-, 120 kw, 1999 ccm, 163 PS, Saloon, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 D AWD 4WD 03/2016-, 132 kw, 1999 ccm, 180 PS, Saloon, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 Rear-Wheel Drive 03/2017-, 184 kw, 1997 ccm, 250 PS, Saloon, Petrol , ENG: PT204(AJ20P4)

2.0 D Rear-Wheel Drive 05/2015-, 132 kw, 1999 ccm, 180 PS, Saloon, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 D AWD 4WD 03/2017-, 177 kw, 1999 ccm, 241 PS, Saloon, Diesel , ENG: 204DTA(AJ20D4)

JAGUAR XF SPORTBRAKE (X260) From 07/2017

2.0 D Rear-Wheel Drive 07/2017-, 132 kw, 1999 ccm, 180 PS, Estate, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 Rear-Wheel Drive 07/2017-, 184 kw, 1997 ccm, 250 PS, Estate, Petrol , ENG: PT204(AJ20P4)

2.0 D AWD 4WD 07/2017-, 132 kw, 1999 ccm, 180 PS, Estate, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 Rear-Wheel Drive 07/2017-, 147 kw, 1997 ccm, 200 PS, Estate, Petrol , ENG: PT204(AJ20P4)

2.0 AWD 4WD 08/2018-, 221 kw, 1997 ccm, 300 PS, Estate, Petrol , ENG: PT204(AJ20P4)

2.0 D Rear-Wheel Drive 07/2017-, 120 kw, 1999 ccm, 163 PS, Estate, Diesel , ENG: 204DTD(AJ20D4), 204DTH(AJ20D4)

2.0 D AWD 4WD 07/2017-, 177 kw, 1999 ccm, 241 PS, Estate, Diesel , ENG: 204DTA(AJ20D4)

JAGUAR XJ (X350, X358) From 03/2003 to 03/2009

3.6 Rear-Wheel Drive 05/2003-03/2009, 190 kw, 3555 ccm, 258 PS, Saloon, Petrol , ENG: RG(AJV8)

3.0 Rear-Wheel Drive 04/2004-01/2007, 179 kw, 2967 ccm, 243 PS, Saloon, Petrol , ENG: AJV6(3.0 Liter)

4.2 Rear-Wheel Drive 05/2003-03/2009, 219 kw, 4196 ccm, 298 PS, Saloon, Petrol , ENG: SG(AJ34), SB(AJ33)

3.0 Rear-Wheel Drive 05/2003-03/2009, 175 kw, 2967 ccm, 238 PS, Saloon, Petrol , ENG: VB(AJV6), VG(AJV6)

D 2.7 Rear-Wheel Drive 10/2005-03/2009, 152 kw, 2720 ccm, 207 PS, Saloon, Diesel , ENG: 7G(AJTDV6)

4.2 Rear-Wheel Drive 05/2007-03/2009, 224 kw, 4196 ccm, 305 PS, Saloon, Petrol , ENG: SG(AJ34)

R 4.2 Rear-Wheel Drive 03/2003-03/2009, 291 kw, 4196 ccm, 395 PS, Saloon, Petrol , ENG: TB(AJ33SC), TG(AJ34SC)

JAGUAR XJ (X351) From 10/2009

3.0 V6 Rear-Wheel Drive 01/2011-, 175 kw, 2967 ccm, 238 PS, Saloon, Petrol , ENG: AJV6(3.0 Liter)

2.0 Ti4 Rear-Wheel Drive 05/2012-, 177 kw, 1999 ccm, 241 PS, Saloon, Petrol , ENG: 204PT(GTDI)

LAND ROVER

LAND ROVER DEFENDER Station Wagon (L663) From 09/2019

P300 Si4 4x4 4WD 09/2019-, 221 kw, 1997 ccm, 300 PS, Closed Off-Road Vehicle, Petrol , ENG: PT204(AJ20P4)

LAND ROVER DEFENDER Van (L663) From 02/2020

2.0 P300 Si4 4x4 4WD 02/2020-, 221 kw, 1997 ccm, 300 PS, Closed Off-Road Van, Petrol , ENG: PT204(AJ20P4)

LAND ROVER DISCOVERY IV (L319) From 09/2009 to 12/2018

3.0 TD 4x4 4WD 07/2012-12/2018, 183 kw, 2993 ccm, 249 PS, Closed Off-Road Vehicle, Diesel , ENG: 306DT(TDV6)

3.0 SDV6 4x4 4WD 11/2009-12/2018, 188 kw, 2993 ccm, 256 PS, Closed Off-Road Vehicle, Diesel , ENG: 306DT(TDV6)

2.7 TD 4x4 4WD 09/2009-12/2018, 140 kw, 2720 ccm, 190 PS, Closed Off-Road Vehicle, Diesel , ENG: 276DT(TDV6)

3.0 TD 4x4 4WD 09/2009-12/2018, 180 kw, 2993 ccm, 245 PS, Closed Off-Road Vehicle, Diesel , ENG: 306DT(TDV6)

3.0 TD 4x4 4WD 05/2010-12/2018, 155 kw, 2993 ccm, 211 PS, Closed Off-Road Vehicle, Diesel , ENG: 306DT(TDV6)

3.0 TD 4x4 4WD 09/2009-12/2018, 200 kw, 2993 ccm, 272 PS, Closed Off-Road Vehicle, Diesel , ENG: 306DT(TDV6)

LAND ROVER DISCOVERY IV VAN (L319) From 09/2009 to 12/2017

3.0 TD 4x4 4WD 01/2011-12/2017, 188 kw, 2993 ccm, 256 PS, Van, Diesel , ENG: 306DT(TDV6)

3.0 TD 4x4 4WD 01/2011-12/2017, 155 kw, 2993 ccm, 211 PS, Van, Diesel , ENG: 306DT(TDV6)

3.0 TD 4x4 4WD 01/2011-12/2017, 180 kw, 2993 ccm, 245 PS, Van, Diesel , ENG: 306DT(TDV6)

LAND ROVER DISCOVERY V (L462) From 09/2016

3.0 D 4x4 4WD 09/2016-, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: 306DT(TDV6)

LAND ROVER RANGE ROVER IV (L405) From 08/2012

3.0 SDV6 Hybrid 4x4 4WD 10/2013-, 250 kw, 2993 ccm, 340 PS, SUV, Full Hybrid , ENG: 306DT(TDV6)

3.0 SDV6 Hybrid 4x4 4WD 06/2015-, 260 kw, 2993 ccm, 354 PS, SUV, Full Hybrid , ENG: 306DT(TDV6)

3.0 TDV6 4x4 4WD 08/2012-, 190 kw, 2993 ccm, 258 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 SDV6 4x4 4WD 08/2012-, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: 306DT(TDV6)

4.4 SDV8 4x4 4WD 08/2012-, 250 kw, 4367 ccm, 340 PS, SUV, Diesel , ENG: 448DT(DITC)

3.0 TDV6 4x4 4WD 10/2013-, 155 kw, 2993 ccm, 211 PS, SUV, Diesel , ENG: 306DT(TDV6)

LAND ROVER RANGE ROVER Mk III (L322) From 03/2002 to 12/2012

4.4 D 4x4 4WD 07/2010-08/2012, 230 kw, 4367 ccm, 313 PS, Closed Off-Road Vehicle, Diesel , ENG: 448DT(DITC)

LAND ROVER RANGE ROVER SPORT I (L320) From 02/2005 to 03/2013

3.0 D 4x4 4WD 09/2009-03/2013, 180 kw, 2993 ccm, 245 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 D 4x4 4WD 06/2011-03/2013, 188 kw, 2993 ccm, 256 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 D 4x4 4WD 05/2010-03/2013, 155 kw, 2993 ccm, 211 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 D 4x4 4WD 08/2012-03/2013, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: 306DT(TDV6)

LAND ROVER RANGE ROVER SPORT II (L494) From 04/2013

3.0 TDV6 4x4 4WD 04/2013-, 190 kw, 2993 ccm, 258 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 SDV6 Hybrid 4x4 4WD 10/2013-, 250 kw, 2993 ccm, 340 PS, SUV, Full Hybrid , ENG: 306DT(TDV6)

2.0 Si4 4x4 4WD 10/2017-, 221 kw, 1997 ccm, 300 PS, SUV, Petrol , ENG: PT204(AJ20P4)

3.0 TDV6 4x4 4WD 04/2013-12/2018, 155 kw, 2993 ccm, 211 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 SDV6 4x4 4WD 09/2014-, 225 kw, 2993 ccm, 306 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 SDV6 4x4 4WD 04/2013-12/2016, 215 kw, 2993 ccm, 292 PS, SUV, Diesel , ENG: 306DT(TDV6)

4.4 SDV8 4x4 4WD 10/2013-, 250 kw, 4367 ccm, 340 PS, SUV, Diesel , ENG: 448DT(DITC)

3.0 SDV6 Hybrid 4x4 4WD 06/2015-12/2017, 260 kw, 2993 ccm, 354 PS, SUV, Full Hybrid , ENG: 306DT(TDV6)

3.0 SDV6 4x4 4WD 04/2013-, 183 kw, 2993 ccm, 249 PS, SUV, Diesel , ENG: 306DT(TDV6)

LAND ROVER RANGE ROVER VELAR (L560) From 03/2017

3.0 D300 SDV6 4x4 4WD 03/2017-, 221 kw, 2993 ccm, 300 PS, SUV, Diesel , ENG: 306DT(TDV6)

3.0 D275 SDV6 4x4 4WD 04/2018-, 202 kw, 2993 ccm, 275 PS, SUV, Diesel , ENG: 306DT(TDV6)

2.0 D240 SD4 4x4 4WD 03/2017-, 177 kw, 1999 ccm, 241 PS, SUV, Diesel , ENG: 204DTA(AJ20D4)

2.0 P250 Si4 4x4 4WD 03/2017-, 184 kw, 1997 ccm, 250 PS, SUV, Petrol , ENG: PT204(AJ20P4)

2.0 P300 Si4 4x4 4WD 03/2017-, 221 kw, 1997 ccm, 300 PS, SUV, Petrol , ENG: PT204(AJ20P4)

2.0 D180 TD4 4x4 4WD 03/2017-, 132 kw, 1999 ccm, 180 PS, SUV, Diesel , ENG: 204DTD(AJ20D4)

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.