Name: Coolant Tank Cap QUINTON HAZELL FC521 OE Ref 1H0121321D
Brand: QUINTON HAZELL
SKU: FC521
Price: 48 GBP
Availability: InStock

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Coolant Tank Cap QUINTON HAZELL FC521 OE Ref 1H0121321D QUINTON HAZELL

Key Specification:

EAN: 5050438139594
Material: Plastic
OEM Reference number: 1H0121321D
Pressure [bar]: 1-4
PURPOSE GROUP: Coolant Tank

See Full Specification

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£ 48

£ 40 excl. VAT

In Stock

SKU:	QUINTON HAZELL FC521
Brand	QUINTON HAZELL

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

5050438139594

Material

Plastic

OEM Reference number

1H0121321D

Pressure [bar]

1-4

PURPOSE GROUP

Coolant Tank

Supplementary Info

Expansion tank cap

Coolant Tank Cap QUINTON HAZELL OE Ref – QUINTON HAZELL – OEM 1H0121321D

This part from QUINTON HAZELL is designed as a direct replacement for OEM reference 1H0121321D. Manufactured to meet original equipment standards, it is suitable for selected SEAT, VW vehicles and intended to restore correct system operation.

It is supplied under manufacturer reference FC521 with EAN 5050438139594, 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 1H0121321D
Manufactured by QUINTON HAZELL
Clearly identified by SKU FC521 and EAN 5050438139594
Covered by our standard returns policy

Vehicle Compatibility

Compatible with selected SEAT, VW models. Please confirm fitment using OEM reference 1H0121321D 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

VAG 1H0 121 321D

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

SEAT

SEAT AROSA (6H1) From 05/1997 to 06/2004

1.4 16V 4WD 01/2000-06/2004, 74 kw, 1390 ccm, 100 PS, Hatchback, Petrol , ENG: AFK, AQQ, AUB

1.0 4WD 10/1998-01/2001, 37 kw, 997 ccm, 50 PS, Hatchback, Petrol , ENG: AHT

1.0 4WD 05/1997-06/2004, 37 kw, 999 ccm, 50 PS, Hatchback, Petrol , ENG: ANV, ALD, ALL, AUC, AER

1.4 TDI 4WD 01/2000-06/2004, 55 kw, 1422 ccm, 75 PS, Hatchback, Diesel , ENG: AMF

1.4 4WD 05/1997-06/2004, 44 kw, 1389 ccm, 60 PS, Hatchback, Petrol , ENG: AKV, APQ, AKK, ANW, AUD, AEX

1.7 SDI 4WD 08/1997-06/2004, 44 kw, 1716 ccm, 60 PS, Hatchback, Diesel , ENG: AKU

SEAT INCA (6K9) From 11/1995 to 11/2003

1.4 i 4WD 11/1995-06/2003, 44 kw, 1389 ccm, 60 PS, Estate Van, Petrol , ENG: AKV, APQ, AUD, AEX

1.7 D 4WD 09/1996-06/2003, 42 kw, 1715 ccm, 57 PS, Estate Van, Diesel , ENG: AHB

1.6 i 4WD 06/1997-09/2000, 55 kw, 1598 ccm, 75 PS, Estate Van, Petrol , ENG: AEE, ALM

1.6 i 4WD 11/1995-05/1998, 55 kw, 1595 ccm, 75 PS, Estate Van, Petrol , ENG: 1F

1.9 TDI 4WD 09/1996-06/2003, 66 kw, 1896 ccm, 90 PS, Estate Van, Diesel , ENG: ALH

1.4 16V 4WD 04/2000-06/2003, 55 kw, 1390 ccm, 75 PS, Estate Van, Petrol , ENG: AUA

1.9 SDI 4WD 11/1995-06/2003, 47 kw, 1896 ccm, 64 PS, Estate Van, Diesel , ENG: AYQ, AEY

1.9 D 4WD 11/1995-06/2003, 47 kw, 1896 ccm, 64 PS, Estate Van, Diesel , ENG: 1Y

VW CADDY II Box Body/MPV (9K9A) From 11/1995 to 01/2004

75 1.6 4WD 11/1995-05/1997, 55 kw, 1595 ccm, 75 PS, Box Body/MPV, Petrol , ENG: 1F

1.4 4WD 08/2000-01/2004, 55 kw, 1390 ccm, 75 PS, Box Body/MPV, Petrol , ENG: AUA

1.9 SDI 4WD 11/1995-01/2004, 47 kw, 1896 ccm, 64 PS, Box Body/MPV, Diesel , ENG: AEY, AYQ

1.9 TDI 4WD 09/1996-01/2004, 66 kw, 1896 ccm, 90 PS, Box Body/MPV, Diesel , ENG: 1Z, ALE, AHU, ALH

1.9 D 4WD 11/1995-01/2004, 47 kw, 1896 ccm, 64 PS, Box Body/MPV, Diesel , ENG: 1Y

75 1.6 4WD 11/1995-09/2000, 55 kw, 1598 ccm, 75 PS, Box Body/MPV, Petrol , ENG: AEE

1.7 SDI 4WD 07/1996-09/2000, 42 kw, 1715 ccm, 57 PS, Box Body/MPV, Diesel , ENG: AHB

60 1.4 4WD 11/1995-01/2004, 44 kw, 1390 ccm, 60 PS, Box Body/MPV, Petrol , ENG: AEX, AUD, APQ

VW CADDY II MPV (9K9B) From 11/1995 to 12/2004

1.9 D 4WD 11/1995-01/2004, 47 kw, 1896 ccm, 64 PS, MPV, Diesel , ENG: 1Y

1.6 4WD 06/1997-09/2000, 55 kw, 1598 ccm, 75 PS, MPV, Petrol , ENG: AEE

1.4 16V 4WD 08/2000-01/2004, 55 kw, 1390 ccm, 75 PS, MPV, Petrol , ENG: AUA

1.9 SDI 4WD 11/1995-01/2004, 47 kw, 1896 ccm, 64 PS, MPV, Diesel , ENG: AEY, AYQ

1.7 SDI 4WD 07/1996-09/2000, 42 kw, 1715 ccm, 57 PS, MPV, Diesel , ENG: AHB

1.6 4WD 11/1995-05/1997, 55 kw, 1595 ccm, 75 PS, MPV, Petrol , ENG: 1F

1.4 4WD 11/1995-06/2003, 44 kw, 1390 ccm, 60 PS, MPV, Petrol , ENG: AEX, AKV, AUD, APQ

1.9 TDI 4WD 10/1996-01/2004, 66 kw, 1896 ccm, 90 PS, MPV, Diesel , ENG: 1Z, ALE, AHU, ALH

VW CADDY Mk II Pick-up (9U7) From 06/1996 to 12/2000

1.9 D 4WD 06/1996-12/2000, 47 kw, 1896 ccm, 64 PS, Pickup, Diesel , ENG: AEF

1.6 4WD 06/1996-12/2000, 55 kw, 1598 ccm, 75 PS, Pickup, Petrol , ENG: AEE

VW LUPO I (6X1, 6E1) From 09/1998 to 07/2005

1.4 TDI 4WD 01/1999-07/2005, 55 kw, 1422 ccm, 75 PS, Hatchback, Diesel , ENG: AMF

1.7 SDI 4WD 09/1998-07/2005, 44 kw, 1716 ccm, 60 PS, Hatchback, Diesel , ENG: AKU

1.4 4WD 10/2000-07/2005, 44 kw, 1390 ccm, 60 PS, Hatchback, Petrol , ENG: AUD

1.0 4WD 09/1998-07/2005, 37 kw, 999 ccm, 50 PS, Hatchback, Petrol , ENG: ALL, AUC, ALD, ANV, AER

1.4 16V 4WD 08/1999-07/2005, 74 kw, 1390 ccm, 100 PS, Hatchback, Petrol , ENG: AFK, AUB, AQQ, ANM

1.4 16V 4WD 09/1998-07/2005, 55 kw, 1390 ccm, 75 PS, Hatchback, Petrol , ENG: AUA, APE, AHW, AKQ, BBY

1.4 FSI 4WD 02/2001-07/2005, 77 kw, 1390 ccm, 105 PS, Hatchback, Petrol , ENG: ARR

1.6 GTI 4WD 09/2000-07/2005, 92 kw, 1598 ccm, 125 PS, Hatchback, Petrol , ENG: AVY

1.2 TDI 3L 4WD 07/1999-07/2005, 45 kw, 1191 ccm, 61 PS, Hatchback, Diesel , ENG: AYZ, ANY

VW POLO (6N2) From 10/1999 to 10/2001

1.6 16V GTI 4WD 10/1999-09/2001, 92 kw, 1598 ccm, 125 PS, Hatchback, Petrol , ENG: AVY, ARC

1.4 4WD 10/1999-09/2001, 40 kw, 1390 ccm, 54 PS, Hatchback, Petrol , ENG: AKP, ANX

1.4 16V 4WD 10/1999-09/2001, 74 kw, 1390 ccm, 101 PS, Hatchback, Petrol , ENG: AFK, AUB, AQQ

1.4 16V 4WD 10/1999-09/2001, 55 kw, 1390 ccm, 75 PS, Hatchback, Petrol , ENG: AUA, APE, AHW

1.4 4WD 10/1999-09/2001, 44 kw, 1390 ccm, 60 PS, Hatchback, Petrol , ENG: AKK, AUD

VW POLO Estate (6V5) From 04/1997 to 09/2001

1.6 4WD 05/1997-09/2001, 55 kw, 1598 ccm, 75 PS, Estate, Petrol , ENG: AEE, ALM

1.8 4WD 05/1997-09/2001, 66 kw, 1781 ccm, 90 PS, Estate, Petrol , ENG: ADZ

1.4 4WD 01/1998-08/1999, 40 kw, 1390 ccm, 54 PS, Estate, Petrol , ENG: ANX

1.6 4WD 05/1997-09/2001, 74 kw, 1595 ccm, 101 PS, Estate, Petrol , ENG: APF, AEH, AKL, AUR, AFT

1.4 4WD 05/1997-09/2001, 44 kw, 1390 ccm, 60 PS, Estate, Petrol , ENG: ANW, AEX, AKV, AKK, AUD, APQ

1.4 16V 4WD 10/1999-09/2001, 55 kw, 1390 ccm, 75 PS, Estate, Petrol , ENG: AUA, APE

VW POLO III CLASSIC (6V2) From 01/1995 to 11/2009

90 1.8 4WD 01/1997-09/2001, 66 kw, 1781 ccm, 90 PS, Saloon, Petrol , ENG: ADZ, ADD, ABS

100 1.6 4WD 12/1995-09/2001, 74 kw, 1595 ccm, 100 PS, Saloon, Petrol , ENG: APF, AEH, AKL, AUR, AFT

75 1.4 16V 4WD 10/1999-09/2001, 55 kw, 1390 ccm, 75 PS, Saloon, Petrol , ENG: AUA, APE

75 1.6 4WD 11/1995-09/2001, 55 kw, 1598 ccm, 75 PS, Saloon, Petrol , ENG: AEE, ALM

75 1.6 4WD 11/1995-09/1997, 55 kw, 1595 ccm, 75 PS, Saloon, Petrol , ENG: 1F

60 1.4 4WD 12/1995-09/2001, 44 kw, 1390 ccm, 60 PS, Saloon, Petrol , ENG: ANW, AEX, AKV, AKK, AUD, APQ

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.