Name: Thermostat Housing NAPA NTH1809 OE Ref 03L121132AC
Brand: NAPA
SKU: NTH1809
Price: 40 GBP
Availability: InStock

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Thermostat Housing NAPA NTH1809 OE Ref 03L121132AC NAPA

Key Specification:

EAN: 5056667478602
Material: Plastic
OEM Reference number: 03L121132AC
Packing Unit: 1
PURPOSE GROUP: Cooling System - Housing

See Full Specification

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£ 40

£ 33.33 excl. VAT

In Stock

SKU:	NAPA NTH1809
Brand	NAPA

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

5056667478602

Material

Plastic

OEM Reference number

03L121132AC

Packing Unit

PURPOSE GROUP

Cooling System - Housing

Supplementary Info

NAPA

Find the Right Thermostat Housing NAPA OE Ref for Your AUDI, SEAT

Fitting a AUDI, SEAT that needs a new Thermostat Housing NAPA OE Ref? This one is built by NAPA to OEM reference 03L121132AC, so it slots in as a straight swap for the original part — no modifications, no guesswork.

It's listed under NAPA part number NTH1809, EAN: 5056667478602, which you can cross-check against your old part before ordering to be sure it's the right fit.

NAPA

Before You Order

Double-check fitment against OEM reference 03L121132AC, or run your registration through our vehicle lookup tool — some AUDI, SEAT models share a platform across several years, so it's worth confirming rather than assuming.

Not quite the right one? The full Engine Cooling System range has other options worth a look.

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

VAG 03L 121 132 AC

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

AUDI

AUDI A4 Allroad B8 (8KH) From 04/2009 to 05/2016

2.0 TDI quattro 4WD 09/2009-05/2016, 100 kw, 1968 ccm, 136 PS, Estate, Diesel , ENG: CAGB, CSUB, CJCB

2.0 TDI quattro 4WD 11/2011-05/2016, 130 kw, 1968 ccm, 177 PS, Estate, Diesel , ENG: CGLC

2.0 TDI quattro 4WD 04/2009-05/2016, 120 kw, 1968 ccm, 163 PS, Estate, Diesel , ENG: CAHB, CNHC, CGLD

2.0 TDI quattro 4WD 09/2009-05/2016, 105 kw, 1968 ccm, 143 PS, Estate, Diesel , ENG: CAGA, CJCA

2.0 TDI quattro 4WD 04/2009-05/2016, 125 kw, 1968 ccm, 170 PS, Estate, Diesel , ENG: CAHA

2.0 TDI quattro 4WD 05/2013-05/2016, 110 kw, 1968 ccm, 150 PS, Estate, Diesel , ENG: CJCD, CSUA

2.0 TDI quattro 4WD 09/2013-05/2016, 140 kw, 1968 ccm, 190 PS, Estate, Diesel , ENG: CNHA

AUDI A4 B8 (8K2) From 08/2007 to 09/2016

2.0 TDI 4WD 06/2008-12/2015, 88 kw, 1968 ccm, 120 PS, Saloon, Diesel , ENG: CJCC, CAGC

2.0 TDI quattro 4WD 11/2008-12/2015, 105 kw, 1968 ccm, 143 PS, Saloon, Diesel , ENG: CAGA, CJCA

2.0 TDI 4WD 09/2013-12/2015, 140 kw, 1968 ccm, 190 PS, Saloon, Diesel , ENG: CNHA

2.0 TDI 4WD 11/2007-12/2015, 100 kw, 1968 ccm, 136 PS, Saloon, Diesel , ENG: CAGB, CSUB, CJCB

2.0 TDI quattro 4WD 11/2011-12/2015, 130 kw, 1968 ccm, 177 PS, Saloon, Diesel , ENG: CGLC

2.0 TDI 4WD 05/2013-12/2015, 110 kw, 1968 ccm, 150 PS, Saloon, Diesel , ENG: CJCD, CMFB, CSUA

2.0 TDI quattro 4WD 09/2013-12/2015, 140 kw, 1968 ccm, 190 PS, Saloon, Diesel , ENG: CNHA

2.0 TDI quattro 4WD 05/2013-12/2015, 110 kw, 1968 ccm, 150 PS, Saloon, Diesel , ENG: CJCD, CSUA

2.0 TDI 4WD 11/2007-12/2015, 105 kw, 1968 ccm, 143 PS, Saloon, Diesel , ENG: CMEA, CAGA, CJCA, CMFA

2.0 TDI 4WD 11/2011-12/2015, 130 kw, 1968 ccm, 177 PS, Saloon, Diesel , ENG: CGLC, CMGB

2.0 TDI 4WD 08/2008-12/2015, 120 kw, 1968 ccm, 163 PS, Saloon, Diesel , ENG: CAHB, CNHC, CGLD

AUDI A4 B8 Avant (8K5) From 11/2007 to 12/2015

2.0 TDI 4WD 05/2013-12/2015, 110 kw, 1968 ccm, 150 PS, Estate, Diesel , ENG: CJCD, CMFB, CSUA

2.0 TDI quattro 4WD 11/2011-12/2015, 130 kw, 1968 ccm, 177 PS, Estate, Diesel , ENG: CGLC

2.0 TDI 4WD 08/2008-12/2015, 120 kw, 1968 ccm, 163 PS, Estate, Diesel , ENG: CAHB, CNHC, CGLD

2.0 TDI quattro 4WD 09/2013-12/2015, 140 kw, 1968 ccm, 190 PS, Estate, Diesel , ENG: CNHA

2.0 TDI 4WD 04/2008-12/2015, 100 kw, 1968 ccm, 136 PS, Estate, Diesel , ENG: CAGB, CSUB, CJCB

2.0 TDI quattro 4WD 05/2013-12/2015, 110 kw, 1968 ccm, 150 PS, Estate, Diesel , ENG: CJCD, CSUA

2.0 TDI quattro 4WD 04/2008-12/2015, 105 kw, 1968 ccm, 143 PS, Estate, Diesel , ENG: CAGA, CJCA

2.0 TDI 4WD 04/2008-12/2015, 105 kw, 1968 ccm, 143 PS, Estate, Diesel , ENG: CMEA, CAGA, CJCA, CMFA

2.0 TDI 4WD 11/2011-12/2015, 130 kw, 1968 ccm, 177 PS, Estate, Diesel , ENG: CGLC

2.0 TDI 4WD 06/2008-12/2015, 88 kw, 1968 ccm, 120 PS, Estate, Diesel , ENG: CJCC, CAGC

2.0 TDI 4WD 09/2013-12/2015, 140 kw, 1968 ccm, 190 PS, Estate, Diesel , ENG: CNHA

AUDI A5 (8T3) From 06/2007 to 01/2017

2.0 TDI 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Coupe, Diesel , ENG: CNHA

2.0 TDI 4WD 08/2008-01/2017, 120 kw, 1968 ccm, 163 PS, Coupe, Diesel , ENG: CAHB, CNHC, CGLD

2.0 TDI quattro 4WD 12/2011-01/2017, 130 kw, 1968 ccm, 177 PS, Coupe, Diesel , ENG: CGLC

2.0 TDI 4WD 10/2011-01/2017, 130 kw, 1968 ccm, 177 PS, Coupe, Diesel , ENG: CGLC

2.0 TDI quattro 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Coupe, Diesel , ENG: CNHA

AUDI A5 Convertible (8F7) From 02/2009 to 01/2017

2.0 TDI 4WD 05/2013-01/2017, 110 kw, 1968 ccm, 150 PS, Convertible, Diesel , ENG: CJCD, CSUA

2.0 TDI 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Convertible, Diesel , ENG: CNHA

2.0 TDI 4WD 10/2011-01/2017, 130 kw, 1968 ccm, 177 PS, Convertible, Diesel , ENG: CGLC

2.0 TDI 4WD 10/2011-05/2015, 105 kw, 1968 ccm, 143 PS, Convertible, Diesel , ENG: CJCA

2.0 TDI quattro 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Convertible, Diesel , ENG: CNHA

2.0 TDI 4WD 05/2009-06/2014, 120 kw, 1968 ccm, 163 PS, Convertible, Diesel , ENG: CGLD, CAHB

2.0 TDI quattro 4WD 01/2012-05/2015, 130 kw, 1968 ccm, 177 PS, Convertible, Diesel , ENG: CGLC

AUDI A5 Sportback (8TA) From 07/2007 to 01/2017

2.0 TDI 4WD 10/2011-01/2017, 130 kw, 1968 ccm, 177 PS, Hatchback, Diesel , ENG: CGLC

2.0 TDI 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Hatchback, Diesel , ENG: CNHA

2.0 TDI 4WD 09/2009-01/2017, 100 kw, 1968 ccm, 136 PS, Hatchback, Diesel , ENG: CAGB, CSUB, CJCB

2.0 TDI quattro 4WD 09/2013-01/2017, 140 kw, 1968 ccm, 190 PS, Hatchback, Diesel , ENG: CNHA

2.0 TDI 4WD 05/2013-01/2017, 110 kw, 1968 ccm, 150 PS, Hatchback, Diesel , ENG: CJCD, CMFB, CSUA

2.0 TDI 4WD 09/2009-01/2017, 105 kw, 1968 ccm, 143 PS, Hatchback, Diesel , ENG: CMEA, CAGA, CJCA, CMFA

2.0 TDI 4WD 09/2009-01/2017, 120 kw, 1968 ccm, 163 PS, Hatchback, Diesel , ENG: CAHB, CNHC, CGLD

2.0 TDI quattro 4WD 12/2011-01/2017, 130 kw, 1968 ccm, 177 PS, Hatchback, Diesel , ENG: CGLC

AUDI A6 C7 (4G2, 4GC) From 11/2010 to 09/2018

2.0 TDI 4WD 03/2011-09/2018, 120 kw, 1968 ccm, 163 PS, Saloon, Diesel , ENG: CGLD

2.0 TDI quattro 4WD 04/2015-09/2018, 140 kw, 1968 ccm, 190 PS, Saloon, Diesel , ENG: CNHA, DDDA

2.0 TDI 4WD 11/2013-09/2018, 140 kw, 1968 ccm, 190 PS, Saloon, Diesel , ENG: CNHA, CZJA, DDDA

2.0 TDI 4WD 01/2012-09/2018, 100 kw, 1968 ccm, 136 PS, Saloon, Diesel , ENG: CGLE, CSUE

2.0 TDI 4WD 03/2011-09/2018, 130 kw, 1968 ccm, 177 PS, Saloon, Diesel , ENG: CGLC, CMGB

AUDI A6 C7 Avant (4G5, 4GD) From 05/2011 to 09/2018

2.0 TDI 4WD 11/2013-09/2018, 140 kw, 1968 ccm, 190 PS, Estate, Diesel , ENG: CNHA, CZJA, DDDA

2.0 TDI 4WD 01/2012-09/2018, 100 kw, 1968 ccm, 136 PS, Estate, Diesel , ENG: DDCA, CGLE, CSUE

2.0 TDI 4WD 05/2011-09/2018, 120 kw, 1968 ccm, 163 PS, Estate, Diesel , ENG: CGLD

2.0 TDI 4WD 05/2011-09/2018, 130 kw, 1968 ccm, 177 PS, Estate, Diesel , ENG: CGLC, CMGB

2.0 TDI quattro 4WD 04/2015-09/2018, 140 kw, 1968 ccm, 190 PS, Estate, Diesel , ENG: CNHA, DDDA

AUDI Q5 (8RB) From 11/2008 to 12/2017

2.0 TDI quattro 4WD 11/2013-05/2017, 140 kw, 1968 ccm, 190 PS, SUV, Diesel , ENG: CNHA

2.0 TDI 4WD 11/2010-05/2013, 105 kw, 1968 ccm, 143 PS, SUV, Diesel , ENG: CJCA

2.0 TDI 4WD 09/2015-05/2017, 140 kw, 1968 ccm, 190 PS, SUV, Diesel , ENG: CNHA

2.0 TDI 4WD 05/2013-05/2017, 110 kw, 1968 ccm, 150 PS, SUV, Diesel , ENG: CJCD, CSUA

2.0 TDI quattro 4WD 08/2009-05/2013, 105 kw, 1968 ccm, 143 PS, SUV, Diesel , ENG: CAGA, CJCA

2.0 TDI quattro 4WD 11/2008-09/2012, 125 kw, 1968 ccm, 170 PS, SUV, Diesel , ENG: CGLB, CMGA, CAHA

2.0 TDI 4WD 11/2010-05/2017, 100 kw, 1968 ccm, 136 PS, SUV, Diesel , ENG: CSUB, CJCB

2.0 TDI quattro 4WD 05/2013-05/2017, 110 kw, 1968 ccm, 150 PS, SUV, Diesel , ENG: CJCD, CSUA

2.0 TDI quattro 4WD 11/2008-05/2017, 120 kw, 1968 ccm, 163 PS, SUV, Diesel , ENG: CAHB, CGLA, CNHC, CGLD

2.0 TDI quattro 4WD 06/2012-05/2017, 130 kw, 1968 ccm, 177 PS, SUV, Diesel , ENG: CGLC, CMGB

SEAT

SEAT EXEO (3R2) From 12/2008 to 05/2013

2.0 TDI 4WD 12/2008-05/2013, 88 kw, 1968 ccm, 120 PS, Saloon, Diesel , ENG: CJCC, CAGC

2.0 TDI 4WD 02/2009-05/2013, 125 kw, 1968 ccm, 170 PS, Saloon, Diesel , ENG: CGLB, CAHA

2.0 TDI 4WD 12/2008-05/2013, 105 kw, 1968 ccm, 143 PS, Saloon, Diesel , ENG: CJCA, CAGA

SEAT EXEO ST (3R5) From 05/2009 to 05/2013

2.0 TDI 4WD 07/2009-05/2013, 88 kw, 1968 ccm, 120 PS, Estate, Diesel , ENG: CJCC, CAGC

2.0 TDI 4WD 05/2009-05/2013, 105 kw, 1968 ccm, 143 PS, Estate, Diesel , ENG: CJCA, CAGA

2.0 TDI 4WD 05/2009-05/2013, 125 kw, 1968 ccm, 170 PS, Estate, Diesel , ENG: CGLB, CAHA

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.