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A Radiator Coolant Expansion Tank (Reservoir) – OEM 1374132080 is an essential part of the cooling system for popular light commercial vehicles including the Fiat Ducato, Peugeot Boxer and Citroën Relay. This tank stores excess coolant as engine temperature rises and feeds it back into the cooling circuit as temperatures drop, helping maintain optimal coolant levels, pressure balance and efficient engine temperature control. Failing or cracked expansion tanks can lead to coolant loss, overheating, low-coolant warnings and potential engine damage, making timely replacement crucial for reliable van operation.
OEM Number: 1374132080, 1611966680, 1674058380, 1374133080, 167405838,
Fitting Position : Front Axle, Upper
Quantity : 1
| Make | Model | Variant | Type | Engine | Chassis | Year |
|---|---|---|---|---|---|---|
| Citroën | Relay | Diesel Bus | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Bus | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Bus | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Bus | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD II -- | 2011-2020 |
| Citroën | Relay | Diesel Bus | 2.2 HDi 130 | 2198cc 96KW 130HP 4HH (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Bus | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Bus | 3.0 HDi 180 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Chassis Cab | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Chassis Cab | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Chassis Cab | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Chassis Cab | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD II -- | 2011-2020 |
| Citroën | Relay | Diesel Chassis Cab | 2.2 HDi 130 | 2198cc 96KW 130HP 4HH (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Chassis Cab | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Chassis Cab | 3.0 HDi 180 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Van | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Van | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Van | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD II -- | 2015-2019 |
| Citroën | Relay | Diesel Van | 2.2 BlueHDi 120 | 2179cc 88KW 120HP 4HA (DW12RUE) | FWD II -- | 2019-2024 |
| Citroën | Relay | Diesel Van | 2.2 BlueHDi 140 | 2179cc 103KW 140HP 4HB (DW12RUD);BNF (DW12RUD) | FWD II -- | 2019-2024 |
| Citroën | Relay | Diesel Van | 2.2 BlueHDi 165 | 2179cc 121KW 165HP 4HH (DW12RUC) | FWD II -- | 2019-2024 |
| Citroën | Relay | Diesel Van | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD II -- | 2011-2020 |
| Citroën | Relay | Diesel Van | 2.2 HDi 130 | 2198cc 96KW 130HP 4HH (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Van | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD II -- | 2011-2024 |
| Citroën | Relay | Diesel Van | 3.0 HDi 180 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD II -- | 2011-2024 |
| Fiat | Ducato | Diesel Bus | 115 Multijet 2.0 D | 1956cc 85KW 116HP 250 A1.000;250 A2.000 | FWD -- 250_,560_ | 2011-2024 |
| Fiat | Ducato | Diesel Bus | 130 Multijet 2.3 D | 2287cc 96KW 131HP F1AE0481N;F1AE3481D;F1AGL411D;F1AGL411M | FWD -- 250_,560_ | 2007-2024 |
| Fiat | Ducato | Diesel Bus | 150 Multijet 2.3 D | 2287cc 109KW 148HP F1AE3481E | FWD -- 250_,560_ | 2011-2024 |
| Fiat | Ducato | Diesel Bus | 150 Multijet 2.3 D | 2287cc 110KW 150HP F1AGL411A;F1AGL411C | FWD -- 250_,560_ | 2015-2024 |
| Fiat | Ducato | Diesel Bus | 180 Multijet 3.0 D | 2999cc 130KW 177HP F1CE3481E | FWD -- 250_,560_ | 2011-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 115 Multijet 2.0 D | 1956cc 85KW 116HP 250 A1.000;250 A2.000 | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 130 Multijet 2.3 D | 2287cc 96KW 131HP F1AE0481N;F1AE3481D;F1AGL411D | FWD -- 250_ | 2006-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 150 Multijet 2.3 D | 2287cc 109KW 148HP F1AE3481E | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 150 Multijet 2.3 D | 2287cc 110KW 150HP F1AGL411C | FWD -- 250_ | 2015-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 180 Multijet 2.3 D | 2287cc 130KW 177HP F1AGL4111;F1AGL411B | FWD -- 250_ | 2015-2024 |
| Fiat | Ducato | Diesel Chassis Cab | 180 Multijet 3.0 D | 2999cc 130KW 177HP F1CE3481E | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Diesel Van | 115 Multijet 2.0 D | 1956cc 85KW 116HP 250 A1.000;250 A2.000 | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Diesel Van | 130 Multijet 2.3 D | 2287cc 96KW 131HP F1AE0481N;F1AE3481D;F1AGL411D | FWD -- 250_ | 2006-2024 |
| Fiat | Ducato | Diesel Van | 150 Multijet 2.3 D | 2287cc 109KW 148HP F1AE3481E | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Diesel Van | 150 Multijet 2.3 D | 2287cc 110KW 150HP F1AGL411A;F1AGL411C | FWD -- 250_ | 2015-2024 |
| Fiat | Ducato | Diesel Van | 180 Multijet 2.3 D | 2287cc 130KW 177HP F1AGL4111;F1AGL411B | FWD -- 250_ | 2015-2024 |
| Fiat | Ducato | Diesel Van | 180 Multijet 3.0 D | 2999cc 130KW 177HP F1CE3481E | FWD -- 250_ | 2011-2024 |
| Fiat | Ducato | Petrol Bus | 140 Natural Power | 2999cc 100KW 136HP F1CE0441A;F1CFA401A;F1CFA401C | FWD -- 250_,560_ | 2009-2024 |
| Fiat | Ducato | Petrol Van | 140 Natural Power | 2999cc 100KW 136HP F1CE0441A;F1CFA401A;F1CFA401C | FWD -- 250_ | 2009-2024 |
| Peugeot | Boxer | Diesel Bus | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Bus | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Bus | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Bus | 2.2 BlueHDi 120 | 2179cc 88KW 120HP 4HA (DW12RUE) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Bus | 2.2 BlueHDi 140 | 2179cc 103KW 140HP 4HB (DW12RUD) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Bus | 2.2 BlueHDi 165 | 2179cc 121KW 165HP 4HH (DW12RUC) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Bus | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD -- -- | 2011-2020 |
| Peugeot | Boxer | Diesel Bus | 2.2 HDi 130 | 2198cc 96KW 131HP 4HH (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Bus | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Bus | 3.0 HDi 175 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD -- -- | 2015-2023 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 BlueHDi 120 | 2179cc 88KW 120HP 4HA (DW12RUE) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 BlueHDi 140 | 2179cc 103KW 140HP 4HB (DW12RUD) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 BlueHDi 165 | 2179cc 121KW 165HP 4HH (DW12RUC) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD -- -- | 2011-2020 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 HDi 130 | 2198cc 96KW 131HP 4HH (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Chassis Cab | 3.0 HDi 175 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Van | 2.0 BlueHDi 110 | 1997cc 81KW 110HP AHM (DW10FUE) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Van | 2.0 BlueHDi 130 | 1997cc 96KW 130HP AHN (DW10FUD) | FWD -- -- | 2015-2019 |
| Peugeot | Boxer | Diesel Van | 2.0 BlueHDi 160 | 1997cc 120KW 163HP AHP (DW10FUC) | FWD -- -- | 2015-2023 |
| Peugeot | Boxer | Diesel Van | 2.2 BlueHDi 120 | 2179cc 88KW 120HP 4HA (DW12RUE) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Van | 2.2 BlueHDi 140 | 2179cc 103KW 140HP 4HB (DW12RUD) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Van | 2.2 BlueHDi 165 | 2179cc 121KW 165HP 4HH (DW12RUC) | FWD -- -- | 2019-2024 |
| Peugeot | Boxer | Diesel Van | 2.2 HDi 110 | 2198cc 81KW 110HP 4HG (P22DTE) | FWD -- -- | 2011-2020 |
| Peugeot | Boxer | Diesel Van | 2.2 HDi 130 | 2198cc 96KW 131HP 4HH (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Van | 2.2 HDi 150 | 2198cc 110KW 150HP 4HJ (P22DTE) | FWD -- -- | 2011-2024 |
| Peugeot | Boxer | Diesel Van | 3.0 HDi 175 | 2999cc 130KW 177HP F1CE3481E (F30DT) | FWD -- -- | 2011-2024 |
| Make | Model | Variant | Type | Engine | Chassis | Year |
Our SKU: TF1374132080_94
All our Radiator Coolant Expansion Tank For Fiat Ducato Peugeot Boxer Citroën Relay are OEM quality and reliable after market car parts. This Radiator Coolant Expansion Tank For Fiat Ducato Peugeot Boxer Citroën Relay is specifically compatible with Citroën: Relay, Fiat: Ducato, Peugeot: Boxer, .
Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.
Maintains Correct Coolant Levels: Holds excess coolant from the radiator and returns it to the system as the engine cools to maintain stable coolant volume and pressure.
Prevents Overheating: By helping regulate pressure and fluid flow in the cooling circuit, it supports efficient heat management and reduces the risk of overheating under load or in hot conditions.
Direct OEM Referenced Fit: Designed to replace the OEM expansion tank with part number 1374132080 and compatible references like 1374133080, 1611966680 and 1674058380, ensuring straightforward fitment on applicable Fiat / Peugeot / Citroën vans.
Durable Aftermarket Construction: Made from heat-resistant plastic to withstand engine-bay temperatures, vibration and everyday use.
Wide Vehicle Coverage: Fits many Ducato III / Boxer / Relay models across diesel engines (e.g., 2.2 L, 2.3 L, 3.0 L) — ideal when the original tank shows cracks, leaks or discolouration.
Q1: What is a radiator coolant expansion tank?
A: It’s a reservoir that captures excess engine coolant when temperatures rise, and feeds it back into the cooling system as the engine cools, helping maintain correct coolant levels and pressure.
Q2: Which vehicles does part 1374132080 fit?
A: This expansion tank commonly fits Fiat Ducato, Peugeot Boxer and Citroën Relay vans — especially models built approximately 2014-onwards — with compatible diesel engines. Always match your vehicle’s OEM number to ensure correct fitment.
Q3: How do I know if the expansion tank needs replacing?
A: Look for cracks, leaks, coolant smell, low-coolant warnings on the dash or overheating — these are common signs of a failing reservoir or cap.
Q4: Does the tank come with a cap and sensors?
A: Some aftermarket tanks include the cap and sensor ports, but this varies by listing — check the product description to confirm what’s included with your purchase.
Q5: Is this a difficult replacement?
A: Replacing an expansion tank is usually a moderate DIY task: drain some coolant, disconnect hoses and fasteners, fit the new tank and refill coolant. Professional installation helps ensure leak-free sealing and correct coolant bleed.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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