More VW Engine Coolant Thermostat - Genuine VW 04E121113F
VW Engine Coolant Thermostat - Genuine VW 04E121113F
Genuine VW Audi
SKU: VAG-04E121113F

VW Engine Coolant Thermostat - Genuine VW 04E121113F

Jetta

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What does this include?

Description

Details

SKU:
VAG-04E121113F
FCP Euro ID:
399773
Quality:
Genuine

OE Numbers

04E121113F

MFG Numbers

N/A

Product Information

NOTE:

  • Inner thermostat found at the water pump
  • 95°C
Engine Coolant Thermostat

Thermostats are a simple device which regulates coolant flow through the engine. When cold it will stay closed, stopping coolant flow and helping the engine warm up faster. Once up to temperature, it will open and allow normal coolant flow and maintain proper engine temperature. Always install with the 'jiggle pin' bleed valve at 12 o'clock when possible.

For many applications, multiple temperature ratings are available. These ratings denote when the thermostat opens, and in extreme climates different temperature ratings can be used to assist the vehicle in maintaining proper temperatures. In very hot desert climates for instance, a lower temperature rated thermostat may be preferred.

There are two types of thermostat failures:

Thermostat stuck open (most common): Coolant will flow through the engine constantly from cold, preventing the engine from reaching operating temperature. Usually this means a rich mixture resulting in poor fuel mileage and potential catalytic converter damage.

Thermostat stuck closed: If the thermostat is stuck closed it will restrict flow into the engine resulting in an overheating condition, resulting in potential catastrophic engine damage.

Engine Coolant Thermostat Failure Symptoms
  • Overheating engine
  • Engine not reaching optimal running temperature
  • Radiator fan not engaging

About Genuine VW Audi

The Volkswagen Group, also known as “VAG”, consists of Volkswagen, Audi, Lamborghini, Bentley, Bugatti, Porsche, Ducati, MAN, Scania, SEAT, and Skoda. The original parts used by VAG to build your car are available as replacement parts under the “Genuine VAG” brand. Manufactured under the direction of VAG, expect excellent quality and a premium price since these parts are available exclusively through the VAG Dealership network.

You may not realize this, but the parts that make up your VAG are not necessarily manufactured by VAG. No cause for concern, as VAG designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for VAG for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine VAG parts box and find an OEM branded part inside, simply with the addition of a VAG logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.

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  • 2019 Volkswagen Jetta SEL Premium Engine Coolant Thermostat (To Water Pump)
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    Notes: Inner - 95°C
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    Manual FWD Sedan 1.4L L4 DJXA Gas
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    Notes: Inner - 95°C
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    Automatic FWD Sedan 1.4L L4 DJXA Gas
    Notes: Inner - 95°C
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    Automatic FWD Sedan 1.4L L4 DGXA Gas
    Notes: Inner - 95°C
  • 2021 Volkswagen Jetta R-Line Engine Coolant Thermostat (To Water Pump)
    Manual FWD Sedan 1.4L L4 DGXA Gas
    Notes: Inner - 95°C
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    Automatic FWD Sedan 1.4L L4 DGXA Gas
    Notes: Inner - 95°C
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    Manual FWD Sedan 1.4L L4 DGXA Gas
    Notes: Inner - 95°C
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    Notes: Inner - 95°C
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    Notes: Inner - 95°C
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    Automatic FWD Sedan 1.4L L4 DGXA Gas
    Notes: Inner - 95°C

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