BMW F Series and G Series Coolant Cap BundleBundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black). Many people don't realize it but the OEM caps have a pressure release valve built into them.

Bundle and SAVE! Choose your color combo to dress up your engine bay!

The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay!

These caps come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black).

Many people don't realize it but the OEM caps have a pressure release valve built into them. Often times aftermarket companies don't know this either or just don't care. But our team cares about proper function just as much as we care about the appearance in every product we design. For pressure relief, our caps incorporate the OEM internals, so you get all the functionality of the original caps, ensuring a safe and reliable system in place.

These caps offer superior style and performance-grade components that guarantee a reliable fit every time. Durable billet aluminum construction provides long-lasting protection and dependability that will upgrade your engine bay for years to come.

PLEASE NOTE:

These do require assembly and swapping the pressure relief valves from your old caps to your new billet caps. 

Fitment Note

If your primary expansion tank cap looks like this:

You will need to purchase a different coolant expansion tank cap to use as the donor cap. 

BMW Part number 17117639021

• Weight: 0.631 lbs
• Material type: Anodized Aluminum
• O-Ring Material: Viton
• Retains OEM Pressure Relief: YES

Fitments

• Bmw 230i 2017 to 2023
• Bmw 230ix 2017 to 2023
• Bmw 330e 2016 to 2023
• Bmw 330i 2017 to 2023
• Bmw 330ix 2017 to 2023
• Bmw 340i 2016 to 2019
• Bmw 340ix 2016 to 2019
• Bmw 430i 2017 to 2023
• Bmw 430ix 2017 to 2023
• Bmw 440i 2017 to 2020
• Bmw 440ix 2017 to 2020
• Bmw 530e 2017 to 2023
• Bmw 530ex 2017 to 2023
• Bmw 530i 2017 to 2023
• Bmw 530ix 2017 to 2023
• Bmw 540i 2017 to 2023
• Bmw 540ix 2017 to 2023
• Bmw 550i 2010 to 2016
• Bmw 550ix 2010 to 2017
• Bmw 640ix 2018 to 2020
• Bmw 650i 2011 to 2018
• Bmw 650ix 2012 to 2018
• Bmw 740ex 2017 to 2018
• Bmw 740i 2016 to 2023
• Bmw 740ix 2016 to 2022
• Bmw 745ex 2019 to 2022
• Bmw 750i 2009 to 2019
• Bmw 750ix 2010 to 2022
• Bmw 750li 2009 to 2015
• Bmw 750lix 2010 to 2015
• Bmw 760ix 2023
• Bmw 760li 2010 to 2014
• Bmw 840i 2020 to 2023
• Bmw 840ix 2020 to 2023
• Bmw Alpina B7 2010 to 2022
• Bmw Alpina B7l 2010 to 2015
• Bmw Alpina B7lx 2011 to 2014
• Bmw Alpina B7x 2011 to 2014
• Bmw Alpina Xb7 2021 to 2023
• Bmw Hybrid 3 2013
• Bmw Hybrid 5 2012 to 2013
• Bmw Hybrid 7 2010 to 2012
• Bmw Hybrid 7l 2010 to 2014
• Bmw Hybrid X6 2010
• Bmw I8 2015 to 2020
• Bmw M2 2019 to 2023
• Bmw M240i 2017 to 2023
• Bmw M240ix 2017 to 2023
• Bmw M3 2014 to 2023
• Bmw M340i 2019 to 2023
• Bmw M340ix 2019 to 2023
• Bmw M4 2014 to 2023
• Bmw M440i 2021 to 2023
• Bmw M440ix 2021 to 2023
• Bmw M5 2012 to 2023
• Bmw M550ix 2017 to 2023
• Bmw M760ix 2017 to 2022
• Bmw M8 2020 to 2023
• Bmw M850ix 2019 to 2023
• Bmw X3 2018 to 2023
• Bmw X4 2018 to 2023
• Bmw X5 2010 to 2023
• Bmw X6 2009 to 2023
• Bmw X7 2019 to 2023
• Bmw Xm 2023
• Bmw Z4 2019 to 2023
• Toyota Supra 2019 to 2023