Product Description
This machined aluminum adapter fits into the Heater Hose or any 3/4" ID hose in the coolant system. It will accommodate either 1/8" NPT or 1/4" NPT threads of most aftermarket coolant temperature sensors. This adapter can also be used with other NPT threaded fittings to splice coolant feed lines to turbochargers, etc.
Allows you to install a coolant temperature sending unit for an aftermarket gauge or a thermostatatic switch without having to drill and tap your existing metal pipes. This design allows install into a straight section of your heater hose for a perfect fit. Simply cut and trim the hose or replace your factory bleeder port (350Z / G35) or union (370Z / G37) and install this adapter in-line. Your choice of two additional standard worm clamps or spring clamps is available as an option below.
Please note: When installing your temperature sending unit an appropriate thread sealant must be used.
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Gino
April 21, 2025
Fit perfectly with silocone upgraded hoses.
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Dustin
April 22, 2024
Bought the wrong product but now I'm good for adding coolant sensor.
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William
November 23, 2023
So glad I discovered this small but important piece. This bleeder port saved my 370z. A much needed upgrade from the OEM plastic heater hose connector that eventually cracks and crumbles due to age & heat (like mine did) Also makes life easier when you’re doing coolant changes and needing to bleed the system. A must purchase!
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Cody
August 10, 2023
Great for adding an aftermarket water temp guage.
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Dominic
August 9, 2023
one i had was ridiculously rotted out and this one super dope. really helped support my argument to wife as to why i needed it. thanks.
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Joseph
July 27, 2023
Great replacement for the OEM plastic bleeder port.
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Kese
June 11, 2023
Bought this when I needed to replace my motor. OEM was shattered.
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Luis
May 26, 2023
Great quality and easy to install, allows bleeding the system easy. Way more durable than the plastic factory part.
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Abdulmatin
May 21, 2023
Yes I give it 10/10 I would recommend
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Mikhail
December 27, 2022
Easy install. Awesome design and great look
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Dario
November 11, 2022
I bought this because my old one gave out and I used a straight 3/4 inch that I got at O'Reilly but I wanted that bleeder valve and to be coolant temperature gauge ready, I'm giving a four-star only because it was leaking from the top but just add a little Teflon tape and I had no more leak
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William
October 4, 2022
I don't care for plastics, so this piece makes for the best option. Glad it was available.
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Yadian
August 17, 2022
Delivery was fast! Good taking care of
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Michael
June 1, 2022
Item as described, was easy to install
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Austyn
May 7, 2022
i did a motor swap a bought this too get rid of the oem plastic one. I put coolant into my car and it took about 10 minutes to bleed it. I couldn’t believe how fast my coolant bleed with this. i bleed it once and haven’t had any problems since. 10/10 besides that it’s an Allen wrench but yolo
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Paul
January 20, 2022
Nice stuff, I use to wire a coolant temp sensor
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Jeffery
June 25, 2021
Installed this along with Z1's heater hoses when I was doing the pathfinder mod and what a difference. This bleeder is much nicer than the stock plastic one, also the hole for the bleeder is much larger and makes bleeding the cooling system a bit easier. Definitely recommended A+
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Cleddy
May 30, 2021
Awesome product it will never break unlike OEM!!!
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Justin
May 17, 2021
Thank you for the fast shipping an great customer service!
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Lindy
April 29, 2021
very good part on mine the brass part sits a bit higher. do know if thats a new version or should i screw down further. all in all i think it works.
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Santiago
April 27, 2021
great product to add a coolant temp gauge, a must if you adding a gauge or changing your bleeder port
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William
April 26, 2021
Awesome product to replace the OEM plastic one!! The OEM one tends to crack over a period of time.
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Daryl
April 1, 2021
This is working great. I wish it had a fitting for Bosch compatible temp sensors. I had to rig one up myself.
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Reginald
February 11, 2021
Great replacement and upgrade to the all plastic bleeder port. When the coolant is drained and replaced on the G35, it will take at least three cycles of bleeding the air from the system and if do not use the correct size Phillips screw driver it will strip out the OEM plastic bleeder plug. When cut out the OEM bleeder port, I found it to be very brittle on both ends. That said, I highly recommend replacing the OEM bleeder port with this after market upgrade.
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Stephen
February 10, 2021
Used in conjunction with a thermal switch to control my radiator fans.
Great!
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Elon
January 25, 2021
Another super easy install. Old plastic unit disintegrated when removed.
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Randy
October 20, 2018
These were VERY handy for setting up coolant feed and return for my turbo set up. The brass fitting is very secure with sealant but if you want to use the 1/4 npt threading for another type of fitting you may have to ream the tapered threads deeper with a tap as my 1/4 npt to -8an fitting only threaded in about halfway. Regardless, great little product!
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Adrian
August 13, 2018
I am glad that I got this when I got the master hose kit so that I didn't have to re-use the old plastic part.
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