Z1 Silicone G37 Radiator Coolant Overflow Hose
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Z1 Silicone G37 Radiator Coolant Overflow Hose
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Z1 Silicone G37 Radiator Coolant Overflow Hose - View 2
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Z1 Silicone G37 Radiator Coolant Overflow Hose
Z1 Silicone G37 Radiator Coolant Overflow Hose
Z1 Silicone G37 Radiator Coolant Overflow Hose - View 2

Product Description

These silicone hoses replace the factory rubber radiator overflow (reservoir) hoses on all Infiniti G37 models. Over time, the factory rubber hoses degrade and can burst from pressure and heat, causing your car to overheat and leave you stranded. Our silicone hoses are made from high-quality multi-ply reinforced silicone and custom formed for perfect fitment. Unlike conventional stock rubber hoses that deteriorate over time, dry rot, and ultimately crack, silicone hoses will stay soft and never degrade. These are the last hoses you will ever need!

Z1 silicone hose can be purchased in your choice of BLACK, RED, or BLUE.

Benefits of Z1 Silicone:

  • Exceptional thermal resistance prevents breakdown even at higher than normal operating temperatures.
  • Superior flexibility when compared to rubber, making installation and service a breeze!
  • Durable silicone material ensures these hoses will last as long as your truck.

Fits:

  • 2008-2013 Infiniti G37 Coupe
  • 2009-2013 Infiniti G37 Sedan
  • 2014-2015 Infiniti Q60 Coupe
  • 2007-2008 Infiniti G35 Sedan

Z1 offers a full line of custom-formed silicone hoses for your Nissan and Infiniti! CLICK HERE to shop the complete line of Z1 Silicone products.

Z1 Silicone G37 Radiator Coolant Overflow Hose

Fits models: G37...
Z1 Silicone G37 Radiator Coolant Overflow Hose
Z1 Silicone G37 Radiator Coolant Overflow Hose - View 2
Please review the product description if you are unsure about any of the options below.

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In stock, ships within 1 business day. 
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$29.99

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Z1 Silicone G37 Radiator Coolant Overflow Hose
$29.99
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What our customers say

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April 18, 2026
Good product, looks good in my engine compartment
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October 2, 2025
High quality, smart looking hoses that fit well. Very happy, A+
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May 20, 2025
Received items rather quickly. Items were simple and easy to install. Installed items with new clamps.
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July 31, 2024
Installation was simple & straightforward, and they're a Z1 hoses so you can't go wrong there! The original OEM rubber rad overflow hoses lasted for 217,000kms and was still working without any issues but, I was already upgrading all my original heater hoses to the Z1 silicone heater hose kit, so why not complete the rest of the hoses? Now these rad coolant overflow hoses match my heater hoses (look great) & I have peace of mind knowing that these noses will probably last for another 250,000kms!
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November 18, 2023
Great product ! Makes the engine bay look way cleaner. these hoes are a little thicker it wont go in the holder under the radiator so i zip tied it so it was move around. 5/5 product
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August 4, 2023
Great Silicone! Theres no instructions on how to install it. 1. Remove two bolts holding down coolant reservoir 2. Remove the Overflow hose from the top of reservoir 3. Remove reservoir from the car, and turn sideways so no coolant leaks out when removing the bottom hose 4. Disconnect the bottom hose 5. Connect new hoses 6. Bolt reservoir back down 7. Enjoy
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May 27, 2022
Perfect service and fast shipping thanks Z1
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December 14, 2021
These are awesome and are made with the same material as the other ones love em.
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December 4, 2021
👌🏽Amazing products always
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August 20, 2021
No problems with fitment and look a lot better than the OEM hoses.
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June 3, 2021
Great product... no complains... shipping is fast
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May 31, 2021
The blue looks Perrrrty with my Gold and Red theme!
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April 6, 2021
They work great. I like the look of the hoses as well. Recommend them over the regular hoses.
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March 9, 2021
Definitely quality made parts. Great OEM fit. Worked perfect, easy install.
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January 26, 2021
They are Good... I love the material, I truly have to get some others installed and get rid of the stock ones, they can crack at any time