- Performance Parts
- Z1 Products
Product Description
This set of silicone hoses replaces the factory rubber heater core hoses found on all 2003-2006 Nissan 350Z and Infiniti G35 models equipped with a VQ35DE powertrain. These hoses carry coolant between the metal inlet and outlet tubes on the heater core that stick out of the firewall to the metal tubes on the back of the motor. Over time, the factory rubber hoses degrade and can burst from pressure and heat. Our silicone hoses are made from high-quality multi-ply reinforced silicone and custom formed for perfect fitment. These are the last hoses you will ever need. Unlike conventional stock rubber hoses that deteriorate over time, dry rot, and ultimately crack, silicone hoses will stay soft and never degrade.
Z1 silicone hose can be purchased in your choice of BLACK, RED, or BLUE. We also recommend replacing the coolant bleeder whenever servicing the heater hoses!
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:
- 2003-2006 Nissan 350Z
- 2003-2006 Infiniti G35 Sedan
- 2003-2007 Infiniti G35 Coupe
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Daniel
February 6, 2024
Good replacement for oem hoses. ****do not throw away your old hose just yet. The factory heater hose on the passenger side has rubber sleeve you need to remove. I cut mine with a razor straight down on one side. Easy to put over the new silicon hoses. You need it because the hose rubs on the firewall.
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Christopher
December 17, 2023
Longer than factory so you may trim for a perfect fit. Easy on off compared to OEM.
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Eduardo
December 14, 2023
good product, fit well, needed to cut but no big deal.
will buy more products from z1
eddie p
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Rafael
May 18, 2023
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Marco
April 10, 2023
Great replacement. This is the only one I could find of the house that wasn’t oem and $200
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Roman
February 26, 2023
Works as expected.
Perfect fit.
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Elana
January 5, 2023
Nice, looks good with new bleeder port, much more durable than just a rubber hose.
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Carlos
November 28, 2022
Really good quality parts!!
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Eliseo
July 3, 2022
Easy install and looks great.
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Richard
April 6, 2022
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Michael
February 16, 2022
High quality hose that look reall goid
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Gary
December 12, 2021
Nice look, perfect fit. If they were paired with some quality clamps to replace the oem pos they would be even better.
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Jesus
October 19, 2021
Also a useful tool to replace old oem part
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Owen
September 12, 2021
Fast delivery, fit great.
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Jeffery
June 25, 2021
Swapped these in when I was installed my pathfinder cooling mod. The stock hoses were beat to hell and looked like shit. I installed these Z1 hoses that'll last the life of the vehicle along with Z1's coolant bleeder that ALSO beats the crap out of the plastic OEM one. My engine bay has transformed due to all the Z1 goodies. Highly recommended A+
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Bradley
June 10, 2021
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Michael
June 8, 2021
I had to shorten one of the heater hoses on the passenger side, just by an inch I believe for better fitment for my Z. Also I tried but couldn't use the stock clamps for these hoses. If you are replacing these hoses go ahead a do yourself a favor and grab the Z1 metal bleeder that joins the passenger hoses together; it bleeds better and you don't have to worry about the plastic bleeder deteriorating.
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Steven
May 31, 2021
I purchased this hose set for my 06 G35 sedan. The price was great and shipping was quick. The hoses fit perfect and the quality is 5 star.
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Adrian
May 18, 2021
I thought a had a leak from one of the heater core hoses but it was the oil cooler hose in my case. I ordered these before I made the oil cooler hose discovery and installed them. It was quite the hassle with how cramped these VQ35DE engine bays are and how the spring clamps wouldn’t budge but I did it after a long fight and these hoses are holding up great! It was/is difficult to get the OEM spring clamps onto the silicone hoses after installing but I haven’t seen any leaks 👍
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Christopher
May 15, 2021
Good works very well and was the correct size
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Terrance
May 11, 2021
Fit perfectly, nice upgrade, should last forever. Highly recommended.
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Kevin
March 13, 2021
Amazing product, very high quality, and a good upgrade. Also was fast shipping. 4 stars because most of the OEM clamps do not fit back on due to the hoses being thicker, witch is a good thing but maybe offer a option with these products for a new clamp that fits well
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Reginald
February 11, 2021
Great fit! These silicon upgrades are molded the same as the OEM hoses.
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Kai
February 9, 2021
Z1 silicone hoses are the best option for your build!
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Cody
July 28, 2018
Perfect fit on my 05 G35X, feel much thicker than the OEM hoses and look really good too.
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