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Mishimoto MMTS-350Z-03L Racing Thermostat for Nissan 350Z 2003-2006

(Nissan Frontier 2005-18, Pathfinder 2001-12, Xterra 2005-15, 350Z 2003-06, Juke 2011-17; Subaru Outback 2020-21; Toyota Highlander 2014-19 + 8 more models)

Part of: Mishimoto Racing Thermostat

Other options in this family: Mishimoto MMTS-370Z-10L Mishimoto MMTS-MUS8-11 Mishimoto MMTS-350Z-07 Mishimoto MMTS-E90-07 Mishimoto MMTS-MUS-05L

Manufacturer

Picture for manufacturer Mishimoto

Part Number

MMTS-350Z-03L
22 reviews
Sale Price

$87.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Mishimoto MMTS-350Z-03L is a low-temperature racing thermostat engineered to improve cooling performance in the 2003-2006 Nissan 350Z and 2003-2007 Infiniti G35. This performance thermostat opens at a lower temperature than the factory unit, allowing coolant to flow through the cooling system earlier and more frequently, which helps reduce overall engine operating temperatures.

Key Features:

  • Lower activation temperature promotes improved engine cooling efficiency
  • Direct replacement for OEM thermostat—installs using factory mounting points
  • Helps prevent heat soak during aggressive driving or track use
  • Precision-engineered to meet strict quality standards
  • Backed by Mishimoto's Lifetime Warranty for peace of mind

This racing thermostat is an essential upgrade for enthusiasts who push their VQ-powered vehicles hard, whether on the street, track, or drift course. By maintaining lower operating temperatures, this thermostat helps protect engine components and can improve performance consistency during extended high-load driving sessions.

Compatibility: Fits 2003-2006 Nissan 350Z and 2003-2007 Infiniti G35 equipped with VQ35DE engine.

Products specifications

Fits

Nissan Frontier 2005-18, Pathfinder 2001-12, Xterra 2005-15, 350Z 2003-06, Juke 2011-17; Subaru Outback 2020-21; Toyota Highlander 2014-19, Supra 1993-98; Infiniti G35 2003-07, Q45 2002, FX35 2003-08, M35 2006-08, QX4 2001-03 + 2 more models

Color

Silver

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

TechSpec Applications

2003-2008 Infiniti FX35 3.5L--2003-2007 Infiniti G35 3.5L--2006-2008 Infiniti M35 3.5L--2001-2003 Infiniti QX4 3.5L--2005-2012 Nissan Frontier 4.0L--2001-2012 Nissan Pathfinder 3.5L/4.0L--2005-2013 Nissan Xterra 4.0L--2009-2011 Suzuki Equator 4.0L

TechSpec Includes

(1) Mishimoto Thermostat--Mishimoto Lifetime Warranty

TechSpec Chassis Codes

D40--F50--N50--R50--R51--S50--V35--Z33

TechSpec OEM Activation Temperature (F)

172.4

TechSpec Engine Codes

VQ35DE--VQ40DE--VK45DE

TechSpec Mishimoto Activation Temperature (F)

154.4

The quality of the product was perfect and ordering from the sight was really simple

Great antenna. Package arrived with both plastic end caps broken and only the foam holding the antenna in the tube. Regardless, no apparent damage.

Site and order process was great

Everything was as advertised, quick shipping

Super easy ordering and great follow up of order process. Arrived quickly direct from the manufacturer.

Fast shipping. Product arrived in good condition

Great service .. highly recommend .. A+++ Thank You

Great prices, fast delivery

good results

This company is pretty good even when I found what I was looking for cheaper then some other websites

Found you on ebay, best deal on the part I was looking for!

Easy payment option didn't have to make an account which was nice!

Great price on at least my item. A bit high on the two day shipping. Hopefully the shipping is quick!

Wicked fast shipping! 3 days from California to Key West, Florida! We are amazed by this super fast service. Part is brand new and fits perfectly! Will use you again and HIGHLY recommend you!

Best price online and quick shipment! Definately would buy from again!

good so far

I found what I wanted easily and the process was quick and easy.

Quick and easy

Easy and quick

easy, amazon pay is cool

Extremly fast shipping - Ordered and shipped in less than 12 hours. Cheapest prices I could find after thorough searching. They beat the guys with free shipping.

Very fast very easy will deff. Use those site again

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