Description
The Mishimoto oil cooler kit, part number MMOC-350Z-03T, is a purpose-built 19-row stacked-plate cooler engineered specifically for the Nissan 350Z and Infiniti G35 platforms. Unlike generic add-on coolers, this Mishimoto oil cooler is a direct-fit system with an application-specific mounting bracket, premade braided stainless steel lines, and a billet aluminum sandwich plate available in standard or thermostatic configurations.
Designed for drivers who push their VQ35DE- and VQ35HR-powered 350Z or G35 hard, this Mishimoto oil cooler kit is proven to lower engine oil temperatures by 25°F (14°C), helping protect against heat soak during spirited driving or track sessions. The bar-and-plate core delivers efficient heat rejection in a compact, silver anodized package, while the optional thermostatic sandwich plate allows the cooler to stay out of the oil circuit during cold starts for safer daily-driver warm-up, then bring the cooler online once operating temperature is reached. Because it works with both manual and automatic applications, this Mishimoto cooler suits a wide range of 350Z and G35 builds looking to add reliable cooling without a complicated custom fabrication job.
Vehicle Applications
This oil cooler kit is a direct fit for the 2003-2009 Nissan 350Z, including the Base (2003-2008), Enthusiast (2003-2009), Touring (2003-2009), Performance (2003-2005), Track (2003-2006), Grand Touring (2005-2009), and 35th Anniversary Edition (2005) trims, as well as the 2003-2007 Infiniti G35 coupe, covering the G35 Base (2003-2007), Journey (2007), Sport (2007), and X (2004-2007) trims. It is engineered around the VQ35DE and VQ35HR engine codes and the Z33 and V35 chassis codes. Per Mishimoto’s own technical notes, this kit does not fit 350Z NISMO models, even though those chassis fall within the 2007-2008 model range.
Features
- Direct fit for the 2003-2009 Nissan 350Z and 2003-2007 Infiniti G35 coupe; compatible with manual and automatic transmissions
- 19-row, bar-and-plate stacked-plate oil cooler core in a silver anodized finish
- Premade braided stainless steel oil lines with durable -10AN fittings (4ft and 5ft lengths included)
- Billet aluminum oil sandwich plate available in standard or thermostatic form for warm-up protection and temperature control
- Reduces engine oil temperatures by 25°F (14°C)
- Includes application-specific mounting bracket, M20 stainless steel sandwich plate adapter, M20 x -10AN black banjo fitting with bolt, and mounting hardware set
- Backed by the Mishimoto Lifetime Warranty
- Not compatible with 350Z NISMO models
Specifications
- Core Type: Bar-and-Plate
- Core Row Quantity: 19
- Core Height: 5.43 in
- Core Width: 11 in
- Core Thickness: 1.97 in
- Overall Width: 1.97 in
- Overall Length: 6.44 in
- Overall Height / Base Height: 12.95 in
- Finish: Anodized, Silver
- Grade Type: Performance
- Inlet/Outlet Fitting Type: AN Flare (-10AN), Male
- Inlet/Outlet Outside Diameter: 0.625 in
- Engine Codes: VQ35DE, VQ35HR
- Chassis Codes: Z33, V35
- Recommended torque for straight fittings and banjo bolts: 15-25 lb-ft (do not exceed 35 ft-lb)
Frequently Asked Questions
What vehicles does the Mishimoto MMOC-350Z-03T oil cooler kit fit?
It is a direct fit for the 2003-2009 Nissan 350Z (Base, Enthusiast, Touring, Performance, Track, Grand Touring, and 35th Anniversary Edition trims) and the 2003-2007 Infiniti G35 coupe (Base, Journey, Sport, and X trims), covering the VQ35DE and VQ35HR engine codes and Z33/V35 chassis codes.
Does this oil cooler kit fit the 350Z NISMO?
No. Mishimoto’s technical notes state that this oil cooler kit does not fit NISMO models.
How much does this Mishimoto oil cooler reduce oil temperature?
The kit is proven to reduce engine oil temperatures by 25°F (14°C).
Will this oil cooler kit work with a manual or automatic transmission?
Yes, the Mishimoto oil cooler is a direct fit and works with both manual and automatic applications.
What is included with the Mishimoto oil cooler kit?
The kit includes an application-specific mounting bracket, a 19-row oil cooler, a 4ft and a 5ft stainless steel braided hose with -10AN fittings, an M20 oil sandwich plate, a stainless steel M20 sandwich plate adapter, an M20 x -10AN black banjo fitting with bolt, mounting hardware, and the Mishimoto Lifetime Warranty.
Is a thermostatic sandwich plate available for this kit?
Yes, the Mishimoto oil cooler kit is available with an optional thermostatic sandwich plate for safer daily-driver warm-up and additional operating temperature control.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
















