Mishimoto Oil Cooler Kit Thermostatic Black 03-09 350Z

Mishimoto Oil Cooler Kit Thermostatic Black 03-09 350Z cools engine oil to improve thermal stability and reduce operating temperatures by 25 degrees for reliable performance in Nissan 350Z and Infiniti G35 Coupe applications.

Designed and manufactured by Mishimoto, this thermostatic oil cooler kit is intended as a direct-fit solution for the 2003–2009 350Z and compatible with both manual and automatic transmissions. The kit focuses on consistent oil temperature control to protect engine components and maintain oil viscosity under sustained driving conditions.

• Thermostatic oil cooler — Maintains target oil temperature by routing oil through the cooler only when cooling is required; this ensures efficient warm-up and prevents overcooling.
• Direct-fit design — Engineered to match factory mounting points and hose routings for an accurate installation that minimizes modification and fitment uncertainty.
• Compatible with manual and automatic applications — Validated for both transmission types to provide the same thermal control and reliability across drivetrain variants.
• Black finish — Provides corrosion resistance and a subdued appearance for a clean engine-bay integration.
• Proven 25° reduction in oil temperature — Demonstrated performance improvement to lower oil operating temperatures, helping preserve oil life and protect internal components during high-load operation.

Every element of the kit is intended to deliver predictable, serviceable cooling performance with minimal installation complexity. The thermostatic control prioritizes operating temperature management, reducing cold-start overcooling while engaging cooling capacity under higher thermal loads.

Included with the kit: Please refer to the product listing for specific content details and part counts supplied with this Mishimoto oil cooler kit.

Mishimoto engineering emphasizes fitment accuracy and functional durability to meet the demands of street and track use, offering a focused solution for owners seeking measurable oil-temperature control in their 350Z / G35 Coupe.