STILLEN 2003-2009 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 Coupe Power Steering Cooler Kit - 400735

Upgrade your steering system with the STILLEN Heavy Duty Power Steering Cooler Kit for the Nissan 350Z (Z33) and Infiniti G35 Coupe (2003–2007). Designed for both casual drivers and performance enthusiasts, this kit increases power steering fluid capacity, improves heat dissipation, and eliminates the risk of boiling or overcooking the fluid—especially during spirited driving, auto-cross, or canyon runs.

Unlike the stock cooler, the STILLEN Power Steering Cooler features larger fluid lines and a high-capacity reservoir, ensuring consistent fluid pressure and temperature under extreme conditions. Whether your vehicle is AWD or RWD, 6-speed or automatic, this kit is engineered to maintain reliable steering performance and prevent premature wear of the power steering system.

Bolt-on installation is straightforward for the 350Z, using stock mounting points. For the G35 Coupe, minor drilling is required due to factory mounting variations across production years. All necessary hoses, fittings, hardware, and instructions are included.

Features & Benefits

• Heavy Duty Power Steering Fluid Cooler – Prevents overheating and fluid boil-over
• Increases Fluid Capacity – Larger reservoir improves performance and durability
• Eliminates Boil-Over – Maintains consistent fluid temperature under heavy use
• Vehicle-Specific Bracket – Custom-fit for AWD and RWD models
• Complete Kit – Includes pre-installed fittings, hoses, hardware, and instructions
• Bolt-On Installation – Easy to install for 350Z; minor drilling required for G35 Coupe
• Street & Performance Ready – Ideal for daily driving, track use, or extreme canyon runs

Specifications

• Fitment: 2003–2009 Nissan 350Z (Z33) / 2003–2007 Infiniti G35 Coupe
• Transmission Compatibility: 6-Speed and Automatic models
• Components Included: Cooler, bracket(s), hoses, fittings, hardware, instructions
• Installation: Bolt-on (350Z), requires minor drilling (G35 Coupe)

Vehicle Fitment

• 2003–2009 Nissan 350Z [Z33] (6-Speed / Automatic)
• 2003–2007 Infiniti G35 Coupe (6-Speed / Automatic)