ISR Performance Silicone Radiator Hose Kit Nissan 350Z LSx Swap 2003-2009 | IS-RH-LS350

The ISR Performance Silicone Radiator Hose Kit is specifically engineered for Nissan 350Z LSx engine swaps, providing superior cooling system reliability and performance. This premium silicone hose kit replaces factory rubber hoses that can't handle the demands of high-performance LSx engines, ensuring optimal coolant flow and temperature management for your build.

Key Features & Benefits

• High-Grade Silicone Construction - Superior heat resistance and flexibility compared to OEM rubber hoses, withstanding extreme temperatures without cracking or deteriorating
• LSx Swap Specific Design - Pre-formed hoses engineered specifically for Nissan 350Z LSx engine conversions, eliminating guesswork and ensuring perfect fitment
• Enhanced Durability - Silicone material resists oil, fuel, and coolant contamination while maintaining flexibility in extreme temperatures from -65°F to +350°F
• Improved Cooling Efficiency - Smooth interior bore promotes optimal coolant flow, reducing hot spots and maintaining consistent engine temperatures
• Professional Appearance - Clean, finished look that complements high-performance engine bay aesthetics
• Complete Kit Solution - All necessary hoses included for comprehensive cooling system upgrade

What's Included

• Upper radiator hose
• Lower radiator hose
• Bypass hoses (as applicable)
• Premium stainless steel clamps
• Installation hardware

Specifications

Fitment & Compatibility

This radiator hose kit is designed specifically for Nissan 350Z vehicles equipped with LSx engine swaps. Compatible with LS1, LS2, LS3, LS6, and LS7 engines installed in Z33 chassis (2003-2008 Nissan 350Z). Verify your specific engine swap configuration and cooling system setup before ordering to ensure proper fitment.

Installation

Direct replacement installation using factory mounting points and radiator connections. Recommended for installation by experienced mechanics or professional shops familiar with LSx swap cooling systems. Proper coolant bleeding procedures must be followed after installation to ensure optimal performance and prevent air pockets.