ISR Performance Silicone Radiator Hose - Nissan RB25DET - Black

RB25DET swaps into a 240SX are common enough that ISR built a silicone hose set specifically for them. The ISR Performance black silicone radiator hoses for the Nissan RB25DET replace the aging factory rubber hoses with silicone pieces designed to handle a higher range of heat and coolant pressure, in a black finish that keeps the engine bay understated.

Why switch to silicone

Silicone has much greater strength than OEM rubber. That stops the hoses from expanding when the system is hot and pressurized, keeps them from going brittle over time, and gives the cooling system a more stable foundation on an engine that is already producing a lot of heat.

Fitment

• Nissan RB25DET
• Color: black
• Also offered by ISR in blue

Before ordering

Hose routing on a swapped car can vary, so compare the shape of your current hoses to the RB25DET factory layout before purchasing. Fit new clamps during installation, refill with fresh coolant and bleed the system fully. RB engines are prone to trapping air at the back of the head, so take your time with the bleed and recheck the level after the first drive.

All ISR Performance products are designed for off-road use only.