ISR Performance

ISR Performance Silicone Radiator Hose Kit - Nissan RB25DET - Blue

$78.38
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Preorder date - Nov 2nd 2026

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The ISR Performance silicone radiator hose kit for the Nissan RB25DET in blue replaces the factory upper and lower radiator hoses with reinforced multi-ply silicone that resists heat, pressure and cracking.

Fits RB25DET in the R33 Skyline and RB25 swapped 240SX with an ISR radiator. Includes upper and lower hoses.

From ISR Performance

ISR Performance Silicone Radiator Hose - Nissan RB25DET - Blue

ISR Has now released a line of Silicone-based coolant hoses that are designed to take a higher range of heat and coolant pressures than OEM style hoses. Silicone has a much higher strength than the OEM rubber hoses which will prevent the hoses from expanding. 

  • Will only work with stock intake manifold.
  • For RB20DET - the top hose hose just needs to be cut to fit (you don't need 90 degree curve)
  • Nissan RB25DET - Blue

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.

Free shipping on orders over $100. Ace Up Motorsports is an authorized ISR Performance dealer.

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ISR Performance Silicone Radiator Hose Kit - Nissan RB25DET - Blue