Silicone Radiator Hose Kit for Nissan 240SX (1989-1994) 2.4L

High-Temp Silicone Radiator Hose Kit for 1989-1994 Nissan 240SX (S13)

What it Does: The Silicone Radiator Hose Kit replaces the degraded factory rubber coolant hoses on the 1989-1994 Nissan 240SX to eliminate burst risks and maintain reliable cooling system pressure under high thermal loads.

The Stock Nissan 240SX Coolant Circuit Vulnerability

Factory EPDM rubber coolant hoses on the S13 platform suffer from severe thermal fatigue, petrochemical degradation, and electrochemical breakdown over decades of heat cycling. The KA24DE and early KA24E engine bays run notoriously tight clearances near the exhaust manifold, accelerating dry-rot, hardening, and internal delamination of the OEM rubber. Under hard driving, elevated cooling system pressure forces compromised rubber hoses to expand, balloon, and eventually split along the molded seams, resulting in sudden coolant loss, severe cylinder head warping, and catastrophic head gasket failure.

The Engineering Solution

This radiator hose kit utilizes high-grade, 3-ply polyester-reinforced silicone with a nominal 4.5 mm wall thickness to resist extreme temperature spikes and expansion up to high burst ratings. Molded to exact OEM routing specifically for the stock radiator and engine layout, the multi-layer silicone resists oil contamination, ozone degradation, and electrochemical degradation far beyond standard synthetic rubber. The smooth internal bore optimizes coolant velocity while minimizing flow turbulence across the upper and lower radiator necks. Included stainless steel worm-drive clamps apply uniform radial tension without cutting into the silicone jacket, maintaining a leak-free seal across wide ambient-to-operational thermal swings.

What's Included

• 2 Silicone Radiator Hoses (black, 3-ply, 4.5 mm wall)
• 4 Stainless Worm-Drive Clamps

Technical Specifications

Compatibility

• 1989-1994 Nissan 240SX 2.4L KA24DE (S13)

Frequently Asked Questions & Fitment Warnings

Does this fit the S13 240SX?

Yes, this is a direct fit for the 1989-1994 Nissan 240SX equipped with the KA24DE engine. This kit does not fit models equipped with the SR20DET engine.

Do I need to bleed the cooling system after installing these hoses?

Yes, you must fully bleed all trapped air from the cooling circuit using the factory bleed bolt on the engine to prevent air pockets and localized overheating.

The Nissan Enthusiast Standard

Keep your rear-wheel-drive icon running at peak track capability with cooling plumbing engineered to withstand the sustained high-RPM heat and stress of drift and circuit duty.