Radiator Coolant Silicone Hose Kit for Jeep Wrangler TJ (1997-2001) 4.0L

Heavy-Duty Radiator Coolant Silicone Hose Kit for 1997-2001 Jeep Wrangler (4.0L AMC 242 / TJ)

What it does: Replaces factory rubber cooling hoses with high-temperature, 3-ply reinforced silicone to eliminate sudden blowouts and leaks during severe off-road driving or daily commutes.

The Stock TJ Wrangler Vulnerability

The OEM EPDM rubber radiator hoses on the 4.0L AMC 242 inline-six are notorious for thermal degradation over time. Subjected to decades of engine bay heat cycles, oil exposure, and vibration, the factory rubber becomes brittle, leading to micro-cracking and sudden structural failure. When navigating slow, low-airflow trails or idling in heavy traffic, the 4.0L engine builds significant under-hood heat, pushing weakened rubber hoses past their bursting threshold and risking catastrophic coolant loss.

The Engineering Solution

This 3-ply reinforced silicone hose kit provides a permanent fix to the TJ's cooling weak points. Engineered from premium multi-layer silicone, these hoses feature a robust 4.5mm wall thickness designed to withstand extreme thermal loads ranging from -65°F to a blistering 500°F. Unlike standard rubber, the vulcanized silicone resists ozone, UV degradation, and localized heat soak from the exhaust manifold. With a bursting pressure rating of 245 PSI and sustained working pressure handling up to 0.9Mpa, the structural integrity of your cooling system is dramatically improved. The exact-fit dimensional tolerance (+/-0.5mm) ensures a leak-free seal around the water pump and radiator necks.

Technical Specifications

Compatibility

• 1997-2001 Jeep Wrangler TJ 4.0L (Left Hand Drive ONLY)

The Jeep Durability Standard

Built for the punishing environments of trail crawling and heavy towing, upgrading to multi-ply silicone guarantees your cooling system matches the legendary reliability of the 4.0L inline-six. Whether you are daily driving or rock crawling, this kit ensures your engine stays within safe operating parameters.