Silicone Hose Kit for Jeep Grand Cherokee (2011-2021) 3.6L

Reinforced Silicone Radiator Hose Kit for 2011-2021 Jeep Grand Cherokee

What it Does: The Silicone Hose Kit directly replaces factory EPDM rubber coolant hoses on the 2011-2021 Jeep Grand Cherokee to eliminate collapse risks, resist high-temperature degradation, and maintain pressurized coolant flow.

The Stock Jeep Grand Cherokee WK2 Cooling Vulnerability

Factory coolant circuits on the WK2 chassis rely on sulfur-cured EPDM rubber lines that undergo accelerated electrochemical degradation and thermal hardening. Subjected to sustained 210°F–230°F operating conditions typical of the 3.6L Pentastar V6, OEM hoses experience micro-cracking, oil-induced softening, and structural fatigue. Under heavy thermal cycling or towing loads, factory lower hoses are especially prone to wall softening, which risks suction collapse under high-RPM water pump draw and subsequent rapid overheating.

The Engineering Solution

This replacement kit upgrades the coolant circuit using multi-ply reinforced high-grade silicone paired with embedded heat-resistant fibers. Engineered to withstand continuous temperatures from -65°F up to 350°F and elevated burst pressures, the molded architecture maintains a high durometer rating to prevent vacuum collapse and ballooning under surge pressure. The ultra-smooth inner bore reduces fluid friction, resists coolant additive scale buildup, and prevents permeation leaks, while precision-molded factory bends ensure direct alignment with the OEM radiator outlets and thermostat housing without kinking.

Technical Specifications

Compatibility

• 2011-2021 Jeep Grand Cherokee Laredo 3.6L V6 (WK2)
• 2011-2021 Jeep Grand Cherokee Limited 3.6L V6 (WK2)
• 2011-2021 Jeep Grand Cherokee Overland 3.6L V6 (WK2)
• 2012-2021 Jeep Grand Cherokee Summit 3.6L V6 (WK2)
• 2017-2021 Jeep Grand Cherokee Trailhawk 3.6L V6 (WK2)
• 2014-2021 Jeep Grand Cherokee Altitude / High Altitude 3.6L V6 (WK2)

Frequently Asked Questions

Does this fit the WK2 Grand Cherokee?
Yes, this is a direct fit for the 2011-2021 Jeep Grand Cherokee equipped with the 3.6L Pentastar V6 engine.

Can standard factory worm-drive clamps be reused with these silicone hoses?
We recommend using lined hose clamps or constant-tension T-bolt clamps to prevent cutting into the outer silicone jacket under torque.

The Jeep Durability Standard

Built to handle severe off-road trails and heavy utility towing, this silicone kit ensures your Grand Cherokee cooling system maintains full hydraulic integrity under harsh ambient heat and demanding thermal loads.