Mishimoto Silicone Radiator Hose Kit

2018–2021 Jeep Wrangler JL 2.0L Turbo

Part #: MMHOSE-JLH-18BL

Overview

The Mishimoto Silicone Radiator Hose Kit is a premium cooling system upgrade designed specifically for the 2018 to 2021 Jeep Wrangler JL models equipped with the 2.0L turbocharged engine. This kit replaces the factory rubber and plastic radiator hoses with durable, high-performance silicone hoses engineered to withstand the demanding conditions of modern Jeep Wranglers. Ideal for enthusiasts seeking enhanced reliability and longevity, these hoses maintain optimal coolant flow and system integrity even under extreme heat and pressure.

With the 2.0L engine’s complex cooling requirements—including circuits for the engine, battery system, and charge air cooler—Mishimoto’s silicone hoses provide a robust solution that resists cracking, swelling, and premature wear. This upgrade is perfect for off-road adventurers, daily drivers, and anyone who wants to ensure their Wrangler’s cooling system performs reliably in all conditions.

Key Features

Engineered for durability and performance, the Mishimoto Silicone Radiator Hose Kit offers significant advantages over OEM components:

• Constructed from four layers of high-grade silicone and heat-resistant fibers for superior strength, flexibility, and longevity
• One-piece lower radiator hose design eliminates the weak plastic connector found on stock hoses, reducing potential failure points
• CNC-machined aluminum barb and mounting plate replace factory plastic fittings, enhancing durability and coolant flow efficiency
• Resistant to extreme heat, pressure, and coolant chemicals, ensuring reliable operation in harsh environments
• Vibrant blue color adds a custom look, with additional color options available for personalization
• Direct bolt-on fitment requires no cutting, trimming, or modifications
• Backed by the Mishimoto Lifetime Warranty for confidence and peace of mind

Construction & Design

The Mishimoto silicone hoses are engineered to endure the challenging environment of the Jeep Wrangler JL’s engine bay. Featuring a multi-layer silicone construction, these hoses resist cracking, swelling, and degradation that commonly affect OEM rubber hoses over time. The inclusion of heat-resistant fibers adds tensile strength, preventing hose collapse or deformation under vacuum or pressure.

The lower radiator hose’s one-piece design removes the plastic connector prone to failure on stock hoses. This is paired with a precision CNC-machined aluminum barb and mounting plate, which not only improve durability but also enhance coolant flow by reducing turbulence and potential leak points, ensuring a more efficient cooling system.

Installation & Fitment

Installation is straightforward with direct OEM replacement fitment for all 2018 to 2021 Jeep Wrangler JL models equipped with the 2.0L turbo engine. No cutting, trimming, or additional modifications are necessary, making this kit an ideal upgrade for both professional installers and DIY enthusiasts. The kit fits a wide range of Wrangler trims, including Sport, Rubicon, Sahara, Willys, and special editions such as the 80th Anniversary and Freedom models.

What's Included

• Upper radiator silicone hose
• Lower radiator silicone hose with integrated CNC-machined aluminum barb and mounting plate
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

This silicone radiator hose kit is perfect for Jeep Wrangler JL owners who want to improve the reliability and longevity of their cooling system. It is especially suited for off-road enthusiasts, daily drivers, and anyone looking to replace aging or damaged factory hoses with a high-quality, durable alternative. The kit’s enhanced materials and design also make it a smart choice for those who frequently tow or operate their Wrangler in hot or demanding environments.