Mishimoto Silicone Radiator Hose Kit

2018–2021 Jeep Wrangler JL 2.0L Turbo

Part #: MMHOSE-JLH-18BK

Overview

The Mishimoto Silicone Radiator Coolant Hose Kit is a premium upgrade designed specifically for the 2018 to 2021 Jeep Wrangler JL 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 handle the unique cooling demands of the JL’s engine, battery system, and charge air cooler.

Ideal for Jeep enthusiasts who demand reliability and longevity, these hoses offer superior resistance to heat, pressure, and coolant chemicals compared to stock components. Whether you’re navigating daily commutes or challenging off-road terrain, the Mishimoto hose kit ensures consistent coolant flow and reduces the risk of hose failure, backed by a lifetime warranty for peace of mind.

Key Features

Engineered to outperform factory hoses, the Mishimoto Silicone Radiator Hose Kit delivers enhanced durability and reliability through advanced materials and design innovations:

• Constructed from four layers of high-grade silicone reinforced with heat-resistant fibers for exceptional strength and flexibility
• One-piece lower radiator hose design eliminates the fragile plastic connector found on stock hoses, reducing potential failure points
• CNC-machined aluminum barb and mounting plate replace weak plastic components, providing a robust, corrosion-resistant connection
• Direct-fit design ensures hassle-free installation with no modifications required for 2018–2021 Jeep Wrangler JL 2.0L models
• Finished in sleek black silicone for an OEM-plus appearance that complements the engine bay
• Resistant to heat, pressure, and coolant chemicals for long-lasting, reliable performance
• Backed by Mishimoto’s Lifetime Warranty, guaranteeing quality and durability

Construction & Design

The Mishimoto hose kit features a multi-layer silicone construction that expertly balances flexibility with durability. Four layers of premium silicone material are reinforced with heat-resistant fibers to withstand the extreme thermal conditions within the Jeep Wrangler’s engine bay. This robust design prevents common issues such as cracking, swelling, and degradation that typically affect factory rubber hoses over time.

The lower radiator hose is uniquely engineered as a one-piece unit, eliminating the plastic connector found in stock hoses. Instead, it incorporates a CNC-machined aluminum barb and mounting plate, which significantly enhances the connection’s strength and corrosion resistance. This upgrade is especially beneficial for off-road enthusiasts and drivers who subject their vehicles to high-stress conditions.

Installation & Fitment

Installation of the Mishimoto Silicone Radiator Coolant Hose Kit is straightforward and designed as a direct replacement for the factory hoses. No special tools or modifications are necessary, allowing most users to complete the upgrade in about one hour. This makes it an excellent choice for both DIY mechanics and professional installers.

The kit fits a broad range of 2018 to 2021 Jeep Wrangler JL models equipped with the 2.0L turbo engine, including Sport, Sport S, Rubicon, Sahara, Willys, and special editions such as the 80th Anniversary, Freedom, Islander, Moab, High Altitude, and 4xe variants.

What's Included

• Upper radiator hose (black silicone)
• Lower radiator hose (one-piece black silicone with CNC-machined aluminum barb and mounting plate)
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

This Mishimoto Silicone Radiator Coolant Hose Kit is perfect for Jeep Wrangler JL owners seeking a durable, high-quality replacement for their factory radiator hoses. It is especially suited for drivers who frequently encounter harsh environments, off-road conditions, or who want to proactively prevent common hose failures associated with aging rubber components. Additionally, it appeals to enthusiasts looking to enhance their engine bay’s appearance with a sleek, OEM-plus finish while improving cooling system reliability.

Mishimoto is a performance cooling brand offering aluminum radiators, intercoolers, oil coolers, hoses, and supporting hardware built to manage heat on hard-driven street and track vehicles. For boosted setups and towing/off-road rigs alike, Mishimoto upgrades are designed to increase cooling capacity and reliability where factory systems can become a limitation.