Mishimoto Silicone Radiator Hose Kit

2018–2021 Jeep Wrangler JL / 2020–2022 Jeep Gladiator JT 3.6L V6 Automatic

Part #: MMHOSE-JLP-18ABK

Overview

The Mishimoto Silicone Radiator Coolant Hose Kit is a premium cooling system upgrade engineered specifically for Jeep Wrangler JL models from 2018 to 2021 and Jeep Gladiator JT models from 2020 to 2022 equipped with the 3.6L V6 engine and automatic transmission. This kit replaces the factory plastic radiator hose connectors with durable, high-quality silicone hoses paired with CNC-machined aluminum fittings, delivering superior reliability and longevity under extreme conditions.

Designed for Jeep enthusiasts who demand both enhanced performance and a clean, professional engine bay appearance, this hose kit ensures optimal coolant flow and heat resistance whether you’re navigating rugged off-road trails or handling daily driving duties. The sleek black finish complements your Jeep’s engine compartment while resisting discoloration and wear over time.

Key Features

Engineered for durability and performance, the Mishimoto Silicone Radiator Hose Kit offers the following advantages:

• Direct replacement for stock plastic radiator hose connectors with a robust one-piece design
• CNC-machined aluminum barbs provide secure, leak-free connections
• Constructed from five layers of premium silicone reinforced with heat-resistant embedded fibers
• Exceptional heat tolerance to withstand high engine temperatures
• Superior pressure resistance ensures reliable coolant flow under demanding conditions
• Includes both radiator inlet and outlet hoses for a complete cooling system upgrade
• Finished in sleek black for a clean, professional appearance
• Includes four worm-gear clamps and a mounting bracket for straightforward installation
• Backed by the Mishimoto Lifetime Warranty for peace of mind

Construction & Design

Each hose in this kit is crafted from five layers of high-grade silicone, reinforced with embedded fibers that provide outstanding resistance to heat, pressure, and abrasion. This multi-layer construction maintains hose flexibility and strength even under extreme operating conditions, preventing premature failure common with factory plastic components.

The CNC-machined aluminum fittings are precisely engineered for tight tolerances and corrosion resistance, ensuring a secure and durable connection. The one-piece hose design eliminates weak points found in multi-piece assemblies, reducing the risk of leaks and failures. The black silicone finish enhances durability and resists discoloration and cracking, maintaining a clean look throughout the life of your vehicle.

Installation & Fitment

The Mishimoto Silicone Radiator Hose Kit is designed for direct bolt-on installation with no modifications required. It fits Jeep Wrangler JL models from 2018 through 2021 and Jeep Gladiator JT models from 2020 through 2022 equipped with the 3.6L V6 engine and automatic transmission. Included worm-gear clamps and a mounting bracket simplify installation, ensuring a secure fit and reliable coolant system performance.

This kit is an excellent upgrade for Jeep owners seeking to improve their vehicle’s cooling system durability and aesthetics without the hassle of custom fabrication or complex installation.

What's Included

• Radiator inlet silicone hose
• Radiator outlet silicone hose
• Four worm-gear clamps
• Mounting bracket
• Installation instructions

Ideal For

This silicone radiator hose kit is perfect for Jeep Wrangler JL and Gladiator JT owners who want to enhance their vehicle’s cooling system reliability and appearance. It is especially suited for off-road enthusiasts, daily drivers, and anyone seeking a durable, long-lasting upgrade to factory radiator hoses. Whether you’re rock crawling, trail riding, or commuting, Mishimoto’s silicone hoses provide peace of mind and improved cooling performance under all conditions.

Fitment Summary

• Jeep Wrangler JL 3.6L V6 (2018–2021) with automatic transmission
• Jeep Gladiator JT 3.6L V6 (2020–2022) including 80th Anniversary, Altitude, High Altitude, Launch Edition, Mojave, Overland, Rubicon, Sport, Sport S, Willys, and Willys Sport trims
• Jeep Wrangler Unlimited variants from 2018 to 2021 including Rubicon, Sahara, Sport, Sport S, Willys, and special editions

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.