Mishimoto Performance Aluminum Radiator

2018–2026 Jeep Wrangler JL & Gladiator 2.0L Turbo, 3.6L V6, 3.0L EcoDiesel

Part #: MMRAD-JL-18

Overview

The Mishimoto Performance Aluminum Radiator is a precision-engineered cooling solution designed specifically for the 2018 through 2026 Jeep Wrangler JL and Gladiator models. Built to address the unique thermal challenges of these vehicles, this radiator replaces the factory unit with a high-efficiency core that maximizes cooling capacity within the tight confines of the Wrangler and Gladiator’s engine bay. Whether you own a Jeep equipped with the 2.0L turbocharged engine, the 3.6L V6, or the 3.0L EcoDiesel, this radiator ensures your engine maintains optimal temperatures under both daily driving and demanding off-road conditions.

With a significantly larger core volume and increased coolant capacity, the Mishimoto radiator excels at dissipating heat during low-speed, high-load scenarios common in off-road environments. This upgrade enhances engine reliability and performance by preventing overheating and maintaining consistent cooling efficiency.

Key Features

Designed with advanced engineering and durable materials, the Mishimoto Performance Aluminum Radiator offers the following key benefits:

• 51% larger core volume compared to the stock radiator for superior cooling efficiency
• 38% greater coolant capacity to manage increased thermal loads
• 37% increase in fin surface area to improve heat transfer within the compact Wrangler cooling stack
• Oversized single-row core design that optimizes every square inch for maximum heat dissipation
• Full aluminum construction for excellent thermal conductivity and reduced weight
• TIG-welded end tanks engineered to resist cracking and leaks under vibration and heat cycles
• Extruded and strutted tubes provide enhanced structural rigidity to withstand chassis flex during off-road use
• Direct-fit replacement requiring no modifications for easy installation
• Backed by Mishimoto’s Lifetime Warranty for long-term peace of mind

Construction & Design

Crafted from high-quality aluminum, this radiator combines exceptional thermal conductivity with corrosion resistance to ensure long-lasting durability. The core features extruded and strutted tubes that reinforce structural integrity, preventing damage from the flexing and vibrations typical of off-road driving. Precision TIG welding on the end tanks creates a robust seal that resists cracking and leaking even after repeated exposure to heat cycles and harsh conditions.

The oversized core and increased fin density are meticulously engineered to maximize cooling efficiency within the limited space of the Jeep Wrangler JL and Gladiator front ends. This is especially critical for turbocharged 2.0L engines, which generate additional heat and often include extra heat exchangers.

Installation & Fitment

This Mishimoto radiator is a direct replacement for the factory unit on all 2018 through 2026 Jeep Wrangler JL models—including Sport, Sport S, Rubicon, Sahara, Willys, and Unlimited variants—as well as the 2020 through 2026 Jeep Gladiator models with 3.0L EcoDiesel and 3.6L V6 engines. It also fits special edition Wranglers such as the 80th Anniversary, Freedom, Islander, High Altitude, Moab, and Rubicon 392.

Installation is straightforward and requires no modifications, making it an ideal upgrade for both enthusiasts and professional mechanics. The radiator’s design accommodates the tight packaging of the Wrangler and Gladiator cooling systems, ensuring compatibility with naturally aspirated and turbocharged engines equipped with additional heat exchangers.

What's Included

• Mishimoto Performance Aluminum Radiator for Jeep Wrangler JL and Gladiator (2018–2026)
• Installation hardware
• Detailed installation instructions
• Mishimoto Lifetime Warranty documentation

Ideal For

This radiator is perfect for Jeep Wrangler and Gladiator owners seeking improved cooling performance for daily driving, trail riding, or heavy-duty off-road use. It is especially beneficial for vehicles equipped with turbocharged 2.0L engines or those experiencing overheating issues with the stock radiator. If you want a durable, reliable cooling upgrade that fits seamlessly and enhances your Jeep’s capability, the Mishimoto Performance Aluminum Radiator is an excellent choice.

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.