Mishimoto Performance Aluminum Radiator

2018–2023 Jeep Wrangler JL (All Trims and Variants)

MMRAD-JL-18

Overview:

The Mishimoto Performance Aluminum Radiator is engineered specifically for the 2018 to 2023 Jeep Wrangler JL, addressing the unique cooling challenges posed by its compact cooling stack. Designed to replace the often underperforming stock radiator, this high-efficiency unit maximizes cooling capacity within the limited space available, making it ideal for both daily driving and demanding off-road conditions. Whether you drive a Sport, Rubicon, Sahara, or one of the special edition Wranglers, this radiator ensures your engine stays cooler under pressure, improving reliability and performance.

With a significantly larger core and increased coolant capacity, the Mishimoto radiator effectively dissipates heat even during low-speed, high-load scenarios common in off-roading. It’s a direct-fit upgrade that enhances your Jeep’s cooling system without requiring modifications.

Key Features:

This radiator combines advanced design and durable construction to deliver superior cooling performance:

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

Construction & Design:

The Mishimoto radiator is built from high-quality aluminum, chosen for its excellent thermal conductivity and corrosion resistance. The core features extruded and strutted tubes that enhance structural integrity, preventing damage from the flex and vibrations typical of off-road driving. The end tanks are precision TIG-welded, creating a robust seal that resists cracking and leaking even after repeated heat cycles. This rugged construction ensures the radiator can endure the harsh environments and stresses that Jeep Wranglers frequently encounter.

Its oversized core and increased fin density are carefully engineered to maximize cooling efficiency within the limited space of the Wrangler JL’s front end, especially important for turbocharged 2.0L models with additional heat exchangers.

Installation & Fitment:

This performance radiator is a direct replacement for the factory unit on all 2018 through 2023 Jeep Wrangler JL models, including Sport, Sport S, Rubicon, Sahara, Willys, and their Unlimited variants, as well as special editions like the 80th Anniversary, Freedom, Islander, High Altitude, Moab, and Rubicon 392. Installation requires no modifications, making it a straightforward upgrade for enthusiasts and mechanics alike.

Its design accommodates the tight packaging of the Wrangler’s cooling system, ensuring compatibility with both naturally aspirated and turbocharged engines equipped with additional heat exchangers.

What's Included:

• Mishimoto Performance Aluminum Radiator for Jeep Wrangler JL (2018–2023)
• Installation hardware and instructions
• Mishimoto Lifetime Warranty documentation

Ideal For:

This radiator is perfect for Jeep Wrangler owners who demand improved cooling performance for daily driving, trail riding, or heavy-duty off-road use. It is especially beneficial for those with turbocharged 2.0L engines or anyone 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.