Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
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$335.95 set
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Features, Description, Q&A, Specs & Installation
Performance Cooling Upgrade. The Mishimoto Aluminum Coolant Expansion Tank is a premium replacement for the factory plastic reservoir in your 2020 to 2026 Jeep Gladiator JT. Designed to withstand the rigors of off-roading and daily driving, this tank offers increased coolant capacity, improved reliability, and a sleek, performance-oriented look. It's the perfect solution to eliminate factory tank failures and enhance your vehicle's cooling system.
Construction and Appearance. Constructed from TIG-welded aluminum, this tank is built for durability and longevity. Internal baffling minimizes fluid slosh and aeration under acceleration or uneven terrain, while the easy-to-read sight glass makes fluid level checks quick and accurate. The raw or polished aluminum finish adds an aggressive, high-performance aesthetic under the hood.
Installation. Installation is simple and designed for DIY mechanics—no special tools or modifications are required. The tank includes a high-pressure Mishimoto radiator cap for improved system pressure control and overall cooling efficiency.
Warranty. This product is backed by the Mishimoto Lifetime Warranty for peace of mind and long-term support.
Application. This Mishimoto Aluminum Coolant Expansion Tank fits 2020 to 2026 Jeep Gladiator JT models.
Mishimoto MMRT-JL-18
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
What's in the Box