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SKU #: MISH-MMRT-JL-18 MPN #: MMRT-JL-18

Mishimoto Aluminum Expansion Tank 20-23 Jeep Wrangler JL/Gladiator JT

$335.95
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Description
If you own a Jeep Wrangler JL or Gladiator JT EcoDiesel, chances are you have heard that the factory plastic expansion tanks can crack or leak over time. This Mishimoto Aluminum Expansion Tank is designed to solve that problem with a much stronger TIG-welded aluminum construction built to handle daily driving, heat cycles, and rough off-road conditions with greater confidence and reliability. Instead of worrying about coolant leaks before your next trip or trail run, you get a more durable long-term solution that also adds a cleaner, more refined look under the hood. Along with improved durability, this tank also increases coolant capacity compared to the factory setup to help support better cooling performance. Internal OEM-style baffling helps reduce fluid slosh and aeration when driving on uneven terrain, steep angles, or rough trails, helping the cooling system stay more stable during demanding conditions. An easy-to-read sight glass replaces the factory dipstick design, making coolant level checks quicker and less frustrating during routine maintenance. The wrinkle black powder-coated finish adds corrosion resistance while keeping an OEM-style appearance that fits naturally in the engine bay. Installation is straightforward and can easily be handled in your garage before your next adventure. This kit includes the Mishimoto reservoir tank, worm gear clamp, O-ring, and a high-pressure radiator cap for a complete installation.

If you own a Jeep Wrangler JL or Gladiator JT EcoDiesel, chances are you have heard that the factory plastic expansion tanks can crack or leak over time. This Mishimoto Aluminum Expansion Tank is designed to solve that problem with a much stronger TIG-welded aluminum construction built to handle daily driving, heat cycles, and rough off-road conditions with greater confidence and reliability. Instead of worrying about coolant leaks before your next trip or trail run, you get a more durable long-term solution that also adds a cleaner, more refined look under the hood.

Along with improved durability, this tank also increases coolant capacity compared to the factory setup to help support better cooling performance. Internal OEM-style baffling helps reduce fluid slosh and aeration when driving on uneven terrain, steep angles, or rough trails, helping the cooling system stay more stable during demanding conditions. An easy-to-read sight glass replaces the factory dipstick design, making coolant level checks quicker and less frustrating during routine maintenance.

The wrinkle black powder-coated finish adds corrosion resistance while keeping an OEM-style appearance that fits naturally in the engine bay. Installation is straightforward and can easily be handled in your garage before your next adventure. This kit includes the Mishimoto reservoir tank, worm gear clamp, O-ring, and a high-pressure radiator cap for a complete installation.

Manuals and Guides
Vehicle Fitment
2020-2023 Jeep Wrangler JL/Gladiator JT
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
FEATURES & BENEFITS:
  • TIG-welded aluminum construction delivers greater strength and durability than the factory plastic tank
  • Helps eliminate common cracking and seam leaks found in OEM coolant expansion tanks
  • Increased coolant capacity supports more consistent cooling performance during daily driving and off-road use
  • Internal baffling helps reduce coolant slosh and aeration on rough trails and uneven terrain
  • Easy-to-read sight glass makes checking coolant levels faster and more convenient
  • Wrinkle black powder-coated finish adds corrosion resistance and a clean underhood appearance
  • Includes a Mishimoto high-pressure radiator cap for reliable cooling system performance
  • Simple DIY installation allows for an easy garage install before your next trip or trail ride

KIT CONTENTS::
  • (1) Mishimoto reservoir tank
  • (1) worm gear clamp
  • (1) O-ring
About Mishimoto
MISHIMOTO PERFORMANCE PARTS ONLINE

Mishimoto Automotive Performance is a leader in aftermarket cooling components. Mishimoto offers car and race enthusiasts of all levels and interests quality upgrades, from aluminum radiators to racing thermostats, which will significantly enhance engine performance. Whether you’re a daily driver behind the wheel of a diesel or gasoline truck, a track racer in a sport compact vehicle, or a motocross rider, you can trust Mishimoto products to hold up in any condition you might encounter. The research and development group at Mishimoto is a team of devoted automotive professionals who naturally anticipate the needs of drivers looking for quality cooling system upgrades. Mishimoto truck radiators are made from high-quality aluminum for dependable performance you can count on time and again.

MISHIMOTO PRODUCTS

From design to manufacturing, every Mishimoto component is carefully crafted to be the ultimate cooling system upgrade. All Mishimoto aluminum radiators are application specific, designed for direct fit on numerous popular car models and makes. Mishimoto aluminum racing radiators are designed to provide your engine with a more efficient transfer of heat over stock models, thus enhancing overall engine performance. Mishimoto dirt bike radiators are made with the same 100% brazed aluminum used in the sport compact and truck models. Mishimoto dirt bike radiator hoses are constructed of four hand-wrapped layers designed to withstand intense racing conditions. Every layer combines high-grade silicone and heat-resistant embedded fibers to withstand amplified pressure and effectively reduce heat. Mishimoto front mount intercoolers come in a range of sizes to offer the ideal air intake for any turbocharged or supercharged engine. Mishimoto offers a full catalog of cooling components, from aluminum fan shrouds to racing thermostats, all precision crafted to deliver the highest level of racing performance.

MISHIMOTO RADIATORS

The radiator on your truck plays a critical role in keeping engine temperatures at bay. Not only does it store coolant, the design of the core ensures that as air passes through the tubes, the coolant can experience a temperature drop before being recirculated back into the engine where it will be reheated again. Overtime, the core of the stock radiator will become damaged from bugs, your foot as you stand on the front bumper, or just about anything else that can damage the fins, in turn causing a loss in cooling efficiency. That said, even in new condition, the core is not designed with maximum cooling in mind. Mishimoto designs and manufacturers premium aluminum radiators that not only look exceptional, but provide additional cooling that a stock radiator simply can’t match.

MISHIMOTO INTERCOOLERS

Just as with radiators, your intercooler has a very important job to do. As air is forced into the compressor side of your turbo(s), it then passes through tubing and into your intercooler where ambient air passing through the intercooler cools the air, in turn “charging” it to superspeed it into your engine cylinders. As damage and dirt accrue, the stock intercooler can no longer adequately cool this air, resulting in a loss of boost pressure and an increase in exhaust gas temperatures (EGT). While many will fight their tuning or begin changing out injectors and turbo, many times it’s a matter of merely upgrading the intercooler. Mishimoto designs and manufactures high performance aluminum intercoolers that work just as well on performance built engines as they do on a completely stock powertrain.

MISHIMOTO CATCH CANS

Does your driveway or garage floor have oil spots? Its likely your engine has a crankcase vent. Some trucks recycle your crankcase oil back into the engine where others either have an open ended hose or a stock catch can that is open on the top, both of the latter allowing oil to land wherever gravity dictates. Mishimoto’s line of premium catch cans are designed with serviceability and cleanliness in mind. These are universal aluminum cans that allow you to route your existing hose (typically with added length) to an easily accessible area to catch all of that sludge. This allows you to dump it at will instead of constantly dripping on your undercarriage and driveway.

MISHIMOTO LIFETIME WARRANTY

Customer satisfaction has been the foundation of the Mishimoto philosophy since its inception. Mishimoto is a name customers can trust to provide a lifetime of performance satisfaction with every aluminum radiator and cooling component. To back this promise, Mishimoto extends a “no questions asked” limited lifetime warranty that covers every product in the Mishimoto catalog. Mishimoto will gladly replace an original product should customers experience a defect or issue. To avoid any unnecessary issues, Mishimoto encourages customers to have professionals handle product installation. Any concerns relating to installation or compatibility should be addressed before installing any product.

ACCIDENT PROTECTION

The Mishimoto lifetime warranty policy also provides for accident protection for Mishimoto components damaged during an accident. Accident protection warranties will be honored for customers who submit a warranty claim with pictures of the accident and an official police report within three months of the incident.