Mishimoto

Mishimoto 18+ Jeep JL / 20+ JT (2.0L/3.6L/3.0L) Coolant Expansion Tank

SKU MMRT-JL-18

MPN misMMRT-JL-18

$335.95 · Out of stock

Mishimoto 18+ Jeep JL / 20+ JT (2.0L/3.6L/3.0L) Coolant Expansion Tank

Upgrade your Jeep Wrangler JL or Gladiator JT with an aluminum expansion tank built to withstand the toughest trails and daily driving. The stock plastic tanks in Wranglers are known for cracking and leaking at the seams. It is not a matter of if it will fail, but when. Replacing it with this TIG-welded aluminum tank ensures you are ready for your next adventure without worrying about coolant loss.--This coolant recovery tank increases fluid capacity over the factory design and features internal OEM-style baffling to prevent aeration and sloshing when your Jeep is off-camber or bouncing through rough terrain. The wrinkle black powder-coated finish not only adds corrosion resistance but also gives your engine bay a rugged, refined look. An easy-to-read sight glass replaces the factory dipstick, making fluid checks quick and straightforward.--Installation is simple and can be done before your next weekend trip, giving you peace of mind on and off the trail. Complete with a Mishimoto radiator cap and backed by our lifetime warranty, this aluminum expansion tank is the reliable upgrade every Wrangler and Gladiator owner needs.

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
2024–2025JeepWranglerRubicon 4xe
2021JeepWranglerUnlimited Freedom
2020JeepGladiatorLaunch Edition
2021JeepWranglerFreedom
2021–2022JeepWranglerUnlimited Willys Sport
2021–2022JeepWranglerUnlimited High Altitude 4xe
2020JeepGladiatorAltitude
2021JeepGladiator80th Anniversary
2024–2025JeepGladiatorHigh Tide
2023JeepWranglerHigh Tide
2020–2025JeepGladiatorRubicon
2021–2023JeepGladiatorWillys Sport
2021JeepWranglerUnlimited 80th Anniversary
2020–2025JeepGladiatorSport S
2021JeepWranglerUnlimited Islander
2024–2025JeepWranglerRubicon X 4xe
2018–2022JeepWranglerUnlimited Sahara
2023–2025JeepWranglerSahara 4xe
2020–2025JeepGladiatorSport
2021–2022JeepWranglerUnlimited Willys
2020–2025JeepGladiatorMojave
2024–2025JeepWranglerSport S 4xe
2021–2022JeepWranglerUnlimited Sahara 4xe
2024–2025JeepGladiatorNightHawk
2023JeepWranglerHigh Altitude
2021JeepWranglerIslander
2024–2025JeepGladiatorMojave X
2021JeepWrangler80th Anniversary
2018–2022JeepWranglerUnlimited Sport
2018–2025JeepWranglerSport S
2021–2022JeepWranglerUnlimited Sport Altitude
2021–2025JeepGladiatorTexas Trail
2023JeepWranglerSport Altitude
2021–2025JeepWranglerWillys
2022JeepWranglerUnlimited High Tide
2023JeepGladiatorFreedom
2023JeepWranglerSahara Altitude
2023JeepWranglerUnlimited Willys 4xe
2024–2025JeepWranglerHigh Altitude 4xe
2023JeepWranglerFreedom
2024JeepGladiatorJeep Beach
2021–2022JeepWranglerUnlimited Rubicon 4xe
2024–2025JeepWranglerRubicon X
2021–2025JeepGladiatorWillys
2023–2025JeepWranglerSahara
2021–2023JeepGladiatorHigh Altitude
2020–2023JeepGladiatorOverland
2021–2024JeepWranglerWillys Sport
2021–2022JeepWranglerUnlimited Sahara Altitude
2018–2019JeepWranglerUnlimited Moab
2022JeepGladiatorAltitude
2018–2025JeepWranglerRubicon
2024–2025JeepWranglerWillys 4xe
2018–2025JeepWranglerSport
2021–2022JeepWranglerUnlimited High Altitude
2018–2022JeepWranglerUnlimited Sport S
2024–2025JeepGladiatorRubicon X
2018–2022JeepWranglerUnlimited Rubicon
Specifications
CategoryCooling
Sub-CategoryCoolant Reservoirs
UPC840197726303
CARB ApprovedYes
Prop 65 WarningY
Weight5.6 lb
Dimensions (L×W×H)13.5 × 10.2 × 9.4 in