Mishimoto Wrinkle Black Aluminum Coolant Expansion Tank for Jeep Wrangler JL 2018-2025 & Gladiator JT 2020-2025 (2.0L / 3.6L / 3.0L)

Fits select 2018-2025 Jeep Wrangler JL and 2020-2025 Jeep Gladiator JT (2.0L / 3.0L / 3.6L).

The factory plastic coolant expansion tanks in the Jeep Wrangler JL and Gladiator JT are prone to failure, often cracking at the seams due to repetitive heat cycles and off-road vibrations. Mishimoto solves this vulnerability with a TIG-welded aluminum expansion tank designed for maximum durability on the trail or the street. This upgrade replaces the brittle OE unit with a robust aluminum housing that offers increased fluid capacity and superior reliability over the stock design.

This tank is engineered with internal OEM-style baffling to prevent coolant aeration and sloshing during high-angle maneuvers or rough terrain. The integrated sight glass allows for instant fluid level checks, eliminating the need for a messy dipstick. Finished in a durable wrinkle black powder coat, it provides a rugged aesthetic while resisting corrosion in harsh environments. Installation is a straightforward bolt-on process that can be completed before your next adventure.

• Direct-fit for 2018-2025 Jeep Wrangler JL and 2020-2025 Jeep Gladiator JT
• All-aluminum, TIG-welded construction eliminates plastic seam failures
• Internal baffling prevents fluid slosh and aeration during off-camber driving
• Increased coolant capacity over the factory design for improved thermal management
• Integrated sight glass for quick fluid level monitoring
• Includes Mishimoto radiator cap and all necessary hardware
• Durable wrinkle black powder-coated finish for corrosion resistance
• Manufacturer Part Number: MMRT-JL-18
• Mishimoto Lifetime Warranty