Description

Mishimoto Aluminum Expansion Tank

2015–2023 Dodge Challenger / Charger 6.2L Hellcat & 6.4L 392

Part #: MMRT-SRT-15N

The Mishimoto Aluminum Expansion Tank is a premium direct-fit replacement designed specifically for Dodge Challenger and Charger models equipped with the 6.2L Hellcat and 6.4L 392 engines from 2015 through 2023. This upgrade replaces the factory plastic coolant reservoir, which is susceptible to cracking, discoloration, and leaks over time due to heat and chemical exposure.

Engineered for enthusiasts who demand both durability and a clean, professional engine bay appearance, this tank enhances reliability while complementing the aggressive styling of Mopar muscle cars. Its robust aluminum construction and sleek design provide a long-lasting solution that maintains coolant system integrity under demanding conditions.

Key Features

Designed to improve both function and aesthetics, the Mishimoto Aluminum Expansion Tank offers:

• 100% TIG-welded high-grade aluminum construction for superior strength and durability
• Available in natural aluminum finish or micro-wrinkle black to match your vehicle’s style
• Innovative internal baffling with integrated cold-fill tab eliminates the need for external sight tubes, preserving a clean engine bay look
• Natural finish allows easy customization via powder coating, anodizing, or hydro dipping
• Engineered to withstand repeated thermal cycles without cracking, warping, or leaking
• Direct bolt-on fitment with no modifications required for Dodge Challenger and Charger 2015–2023 models, including Hellcat, Scat Pack, R/T, and other performance trims
• Improves engine bay aesthetics by replacing the dull, yellowed plastic reservoir with a sleek aluminum tank
• Includes Mishimoto Lifetime Warranty for peace of mind

Construction & Design

Crafted from premium-grade aluminum and expertly TIG-welded, this expansion tank offers exceptional resistance to heat, pressure, and coolant chemicals. Unlike the factory plastic reservoir, the aluminum tank resists cracking, discoloration, and warping, ensuring long-term reliability.

The internal baffling system minimizes coolant sloshing during aggressive driving, while the integrated cold-fill line allows for easy coolant refills without compromising the tank’s clean exterior appearance. The natural finish provides a versatile base for custom finishes, while the micro-wrinkle black option delivers a subtle, stealthy look that blends seamlessly with modern engine bays.

Installation & Fitment

The Mishimoto Aluminum Expansion Tank is a direct replacement for the factory coolant reservoir on Dodge Challenger and Charger models from 2015 through 2023, including Hellcat, Scat Pack, R/T, and other performance variants. Installation is straightforward and requires only basic hand tools, with no modifications necessary. The tank mounts securely in the stock location, ensuring a leak-free and professional fitment.

What’s Included

• Mishimoto Aluminum Expansion Tank (natural or micro-wrinkle black finish)
• All necessary mounting hardware
• Mishimoto Lifetime Warranty documentation

Ideal For

This expansion tank is ideal for Dodge Challenger and Charger owners seeking a durable, visually appealing upgrade over the factory plastic reservoir. It is especially suited for enthusiasts who drive aggressively, track their vehicles, or simply want to maintain a clean and professional engine bay appearance. Whether for daily driving or high-performance builds, this tank offers a reliable and stylish cooling system enhancement.

Fitment Summary

• Dodge Challenger 392 Hemi Scat Pack Shaker (2016)
• Dodge Challenger R/T 392 (2017–2019)
• Dodge Challenger R/T Scat Pack (2016–2023)
• Dodge Challenger R/T Scat Pack Shaker Widebody (2021)
• Dodge Challenger R/T Scat Pack Widebody (2019–2023)
• Dodge Challenger Scat Pack (2015)
• Dodge Challenger SRT 392 (2015)
• Dodge Challenger SRT Demon (2015–2018)
• Dodge Challenger SRT Hellcat (2015–2022)
• Dodge Challenger SRT Hellcat Jailbreak (2023)
• Dodge Challenger SRT Hellcat Redeye (2019–2022)
• Dodge Challenger SRT Hellcat Redeye Jailbreak (2023)
• Dodge Challenger SRT Hellcat Redeye Widebody (2019–2022)
• Dodge Challenger SRT Hellcat Redeye Widebody Jailbreak (2023)
• Dodge Challenger SRT Hellcat Widebody (2018–2022)
• Dodge Challenger SRT Hellcat Widebody Jailbreak (2023)
• Dodge Challenger SRT Jailbreak (2022)
• Dodge Challenger SRT Super Stock (2020–2023)
• Dodge Challenger T/A 392 (2017–2018)
• Dodge Challenger T/A 392 Widebody (2021)
• Dodge Charger Daytona 392 (2017–2018)
• Dodge Charger R/T 392 (2017–2018)
• Dodge Charger R/T Scat Pack (2015–2018)
• Dodge Charger Scat Pack (2019–2023)
• Dodge Charger Scat Pack 392 Widebody (2020)
• Dodge Charger Scat Pack Widebody (2022)
• Dodge Charger SRT 392 (2015–2018)
• Dodge Charger SRT Hellcat (2015–2020)
• Dodge Charger SRT Hellcat Widebody (2020–2023)