Moroso Coolant Expansion Tank

2015–2021 Dodge Challenger & Charger 6.2L Hellcat / 6.4L 392

Part #: 63812

Overview

The Moroso Coolant Expansion Tank is a direct bolt-in replacement designed specifically for Dodge Challenger and Charger models equipped with the powerful 6.2L Hellcat and 6.4L 392 HEMI engines from 2015 through 2021. This premium expansion tank is engineered to maintain optimal coolant levels and enhance the efficiency of your vehicle’s cooling system, making it an excellent upgrade or replacement for factory coolant reservoirs.

Built to withstand the rigors of high-performance driving, the Moroso tank helps keep your engine operating within safe temperature ranges, reducing the risk of overheating and coolant loss. Whether you are restoring your muscle car or upgrading for improved cooling reliability during spirited driving or track use, this expansion tank offers a seamless fit and dependable operation tailored to the demands of Dodge’s iconic SRT models.

Key Features

Designed with precision and durability, the Moroso Coolant Expansion Tank delivers reliable cooling system performance with the following key features:

• Direct bolt-in replacement for 2015–2021 Dodge Challenger and Charger 6.2L Hellcat and 6.4L 392 models
• High-quality, corrosion-resistant construction for long-lasting durability
• Maintains proper coolant expansion and recovery to protect critical engine components
• Engineered to withstand high temperatures and pressure fluctuations common in performance applications
• OEM-style fitment ensures easy installation with no modifications required
• Compatible with SRT Hellcat and 392 variants for performance-oriented cooling needs
• Improves coolant system reliability during aggressive driving and track conditions
• Robust design resists cracking, warping, and degradation over time

Construction & Design

The Moroso Coolant Expansion Tank is crafted from premium-grade materials engineered to endure the thermal and mechanical stresses typical of high-performance engines. Its durable construction resists cracking, warping, and corrosion, ensuring consistent performance even under demanding conditions. The tank’s design closely follows original equipment manufacturer specifications, guaranteeing a perfect fit and seamless integration with your vehicle’s existing cooling system components.

Attention to detail in manufacturing results in a product that not only performs reliably but also maintains the clean, professional appearance of your engine bay. The tank’s finish and mounting points are optimized for durability and ease of maintenance, providing a long-lasting solution for your cooling system needs.

Installation & Fitment

Installation of the Moroso Coolant Expansion Tank is straightforward and requires no special tools or modifications. As a direct bolt-in replacement, it fits precisely into the factory mounting locations on 2015–2021 Dodge Challenger and Charger models equipped with the 6.2L Hellcat or 6.4L 392 engines. This ensures a hassle-free upgrade or replacement process, allowing you to maintain your vehicle’s cooling system with minimal downtime.

Simply remove the original expansion tank, transfer any necessary fittings or sensors, and bolt the Moroso tank into place. Its compatibility across multiple model years and trims makes it a convenient and reliable choice for enthusiasts and restorers alike.

What's Included

• Moroso Coolant Expansion Tank (Part #63812)
• Mounting hardware for direct installation
• Installation instructions

Ideal For

This coolant expansion tank is ideal for Dodge Challenger and Charger owners who demand a reliable, OEM-quality replacement part that supports consistent cooling performance. It is especially suited for enthusiasts who engage in spirited driving, track days, or daily use and want to ensure their high-performance HEMI engines remain protected from overheating. Whether restoring a classic muscle car or upgrading the cooling system for enhanced durability, the Moroso tank delivers dependable service and peace of mind.

Moroso Performance Products builds race-proven engine and chassis support parts—especially oiling system components like oil pans, pumps, and accessories designed to maintain control under acceleration, braking, and sustained cornering. It’s a staple in drag, road race, and endurance builds where consistent oil management and reliability are non-negotiable.