aFe BladeRunner GT Aluminum Expansion Tank

Chrysler 300 / Dodge Challenger / Charger 11-23 5.7L/3.6L

Part #: 46-51003

Overview

The aFe BladeRunner GT Aluminum Expansion Tank is a premium upgrade designed to replace the factory coolant expansion tank on select Chrysler 300, Dodge Challenger, and Dodge Charger models equipped with 3.6L V6 and 5.7L Hemi engines from 2011 through 2024. This high-quality tank enhances engine bay reliability by increasing coolant capacity by 15%, improving thermal management during demanding driving conditions. Beyond its functional benefits, the BladeRunner GT tank adds a refined, custom look to your engine compartment with its sleek brushed aluminum finish and laser-etched aFe POWER branding.

Ideal for enthusiasts seeking both performance and style, this expansion tank offers a durable, long-lasting solution that outperforms the original plastic factory tanks. Whether you’re upgrading for improved cooling efficiency or to complement other performance modifications, the BladeRunner GT tank is engineered to meet the demands of spirited driving and daily use alike.

Key Features

Engineered for durability and style, the BladeRunner GT Aluminum Expansion Tank offers a range of features that set it apart from stock components:

• Constructed from 1/8" thick billet aluminum plates for superior strength and longevity
• 100% TIG-welded seams ensure leak-free, robust construction
• Brushed aluminum finish with laser-etched aFe POWER logo for a clean, custom appearance
• 15% increased coolant capacity compared to factory tanks for enhanced cooling performance
• Includes a clear sight tube with stainless steel fittings for easy fluid level monitoring
• Compatible with factory expansion tank cap for hassle-free installation
• Billet aluminum fittings eliminate weak points and provide secure, reliable connections
• Designed to bolt directly into the factory mounting location without modification

Construction & Design

The BladeRunner GT Expansion Tank is meticulously crafted from thick, high-grade aluminum plates, providing a significant upgrade over the OEM plastic tanks prone to cracking and discoloration. The use of billet aluminum fittings enhances durability and prevents leaks common with factory rubber or plastic connectors. The entire tank is precision TIG-welded, delivering a smooth, flawless finish that resists corrosion and withstands high engine bay temperatures.

The brushed aluminum surface not only adds a sophisticated aesthetic but also allows for easy customization if desired. The integrated sight tube, secured with stainless steel fittings, offers a clear view of coolant levels, making maintenance straightforward and reliable.

Installation & Fitment

Installation of the aFe BladeRunner GT Aluminum Expansion Tank is straightforward and designed to fit perfectly in the factory location on 2011–2024 Chrysler 300, Dodge Challenger, and Dodge Charger models with 3.6L V6 or 5.7L Hemi engines. It utilizes all existing factory connections and the original expansion tank cap, requiring no modifications or special tools. This direct-fit design ensures a quick upgrade with minimal downtime, making it accessible for both professional installers and experienced enthusiasts.

What's Included

• BladeRunner GT Aluminum Expansion Tank
• Billet aluminum fittings
• Clear sight tube with stainless steel fittings
• Installation hardware
• Instructions for installation

Ideal For

This expansion tank is perfect for Chrysler and Dodge owners looking to improve their vehicle’s cooling system reliability and engine bay appearance. It suits daily drivers, weekend warriors, and performance enthusiasts who demand enhanced durability and a clean, custom look. The increased coolant capacity helps maintain optimal engine temperatures during spirited driving, towing, or hot weather conditions, making it a practical upgrade for a wide range of applications.

Emissions Note

This product does not require a CARB Executive Order number and is compliant with emissions regulations for the specified vehicles.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.