Granatelli Motor Sports Billet Thermostat Housing

2018–2021 Jeep Grand Cherokee / 2021 Dodge Durango

431000

Overview:

The Granatelli Motor Sports Billet Thermostat Housing is a precision-engineered upgrade designed specifically for the Jeep Grand Cherokee models from 2018 to 2021 and the 2021 Dodge Durango. Crafted to replace the factory thermostat housing, this billet aluminum component offers enhanced durability and improved thermal management for high-performance applications. Ideal for enthusiasts and professionals seeking reliable cooling system upgrades, it ensures optimal engine temperature regulation under demanding driving conditions.

Whether you drive a Jeep Grand Cherokee Trackhawk or a Dodge Durango SRT Hellcat, this thermostat housing provides a robust solution that withstands the rigors of track use, towing, or spirited street driving. It is engineered to maintain consistent coolant flow, helping to prevent overheating and improve overall engine efficiency.

Key Features:

Designed with performance and longevity in mind, the Granatelli Motor Sports Billet Thermostat Housing offers the following key features:

• Precision CNC-machined from high-grade billet aluminum for superior strength and heat dissipation
• Direct bolt-on fitment for Jeep Grand Cherokee (2018–2021) and Dodge Durango (2021) models, ensuring hassle-free installation
• Enhanced sealing surfaces to prevent coolant leaks and maintain system integrity
• Improved coolant flow design to optimize engine temperature regulation
• Corrosion-resistant finish to withstand harsh under-hood environments
• Compatible with factory thermostat and cooling system components
• Ideal for high-performance and heavy-duty applications, including track use and towing

Construction & Design:

The thermostat housing is crafted from premium billet aluminum, chosen for its excellent thermal conductivity and strength-to-weight ratio. The CNC machining process ensures tight tolerances and a perfect fit, reducing the risk of leaks and improving durability compared to stock plastic housings. Its robust construction resists cracking and warping caused by heat cycling and pressure fluctuations common in high-performance engines.

The housing features a corrosion-resistant finish that protects against rust and chemical exposure, extending the service life of the component. Its design maintains compatibility with OEM thermostats and sensors, allowing for straightforward integration into the existing cooling system without modification.

Installation & Fitment:

Installation of the Granatelli Motor Sports Billet Thermostat Housing is straightforward and requires no special modifications. It is a direct replacement for the factory thermostat housing on the specified Jeep Grand Cherokee and Dodge Durango models. Standard hand tools are sufficient for removal of the old housing and installation of the new billet unit.

It is recommended to replace the thermostat gasket or O-ring during installation to ensure a proper seal. This upgrade is suitable for both professional mechanics and experienced enthusiasts comfortable with basic engine maintenance.

What's Included:

• Granatelli Motor Sports Billet Thermostat Housing
• Sealing gasket or O-ring (if applicable)
• Installation instructions

Ideal For:

This billet thermostat housing is ideal for Jeep Grand Cherokee and Dodge Durango owners who demand enhanced cooling system reliability and durability. It is particularly suited for:

• Track enthusiasts and performance drivers
• Owners who tow heavy loads or operate in extreme conditions
• Those upgrading or maintaining their vehicle’s cooling system with high-quality aftermarket parts
• Anyone seeking a long-lasting replacement for the factory plastic thermostat housing

Granatelli Motor Sports develops performance parts for racers and enthusiasts, with a lineup that spans ignition components, exhaust cutouts, boost-control hardware, and billet accessories. The brand is built around practical, track-minded upgrades that help sharpen response and support higher-performance builds across a wide range of platforms.