CFR Performance Hemi Gen 3 Straight Water Neck Thermostat Housing

2004–2021 Chrysler, Dodge, Jeep, Ram Models with 5.7L, 6.1L, and 6.4L HEMI Engines

Part #: HZ-6150-PBK

Overview

The CFR Performance Aluminum Mopar Hemi Gen 3 Straight Water Neck Thermostat Housing is a high-quality cooling system upgrade tailored for Mopar Gen III HEMI engines. Designed to fit a broad range of Dodge, Jeep, Ram, and Chrysler vehicles from 2004 through 2021, this thermostat housing supports 5.7L, 6.1L, and 6.4L HEMI engines, including popular models such as the Charger, Challenger, 300, Durango, Grand Cherokee, and Ram trucks.

Its straight water neck design simplifies radiator hose routing, making it an ideal solution for custom engine swaps, performance builds, and tight engine bays where flexibility and space are at a premium. The black powder-coated finish not only enhances corrosion resistance but also adds a sleek, professional appearance to your engine compartment.

Whether upgrading your cooling system or fabricating a custom radiator setup, this thermostat housing delivers reliable performance, durability, and a clean look that complements any Mopar Gen III HEMI engine build.

Key Features

Engineered with performance enthusiasts and professional installers in mind, the CFR Performance thermostat housing offers the following benefits:

• Compatible with Mopar Gen III HEMI 5.7L, 6.1L, and 6.4L engines from 2004 to 2021
• Fits a wide range of Dodge, Jeep, Ram, and Chrysler platforms including Charger, Challenger, 300, Durango, Grand Cherokee, and Ram trucks
• Straight-style water neck simplifies radiator hose routing in tight or custom engine bays
• CNC-machined from premium aluminum for strength, lightweight performance, and precise fitment
• Durable black powder-coated finish resists corrosion and enhances engine bay aesthetics
• Designed to fit standard 1-3/4" radiator hoses for easy integration
• Includes two mounting bolts for straightforward, bolt-on installation
• Ideal for custom radiator setups, engine swaps, and performance cooling upgrades

Construction & Design

This thermostat housing is meticulously CNC-machined from high-grade aluminum, ensuring exact dimensions and a perfect fit for Mopar Gen III HEMI engines. Aluminum’s excellent heat dissipation properties help maintain optimal engine temperatures while providing durability to withstand the rigors of performance driving.

The black powder-coated finish offers superior corrosion resistance and a refined, professional look that complements any engine bay. The straight water neck design is thoughtfully engineered to facilitate easier hose routing, especially in custom or confined engine compartments where traditional angled housings may cause clearance issues. This design enhances installation flexibility without sacrificing cooling efficiency.

Installation & Fitment

Installation is simple and secure with the included mounting bolts, allowing for a direct, bolt-on replacement of the factory thermostat housing on Mopar Gen III HEMI engines. This housing is compatible with a wide range of vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI engines, including:

• Chrysler 300 and 300C (5.7L and 6.1L SRT8)
• Dodge Challenger (5.7L, 6.1L SRT8, 6.4L 392)
• Dodge Charger (5.7L, 6.1L SRT8, 6.4L 392)
• Dodge Dakota (5.7L)
• Dodge Durango (5.7L, 6.4L 392)
• Dodge Magnum (5.7L, 6.1L SRT8)
• Jeep Commander (5.7L)
• Jeep Grand Cherokee (5.7L, 6.1L SRT8)
• Ram 1500, 2500, 3500 (5.7L and 6.4L 392)
• Jeep Wagoneer and Wrangler (5.7L)

Before installation, verify radiator hose size and thermostat clearance, especially in custom or swap applications where modifications may be necessary.

What's Included

• (1) Black Aluminum Straight Thermostat Housing
• (2) Mounting Bolts

Ideal For

• Performance enthusiasts upgrading cooling systems on Mopar Gen III HEMI engines
• Custom engine swap projects requiring flexible and simplified hose routing
• Restorations and repairs needing a durable, corrosion-resistant thermostat housing
• Anyone seeking a clean, professional engine bay appearance with a black powder-coated finish