PPE Transmission Fluid Thermal Bypass Valve Billet

2016–2018 Jeep Grand Cherokee 3.0L EcoDiesel, 2016–2021 Jeep Grand Cherokee 5.7L Hemi, 2016–2021 Jeep Grand Cherokee 6.4L SRT, 2022–2024 Dodge Durango 6.4L 392, 2023–2025 Dodge Durango 6.2L Hellcat

Part #: 225065200

Overview

The PPE Transmission Fluid Thermal Bypass Valve is a precision-engineered upgrade designed to enhance the cooling efficiency of the ZF 8-speed automatic transmission found in select Dodge Durango and Jeep Grand Cherokee models from 2016 through 2025. This billet aluminum valve replaces the restrictive OEM thermal bypass valve, improving transmission fluid flow to the cooler and reducing the risk of overheating under demanding driving conditions.

Built for both enthusiasts and daily drivers, this valve addresses a common failure point in the factory design where internal passages can clog or fail mechanically, cutting off fluid flow and potentially causing costly transmission damage. By maximizing fluid circulation and incorporating a magnetic service plug to trap ferrous debris, the PPE valve extends transmission life and reliability.

Key Features

The PPE Transmission Fluid Thermal Bypass Valve offers significant advantages over the stock component, ensuring improved transmission performance and durability:

• Direct OEM replacement for the restrictive factory thermal bypass valve (OEM Part # 68291739AA)
• Constructed from high-strength billet aluminum for superior durability and corrosion resistance
• Maximizes transmission fluid flow to the cooler, enhancing heat dissipation and preventing overheating
• Includes a removable service plug equipped with a powerful Neodymium magnet to capture metal debris
• Prevents transmission damage during heavy towing, off-road driving, and stop-and-go traffic
• Easy bolt-on installation with no modifications or tuning required
• Engineered for reliable operation across all driving conditions

Construction & Design

Manufactured from premium billet aluminum, the PPE Thermal Bypass Valve delivers exceptional strength and resistance to corrosion compared to the OEM plastic or stamped metal valve. Its internal flow passages are precision-machined to eliminate the restrictive bottlenecks found in the factory design, allowing unrestricted transmission fluid movement to the cooler for improved thermal management.

The integrated Neodymium magnet in the removable service plug is strategically positioned to attract and hold ferrous particles circulating in the transmission fluid. This feature helps reduce premature wear on transmission components by capturing harmful debris during routine maintenance, contributing to longer transmission life and improved reliability.

Installation & Fitment

The PPE Transmission Fluid Thermal Bypass Valve is a direct OEM replacement designed specifically for the following vehicles equipped with the ZF 8-speed automatic transmission:

• 2016–2018 Jeep Grand Cherokee 3.0L EcoDiesel
• 2016–2021 Jeep Grand Cherokee 5.7L Hemi
• 2016–2021 Jeep Grand Cherokee 6.4L SRT
• 2022–2024 Dodge Durango 6.4L 392
• 2023–2025 Dodge Durango 6.2L Hellcat

Installation is straightforward and requires no special tools or modifications. The valve mounts in the exact location of the factory unit, allowing for a quick upgrade that can be completed in under an hour by a professional technician or experienced DIYer. Because it improves fluid flow and cooling without altering transmission operation, no additional tuning or adjustments are necessary after installation.

What's Included

• Billet aluminum PPE Transmission Fluid Thermal Bypass Valve
• Removable service plug equipped with a Neodymium magnet
• Installation hardware
• Instructions for installation and maintenance

Ideal For

This valve is ideal for Dodge Durango and Jeep Grand Cherokee owners who demand enhanced transmission reliability and longevity. It is especially beneficial for those who tow heavy loads, frequently drive in stop-and-go traffic, or operate their vehicles in hot climates. Additionally, it serves as a smart preventative upgrade to avoid the costly consequences of transmission overheating caused by OEM valve failure.

Pacific Performance Engineering (PPE) develops heavy-duty and performance upgrades for trucks and diesel platforms, including differential covers, transmission pans, oiling and cooling components, and other durability-minded parts. PPE products are built to handle heat, load, and power—ideal for tow rigs and performance builds that need stronger hardware and better fluid control.