PPE Performance Silicone Coolant Hose Kit

2015–2018 Ram 2500 / 3500 6.7L Diesel

Part #: 219031518

Overview

The PPE Performance Silicone Upper and Lower Coolant Hose Kit is a premium cooling system upgrade engineered specifically for the 2015 to 2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. This kit replaces the factory rubber coolant hoses with high-quality silicone hoses that deliver enhanced durability, heat resistance, and reliability under demanding conditions.

Designed for both daily drivers and heavy-duty users, this kit ensures consistent coolant flow and system integrity, reducing the risk of hose failure due to cracking, swelling, or chemical degradation. It offers a direct bolt-on installation with no modifications required, making it an ideal upgrade for enthusiasts and professionals seeking improved performance and engine bay aesthetics.

Key Features

Built to meet the rigorous demands of diesel engine cooling systems, the PPE Performance Silicone Coolant Hose Kit includes:

• Constructed from 5mm-thick, 4-ply heat-resistant silicone rubber for superior durability and longevity
• Direct bolt-on replacement hoses designed specifically for 2015–2018 Ram 6.7L Cummins engines, requiring no cutting or trimming
• Includes specialty worm drive clamps with W-style inner liners that provide 360-degree clamping force to prevent leaks
• Clamps made from high-quality stainless steel to resist corrosion, moisture, and chemical exposure
• Improved heat tolerance compared to OEM rubber hoses, minimizing risk of cracking or swelling under extreme temperatures
• Enhanced flexibility and vibration resistance to withstand harsh under-hood environments and engine movement
• Precision engineered to maintain proper coolant flow and system pressure for optimal engine cooling performance
• Attractive finish that enhances the appearance of the engine bay

Construction & Design

The hoses in this kit are crafted from premium 4-ply silicone rubber with a thickness of 5mm, providing excellent resistance to heat, pressure, and chemical degradation commonly encountered in diesel cooling systems. This multi-layer construction ensures the hoses remain flexible across a wide temperature range, preventing brittleness and cracking that often affect standard rubber hoses over time.

The included worm drive clamps feature a unique W-style inner liner that evenly distributes clamping force around the hose circumference, ensuring a secure, leak-free seal. Manufactured from corrosion-resistant stainless steel, these clamps maintain their strength and reliability even in moist or chemically aggressive environments, contributing to the overall longevity of the cooling system upgrade.

Installation & Fitment

Installation is straightforward and designed as a direct replacement for the factory upper and lower coolant hoses on Ram 2500 and 3500 trucks with the 6.7L Cummins engine from 2015 through 2018. No cutting, trimming, or additional modifications are necessary. Simply remove the OEM hoses and clamps, then install the PPE silicone hoses using the supplied stainless steel clamps for a secure and professional fit. This user-friendly process makes the kit suitable for both professional mechanics and DIY enthusiasts.

What's Included

• Upper silicone coolant hose
• Lower silicone coolant hose
• Specialty stainless steel worm drive clamps with W-style inner liners
• Installation instructions

Ideal For

This coolant hose kit is ideal for Ram 2500 and 3500 owners with the 6.7L Cummins diesel engine who want a reliable, long-lasting upgrade to their cooling system. It is especially beneficial for those who tow heavy loads, engage in off-roading, or operate their trucks in demanding work environments. Additionally, it appeals to enthusiasts seeking to improve engine bay aesthetics while enhancing component durability and overall cooling system performance.

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.