King Shocks 2.5 Dia Piggyback Reservoir Shock (REAR)

2014–2018 Ram 2500 5.7L Hemi, 2014–2025 Ram 2500 6.4L 392, 2014–2025 Ram 2500 6.7L Diesel

Part #: 25001-328

Overview

The King Shocks 2.5 Dia Piggyback Reservoir Shock for the rear suspension is a premium OEM performance upgrade designed specifically for Ram 2500 trucks equipped with 5.7L Hemi, 6.4L 392, and 6.7L Diesel engines from model years 2014 through 2025. Engineered to deliver exceptional ride quality and enhanced handling, this shock absorber is custom tuned to meet the unique demands of heavy-duty Ram trucks.

Built for enthusiasts and professionals who require superior control and durability, the King Shocks piggyback reservoir design provides improved heat dissipation and consistent damping performance under extreme conditions. Whether you’re towing, hauling, or navigating rough terrain, this shock is engineered to maintain optimal suspension response and vehicle stability.

Key Features

King Shocks has developed this rear shock with advanced technology and rigorous real-world testing to ensure peak performance and longevity. Key features include:

• 2.5-inch diameter shock body for increased strength and durability
• Piggyback reservoir design to improve fluid cooling and reduce fade
• Custom-tuned damping curve optimized for Ram 2500 suspension dynamics
• High-quality internal valving for precise control over compression and rebound
• Heavy-duty construction suitable for both on-road comfort and off-road performance
• Corrosion-resistant finish to withstand harsh environments
• Designed to maintain factory ride height and suspension geometry
• Compatible with stock springs and suspension components

Construction & Design

King Shocks utilizes aerospace-grade materials and precision engineering in the construction of this piggyback reservoir shock. The shock body is crafted from high-strength aluminum alloy, providing a lightweight yet robust structure that resists bending and damage. The piggyback reservoir increases the oil volume and surface area, allowing for superior heat dissipation during demanding driving conditions.

Internal components are meticulously engineered to deliver consistent damping performance, with advanced valving systems that adapt to varying terrain and load conditions. The shock’s anodized finish protects against corrosion and wear, ensuring long-lasting durability even in harsh weather or off-road environments.

Installation & Fitment

This King Shocks rear piggyback reservoir shock is a direct fit replacement for 2014–2018 Ram 2500 models with the 5.7L Hemi engine, as well as 2014–2025 Ram 2500 trucks equipped with the 6.4L 392 and 6.7L Diesel engines. Installation requires no modifications to the vehicle’s suspension or mounting points, allowing for a straightforward bolt-on upgrade.

Professional installation is recommended to ensure proper torque specifications and alignment. The shock is designed to work seamlessly with factory springs and suspension components, preserving the original ride height and handling characteristics while enhancing overall performance.

What's Included

• One King Shocks 2.5 Dia Piggyback Reservoir Rear Shock
• Mounting hardware as required for direct fit installation
• Installation instructions and warranty information

Ideal For

This shock absorber is ideal for Ram 2500 owners seeking to improve rear suspension performance without sacrificing ride comfort. It is especially suited for those who tow heavy loads, drive off-road, or demand enhanced handling and durability from their truck’s suspension system. Whether used for daily driving, work applications, or recreational off-roading, the King Shocks piggyback reservoir shock delivers reliable, high-quality performance tailored to your Ram 2500.

King Shocks is a premium off-road suspension brand known for rebuildable, tunable shocks and coilover systems designed to survive high-speed, high-impact terrain. Their race-proven damping and heavy-duty construction make King a top pick for desert, trail, and overland builds that demand consistent control and durability.