FOX 2.5 Performance Series IFP HTO Shock

2014–2025 Ram 2500 / 3500 6.7L Diesel, 6.4L 392, and 2014–2018 Ram 2500 / 3500 5.7L Hemi

Part #: 987-24-048

Overview

The FOX 2.5 Performance Series IFP HTO Shock is engineered to elevate the suspension performance of your Ram 2500 or 3500, delivering a perfect balance between on-road comfort and off-road capability. Designed specifically for lifted trucks with 4 to 6 inches of suspension lift, this front shock absorber integrates FOX’s race-proven damping technology to handle the rigors of heavy-duty use and challenging terrain.

Ideal for Ram owners who demand superior ride quality without sacrificing control, these shocks provide consistent performance whether you’re cruising highways or tackling rugged trails. The internal floating piston (IFP) design ensures smooth damping response, reducing fade and heat buildup during extended use.

Key Features

Built with advanced technology and precision engineering, the FOX 2.5 Performance Series IFP HTO Shock offers the following key benefits:

• Race-proven internal floating piston (IFP) design for consistent damping and reduced shock fade
• High-temperature oil (HTO) formulation to maintain performance under extreme conditions
• Optimized for 4 to 6 inches of suspension lift on Ram 2500 and 3500 models
• Durable construction designed to withstand harsh off-road environments
• Improved on-road ride comfort with predictable off-road handling
• Precision valving tuned specifically for heavy-duty Ram trucks with diesel and Hemi engines
• Corrosion-resistant finish for long-lasting durability
• Direct bolt-on fitment for 2014–2025 Ram 2500 and 3500 with 6.7L diesel and 6.4L 392 engines, plus 2014–2018 Ram 2500 and 3500 with 5.7L Hemi engines

Construction & Design

The FOX 2.5 Performance Series shock features a robust design built to endure the demands of lifted heavy-duty trucks. Its 2.5-inch diameter body is constructed from high-strength materials that resist wear and corrosion, ensuring long service life. The internal floating piston separates the oil and nitrogen gas chambers, preventing aeration and maintaining consistent damping performance even under intense heat and stress.

FOX utilizes a high-temperature oil formula that resists breakdown, allowing the shock to perform reliably during extended off-road excursions or heavy towing. The shock shaft is precision ground and coated to reduce friction and enhance durability, while the external finish protects against environmental damage.

Installation & Fitment

Designed as a direct replacement for the front shocks on lifted Ram 2500 and 3500 trucks, installation is straightforward with no modifications required. These shocks are engineered to fit trucks lifted 4 to 6 inches, maintaining proper suspension geometry and ride height. Professional installation is recommended to ensure optimal performance and safety.

What's Included

• One FOX 2.5 Performance Series IFP HTO front shock absorber
• All necessary mounting hardware
• Installation instructions

Ideal For

This FOX shock is perfect for Ram 2500 and 3500 owners who have lifted their trucks between 4 and 6 inches and seek enhanced suspension performance. Whether you use your truck for heavy towing, off-road adventures, or daily driving, these shocks provide improved ride quality, handling, and durability. They are especially suited for diesel-powered models with 6.7L engines, 6.4L 392 HEMI variants, and earlier 5.7L HEMI trucks from 2014 to 2018.

FOX (RideFOX) is a top-tier suspension brand producing high-performance shocks and components for trucks, UTVs, and motorsports applications. Known for race-proven engineering and tunability, FOX products are built to handle harsh impacts, high speeds, and demanding off-road conditions while keeping the vehicle controlled and composed.