Westin R5 M-Series Wheel-To-Wheel Nerf Step Bars

2019–2024 Ram 2500 / Ram 3500

28-534345

Overview:

Enhance your Ram 2500 or 3500 with the Westin R5 M-Series Wheel-To-Wheel Nerf Step Bars, designed to provide superior vehicle access and protection. These step bars feature a wide 5-inch footprint that offers a stable and secure stepping surface for drivers and passengers alike. Engineered and developed in the USA, they deliver both functionality and style, making entry and exit easier while safeguarding your truck’s rocker panels from damage. Ideal for truck owners who demand durability and convenience, the R5 M-Series Nerf Step Bars also include a third step for effortless access to the truck bed cargo area.

Key Features:

The Westin R5 M-Series Nerf Step Bars combine innovative design with practical features to meet the needs of Ram 2500 and 3500 owners:

• Extra-wide 5-inch step area for enhanced footing and safety
• Three oversized, skid-resistant injection molded polymer step pads for secure traction
• Wheel-to-wheel length design providing full cab-to-cab coverage
• Exclusive Westin Isolator Bracket supports the step bar beyond the truck cab, preventing creaking and providing added stability
• Corrosion-resistant, high-grade steel construction for long-lasting durability
• Injection molded bracket covers for a clean, factory-finished appearance
• Modular design reduces shipping costs by eliminating the need for truck freight
• No drilling required for installation—mounts directly to existing rocker panels
• Optional light kit available for end caps (sold separately, part no. 28-51003)
• Protects rocker panels from road debris and potential damage

Construction & Design:

Westin’s R5 M-Series Nerf Step Bars are crafted from premium, corrosion-resistant steel to withstand harsh road conditions and resist rust over time. The modular design not only simplifies shipping but also facilitates easier installation. Injection molded polymer step pads provide excellent grip and durability, while the bracket covers enhance the overall aesthetic with a sleek, factory-quality finish. The standout feature is Westin’s exclusive Isolator Bracket, which supports the step bar past the truck cab, a unique innovation that prevents annoying creaking noises common in competitor designs and ensures long-term structural integrity.

Installation & Fitment:

Installation is straightforward and requires no drilling, as the step bars mount directly to the vehicle’s existing rocker panel mounting points. This ensures a secure fit while preserving the truck’s factory structure. The modular components allow for easier handling during installation and reduce shipping costs. These step bars are specifically engineered to fit the following Ram models and trims from 2019 through 2024:

• Ram 2500 Big Horn, Laramie, Laramie Longhorn (2019–2022), Limited, Limited Longhorn (2021–2024), Lone Star, Special Service (2024), Tradesman
• Ram 3500 Big Horn, Laramie, Laramie Longhorn (2019–2020), Limited, Limited Longhorn (2021–2024), Lone Star (2019–2022), SLT (2019), Special Service (2024), Tradesman

What's Included:

• Westin R5 M-Series Wheel-To-Wheel Nerf Step Bars with 5-inch wide step area
• Three injection molded polymer step pads
• Injection molded bracket covers (included on most applications)
• Exclusive Westin Isolator Bracket and mount kit
• All necessary mounting hardware
• Detailed installation instructions

Ideal For:

The Westin R5 M-Series Nerf Step Bars are perfect for Ram 2500 and 3500 owners who want to improve vehicle accessibility, protect rocker panels, and add a rugged, stylish appearance to their trucks. Whether you use your Ram for work, off-road adventures, or daily driving, these step bars provide a reliable and safe stepping surface while enhancing the overall utility of your vehicle. They are especially beneficial for those who frequently access the truck bed or require extra stability when entering and exiting the cab.

Westin Automotive Products designs and manufactures truck, Jeep, and SUV accessories—steps and running boards, grille guards, bumpers, racks, and other protection and styling upgrades built for real use. It’s a staple for off-road and tow builds where you want rugged function and a tougher stance while keeping vehicle-specific fitment and everyday usability.