BD Diesel Diff Cover w/ RCS

2013–2018 Ram 2500 / 3500 5.7L Hemi, 6.7L Diesel, 6.4L 392

Part #: 1061825-RCS

Overview

The BD Diesel Differential Cover with Rotating Circulation System (RCS) is engineered specifically for Ram 2500 and 3500 models from 2013 to 2018, equipped with 5.7L Hemi, 6.7L Diesel, or 6.4L 392 engines. This premium differential cover enhances the durability and longevity of your truck’s rear differential by improving oil circulation and cooling. Unlike conventional covers that can cause oil to be flung off the ring gear, BD Diesel’s innovative design directs lubricating oil back onto the ring gear and pinion gear, reducing heat buildup and wear.

Ideal for diesel and gas-powered Ram trucks used in heavy-duty applications, towing, or off-road conditions, this diff cover offers superior protection and performance to keep your drivetrain running cooler and more efficiently.

Key Features

BD Diesel’s diff cover with RCS incorporates advanced engineering to optimize differential lubrication and cooling. Key features include:

• Rotating Circulation System (RCS) that deflects oil back onto ring and pinion gears for improved lubrication
• Reduces heat buildup inside the differential housing, extending gear and bearing life
• Precision-machined to fit 2013–2018 Ram 2500 and 3500 models with 5.7L Hemi, 6.7L Diesel, and 6.4L 392 engines
• Heavy-duty construction designed to withstand harsh off-road and towing conditions
• Compact design avoids the bulkiness of other covers that can fling oil away from critical components
• Improves overall drivetrain reliability and reduces maintenance intervals
• Corrosion-resistant finish for long-lasting durability
• Direct bolt-on installation with no modifications required

Construction & Design

The BD Diesel diff cover is crafted from high-strength steel or billet aluminum (depending on specific model) to provide rugged protection against impacts and debris. Its design focuses on efficient oil management inside the differential housing, utilizing the RCS to channel lubricating oil precisely where it’s needed most. This targeted oil flow keeps the ring and pinion gears cooler and better lubricated, reducing friction and wear over time.

The cover’s compact profile minimizes oil slinging, a common issue with larger, bulkier aftermarket covers. This thoughtful engineering ensures that the differential fluid remains in contact with critical components, enhancing cooling and extending the life of your drivetrain.

Installation & Fitment

Installation of the BD Diesel Diff Cover with RCS is straightforward and designed for a direct bolt-on fit for Ram 2500 and 3500 trucks from 2013 through 2018 with 5.7L Hemi, 6.7L Diesel, and 6.4L 392 engines. No special tools or modifications are required, making it an ideal upgrade for both professional mechanics and experienced DIY enthusiasts. The cover includes all necessary hardware and seals to ensure a leak-free installation.

What's Included

• BD Diesel Differential Cover with RCS
• Mounting hardware
• Gasket or sealant (as applicable)
• Installation instructions

Ideal For

This differential cover is perfect for Ram 2500 and 3500 owners who demand enhanced durability and performance from their drivetrain. It is especially suited for those who tow heavy loads, engage in off-road driving, or operate their trucks in demanding conditions where differential heat and wear are concerns. The BD Diesel Diff Cover with RCS helps maintain optimal gear lubrication and temperature, reducing the risk of costly repairs and downtime.

BD Diesel Performance designs and manufactures diesel performance parts aimed at stronger power delivery, improved reliability, and heavy-duty capability. Their lineup spans turbo and fueling upgrades, manifolds, intercoolers, and other supporting components—built for Cummins, Power Stroke, and Duramax owners who want more torque for towing, work, or competition.