aFe Pro Series Rear Differential Cover
2019–2020 Ram 2500 / 3500
Part #: 46-71150B
Overview
The aFe Pro Series Rear Differential Cover is a high-performance upgrade designed specifically for 2019 to 2020 Ram 2500 and 3500 trucks equipped with AAM 11.5, 11.8, or 12.0 axles. This premium replacement cover enhances the durability and cooling efficiency of your rear differential, providing superior protection under heavy-duty conditions such as towing, hauling, and off-road driving. By increasing oil capacity and improving heat dissipation, it helps maintain optimal gear lubrication and extends the life of your differential components.
Built for truck owners who demand reliability and longevity from their drivetrain, the aFe Pro Series cover combines rugged construction with advanced thermal management features to keep your Ram’s rear differential running cooler and cleaner in challenging environments.
Key Features
Engineered for enhanced protection and cooling, the aFe Pro Series Rear Differential Cover offers the following benefits:
- Durable cast aluminum construction with a black powder coat finish for corrosion resistance and long-lasting durability
- Precision-machined cooling fins cast directly into the cover to increase surface area and improve heat dissipation
- Increased oil capacity compared to the factory cover, enhancing lubrication and thermal management
- Dual neodymium magnetic drain plugs that capture metal particles, reducing wear and extending gear life
- Large oil level sight glass for quick, accurate fluid level checks without removing the cover or plugs
- Calibration plug set to factory oil level to prevent overfilling and ensure proper fluid volume
- Precision fitment designed specifically for AAM 11.5, 11.8, and 12.0 axles found in Ram 2500 and 3500 trucks
Construction & Design
The aFe Pro Series Rear Differential Cover is crafted from high-quality cast aluminum, chosen for its excellent strength-to-weight ratio and superior thermal conductivity. The black powder coat finish not only delivers a sleek, durable appearance but also protects the cover from corrosion and environmental damage. Integrated machined cooling fins are cast directly into the aluminum body, significantly increasing the surface area to dissipate heat more efficiently than the stock cover.
Attention to detail is evident in the inclusion of dual neodymium magnetic drain plugs, strategically positioned to capture metal debris circulating in the gear oil. This feature helps prevent premature wear of internal components. Additionally, the large sight glass is engineered for durability and ease of use, allowing for quick visual inspection of fluid levels without the need to remove the cover or plugs.
Installation & Fitment
Installation of the aFe Pro Series Rear Differential Cover is straightforward and designed as a direct bolt-on replacement for the factory cover on 2019–2020 Ram 2500 and 3500 trucks with AAM 11.5, 11.8, or 12.0 axles. No modifications or special tools are required, making it accessible for both professional mechanics and experienced DIY enthusiasts. The included calibration plug ensures the correct oil level is maintained, preventing overfilling and potential damage to the differential.
What's Included
- aFe Pro Series Rear Differential Cover with machined cooling fins
- Dual neodymium magnetic drain plugs
- Large oil level sight glass
- Calibration plug set to factory oil level
- Installation hardware
Ideal For
This rear differential cover is ideal for Ram 2500 and 3500 owners who require enhanced durability and improved cooling for their rear differential. It is especially suited for those who frequently tow heavy loads, engage in off-road driving, or operate their trucks in high-temperature environments where differential overheating is a concern. The aFe Pro Series cover helps maintain optimal gear oil temperature and cleanliness, contributing to longer differential service life and improved vehicle reliability.
aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.
aFe Pro Series Rear Differential Cover: Ram Trucks (19-20) w/ Machined Fins
- Unit price
- /per
What does the Available to Promise date mean?
ETA stands for Estimated Time of Arrival. The date shown is calculated using our Available-to-Promise (ATP) system, which tracks real-time supplier commitments to determine when a product is expected to be available for delivery. Specifically, the date is calculated by adding 9 business days from the date a supplier has committed to ship the product, representing a worst-case scenario for when we can expect to receive inventory.
Please note: The ETA is an estimate, not a guarantee. While we work closely with our suppliers to keep dates as accurate as possible, delays due to shipping carriers, weather, customs, or supplier-side issues may occasionally push the actual arrival beyond the date shown. Likewise, inventory may arrive sooner than the ETA in many cases. If you would like to be notified for when this item arrives, sign up for our back in stock notifications!
46-71150B aFe 19-20 Ram 2500 / 3500 Pro Series Rear Diff Cover. Upgrade your Ram’s rear differential with this durable cast aluminum cover featuring machined cooling fins for superior heat dissipation. Designed for 19-20 Ram 2500 and 3500 models with AAM axles, it increases oil capacity and includes dual magnetic drain plugs to capture metal debris, extending gear life. The large sight glass allows easy fluid checks, while the black powder coat finish resists corrosion. Ideal for towing, hauling, and off-road use, this direct bolt-on cover enhances differential protection and performance under demanding conditions.
FREE GROUND SHIPPING
MADE IN THE USA
Adding product to your cart
aFe Pro Series Rear Differential Cover
2019–2020 Ram 2500 / 3500
Part #: 46-71150B
Overview
The aFe Pro Series Rear Differential Cover is a high-performance upgrade designed specifically for 2019 to 2020 Ram 2500 and 3500 trucks equipped with AAM 11.5, 11.8, or 12.0 axles. This premium replacement cover enhances the durability and cooling efficiency of your rear differential, providing superior protection under heavy-duty conditions such as towing, hauling, and off-road driving. By increasing oil capacity and improving heat dissipation, it helps maintain optimal gear lubrication and extends the life of your differential components.
Built for truck owners who demand reliability and longevity from their drivetrain, the aFe Pro Series cover combines rugged construction with advanced thermal management features to keep your Ram’s rear differential running cooler and cleaner in challenging environments.
Key Features
Engineered for enhanced protection and cooling, the aFe Pro Series Rear Differential Cover offers the following benefits:
- Durable cast aluminum construction with a black powder coat finish for corrosion resistance and long-lasting durability
- Precision-machined cooling fins cast directly into the cover to increase surface area and improve heat dissipation
- Increased oil capacity compared to the factory cover, enhancing lubrication and thermal management
- Dual neodymium magnetic drain plugs that capture metal particles, reducing wear and extending gear life
- Large oil level sight glass for quick, accurate fluid level checks without removing the cover or plugs
- Calibration plug set to factory oil level to prevent overfilling and ensure proper fluid volume
- Precision fitment designed specifically for AAM 11.5, 11.8, and 12.0 axles found in Ram 2500 and 3500 trucks
Construction & Design
The aFe Pro Series Rear Differential Cover is crafted from high-quality cast aluminum, chosen for its excellent strength-to-weight ratio and superior thermal conductivity. The black powder coat finish not only delivers a sleek, durable appearance but also protects the cover from corrosion and environmental damage. Integrated machined cooling fins are cast directly into the aluminum body, significantly increasing the surface area to dissipate heat more efficiently than the stock cover.
Attention to detail is evident in the inclusion of dual neodymium magnetic drain plugs, strategically positioned to capture metal debris circulating in the gear oil. This feature helps prevent premature wear of internal components. Additionally, the large sight glass is engineered for durability and ease of use, allowing for quick visual inspection of fluid levels without the need to remove the cover or plugs.
Installation & Fitment
Installation of the aFe Pro Series Rear Differential Cover is straightforward and designed as a direct bolt-on replacement for the factory cover on 2019–2020 Ram 2500 and 3500 trucks with AAM 11.5, 11.8, or 12.0 axles. No modifications or special tools are required, making it accessible for both professional mechanics and experienced DIY enthusiasts. The included calibration plug ensures the correct oil level is maintained, preventing overfilling and potential damage to the differential.
What's Included
- aFe Pro Series Rear Differential Cover with machined cooling fins
- Dual neodymium magnetic drain plugs
- Large oil level sight glass
- Calibration plug set to factory oil level
- Installation hardware
Ideal For
This rear differential cover is ideal for Ram 2500 and 3500 owners who require enhanced durability and improved cooling for their rear differential. It is especially suited for those who frequently tow heavy loads, engage in off-road driving, or operate their trucks in high-temperature environments where differential overheating is a concern. The aFe Pro Series cover helps maintain optimal gear oil temperature and cleanliness, contributing to longer differential service life and improved vehicle reliability.
aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.
-
-
YEARMAKEMODELSUBMODEL2019 - 2026Ram25006.4L 3922019 - 2026Ram25006.7L Diesel2019 - 2026Ram35006.4L 3922019 - 2026Ram35006.7L Diesel
-
Standard shipping
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Standard shipping
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.