aFe POWER Differential Cover Dana M220 - 2021+ Ford Bronco 2.3L/2.7L | 46-71350B
aFe POWER Differential Cover Dana M220 - 2021+ Ford Bronco 2.3L/2.7L | 46-71350B
Overview
The aFe POWER Differential Cover (Part #46-71350B) is a heavy-duty replacement diff cover designed specifically for the Dana M220 rear axle on 2021–2026 Ford Bronco models equipped with the 2.3L turbocharged four-cylinder or 2.7L V6 twin turbocharged engine. Built for overlanders, off-road enthusiasts, and daily drivers who demand more from their Wrangler, this diff cover delivers superior thermal management and durability far beyond the factory stamped-steel unit. Upgrading to the aFe diff cover is one of the smartest drivetrain investments you can make to protect your axle and extend differential fluid life on and off the trail.
Key Features & Benefits
- Increased Fluid Capacity – Holds more differential fluid than the OEM cover, reducing operating temperatures and extending fluid and gear life during intense wheeling or towing sessions.
- Heavy-Duty Cast Aluminum Construction – Precision-cast aluminum housing dissipates heat up to 40% more efficiently than stamped steel, keeping your Dana M220 axle running cooler under load.
- Integrated Fins & Ribbing – External cooling fins dramatically increase surface area for maximum heat dissipation, critical during rock crawling, trail riding, or highway towing.
- Reinforced Bolt Flange – Thicker, machined mating surface ensures a leak-free seal every time, eliminating the flex and warping common with OEM thin-steel covers.
- Drain Plug Included – Convenient magnetic drain plug captures ferrous wear particles and makes fluid changes clean and tool-friendly — no more draining by removing the entire cover.
- Black Powder Coat Finish – Durable semi-gloss black finish resists corrosion, UV degradation, and trail debris for a lasting, aggressive appearance under your rig.
- Direct Bolt-On Fitment – Engineered as a direct OEM replacement for the Dana M220 axle; no drilling, cutting, or modification required for a professional-grade install.
- CARB Compliant – Meets California Air Resources Board (CARB) standards, making it street-legal in all 50 states including California.
What's Included
- 1x aFe POWER Cast Aluminum Differential Cover (Black Finish)
- 1x Magnetic Drain Plug
- 1x Gasket / Sealing Hardware
- All Required Mounting Hardware
- Installation Instructions
Specifications
| Manufacturer Part # | 46-71350B |
|---|---|
| Brand | aFe POWER |
| Finish | Black Powder Coat |
| Material | Cast Aluminum |
| Axle Compatibility | Dana M220 Rear Axle |
| Increased Fluid Capacity | Yes (over OEM) |
| Drain Plug | Yes – Magnetic |
| CARB Compliant | Yes – 50-State Legal |
| SKU | afe46-71350B |
| Category | Drivetrain – Differential Covers |
Fitment & Compatibility
This aFe differential cover is a direct-fit replacement for the following applications:
- 2021–2026 Ford Bronco – 2.3L Turbo – Dana M220 Rear Axle
- 2021–2026 Ford Bronco – 2.7L V6 Twin Turbo – Dana M220 Rear Axle
Note: Verify your axle code (Dana M220) before purchasing. This cover is designed for the rear differential only. Not compatible with Dana 44 or other axle configurations. Always confirm fitment using your VIN or door jamb axle tag.
Installation
The aFe POWER 46-71350B differential cover is a straightforward bolt-on upgrade requiring no fabrication or modification. Installation involves draining the existing differential fluid, removing the OEM cover, cleaning the axle housing mating surface, installing the new aFe cover with the supplied gasket and hardware, and refilling with the appropriate differential fluid (fluid not included). Most experienced DIY installers complete this job in under two hours with basic hand tools. Professional installation is recommended if you are unfamiliar with differential service procedures. Always torque fasteners to OEM specifications and refill with the manufacturer-recommended gear oil for the Dana M220 axle.
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You may cancel your order if it has not shipped. Please reach out to us promptly with your full name, order number, reason for cancellation, and the specific items you wish to cancel. Please note that cancellations are subject to a 10% fee based on the original purchase price. This fee covers expenses incurred from our vendors and credit card processors, reflecting the costs associated with processing your initial transaction.
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We offer a 30 days returns policy (from date of when order was placed). If your item arrives damaged or is found to be defective, please contact our customer service immediately and do not install the product. Please take photos of the box and the defective product and do not throw anything away. We are committed to resolving this for you promptly. For all other orders, please note that a restocking fee and shipping charges will apply. International orders are unable to be returned.
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Buckle Up Off-Road branded products come with a 60-day limited manufacturing warranty against defects in materials and workmanship. If a product is found to be defective within 60 days of purchase, we will, at our discretion, repair, replace, or issue an in-store credit of the item. This warranty does not cover normal wear and tear, misuse, abuse, improper installation, accidents, modifications, neglect, or damage from exposure to harsh conditions. The warranty is non-transferable and applies only to the original purchaser.
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Please visit the brand's website for their warranty terms. We are not responsible for other brands' warranties or their issuance. While we can assist in facilitating communication between the brand and the consumer, it is best to contact the manufacturer directly regarding any issues.
Many products are designed for off-road use, and it is the customer’s responsibility to understand and comply with local laws regarding aftermarket accessories. Professional installation is strongly recommended for all products. All performance modifications and installations are performed at the customer’s own risk. Buckle Up Off-Road assumes no liability, whether expressed or implied, for any mechanical, electrical, or other failures that may occur from using aftermarket performance products. By purchasing these products, the customer accepts full responsibility for their use and/or misuse and agrees that Buckle Up Off-Road is not liable for any resulting consequences, legal or otherwise.
California Proposition 65 Warning
⚠️ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer, and or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
