The All-New Patented Banks Ram-Air Differential Cover Wipes out the competition!

When it comes to product development, we only make products that increase performance and beat the competition. So when we tested the popular Diff Covers on the market, we were shocked to find out that they actually hurt performance. This lead to the development of something so New and Incredible that our performance design has a United States Patent.

Look, when we set out to build a product for your vehicle, we only engineer the best. What else would you expect from a company with a winning legacy that spans decades. We are here to win, and we just did (Again) in a huge way

Fitment Alert: AAM

Sway Bar Spacers (#19249-2) required on Ram Trucks with OEM sway bar.

Banks Ram-Air differential cover extends lubrication life and retains fuel economy. Thanks to its superior fluid and aerodynamics, the Ram-Air Cover out-performs stock and flat-back high-capacity covers and does so with less lubricant. Increased distance between service intervals and less lubricant means you'll save money while extending gear life.

Does not fit 2019+ Ram 6.7L Diesel.
check fitment note below for guide

The Banks Engineering team's goal was to perfect fluid flow and reject BTUs from the fluid as fast as the ring and pinion puts them in. If the fluid flow is impeded in any way, it results in resistance and aeration which reduce fuel economy and creates heat, thereby degrading the fluid and decreasing the lifespan of the gearset.Thanks to its superior fluid and aerodynamics, the Ram-Air Cover out-performs stock and flat-back high-capacity covers and does so with less lubricant. Increased distance between service intervals and less lubricant means you'll save money while extending gear life.

Key Highlights

New patented design features Ram-Air scoops for fastest cooling
- Provides cold high velocity air, overcoming dead air zone behind differential
- Scoops force air up and into massive heat radiation fins
- Engineered to break-away if snagged on an obstacle
Banks cools 5X better than flat-back covers in on-road towing tests over the same road, same weather, operator and vehicle
Cools 118 percent better than flat-backs in 200hp 60mph sustained tests
Dry-mount high-pressure silicone O-ring seal. No messy RTV clean!
Internal fins transfer heat through the cover into the external fins
Clears spare tire heat shield, Panhard bars and other components
Does not sacrifice any ground clearance
Limited Lifetime Warranty

Fluid Dynamics

Axle tube lubricant guides directs lube to bearings w/o overfilling
Cover mates flush with differential housing for smooth fluid flow
Ring gear raceway controls fluid flow to the pinion and bearings
Low fluid aeration means longer fluid life

Technical Specs

Weight: 11.7 lbs
External heat radiation fin count: 24
Internal heat absorption fin count: 26
Dimensions: 14.2 in X 13.3 in X 3.8 in
External heat radiation fin surface area: 533.782 in2
Internal heat absorption fin surface area: 119.882 in2
External heat radiation total surface area: 808.81 in2
Internal heat absorption total surface area: 215.78 in2
Fasteners: 14 x stainless steel M8-1.25 flange hex bolts
Material: A380 aluminum diecast with CNC machined surfaces
Internal Volume: About 4.0 Qts (Check OEM Owners Manual)

Oil service

Magnetic drain plug
Magnetic fill port plug
20 degree angled fill port for easy access
No need to remove cover to change fluid
1/2 in sight glass with contrast screen (visual aid) and Viton seal
Banks recommends Amsoil 75W-90 Severe Gear Synthetic Gear Lube
Fill level depends on model year: (About 4.0Qts Fill To OEM Level)

Banks Ram-Air Differential Cover Kit Natural Aluminum w/Hardware - 19259