Ram Air Differential Cover
The Banks Ram-Air Differential Cover is a game-changer in the cover industry.
They took the extra mile when designing the 19269 Ram Air Cover by testing all the flat-back covers on the market to determine where they were falling short and how Banks could improve the design.
This is what they came up with, the new Ram Air Differential Cover cools 5 Times Better than flat-backs.
In-fact, they found that other flat-back differential covers didn’t cool as well as advertised and suffer from poor fluid dynamics and as a result actually reduce your fuel economy and efficiency.
Our patented Ram-Air scoops are designed to increase airflow over the rear differential without sacrificing ground clearance.
In fact, our differential cover retains the same low point as factory and competitors.
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% 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° 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)









