Banks Power Sterling 10.25 & 10.5 Rear Ram-Air Differential Cover

Banks Power Sterling 10.25" / 10.5" Rear Ram-Air Differential Cover helps keep your Ford SRW rear axle running cooler by improving both airflow and fluid dynamics. Banks engineered this cover to reject heat as fast as the ring & pinion creates it, reducing aeration and helping extend gear oil life and service intervals.

Unlike flat-back covers, Banks uses Ram-Air scoops that force air through channeled fins, moving heat out of the differential and lowering internal oil temperatures. The cover is built from die-cast A380 aircraft aluminum with a CNC-machined mounting surface and a high-pressure O-ring seal for a precise, leak-free fit—no messy RTV required.

Service is easy: drain and fill without removing the cover. A sight glass with contrast screen lets you monitor fluid level/condition at a glance, and magnetic fill & drain plugs help capture debris.

Features:

• Die-cast A380 aluminum construction
• Ram-Air scoops force air into massive heat-radiation fins
• Improved cooling vs flat-back covers in sustained and towing tests
• Internal fins transfer heat to external fins for faster heat rejection
• Dry-mount high-pressure silicone O-ring seal (no RTV)
• Magnetic drain plug, magnetic fill plug, & stainless hardware included
• 1/8" NPT port for temperature monitoring
• Sight-glass with contrast screen
• Engineered breakaway scoop design

Technical Specs:

• External fins: 23
• Internal fins: 22
• Dimensions: 13.3" x 12.8" x 3.5"
• Internal volume: approx. 3.3–3.6 qts (check OEM owners manual)

Oil Service:

• 20° angled fill port for easy access
• No need to remove cover to change fluid
• Banks recommends 75W-90 severe gear synthetic gear lube

Application Notes:

• 2017+ models must physically confirm axle type on vehicle before ordering.
• Fits Sterling 10.25" and 10.5" 12-bolt axles only.
• Does not fit with rear sway bar.
• Does not fit F-350 DRW.
• Does not fit 2023–2024 High-Output.