BANKS POWER RAM-AIR TRANSMISSION PAN 35146-B | 2001-2019 Duramax 6.6L LB7/LLY/LBZ/LMM/LML/L5P

The Banks Ram-Air Transmission Pan helps extend transmission fluid life in your Chevy Silverado or GMC Sierra 2500HD/3500HD with 6.6L Duramax (LB7/LLY/LBZ/LMM/LML/L5P). Using Banks’ Ram-Air cooling technology, this pan dissipates more heat than factory or competitor pans. Features include a break-away Ram-Air scoop, an additional 2 quarts of capacity, and Banks FlowThru Fins to help cool the fluid for longer-lasting transmission performance.

Engineered to Run Cool

The forward-facing scoop channels ambient air through external FlowThru Fins for maximum heat transfer. The pan includes 2 extra quarts of fluid capacity. The plastic scoop is designed to break away without damaging the pan, and Banks will replace it free of charge if needed. Optional Deep Pan adds ~3 quarts of fluid capacity for enhanced cooling.

Banks vs Competition

Die-cast construction ensures smooth, low-porosity surfaces for optimal fluid flow. The FlowThru Fins maximize heat rejection while internal fins absorb heat efficiently. The Ram-Air scoop further directs cold air across the die-cast fins, outperforming competitors’ designs.

Features:

• Allows full fluid drainage
• Adds 2 additional quarts of fluid capacity
• 141% more cooling surface area than stock
• 72% more heat absorption surface area than stock
• Break-away Ram-Air scoop design prevents pan damage
• 1/8" NPT port for supplemental temperature sensor
• FlowThru fins efficiently transfer heat from oil to the cover's exterior
• Engineered for highest heat rejection, improved oil flow, and full oil drainage
• 18 internal fins absorb more heat than standard pans
• Integrated support structure for internal filter acts as anti-slosh baffles
• Die-cast construction provides smoother, less porous interior
• 24 deep-cut external radiator fins provide maximum airflow

Fluid Dynamics & Specs:

• Lower aeration means longer fluid life
• Downward-facing port eases oil change process
• Internal cooling fins run inline with drain port for streamlined flow
• 1/8" NPT port for auxiliary temp sensor
• External heat radiation fin count: 24
• Internal heat absorption fin count: 18
• External heat radiation surface area: 833 in²
• Internal heat absorption surface area: 505 in²
• Fasteners: 12 x stainless steel M6 flange hex bolts
• Material: A380 die-cast aluminum with CNC machined surfaces