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Thumbnail Filmstrip of L5P Duramax Ram-Air Transmission Pan Banks 35148-B Images
The Banks Power 35148-B Ram-Air Transmission Pan is a masterclass in thermal management, specifically engineered for the 2020-2026 L5P Duramax 10L1000 transmission. While standard deep-sump pans rely solely on increased fluid volume to delay overheating, the Ram-Air system utilizes active heat dissipation. By leveraging decades of racing and military-grade engineering, Banks has developed a die-cast solution that treats your transmission pan as a functional radiator. The system captures the high-velocity air moving beneath your GM 2500HD/3500HD and forces it through precision-engineered fins, effectively lowering operating temperatures and extending the life of your Allison transmission’s vital lubricants.
- Advanced Thermal Transfer: Features 20 internal heat-absorption fins and 22 deep-cut external radiator fins, providing 134% more cooling surface area than the factory pan.
- Active Air Induction: Includes a patented forward-facing Ram-Air scoop that funnels cool air through external fins, a feature entirely absent from stagnant competitor designs.
- Expanded Capacity: Increases fluid volume by 3 additional quarts without sacrificing ground clearance or structural safety.
- Precision Die-Cast Construction: Unlike porous and abrasive sand-cast alternatives, this die-cast pan offers a smoother interior for improved flow and zero risk of sand-particle contamination.
- Intelligent Safety Features: The front scoop is designed as a sacrificial "break-away" component to prevent pan damage during impact; Banks offers a free replacement scoop if it is ever deployed.
- Optimized Fluid Dynamics: Internal geometry is meticulously aligned to support full fluid drainage and reduce aeration, ensuring your 10-speed remains lubricated with high-density, air-free oil.
- Integrated Utility: Equipped with a 1/8" NPT port for supplemental temperature sensors, an OE-style fluid level check plug, and a 90-degree angled fill port to eliminate spillage.
The distinction between the Banks Ram-Air and traditional aftermarket pans lies in the science of fluid dynamics. While competitors often use haphazard fin patterns that ignore airflow logic, Banks utilizes "FlowThru" technology to align internal absorption elements directly with external radiator fins. This creates a highly efficient thermal bridge, drawing heat out of the Allison’s lubrication system and rejecting it into the atmosphere. Every detail, from the integrated anti-slosh baffles to the stainless steel face-sealing plugs, reflects a commitment to longevity and mechanical integrity. Choosing the Banks Ram-Air Pan is an investment in preventative maintenance, ensuring your Duramax remains cool under the heavy towing demands of the modern job site or the open road.
Technical Specifications:
- 1/8 NPT Port For Aux Temp Sensor
- External Heat Radiation Fin Count: 22
- Internal Heat Absorption Fin Count: 20
- External Heat Radiation Surface Area: 1005 In2
- Internal Heat Absorption Surface Area: 835 In2
- Fasteners: 16 X Stainless Steel M6 Flange Hex Bolts
- Material: A380 Aluminum Diecast With CNC Machined Surfaces
Oil Service:
- Fully Drains Oil Pickup Tube For Quicker Oil Changes
- High-Temperature Resistant Ferrite Magnetic Drain Plug
- Adds 3.0 Quarts Additional Capacity (Check OEM Owner's Manual)
The Banks Power 35148-B Ram-Air Transmission Pan is a masterclass in thermal management, specifically engineered for the 2020-2026 L5P Duramax 10L1000 transmission. While standard deep-sump pans rely solely on increased fluid volume to delay overheating, the Ram-Air system utilizes active heat dissipation. By leveraging decades of racing and military-grade engineering, Banks has developed a die-cast solution that treats your transmission pan as a functional radiator. The system captures the high-velocity air moving beneath your GM 2500HD/3500HD and forces it through precision-engineered fins, effectively lowering operating temperatures and extending the life of your Allison transmission’s vital lubricants.
Advanced Thermal Transfer: Features 20 internal heat-absorption fins and 22 deep-cut external radiator fins, providing 134% more cooling surface area than the factory pan.
Active Air Induction: Includes a patented forward-facing Ram-Air scoop that funnels cool air through external fins, a feature entirely absent from stagnant competitor designs.
Expanded Capacity: Increases fluid volume by 3 additional quarts without sacrificing ground clearance or structural s[...]
The Banks Power 35148-B Ram-Air Transmission Pan is a masterclass in thermal management, specifically engineered for the 2020-2026 L5P Duramax 10L1000 transmission. While standard deep-sump pans rely solely on increased fluid volume to delay overheating, the Ram-Air system utilizes active heat dissipation. By leveraging decades of racing and military-grade engineering, Banks has developed a die-cast solution that treats your transmission pan as a functional radiator. The system captures the high-velocity air moving beneath your GM 2500HD/3500HD and forces it through precision-engineered fins, effectively lowering operating temperatures and extending the life of your Allison transmission’s vital lubricants.
- Advanced Thermal Transfer: Features 20 internal heat-absorption fins and 22 deep-cut external radiator fins, providing 134% more cooling surface area than the factory pan.
- Active Air Induction: Includes a patented forward-facing Ram-Air scoop that funnels cool air through external fins, a feature entirely absent from stagnant competitor designs.
- Expanded Capacity: Increases fluid volume by 3 additional quarts without sacrificing ground clearance or structural safety.
- Precision Die-Cast Construction: Unlike porous and abrasive sand-cast alternatives, this die-cast pan offers a smoother interior for improved flow and zero risk of sand-particle contamination.
- Intelligent Safety Features: The front scoop is designed as a sacrificial "break-away" component to prevent pan damage during impact; Banks offers a free replacement scoop if it is ever deployed.
- Optimized Fluid Dynamics: Internal geometry is meticulously aligned to support full fluid drainage and reduce aeration, ensuring your 10-speed remains lubricated with high-density, air-free oil.
- Integrated Utility: Equipped with a 1/8" NPT port for supplemental temperature sensors, an OE-style fluid level check plug, and a 90-degree angled fill port to eliminate spillage.
The distinction between the Banks Ram-Air and traditional aftermarket pans lies in the science of fluid dynamics. While competitors often use haphazard fin patterns that ignore airflow logic, Banks utilizes "FlowThru" technology to align internal absorption elements directly with external radiator fins. This creates a highly efficient thermal bridge, drawing heat out of the Allison’s lubrication system and rejecting it into the atmosphere. Every detail, from the integrated anti-slosh baffles to the stainless steel face-sealing plugs, reflects a commitment to longevity and mechanical integrity. Choosing the Banks Ram-Air Pan is an investment in preventative maintenance, ensuring your Duramax remains cool under the heavy towing demands of the modern job site or the open road.
Technical Specifications:
- 1/8 NPT Port For Aux Temp Sensor
- External Heat Radiation Fin Count: 22
- Internal Heat Absorption Fin Count: 20
- External Heat Radiation Surface Area: 1005 In2
- Internal Heat Absorption Surface Area: 835 In2
- Fasteners: 16 X Stainless Steel M6 Flange Hex Bolts
- Material: A380 Aluminum Diecast With CNC Machined Surfaces
Oil Service:
- Fully Drains Oil Pickup Tube For Quicker Oil Changes
- High-Temperature Resistant Ferrite Magnetic Drain Plug
- Adds 3.0 Quarts Additional Capacity (Check OEM Owner's Manual)