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Thumbnail Filmstrip of L5P Duramax CoolRunner Engine Oil Pan Banks 35137-B Images
An engine's oil is its lifeblood, but excessive heat and poor drainage can rapidly degrade its protective qualities. Derived directly from military-grade engine development and rigorous racing research, the Banks Power 35137-B CoolRunner Engine Oil Pan is engineered to maximize the longevity and performance of your 2020-2026 GM 6.6L L5P Duramax. Unlike standard factory pans or traditional sand-cast aftermarket alternatives, the CoolRunner actively extracts destructive heat from the sump where the oil is hottest. By utilizing proprietary thermal dynamics, it maintains proper oil viscosity, lowers aeration, and prevents thermal breakdown and oxidation—even under heavy towing conditions when your engine undergoes maximum stress.
- Advanced Thermal Transfer: Employs Banks' exclusive FlowThru Fins, aligning 15 internal heat-absorbing fins with 19 deep-cut external radiator fins to provide 86.1% more cooling surface area than the stock pan.
- Increased Fluid Capacity: Adds two additional quarts of engine oil capacity to further absorb heat and stabilize operating temperatures, while including a 1/8" NPT port for an auxiliary temperature sensor.
- Optimized Fluid Dynamics: Features a smooth, die-cast internal surface and a engineered anti-cavitation dimple directly beneath the pickup tube to maximize oil flow rate to the pump while reducing windage and aeration.
- Complete, Flush Drainage: Utilizes a downward-facing, face-sealing O-ring drain plug that sits completely flush, eliminating the factory bung design that leaves half a quart of contaminated oil ("liquid sandpaper") behind during changes.
- Precision Die-Cast Construction: Manufactured via high-pressure die-casting for a dense, porosity-free structure with zero risk of the embedded sand contamination common in sand-cast competitor products.
- Military-Grade Sealing Protection: Features a precisely machined OE-style full-length squeeze gap along the inner perimeter to control the RTV liquid gasket, preventing loose strands from breaking off into the sump and clogging the oil pump.
- No Loss of Ground Clearance: Engineered to maximize capacity and surface area without hanging any lower than the factory front cross-member.
The superior design of the CoolRunner ultimately protects your investment by addressing the critical flaws of the factory component. Traditional oil pans utilize an inward-protruding welded bung that acts as a dam, preventing complete drainage and leaving sludge behind to contaminate your fresh oil. By contrast, the CoolRunner flushes completely clean, ensuring the pickup tube empties entirely. From the streamlined internal passageways that eliminate oil return obstructions to the protective squeeze gap that isolates structural RTV sealant, every element of this oil pan works to deliver cleaner, cooler, and longer-lasting motor oil for your Duramax.
Technical Specifications:
- 1/8 NPT Port For Aux Temp Sensor
- External Heat Radiation Fin Count: 19
- Internal Heat Absorption Fin Count: 15
- External Heat Radiation Surface Area: 657 In2
- Internal Heat Absorption Surface Area: 387 In2
- Fasteners: 26 X Stainless Steel M6 Flange Hex Bolts
- Material: A380 Aluminum Diecast With CNC Machined Surfaces
An engine's oil is its lifeblood, but excessive heat and poor drainage can rapidly degrade its protective qualities. Derived directly from military-grade engine development and rigorous racing research, the Banks Power 35137-B CoolRunner Engine Oil Pan is engineered to maximize the longevity and performance of your 2020-2026 GM 6.6L L5P Duramax. Unlike standard factory pans or traditional sand-cast aftermarket alternatives, the CoolRunner actively extracts destructive heat from the sump where the oil is hottest. By utilizing proprietary thermal dynamics, it maintains proper oil viscosity, lowers aeration, and prevents thermal breakdown and oxidation—even under heavy towing conditions when your engine undergoes maximum stress.
Advanced Thermal Transfer: Employs Banks' exclusive FlowThru Fins, aligning 15 internal heat-absorbing fins with 19 deep-cut external radiator fins to provide 86.1% more cooling surface area than the stock pan.
Increased Fluid Capacity: Adds two additional quarts of engine oil capacity to further absorb heat and stabilize operating temperatures, while including a 1/8" NPT port for an auxiliary temperature sensor.
Optimized Fluid Dynamics: Fe[...]
An engine's oil is its lifeblood, but excessive heat and poor drainage can rapidly degrade its protective qualities. Derived directly from military-grade engine development and rigorous racing research, the Banks Power 35137-B CoolRunner Engine Oil Pan is engineered to maximize the longevity and performance of your 2020-2026 GM 6.6L L5P Duramax. Unlike standard factory pans or traditional sand-cast aftermarket alternatives, the CoolRunner actively extracts destructive heat from the sump where the oil is hottest. By utilizing proprietary thermal dynamics, it maintains proper oil viscosity, lowers aeration, and prevents thermal breakdown and oxidation—even under heavy towing conditions when your engine undergoes maximum stress.
- Advanced Thermal Transfer: Employs Banks' exclusive FlowThru Fins, aligning 15 internal heat-absorbing fins with 19 deep-cut external radiator fins to provide 86.1% more cooling surface area than the stock pan.
- Increased Fluid Capacity: Adds two additional quarts of engine oil capacity to further absorb heat and stabilize operating temperatures, while including a 1/8" NPT port for an auxiliary temperature sensor.
- Optimized Fluid Dynamics: Features a smooth, die-cast internal surface and a engineered anti-cavitation dimple directly beneath the pickup tube to maximize oil flow rate to the pump while reducing windage and aeration.
- Complete, Flush Drainage: Utilizes a downward-facing, face-sealing O-ring drain plug that sits completely flush, eliminating the factory bung design that leaves half a quart of contaminated oil ("liquid sandpaper") behind during changes.
- Precision Die-Cast Construction: Manufactured via high-pressure die-casting for a dense, porosity-free structure with zero risk of the embedded sand contamination common in sand-cast competitor products.
- Military-Grade Sealing Protection: Features a precisely machined OE-style full-length squeeze gap along the inner perimeter to control the RTV liquid gasket, preventing loose strands from breaking off into the sump and clogging the oil pump.
- No Loss of Ground Clearance: Engineered to maximize capacity and surface area without hanging any lower than the factory front cross-member.
The superior design of the CoolRunner ultimately protects your investment by addressing the critical flaws of the factory component. Traditional oil pans utilize an inward-protruding welded bung that acts as a dam, preventing complete drainage and leaving sludge behind to contaminate your fresh oil. By contrast, the CoolRunner flushes completely clean, ensuring the pickup tube empties entirely. From the streamlined internal passageways that eliminate oil return obstructions to the protective squeeze gap that isolates structural RTV sealant, every element of this oil pan works to deliver cleaner, cooler, and longer-lasting motor oil for your Duramax.
Technical Specifications:
- 1/8 NPT Port For Aux Temp Sensor
- External Heat Radiation Fin Count: 19
- Internal Heat Absorption Fin Count: 15
- External Heat Radiation Surface Area: 657 In2
- Internal Heat Absorption Surface Area: 387 In2
- Fasteners: 26 X Stainless Steel M6 Flange Hex Bolts
- Material: A380 Aluminum Diecast With CNC Machined Surfaces