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Banks CoolRunner Engine Oil Pan (35137-B) – 2020-2026 L5P Duramax
Heat kills motor oil. That’s why Banks engineered the CoolRunner™ Oil Pan using technology from its military engine program.
The Banks 35137-B CoolRunner Oil Pan is the ultimate upgrade for 2020-2026 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L L5P Duramax. It rejects more heat, reduces aeration, and maintains proper oil viscosity far better than the stock pan or any aftermarket competitor.
With 19 deep external radiator fins and 15 internal heat-absorption fins (FlowThru Fins™ design), the CoolRunner provides 86.1% more cooling surface area than stock. The die-cast A380 aluminum construction with CNC-machined surfaces creates a smoother interior for better oil flow, while the precision full-length squeeze gap sealing surface prevents RTV strands from breaking off and contaminating your engine.
Key Benefits:
- Extends oil life by keeping oil cooler and reducing aeration
- Adds 2 extra quarts of oil capacity
- Allows complete oil drainage during changes (stock pans leave behind nearly ½ quart of dirty oil/sludge)
- Improves oil flow to the pickup tube with an anti-cavitation dimple
- Maintains factory ground clearance — does not hang lower than the front crossmember
- Works with AEV skid plates and AT4 skid plate packages
Technical Specifications
- Material: A380 aluminum die-cast with CNC-machined surfaces
- Finish: Black powder coat
- External fins: 19 deep-cut radiator fins
- Internal fins: 15 heat-absorption fins
- External cooling surface area: 657 in²
- Internal cooling surface area: 387 in²
- Additional oil capacity: +2.0 quarts
- Auxiliary sensor port: 1/8" NPT
- Drain plug: High-temperature resistant ferrite magnetic drain plug
- Fasteners: 26 stainless steel M6 flange hex bolts
- Total oil capacity (approx.): 13 quarts (verify with OEM manual)
Fitment
- 2020–2026 Chevrolet Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD
- Engine: 6.6L L5P Duramax Diesel
- Note for lifted trucks: May require removal of front differential drop brackets for installation. Measure clearance before ordering.
What’s Included
- Banks CoolRunner Oil Pan (black powder coat)
- 26 stainless steel M6 flange hex bolts
- High-temp ferrite magnetic drain plug
- RTV sealant + caulking gun
- Installation hardware and instructions
Installation time: Approximately 6 hours. Full installation video and instructions available on the Banks website.
This is a direct-fit, high-quality upgrade that addresses the factory pan’s shortcomings in heat management, drainage, and oil capacity — ideal for daily driving, towing, or performance applications.
Banks CoolRunner Engine Oil Pan (35137-B) – 2020-2026 L5P Duramax
Heat kills motor oil. That’s why Banks engineered the CoolRunner™ Oil Pan using technology from its military engine program.
The Banks 35137-B CoolRunner Oil Pan is the ultimate upgrade for 2020-2026 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L L5P Duramax. It rejects more heat, reduces aeration, and maintains proper oil viscosity far better than the stock pan or any aftermarket competitor.
With 19 deep external radiator fins and 15 internal heat-absorption fins (FlowThru Fins™ design), the CoolRunner provides 86.1% more cooling surface area than stock. The die-cast A380 aluminum construction with CNC-machined surfaces creates a smoother interior for better oil flow, while the precision full-length squeeze gap sealing surface prevents RTV strands from breaking off and contaminating your engine.
Key Benefits:
Extends oil life by keeping oil cooler and reducing aeration
Adds 2 extra quarts of oil capacity
Allows complete oil drainage during changes (stock pans leave behind nearly ½ quart of dirty oil/sludge)
Improves oil flow to the pickup tub[...]
Banks CoolRunner Engine Oil Pan (35137-B) – 2020-2026 L5P Duramax
Heat kills motor oil. That’s why Banks engineered the CoolRunner™ Oil Pan using technology from its military engine program.
The Banks 35137-B CoolRunner Oil Pan is the ultimate upgrade for 2020-2026 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L L5P Duramax. It rejects more heat, reduces aeration, and maintains proper oil viscosity far better than the stock pan or any aftermarket competitor.
With 19 deep external radiator fins and 15 internal heat-absorption fins (FlowThru Fins™ design), the CoolRunner provides 86.1% more cooling surface area than stock. The die-cast A380 aluminum construction with CNC-machined surfaces creates a smoother interior for better oil flow, while the precision full-length squeeze gap sealing surface prevents RTV strands from breaking off and contaminating your engine.
Key Benefits:
- Extends oil life by keeping oil cooler and reducing aeration
- Adds 2 extra quarts of oil capacity
- Allows complete oil drainage during changes (stock pans leave behind nearly ½ quart of dirty oil/sludge)
- Improves oil flow to the pickup tube with an anti-cavitation dimple
- Maintains factory ground clearance — does not hang lower than the front crossmember
- Works with AEV skid plates and AT4 skid plate packages
Technical Specifications
- Material: A380 aluminum die-cast with CNC-machined surfaces
- Finish: Black powder coat
- External fins: 19 deep-cut radiator fins
- Internal fins: 15 heat-absorption fins
- External cooling surface area: 657 in²
- Internal cooling surface area: 387 in²
- Additional oil capacity: +2.0 quarts
- Auxiliary sensor port: 1/8" NPT
- Drain plug: High-temperature resistant ferrite magnetic drain plug
- Fasteners: 26 stainless steel M6 flange hex bolts
- Total oil capacity (approx.): 13 quarts (verify with OEM manual)
Fitment
- 2020–2026 Chevrolet Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD
- Engine: 6.6L L5P Duramax Diesel
- Note for lifted trucks: May require removal of front differential drop brackets for installation. Measure clearance before ordering.
What’s Included
- Banks CoolRunner Oil Pan (black powder coat)
- 26 stainless steel M6 flange hex bolts
- High-temp ferrite magnetic drain plug
- RTV sealant + caulking gun
- Installation hardware and instructions
Installation time: Approximately 6 hours. Full installation video and instructions available on the Banks website.
This is a direct-fit, high-quality upgrade that addresses the factory pan’s shortcomings in heat management, drainage, and oil capacity — ideal for daily driving, towing, or performance applications.