Banks CoolRunner Oil Pan utilizes technology from our military engine program to extend oil life. The system rejects more heat and reduces aeration better than stock and all competitors. Two additional quarts of oil and Banks FlowThru Fins® aid in cooling. Unlike stock, the CoolRunner allows all fluid to drain during oil changes.
The Banks CoolRunner Oil Pan for the 2017-2019 Duramax out-performs and out-cools the competition by leveraging decades of racing and military engine development.
• 19 deep-cut huge external radiator fins provide more surface area to the cool air moving under the truck.
• The die-cast process provides a smoother interior surface which improves oil flow to the pickup tube and drain.
• A smooth, streamlined area around the oil pickup with an engineered anti-cavitation dimple improves oil flow to the pump by reducing restriction at the filter inlet.
• 15 internal fins absorb more heat from the oil than a stock or any other aftermarket pan.
Banks proprietary FlowThru Fins® maximize thermal energy transfer by lining up the internal and external features with each other.
Engine heat is efficiently drawn from the sump where the hottest oil rests. Cooler oil retains the proper viscosity, which means metal-on-metal surfaces remain properly lubricated.
With more internal heat absorption surface area and more external heat radiation surface area, your motor oil stays within its optimum operating temperature, which prevents oxidation or breakdown even when hauling up a grade.
The CoolRunner oil pan features a 1/8" NPT port for an auxiliary temp sensor, is able to hold an additional two quarts of oil compared to stock, and allows for complete oil drain free from the sludge known to stay within the stock pan.
Unlike competitors, which feature small grooves that run against the oil's return flow and disrupt the oil pickup tube's action, the CoolRunner's deep fins properly direct fluid to the oil pickup.
The area under the oil pickup tube features a unique anti-cavitation dimple which smoothly redirects oil flow upwards.
The factory pan uses drain plug that threads into a welded bung that protrudes inwards. This bung blocks oil from completely draining once it hits the top of the threaded bung.
Thanks to a high static oil level, pressure on the pickup tube inlet prevents oil from escaping during an oil change. This leaves almost half a quart of liquid sandpaper in your engine
Duramax oil pans use an RTV-style liquid gasket that must fully seal to prevent leaks. Poorly designed pans with an improper sealing surface can result in leaks or damage from strands of RTV falling in, clogging the oil pickup tube, or jamming the pump.
Borrowing from decades of reliable military development, the CoolRunner uses an OE-style full-length squeeze gap that runs the entire inner perimeter of the pan. This precision-machined feature prevents small RTV strands from breaking off, falling into the sump, and damaging your engine.
All Banks lubrication cooling products are die-cast, not sand-cast like competitors. Made with far greater precision, a die-cast part is denser, smoother, and has virtually no porosity compared to the equivalent sand-cast part.
Sand-cast parts often retain the sand they were molded with. Sand is an abrasive material that is bad for bearings and cylinder walls. In other words, you don’t want sand in your oil. Finally, our long, thin cooling fins are only possible with a die-cast process. Although this process costs more, it's worth it.
2020-2026 Chevy/GMC 2500/3500 6.6L Diesel L5P
Heat kills motor oil.
That's why we engineered the Banks CoolRunner™ Oil Pan.
Banks CoolRunner Oil Pan utilizes technology from our military engine program to extend oil life. The system rejects more heat and reduces aeration better than stock and all competitors. Two additional quarts of oil and Banks FlowThru Fins® aid in cooling. Unlike stock, the CoolRunner allows all fluid to drain during oil changes.
The Banks CoolRunner Oil Pan for the 2017-2019 Duramax out-performs and out-cools the competition by leveraging decades of racing and military engine development.
• 19 deep-cut huge external radiator fins provide more surface area to the cool air moving under the truck.
• The die-cast process provides a smoother interior surface which improves oil flow to the pickup tube and drain.
• A smooth, streamlined area around the oil pickup with an engineered anti-cavitation dimple improves oil flow to the pump by reducing restriction at the filter inlet.
• 15 internal fins absorb more heat from the oil than a stock or any other aftermarket pan.
Banks proprietary FlowThru Fins® maximize thermal energy transfer by lining up the internal and external features with each other.
Engine heat is efficiently drawn from the sump where the hottest oil rests. Cooler oil retains the proper viscosity, which means metal-on-metal surfaces remain properly lubricated.
With more internal heat absorption surface area and more external heat radiation surface area, your motor oil stays within its optimum operating temperature, which prevents oxidation or breakdown even when hauling up a grade.
The CoolRunner oil pan features a 1/8" NPT port for an auxiliary temp sensor, is able to hold an additional two quarts of oil compared to stock, and allows for complete oil drain free from the sludge known to stay within the stock pan.
Unlike competitors, which feature small grooves that run against the oil's return flow and disrupt the oil pickup tube's action, the CoolRunner's deep fins properly direct fluid to the oil pickup.
The area under the oil pickup tube features a unique anti-cavitation dimple which smoothly redirects oil flow upwards.
The factory pan uses drain plug that threads into a welded bung that protrudes inwards. This bung blocks oil from completely draining once it hits the top of the threaded bung.
Thanks to a high static oil level, pressure on the pickup tube inlet prevents oil from escaping during an oil change. This leaves almost half a quart of liquid sandpaper in your engine
Duramax oil pans use an RTV-style liquid gasket that must fully seal to prevent leaks. Poorly designed pans with an improper sealing surface can result in leaks or damage from strands of RTV falling in, clogging the oil pickup tube, or jamming the pump.
Borrowing from decades of reliable military development, the CoolRunner uses an OE-style full-length squeeze gap that runs the entire inner perimeter of the pan. This precision-machined feature prevents small RTV strands from breaking off, falling into the sump, and damaging your engine.
All Banks lubrication cooling products are die-cast, not sand-cast like competitors. Made with far greater precision, a die-cast part is denser, smoother, and has virtually no porosity compared to the equivalent sand-cast part.
Sand-cast parts often retain the sand they were molded with. Sand is an abrasive material that is bad for bearings and cylinder walls. In other words, you don’t want sand in your oil. Finally, our long, thin cooling fins are only possible with a die-cast process. Although this process costs more, it's worth it.
Overall rating: 4.965909 / 5 from 88 reviews.
The CoolRunner Oil Pan is well-built and easy to install. It is praised for its high quality and durability. The oil pan allows for complete fluid drainage during oil changes, and it performs exceptionally well.
Review topics: ["fit","looks","quality","issues","instructions","video","results","pan","packaging","finish","mechanic","oil","customer service","install","tool","banks","leaks","upgrade","bolt","temps","engine","space","solution","truck","plug","change","unit","kit","capacity","seal"].
"I haven’t installed this yet but seems very well made, and a huge improvement from the throwaway stock oil pan which leaves half a quart to a quart of dirty oil in the pan every oil change. That also means all the heavy metals and grim build up at the bottom of the pan with no way to remove it. Super excited to have this upgrade and fix to a horrible design installed!"
"Got the Ultimate Fluid Cooling Bundle For 2020-2026 Chevy/GMC 6.6L Duramax kit and everything is great. Had my mechanic install and he said the fit and finish is the best he has seen. My Engine, transmission and diff should be happy for a very long time."
"Be prepared to spend some time getting the OE pan off. It is on there good and not a lot of room to break the seal. After watching multiple youtube videos the installation went very easy and smooth. Threebond recommends waiting 24hrs before adding oil so plan for that extra time for the install."
"2025 GMC 3500 dually. After installing the oil PAN transmission PAN and diff cover, I am monitoring the system with the edge insite cts3 monitor I have noticed a 2 to 5 degree difference with the oil temperature and transmission temp being cooler. The extra oil capacity is a bonus. This is what I have noticed traveling 5k miles in one week. I am running Amzoil front to back also."
"The kit had everything I needed, instructions were right on and the best thing, that sludge that built up in my old pan, I won’t have to worry about that."
"I recently bought a new Silverado 2500 Duramax and have been upgrading it with Banks parts. I’ve been extremely impressed with everything I’ve purchased so far, well-designed, thoughtfully engineered solutions that deliver performance and add longevity."
"What can you really say Banks is the OG of diesel performance Not only does it look great it performs exceptionally well I did have one issue and I called Banks and they overnighted the part I think before we were off the phone. Exceptional customer service"
"I was told and saw pictures from my mechanic. Maybe 1/5 of a quart was left behind after it was drained. I thought is was going to be more. But I do have 13 quarts to do an oil change now."
"With the cheap OEM pans this paired with the Insane oil filter was a great upgrade. You tube makes this a simple job."
"Phenomenal craftsmanship and now my L5P holds 2+ quarts more, if you have a 2020+ L5P the instructions will call for you to pull the 2 bolts holding the front axle in on the driver side “Don’t do it” there is one more bolt above those 2 that will continue to hold the axle into place and if there’s any slight shifting in the axle house during oil pan installation the bolt holes won’t line up, in my case I loosened that third bolt on the driver side to shift the axle to get the holes to line up. If I could do it again I would just loosen the 2 passenger side fasteners so no headache. Great product throughout and not a hard install. Definitely be a good idea to get a second set of hands at the very end while putting the pan on so the gasket maker doesn’t accidentally scrape anything’s snaking the pan into place. Awesome product! Torque spec for axle tube bolts are 87 lb ft per GM."
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