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  1. Engine Oil Coolers
  2. Derale
  3. Tube-Fin Cooler
  4. W/ Sandwich Adapter
  5. With 3/8 Inch NPT
  6. Class III
Derale Tube-Fin Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) - Class III

Derale Tube-Fin Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) - Class III

Our Price: $124.99
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Engine Oil Coolers
Shipping Weight: 7 lbs
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Derale Engine Oil Coolers - D15502
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16-5/8" Wide x 7-5/8" tall x 3/4" deep, efficient, tube-and-fin cooler core comes with a sandwich adapter and all necessary installation hardware, making it easy to prolong the life of your engine and improve its overall performance. 1-800-940-8924 to order Derale engine oil coolers part number D15502 or order online at Free expert support on all Derale products. Great prices and Fastest Shipping for Derale Tube-Fin Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) - Class III. Engine Oil Coolers reviews from real customers.
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  • Reviews (20)
  • Q & A (0)
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Derale Engine Oil Coolers

  • Tube-Fin Cooler
  • W/ Sandwich Adapter
  • With 3/8 Inch NPT
  • Class III
  • Derale
  • 16-5/8W x 7-5/8T x 3/4D Inch

16-5/8" Wide x 7-5/8" tall x 3/4" deep, efficient, tube-and-fin cooler core comes with a sandwich adapter and all necessary installation hardware, making it easy to prolong the life of your engine and improve its overall performance.


  • Prolongs life of engine oil, reducing number of necessary changes
  • Improves overall functioning and performance of engine
  • Reduces oil temperature by as much as 50 degrees
  • Cools effectively through use of tube-fin core
  • Provides external lines, via sandwich adapter, for simple installation of oil cooler without having to reposition oil filter
  • Includes:
    • Tube-and-fin cooler core
    • Sandwich adapter
    • High-temperature, high-pressure rubber hose with stainless steel clamps
    • Brass hose-barb adapters
    • Multiple sleeve nuts to ensure proper thread size
    • Complete mounting kit
  • Made in USA


  • Heat exchanger:
    • Dimensions: 16-5/8" wide x 7-5/8" tall x 3/4" deep
    • Distance between inlets: 6-1/4"
    • Core width: 13-7/8"
  • Sandwich adapter:
    • Inlet/Outlet ports: 3/8" NPT
    • O-ring diameter: 2-3/4"
    • Engine filter thread size: 3/4"-16, 13/16"-16, 18 mm x 1.5 mm, 20 mm x 1.5 mm and 22 mm x 1.5 mm
  • 1-Year warranty

Perhaps the simplest type of heat exchanger, the tube-fin effectively cools a variety of automotive systems. The concept is simple: Fluid cools as it travels through the core by transferring heat out to the fins. The fins then provide the surface area necessary for sufficient heat exchange to take place, allowing the heat pulled from the fluid to dissipate into the surrounding air. The result is longer-lasting oil and a better-functioning engine.

The sandwich adapter in this kit provides the external oil lines necessary to install a cooler without requiring you to move the factory spin-on oil filter, making it even easier to extend the life of your vehicle's engine. In addition, the thermostatic bypass feature allows oil cooler than 180 degrees to bypass the heat exchanger, so your engine will warm up faster.


15502 Derale Tube and Fin Engine Oil Cooler Kit with Sandwich Adapter, Type B

Item # D15502

Installation Details D15502 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Derale Tube-Fin Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) - Class III - D15502

Average Customer Rating:  4.4 out of 5 stars   (20 Customer Reviews)

16-5/8" Wide x 7-5/8" tall x 3/4" deep, efficient, tube-and-fin cooler core comes with a sandwich adapter and all necessary installation hardware, making it easy to prolong the life of your engine and improve its overall performance.


Installed this product on my 2013 Ram 5.7 Hemi. Install was simple and straight forward. I hoped there would be improvements in the operating temperature of my engine oil, which there was. Now towing my trailer is no worry about engine oil temp. This cooler works exactly as advertised, and the temp never go above 220. An unexpected result was better gas mileage by almost 2 additional miles per gallon. Also the truck runs much quieter than before and smoother. This noticed by my wife who rides with me always. So I would defiantly call this a win win install and purchase.

Ed S.


This upgrade to my Ram has paid for itself after one year of use by extending the oil life thus reducing oil change interval


It doesn't fit my car even though the website said it would. I had already installed the radiator component before i found the filter adapter didn't fit so i couldn't return the product.

Etrailer Expert

Katrina B.


This is a universal kit, so there is no guarantee whether it will fit your application. In order for us to assist you, we need pictures and to know what made the adapter not fit.


Easy to install but make sure you use quality thread tape. Check for leakage after 300 miles of driving. Then check again.


I purchased this kit 1 year ago for an 08 Toyota Highlander V6 Sport. The vehicle had a small (and I mean small) trans cooler already installed with the sport, but adding this additional cooler gives us the piece of mind an confidence that when either towing or evening just sitting in temps up to 116F at the drive through in SoCal during summer hours, my family will stay cool. The fans run less and the whole vehicle runs a bit cooler as well. I have verified this with 3rd party OBD readers, actively watching oil temps both at normal operating temps, hill climbs, towing, and when sitting in extreme heat. IT DOESNT BUDGE! I dont have enough good things to say about this cooler. If youve ever thought about it, you should do it. Very easy to install and it flat out works.


Doesn't take long to install.


Great product. Easy installation.


Bill is very knowledgeable and answered all my questions. Good fella, I can't comment on the product yet because I haven't installed it yet. Thanks Jesse




It has been 1 year now. Here is the story.

Ram 1500 5.7 w/3.92 gears.

Oil temp at speed with no trailer: 224
Oil temp at speed with Springdale Mini RV: 240 (backed off at that point….it would have kept climbing)

After the install:

Oil temp at speed with no trailer: 200ish.
With trailer 210-220

Before I did this, I had to keep it at 55 in the expressway to keep my oil from turning into charcoal. Now I can drive normally. Only at the hottest part of the summer on a long grade did I ever brake 230 and it cooled right back off at the top of the hill.

Also holds about another quart of fluid which I like from a wear/tear perspective.

Even if the temp wasn’t an issue this kit would be worth it to move the oil filter to a non-retarded spot. I opted to go with the frame on the right side. Can change filter from side if wheel is turned. Very nice.


My vehicle is a 2010 Ram 1500 5.7 Hemi 4x4. Overall product is great, those Conti hoses are awesome and little hard to get on lol but only issue I had I couldn’t retain my factory mopar oil filter which isn’t a big deal I got a WIX filter that fit. Thanks for quick shipping and great product! Will be buying a transmission cooler from you soon!


Installed this on my 2012 Jeep Grand Cherokee overland with the hemi as the oil temp was heating up while towing. The install was not fun as I had to remove the front fender, grill and under body shield. Had to relocate oil filter to driver side and as a result, ran out of hose and had go out to buy more. Wish there was a few more feet. I placed oil cooler in front of radiator.

Once installed, oil cooler has worked great as I regularly go off-roading and camping towing a 6k pound trailer. Oil temps stay 20-30 degrees cooler making a huge difference when towing. No issues with the oil cooler after a year of use. Has been a great product, I would recommend it.


This is a quality product and performs great. Installed on a 2012 Toyota Tacoma and had to have some machine work accomplished and a change from the original oil filter. Installation was straight forward after those issues were resolved.


To start I gave the product a good rating only because the kit put together by Derale came with the wrong barb fittings. I called Derale directly and they sent out the right fittings. I have not installed the kit yet but it is well made in the USA. If the kit would of came with the proper barb fitting definitely would of got a excellent rating.


just what i needed easy install nice quality


Happy to find a system with the adapter. Mounted to my 4runner very easily. Not much confidence in the plastic mounting method will make something else.



Product was exactly as advertised. Product was shipped quickly, very happy with service.



Recieved item on time, great quality.


See what our Experts say about this Derale Engine Oil Coolers

  • Engine Oil Cooler 2017 Dodge Ram 1500 Crew Cab 3.6L V6
    I would go with a class II cooler like the Derale Dyno-Cool Tube-Fin # D15502 cooler. This can be used with the 5.7L HEMI as well so it will be plenty of cooling power for your 2017 Dodge Ram with the 3.6L.
    view full answer...
  • Engine Oil Cooler for a 2005 Toyota Tacoma with 4.0 Liter Motor
    Yes, the Derale oil cooler # D15502 will fit your 2005 Toyota Tacoma with the 4.0 liter motor. The filter mount on the motor uses the 3/4"-16 threads and the O-ring diameter is 2-3/4 inch so this kit comes with compatible parts. I have linked a video review of this cooler for you.
    view full answer...
  • How Much Additional Oil Is Needed For Derale Engine Oil Cooler With 10 Feet Of Hose
    I called my contact at Derale and they told me that the engine oil cooler, part # D15502 will hold about 7 ounces of oil. they also said that 10 feet of hose could possibly hold another 7 ounces, so that means the system would total about 14 ounces of oil. A quart of additional oil seems like an excessive amount to account for this cooler system. The instructions say you should install the unit and then start the engine to check for leaks. It then states to check the oil level and add...
    view full answer...
  • Are There Tube-Fin Style Engine Oil Coolers Available
    Yes, if you wanted to use a tube and fin cooler as an engine oil cooler there's no reason you couldn't. The part # D15502 is a tube-fin oil cooler that comes with the parts needed to install on a vehicle. I attached a review video for this product for you to check out as well.
    view full answer...
  • Will Derale Engine Oil Cooler D15502 Fit a 1968 Chevy Camaro with a 250 In Line 6
    The Derale Engine Oil Cooler, # D15502, fits many different engine filter thread sizes (3/4-16, 13/16-16, 18 mm x 1.5 mm, 20 mm x 1.5 mm, and 22 mm x 1.5 mm), so it should fit your 1968 Chevy Camaro. You can check ahead of time by checking the filter thread size of a filter that fits your engine. Also check the O-ring diameter. This kit fits an o-ring diameter of 2-3/4 inches. The unit does have a built-in thermostatic bypass feature. It allows oil cooler than 180 degrees to bypass the...
    view full answer...
  • Will Derale Transmission Cooler Work on 2017 Jeep Patriot
    Since your 2017 Jeep Patriot has an automatic transmission that is not a CVT then yes, the Derale cooler part # D15502 will work. CVT transmissions don't typically have the external cooler lines like the non-CVT transmissions have so based on that we know it will work.
    view full answer...
  • Would Fan Need to be Added to Derale Engine Oil Cooler part # D15502
    I wish Derale sold the kits that offered the fans separately but they do not. Considering the fact that most vehicles don't really need the engine oil cooled significantly you would be just fine with the part # D15502.
    view full answer...
  • Engine Oil Cooler Recommendation For 1990 GMC Pickup Truck With 4.3 Engine
    I did some research and found the thread diameter for the Fram oil filter PH3980 is 18 mm x 1.5 mm. The Derale Engine Oil Cooler, part # D15502 has multiple sleeve nuts and that is one of the thread sizes it is designed to fit so this will work great for you.
    view full answer...
  • Can an Engine Oil Cooler be Used on a 1993 Toyota Pickup Truck with 3.0 Liter V6
    Engine oil coolers are not vehicle specific so you can use one on your 1993 Toyota pickup. Cooler # D15502 will fit and includes the fittings you will need. Your motor takes thread size 3/4-16 and has an o-ring diameter of 2-3/4 inches. In most cases the factory oil filter will fit but sometimes a shorter filter is required. For your truck you could use Fram filter # PH3600 or # PH3614. I have included a link to the instructions for you to view.
    view full answer...
  • Compatibility of Derale # D15502 Oil Cooler Kit on 2011 Ford Flex with 3.5L Engine
    The Derale Tube-Fin Engine Oil Cooler you mentioned, part # D15502 includes the sleeve nut and o-ring that is compatible with the 3.5L engine in your Flex. As long you have sufficient room directly behind the grille and in front of the radiator to accommodate the 16-5/8 x 7-5/8 size of the cooler itself, and you will still be able to remove the oil filter once it is moved 1-3/4 inches further away from the engine block (to accommodate thickness of sandwich adapter), the Cooler Kit will...
    view full answer...
  • Will Engine Oil Cooler Will Work With 2002 Dodge Ram
    Yes, the Derale Tube-Fin Engine Oil Cooler Kit w/ Sandwich Adapter (Multiple Threads) # D15502 will work with your 2002 Dodge Ram. Based on my research your truck has 3/4"-16 threads, which is compatible with the adapter this kit comes with. I have added a link to a video review for you to check out as well.
    view full answer...
  • Which Derale Engine Oil Cooler for 2007 Chevy Uplander with 3.9L Engine
    According to my research, the 3.9L engine in your Uplander has 13/16-16 oil filter threads, and the oil filter uses a 2-3/4 inch diameter gasket. To determine which oil cooler is appropriate for your vehicle, simply match up the filter thread and gasket size to that of the cooler kit. The # D15502 kit you mentioned is compatible with a 13/16-16 engine filter thread size and a 2-3/4 inch diameter gasket, per the product description and therefore would be the correct cooler for your vehicle....
    view full answer...
  • Will Derale Engine Oil Cooler #D15502 Fit on a 2007 Dodge Caliber R/T
    Yes, the Derale Oil cooler part # D15502 that you referenced will fit and work well on your 2007 Dodge Caliber R/T. I looked up the thread size of your oil filter and it's 22 mm x 1.5 mm which is the same size as one of the fittings that comes with this kit.
    view full answer...
  • Recommended Engine Oil Cooler for a 2003 Ford Ranger 3.0L V6
    We have an engine oil cooler that will work for your 2003 Ford Ranger. I recommend the Derale Tube-Fine Engine Oil Cooler Kit, # D15502, has a 16-5/8 inches wide x 7-5/8 inches tall x 3/4 of an inch deep cooler. The kit will include a sandwich adapter to allow you connect the oil outlet and inlet lines the engine to the cooler. The kit includes different size sleeve nuts to you can install your engine oil filter to the sandwich adapter. Your year Ford Ranger will use the 3/4-16 sleeve. Review...
    view full answer...
  • Engine Oil Cooler Kit for a Komatsu PC45R-8 with Yanmar 4 Cylinder Engine
    The Napa Oil Filter 1324 you have has M20x1.5mm threads which means the correct Derale Tube-Fin Engine Oil Cooler Kit for your Yanmar engine is part # D15502. You will need to use the sleeve nut with a black paint marking.
    view full answer...
  • Engine Oil Cooler Kit Recommendation for a 2006 Ford F150 with a 5.4 Liter Engine
    I pulled up the dimensions of the oil filter on your 2006 Ford F150 with a 5.4 liter and you would be better off getting the Derale Plate-Fin Engine Oil Cooler kit part # D15405. The O-ring diameter of your filter will better match the adapter of this kit, this kit also has the thread adapter you need 22mm x 1.5mm and the cooler style of this kit is more efficient as it is a plate-fin style, whereas the # D15502 is a tube-fin style that has an o-ring adapter that would be too small. I...
    view full answer...
  • Engine Oil Cooler Recommendation for 1971 Chevy Camaro
    The best way to keep your your SBC 350 cool in your 1971 Chevy Camaro will be an upgrade aluminum radiator if you haven't already. I had a 1972 Camaro with a 350 and all of the cooling issues I had with the car went away with an improved radiator. If you wanted an oil cooler though we have the Derale part # D15502 which will attach between the oil filter and the block and will cool the oil. I don't like to recommend these typically as they might lower oil pressure slightly but if you have...
    view full answer...
  • 2015 Ford Transit Solutions for 2015 Ford Transit that Overheats When Towing in Warm Weather
    An oil cooler would be exactly what you would need to keep your 2015 Ford Transit from getting too hot when towing. I did some checking and the oil filter threads you would have on your van would be 22 mm x 1.5 mm which is a size that the Derale Cooler part # D15502 is compatible with. You can also look into running distilled water in your radiator during the summer months this will also drastically reduce coolant temperatures. There's a product called Water Wetter that helps as well....
    view full answer...
  • Engine Oil Cooler Mounting Location Options for a 1994 Chevy Camaro
    I own a 1998 Pontiac Trans Am and have a very large transmission cooler plus an underhood ram-air kit (Fast Toys Ram Air) that blocks about 50% of the direct air flow that would go through the radiator and I have had no cooling problems. The cooling fans on our F-body cars are very powerful for cooling the radiator fluid and you should not have a problem with airflow through the radiator. Also, our bottom breather style radiators are very efficient. You will notice that most modern cars...
    view full answer...
    Image 1 for
  • Troubleshooting Engine Oil Leak on 2001 Dodge 5.9 Magnum At Oil Filter Sandwich Adapter
    It sounds like you either have a bad o-ring, the incorrect fittings, or the threads have been stripped. You don't need the entire kit like # D15502 for that fix. I recommend the Derale Thermostatic Sandwich Adapter Kit - Multiple Engine Filter Threads # D15782 as a replacement. This will use barb style fittings and hose clamps at the hoses and when installed correctly should not have any leak.
    view full answer...
  • Engine Oil Cooler Recommendation for 2014 Ford Flex SE 3.5 V6
    The oil filter of your 2014 Ford Flex has a thread size of M22 x 1.5 so the part # D15502 would fit and work well since it comes with a thread adapter in that size. For a relocation kit that is designed for that size you would need the part # D15725.
    view full answer...
  • Which Oil Filter Sandwich Adapter fits 2011 Jeep Wrangler Unlimited Rubicon
    According to my research the 2011 Jeep Wrangler Unlimited Rubicon uses an oil filter with a 3/4-inch 16-TPI thread pitch. For this you will want to use the Derale # D15730 Sandwich Adapter Kit.
    view full answer...
  • What Engine Oil Cooler do You Recommend for My 2017 Ford F-150?
    For a great engine oil cooler for your 2017 Ford F-150, I recommend the Derale Plate-Fin Engine Oil Cooler Kit w/ Spin-On Adapter (3/4-16 Threads) # D15451. This cooler includes all hardware needed for installation and cools your engine oil as much as 50 degrees for optimum temperatures while towing. As far as installation, there are different options where you can mount the cooler. I went ahead and attached a picture from the manual showing you the best locations to install. It is...
    view full answer...
    Image 1 for
  • Engine Oil Cooler Recommendation for 2009 Ford Flex
    For an oil cooler for your Ford Flex, I recommend the Derale Stacked-Plate Engine Oil Cooler Kit with Sandwich Adapter, part # D15602. This can reduce engine oil temperature by as much as 50 degrees and includes the complete mounting kit along with the adapters needed for installation. This cooler measures 13 inches wide by 4-9/16 inches tall by 2 inches deep.
    view full answer...

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