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Derale Thermostatic Sandwich Adapter - Multiple Engine Filter Threads

Derale Thermostatic Sandwich Adapter - Multiple Engine Filter Threads

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Derale Thermostatic Sandwich Adapter - Multiple Engine Filter Threads Multiple Threads D25782
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Install an oil cooler to improve the performance and longevity of your engine without having to worry about moving the factory oil filter. Thermostatic bypass system allows your engine to warm up faster. Call 800-298-8924 to order Derale accessories and parts part number D25782 or order online at etrailer.com. Free expert support on all Derale products. Guaranteed Lowest Price and Fastest Shipping for Derale Thermostatic Sandwich Adapter - Multiple Engine Filter Threads. Accessories and Parts reviews from real customers.
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Derale Accessories and Parts

  • Engine Oil Coolers
  • Oil Line Adapters
  • Derale
  • Sandwich Adapter
  • Multiple Threads

Install an oil cooler to improve the performance and longevity of your engine without having to worry about moving the factory oil filter. Thermostatic bypass system allows your engine to warm up faster.


  • Provides external lines for simple installation of oil cooler without having to reposition oil filter
  • Allows oil cooler than 180 degrees to bypass heat exchanger, ensuring quicker engine warm-up
  • Fits most vehicles with spin-on oil filters
  • Includes sleeve nuts and O-rings
  • Made in USA


  • Ports: 3/8" NPT
  • Thickness: 1-3/4" or 2-1/8, depending on O-ring used
  • 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
  • O-ring diameters: 2-3/4" and 3-1/2"
  • 1-Year warranty

25782 Derale Thermostatic Engine Sandwich Adapter Kit, Type A

Item # D25782

Installation Details D25782 Installation instructions


Ask the Experts about this Derale Accessories and Parts

  • How Does Oil Cooler Attach to 2012 Chevy Silverado
    Engine oil coolers do not get oil fed to them the same was as transmission coolers so the snap in fitting part # D13035 that you referenced would not work for you. The oil filters get oil from the oil filter fitting. So instead you'd need the Derale Thermostatic Sandwich Adapter # D25782.
    view full answer...
  • Engine Oil Cooler Sandwich Adapter for a 2003 Chevy Suburban 1500 with a 5.3 Liter Engine
    According to Derale, the 5.3 liter engine used in 2007 and 2008 uses a filter thread size of 22 x 1.5mm and an O-ring size of 2-3/4 inches. You would need # D25734. However, to be on the safe side, I recommend Derale Thermostatic Sandwich Adapter, # D25782. It will work with engine thread filter sizes 3/4 inch-16, 13/16 inch-16, 18 mm x 1.5 mm, 20 mm x 1.5 mm, and 22 mm x 1.5 mm. And fits O-ring sizes 2-3/4 inches or 3-1/2 inches. So it basically covers anything that could be on your...
    view full answer...
  • Derale Thermostatic Sandwich Adapter Recommendation for a 2007 GMC 3500HD Dually
    I would recommend you get a Derale Thermostatic Sandwich Adapter # D25782 as it comes with multiple adapter sizes to ensure that you get the correct size for your application. I did some checking and it looks like you will need the 22 mm x 1.5 mm size for your 2007 GMC 3500HD. This is one of the included sizes in the # D25782. However, since you said you have a LBZ engine and I was under the impression that the 2007 trucks had the LMM engine the # D25720 would be a safe recommendation...
    view full answer...

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Info for this part was:

Updated by:
DeAnne T
Updated by:
Daron K

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