Derale Performance 25782 Universal Thermostatic Oil Filter Sandwich Adapter 3/8" NPT

The Derale Performance 25782 is a universal thermostatic sandwich adapter designed to enable the addition of an external engine oil cooler to most passenger vehicles. This versatile adapter installs between the stock oil filter mounting base and the oil filter, allowing you to retain the use of your original filter while routing oil through an external cooling system.

Key Features:

• Thermostatic control activates at 180°F to regulate oil flow through the cooler
• Universal fit accommodates oil filter mounting surfaces from 2-3/4" to 3-1/2" diameter
• Dual 3/8" NPT ports for connecting oil cooler lines
• Retains factory oil filter for easy maintenance
• Fits approximately 90% of passenger vehicles on the road
• Includes all necessary hardware for installation

The built-in thermostat ensures oil is only routed through the external cooler once it reaches optimal operating temperature, preventing overcooling during warm-up and cold weather operation. This sandwich adapter is ideal for vehicles used in towing, racing, or high-performance applications where additional oil cooling capacity is needed to maintain safe operating temperatures.