Derale 25732 Thermostatic Engine Sandwich Adapter 3/8″NPT Ports, 20×1.5mm Filter Thread.

High quality die-cast aluminum thermostatic sandwich adapter with 3/8″ NPT ports and an O-ring diameter of 2 3/4″, this adapter provides external oil lines to allow the addition of an engine oil cooler. It installs between the stock engine oil filter landing and the oil filter. Stock filter is retained. Designed to be used on engines with a 20mm x 1.5 filter thread.

Specifications:
Sandwich Adapter type: G.
Adapter thread size: 20 x 1.5mm.
Adapter o-ring size: 2-3/4″.
Adapter thickness: 1-3/4″.
Adapter inlet size: 3/8″ NPT.

Features:
Provides external oil lines for oil coolers without relocating the factory oil filter.
Cast form high quality aluminum.
Maintain factory equivalent oil filter.
Type G Sandwich Adapter with 20 x 1.5mm thread size *see application guide for specific applications.
Includes sandwich adapter, sleeve nut & O-ring.