Derale Standard Engine Spin On Adapter with 1/2" NPT Ports, 3/4"-16 Engine Thread 15703 1992-ford-e-350-econoline-club-wagon-esi8758529 What does "52mm Journal Size"

What does "52mm Journal Size" refer to

It adds a lot of weight and drag to the engine

Year Make Model Submodel 2003-2006 Dodge Sprinter 2500 Base 2002-2006 Freightliner Sprinter 2500 Base

King Engine Bearings Ford Ecoboost 3

1993-1995 Chevrolet P30 Base 1978-1985

Derale Standard Engine Spin On Adapter with 1/2" NPT Ports, 3/4"-16 Engine Thread 15703 1992-ford-e-350-econoline-club-wagon-esi8758529 What does "52mm Journal Size"This high quality die cast aluminum spin on adapter features 1 2" NPT ports, 3 4" 16 thread size and fits 2 1 2" to 2 3 4" oil filter landings. Spin on adapters provide external oil lines to allow the addition of an engine oil cooler and or remote filter mount, installing at the stock engine oil filter location. With an attractive, billet style look and ultra bright, polished appearance it adds style and function. Derale Standard Engine Spin On