PLY 3720 – Aluminum Plymouth Business Coupe Radiator


The PLY 3720 all aluminum radiator is an exact fit, OEM replacement for 1940 Plymouth Business Coupes. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core measures 19.125 inches from header to header, 17.25 inches from side to side, and 2.25 inches thick. Aluminum tanks are TIG welded to the core to provide the strongest possible bond and has a 1.75 inch inlet and a 1.50 inch outlet. Each unit is individually tested prior to shipping and guaranteed to be 100% leak free.

Add Ons

Core Upgrade

2 Rows of 1.25″ Fits most aluminum models

Core Measurements
Click for image
19.125 17.25 2.25


Additional Details
Inlet 1.75 inch
Outlet 1.50 inch
Construction Material Aluminum

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