PLY 3726 – Aluminum Plymouth Radiator


The PLY 3726 all-aluminum radiator with oil cooler is an exact fit, OEM replacement for 1946 Plymouths. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core has three rows of tubes and measures 18.56 inches from header to header, 16.48 inches from side to side, 3.50 inches thick, and 4.00 inches inside the header. Aluminum tanks are TIG welded to the core to provide the strongest possible bond and has a 1.50-inch inlet and a 1.75-inch outlet. Each unit is individually tested prior to shipping and guaranteed to be 100% leak-free.

NOTE: Shown with optional oil cooler. 


Add Ons

Core Upgrade

2 Rows of 1.25″ Fits most aluminum models

Core Measurements
Click for image
18.56 16.48 3.50 4.00


Additional Details
Inlet 1.50 inch
Outlet 1.75 inch
Construction Material Aluminum
Core Rows 3

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