BT 5381 – Aluminum Onan RS 15000 Generator Radiator


The BT 5381 all aluminum radiator is an exact fit, OEM replacement for Onan RS 15000 generators. Manufactured in the USA using controlled atmosphere brazing, the epoxy-free core has two rows of 1.00 inch tubes and measures 15.00 inches from header to header, 18.08 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 1.00 inch inlet and outlet. Each unit is individually tested prior to shipping and guaranteed to be 100% leak free.

Core Measurements
Click for image
15.00 18.08 2.25


Additional Details
Inlet 1.00 inch
Outlet 1.00 inch
Top Header (in) 3.00
Bottom Header (in) 3.00
Construction Material Aluminum
Core Rows 2
Radiator Flow Style Downflow
Inlet Location Passenger
Outlet Location Driver
Tube Size 1.00