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Bus & Truck Radiators

Our Heavy Duty radiators are ready to install and are available for the most popular heavy truck and bus models on the road. Our bolt-on, soldered and PTA radiators offer superior thermal and durability performance, and are designed to fit right the first time. Truck Tough® provides coverage on nearly 200 models.

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International Navistar Radiator - Solder On Tank 0437321S

SKU0437321S
OE Core Size27 1/16 x 12 1/4 x 1 7/8
ConnectionsInlet 2 1/2 & Outlet 2 1/4
EOC & O/C Notes18" oil cooler on grille side
$1,078.62 $1,267.91

International Navistar Radiator - Solder On Tank 0437326S

SKU0437326S
OE Core Size31 1/4 x 12 13/16 x 2 1/4
ConnectionsInlet 2 1/2 & Outlet 2 1/2 & 2 1/4
EOC & O/C Notes18" oil cooler on grille side
NotesStepped outlet 2 1/2" - 2 1/4" connection
$946.17 $1,154.92

International Navistar Radiator - Solder On Tank 0437330S

SKU0437330S
OE Core Size31 1/4 x 12 3/4 x 2 1/4
ConnectionsInlet 2 1/2 & Outlet 2 1/2 & 2 1/4
NotesSee 0437331S for unit with oil cooler
 Stepped outlet 2 1/2" - 2 1/4" connection
$780.61 $1,013.69

International Navistar Radiator - Solder On Tank 0437333S

SKU0437333S
OE Core Size31 1/4 x 12 1/4 x 2 1/4
ConnectionsInlet 2 1/2 & Outlet 2 1/2
EOC & O/C Notes18" oil cooler
$1,076.95 $1,296.16

International Navistar Radiator - Solder On Tank 0437338S

SKU0437338S
OE Core Size30 1/2 x 12 1/4 x 2 1/4
ConnectionsInlet 2 1/2 & Outlet 2 1/4
NotesSee 0437219S for unit with oil cooler on grill side
$664.71 $914.83

International Navistar Radiator - Solder On Tank 0437344S

SKU0437344S
OE Core Size46 3/8 x 28 x 2 1/4
ConnectionsInlet 2 1/2 & Outlet 2 1/2
Picture NotesPicture shown is a bolt-on tank version of this model.
NotesUse 0437121S if Core Height needed is 41, 0437122S if 35 5/8
 Use 0437304S if Core Width needed is 30 1/4
$1,426.30 $1,564.50