CSF 3219 Radiator

Brand CSF 3219
Core Thickness 1 11/16
Core Width 23 9/16
Core Material Copper
Tank Material Brass
Core Length 24 7/16
Inlet Diameter 1 1/2 left
Outlet Diameter 1 1/2 left
Down Flow Or Cross Flow Type Down flow
Radiator Core Row Quantity 3
Cap Included No
Box Height (in) 8
Box Length (in) 35
Box Weight (lbs) 32
Box Width (in) 33
Csf Cap Number 4503
Hazardous Material No
Inlet Length (in) 23 3/4
Inlet Width (in) 2 3/16
Oil Cooler (in) 14 3/8 (high-effeciency concentric type)
Outlet Length (in) 23 3/4
Outlet Width (in) 2 3/16
Tech Note All metal heavy duty model with sensor port on top tank.
Fits —

All-metal construction. Copper core and brass tanks for durable cooling performance.

3-row design. Built for efficient heat transfer in demanding cooling systems.

Wind tunnel tested. Validated for cooling performance in laboratory conditions.

Cross-references 8-97333-140-0, 8-97333-140-4 and 8-97333-141-0 for the same application. See all 5.

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CSF 3219 Heavy-Duty Radiator Overview

The CSF 3219 is a 3-row all-metal radiator built with a copper core and brass tanks for demanding cooling applications. It features a down-flow design, a top tank sensor port, and integrated high-efficiency concentric oil cooler tubing for added thermal management.

Designed for vehicle owners searching for a radiator replacement for Isuzu NPR, Isuzu NQR, and related medium-duty truck applications, this CSF radiator focuses on fit, durability, and cooling performance. The CSF 3219 part number is also a direct reference point when comparing OE-style radiator replacements.

Key Features

  • 3-row all-metal construction for heavy-duty service
  • Copper core with brass tanks
  • Down-flow radiator design
  • Core thickness: 1 11/16 in.
  • Core size: 23 9/16 in. wide x 24 7/16 in. long
  • 1 1/2 in. left inlet and 1 1/2 in. left outlet
  • Sensor port on top tank
  • High-efficiency concentric oil cooler section: 14 3/8 in.
  • Cap not included

Product Details

CSF builds radiators to controlled manufacturing standards and validates cooling performance through laboratory wind-tunnel testing. The 3219 belongs to the brand’s 3 Row All Metal line, which is aimed at applications that need a serviceable, metal-core radiator rather than a plastic-tank design. For buyers comparing radiator replacement options for Isuzu NPR and Isuzu NQR trucks, this unit provides the dimensions and connection layout needed for a direct-style replacement search.

This part cross-references OE-style numbers 8-97333-140-0 and 97333140 for the same application.

Common Cooling Problems It Can Address

  • Coolant leaks from aged or damaged radiator tanks
  • Restricted cooling performance from a clogged or corroded core
  • Overheating caused by reduced heat transfer capacity
  • Oil temperature management concerns in equipped applications
  • Sensor-port replacement needs on the top tank

Installation Notes

Verify core dimensions, inlet and outlet location, and sensor-port placement before installation. This radiator uses a down-flow layout and left-side inlet/outlet configuration, so matching the original truck setup is important for proper hose routing and fitment. Confirm the vehicle’s cooling system uses the correct cap specification, since a cap is not included.

For fitment-based searches, this radiator is commonly referenced for Isuzu NPR and Isuzu NQR radiator replacement applications. The CSF 3219 should be matched against the original radiator dimensions and connection points before installation.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered for performance validation in laboratory testing. The brand has supplied radiators worldwide for decades and manufactures a broad range of cooling components across many vehicle applications.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
8-97333-140-08-97333-140-48-97333-141-09733314097333141