CSF 3967 Radiator

Brand CSF 3967
Core Thickness 5/8
Core Width 29 1/16
Core Material Aluminum
Tank Material Plastic
Core Length 14 3/4
Inlet Diameter 1 5/16 left
Outlet Diameter 1 5/16 center
Down Flow Or Cross Flow Type Down flow
Box Height (in) 6 1/4
Box Length (in) 31 5/8
Box Weight (lbs) 8
Box Width (in) 22 3/16
Hazardous Material No
Inlet Length (in) 29 7/8
Inlet Width (in) 1 7/16
No. Of Rows 1
Oil Cooler (in) No
Outlet Length (in) 29 7/8
Outlet Width (in) 1 7/16
Radiator Cap Supplied No
Tech Note O.e.m. style plastic tank & aluminum core.
Fits Mazda · 10 vehicles

OEM-style design. Plastic tank and aluminum core construction.

Wind tunnel tested. Validated for cooling performance in the lab.

ISO/TSO certified. Built in certified factories with high-performance standards.

Cross-references Bosch 13761, MA3010247 and PEDD-15-200A for the same application. See all 4.

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CSF 3967 Radiator for Mazda 3

The CSF 3967 radiator is an OE-style cooling replacement built with an aluminum core and plastic tanks for the 2014-2018 Mazda 3 and Mazda 3 Sport built in Mexico. It is engineered to match the original down-flow layout and factory-style hose connections for direct-fit service.

  • OE-style plastic tank and aluminum core construction
  • Down-flow radiator design
  • Core thickness: 5/8 in.
  • Core width: 29 1/16 in.; core length: 14 3/4 in.
  • Inlet diameter: 1 5/16 in. left
  • Outlet diameter: 1 5/16 in. center
  • Single-row core design
  • Built by CSF, a radiator manufacturer with ISO/TSO-certified factories

Detailed Product Overview

CSF Part Number 3967 is designed for drivers needing a direct replacement radiator for a Mazda 3 cooling system service. It follows the original equipment style with a plastic tank and aluminum core layout, helping maintain factory fitment and cooling-system geometry on Mexico-built 2014-2018 Mazda 3 and Mazda 3 Sport models. CSF has supplied radiators worldwide for decades and uses engineering and wind-tunnel validation methods to verify cooling performance during development. This part cross-references Bosch 13761 for the same application.

Common Cooling Issues This Radiator Addresses

  • Cracked or leaking radiator tanks
  • Corrosion or damage in the core
  • Restricted coolant flow from an aging radiator
  • Overheating caused by reduced heat transfer
  • Fitment problems from a damaged or incorrect replacement unit

Installation Notes and Tips

Verify vehicle build origin before ordering, since this radiator fits Mexico-built only applications. Confirm inlet and outlet orientation, hose diameter, and overall dimensions against the original unit before installation. Inspect hoses, clamps, and coolant condition during radiator replacement to help prevent repeat cooling-system issues.

Quality Assurance

CSF manufactures radiators to high-performance standards in ISO/TSO-certified facilities and validates cooling performance during development. Part Number 3967 is built to OE-style specifications for consistent replacement on the listed Mazda 3 applications.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2018Mazda32.5LL4Mexico Built Only
2018Mazda3 Sport2.0LL4Mexico Built Only
2017Mazda32.0LL4Mexico Built Only
2017Mazda3 Sport2.5LL4Mexico Built Only
2016Mazda32.5LL4Mexico Built Only
2016Mazda3 Sport2.0LL4Mexico Built Only
2015Mazda32.0LL4Mexico Built Only
2015Mazda3 Sport2.0LL4Mexico Built Only
2014Mazda32.5LL4Mexico Built Only
2014Mazda3 Sport2.0LL4Mexico Built Only
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13761MA3010247PEDD-15-200APEDD-15-200B