CSF 3766 Radiator

Brand CSF 3766
Core Thickness 5/8
Core Width 28 11/16
Core Material Aluminum
Tank Material Plastic
Core Length 16 7/8
Inlet Diameter 1 5/16 left
Outlet Diameter 1 5/16centre
Down Flow Or Cross Flow Type Down flow
Radiator Core Row Quantity 1
Cap Included No
Box Height (in) 6 1/4
Box Length (in) 31 5/8
Box Weight (lbs) 9
Box Width (in) 24 1/8
Csf Cap Number 4503
Hazardous Material No
Inlet Length (in) 29 1/2
Inlet Width (in) 1 5/8
Outlet Length (in) 29 1/2
Outlet Width (in) 1 5/8
Tech Note O.e.m. style plastic tanks & aluminum core.
Fits Mazda · 17 vehicles

OE-style design. Plastic tanks and an aluminum core match original equipment construction.

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

Down-flow radiator with a single-row core for efficient heat transfer.

Cross-references APDI 8013317, BBB Industries 13317 and Spectra Premium CU13317 for the same application. See all 8.

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CSF 3766 Radiator for Mazda CX-5

CSF 3766 is an OE-style radiator built with an aluminum core and plastic tanks for Mazda CX-5 cooling system service. It is engineered for non-turbo Mazda CX-5 applications and uses a down-flow design to match the original layout.

Key Features

  • Aluminum core with plastic tanks
  • Down-flow radiator design
  • Single-row core construction
  • Core dimensions: 28 11/16 in. wide, 16 7/8 in. long, 5/8 in. thick
  • Inlet diameter: 1 5/16 in., left side
  • Outlet diameter: 1 5/16 in., center
  • OE-style plastic tank and aluminum core construction
  • Cross-references APDI 8013317 and Spectra Premium CU13317 for the same application

Detailed Description

Designed for 2013-2023 Mazda CX-5 non-turbo models, CSF 3766 follows an OE-style layout to support proper fitment and cooling performance. CSF manufactures radiators to high-performance standards and validates designs through wind tunnel testing, with production backed by ISO/TSO-certified factories and decades of global supply experience. This radiator is a direct-fit cooling replacement for Mazda CX-5 service where the original radiator uses a plastic tank and aluminum core configuration.

Fits 2013-2019 Mazda CX-5, N/A. Fits 2019-2021 Mazda CX-5, N/A, OE Style Design; Non-Turbo Models Only. Fits 2022-2023 Mazda CX-5, N/A, Non-Turbo Models Only. CSF 3766 is a practical choice when replacing a worn or leaking radiator on a Mazda CX-5 non-turbo model.

What It Helps Address

  • Coolant leaks from aging radiator tanks or seams
  • Overheating caused by reduced heat transfer
  • Restricted coolant flow from internal wear or buildup
  • Fitment issues when replacing an OE-style Mazda CX-5 radiator
  • Cooling system service on non-turbo CX-5 models

Installation Notes and Tips

Verify engine configuration before ordering, since this radiator is for non-turbo Mazda CX-5 models only. Confirm inlet and outlet orientation, core dimensions, and mounting layout against the original unit before installation. Transfer any required components from the original radiator as needed, and inspect hoses, clamps, and coolant condition during replacement.

Quality Assurance

CSF radiators are manufactured in ISO/TSO-certified facilities and built to support OE-style fitment and cooling performance. The design has been validated through laboratory wind tunnel testing, and CSF has supplied radiators worldwide for more than 50 years.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2023MazdaCX-52.5LL4N/ANon-Turbo Models Only
2022MazdaCX-52.5LL4N/ANon-Turbo Models Only
2021MazdaCX-52.5LL4N/AOE Style Design; Non-Turbo Models Only
2020MazdaCX-52.5LL4N/AOE Style Design; Non-Turbo Models Only
2019MazdaCX-52.5LL4N/AOE Style Design; Non-Turbo Models Only
2019MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2018MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2018MazdaCX-52.5LL4N/AOE style design ensures optimal fitment and performance.
2017MazdaCX-52.5LL4N/AOE style design ensures optimal fitment and performance.
2017MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2016MazdaCX-52.5LL4N/AOE style design ensures optimal fitment and performance.
2016MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2015MazdaCX-52.5LL4N/AOE style design ensures optimal fitment and performance.
2015MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2014MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
2014MazdaCX-52.5LL4N/AOE style design ensures optimal fitment and performance.
2013MazdaCX-52.0LL4N/AOE style design ensures optimal fitment and performance.
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8013317BBB Industries — 13317Spectra Premium — CU13317MA3010240PE01 15 200APE01 15 200BPE0115200PYFW-15-200