Part #: 3916

CSF 3916 Radiator

⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, CX-9
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of CSF Radiator 3916 for Mazda CX-9

The CSF Radiator part number 3916 is designed specifically for the Mazda CX-9, providing reliable engine cooling performance. Featuring a durable aluminum core and plastic tanks, this radiator supports efficient heat dissipation to maintain optimal engine temperature.

  • Core Thickness: 1 1/4 inches
  • Core Width: 28 11/16 inches
  • Core Length: 18 7/8 inches
  • Core Material: Aluminum
  • Tank Material: Plastic
  • Inlet Diameter: 1 5/16 inches (left side)
  • Outlet Diameter: 1 5/16 inches (right side)
  • Down flow radiator design
  • Single row radiator core
  • Cap not included

Detailed Product Description

This CSF radiator 3916 is engineered with an aluminum core that offers effective heat transfer and corrosion resistance, essential for maintaining the cooling system of your Mazda CX-9. The plastic tanks are designed to be lightweight while providing durability under typical operating conditions. The down flow core design ensures coolant flows vertically through the radiator, optimizing cooling efficiency for the vehicle's engine. With precise inlet and outlet diameters of 1 5/16 inches on the left and right sides respectively, this radiator matches OEM specifications for seamless integration.

Compatible Applications and Common Issues Addressed

  • Replacement radiator for Mazda CX-9 models requiring a 1 1/4 inch thick core
  • Resolves overheating problems caused by damaged or inefficient radiators
  • Addresses coolant leaks from cracked or worn plastic tanks
  • Improves engine temperature regulation in vehicles with original radiator failure
  • Suitable for vehicles needing a down flow radiator core design

Installation Notes and Tips

When installing the CSF radiator 3916 on a Mazda CX-9, ensure all coolant is properly drained before removal of the old radiator. Verify that the inlet and outlet hose diameters match the radiator connections to avoid leaks. Since the radiator does not include a cap, reuse the existing cap or source an OEM replacement. Inspect mounting points and hardware for wear and replace as necessary to secure the radiator firmly in place.

Quality Assurance and Warranty Information

CSF radiators are manufactured to meet OEM standards, using quality aluminum cores and plastic tanks designed for durability and performance. This radiator is free from hazardous materials and undergoes quality control to ensure reliable operation. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandCSF
Part Number3916
Core Thickness1 1/4
Core Width28 11/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length18 7/8
Inlet Diameter1 5/16 left
Outlet Diameter1 5/16 right
Down Flow Or Cross Flow TypeDown flow
Radiator Core Row Quantity1
Cap IncludedNo
Box Height (in)6 1/4
Box Length (in)31 5/8
Box Weight (lbs)13
Box Width (in)26 5/16
Hazardous MaterialNo
Inlet Length (in)29 1/2
Inlet Width (in)1 5/8
Oil Cooler (in)No
Outlet Length (in)29 1/2
Outlet Width (in)1 5/8
Tech NoteO.e.m. style plastic tank & aluminum core.

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023MazdaCX-92.5LL4N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2022MazdaCX-92.5LL4N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2021MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.
2020MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.
2019MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.
2018MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.
2017MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.
2016MazdaCX-92.5LL4N/AOE style design ensures optimal fitment and performance.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

13622MA3010245PY8V-15-200

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.