Part #: 3779

CSF 3779 Radiator

⚙️ 20 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, 3 and 3 Sport
🔄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 Part Number 3779

The CSF radiator 3779 is designed specifically for Mazda 3 and Mazda 3 Sport models, providing reliable engine cooling performance. Featuring an aluminum core and plastic tanks, this radiator supports efficient heat dissipation and durability for your vehicle's cooling system.

  • Core thickness: 5/8 inch
  • Core width: 29 1/16 inches
  • Core length: 14 3/4 inches
  • Aluminum core material with plastic tanks
  • Down flow radiator design
  • Inlet diameter: 1 5/16 inches (left side)
  • Outlet diameter: 1 5/16 inches (center)
  • Single core row construction
  • Cap not included (compatible with CSF cap number 4503)

Detailed Product Description

This CSF radiator, part number 3779, is engineered to meet the cooling requirements of Mazda 3 and Mazda 3 Sport vehicles. The radiator features a 5/8 inch thick aluminum core that ensures effective heat transfer while maintaining lightweight construction. The plastic tanks are designed in an OEM style to provide a precise fit and reliable sealing. The down flow design promotes efficient coolant flow through the radiator core, optimizing engine temperature regulation under various driving conditions.

Compatible Vehicles and Applications

This radiator is compatible with the following Mazda models:

  • Mazda 3
  • Mazda 3 Sport

It is intended for use in cooling system repairs or upgrades where the original radiator requires replacement due to leaks, corrosion, or reduced cooling efficiency.

Common Issues Addressed by This Radiator

  • Engine overheating caused by radiator core damage or clogging
  • Coolant leaks from cracked or worn plastic tanks
  • Reduced cooling performance due to corrosion or internal blockages
  • Failure of OEM radiator components leading to engine temperature fluctuations
  • Replacement of damaged or faulty radiator to restore proper coolant flow

Installation Notes and Tips

  • Ensure compatibility with Mazda 3 or Mazda 3 Sport before installation
  • Use the recommended CSF radiator cap number 4503 for proper sealing
  • Inspect all hoses and clamps for wear and replace if necessary during installation
  • Flush the cooling system to remove debris before installing the new radiator
  • Check for proper coolant levels and bleed air from the system after installation

Quality Assurance and Warranty

The CSF radiator 3779 is manufactured with high-quality aluminum core and OEM-style plastic tanks to meet industry standards for durability and performance. This radiator is free from hazardous materials and designed to provide consistent cooling efficiency. Warranty coverage details should be confirmed with the product documentation or manufacturer.

BrandCSF
Part Number3779
Box Height (in)6 1/4
Box Length (in)31 5/8
Box Weight (lbs)9
Box Width (in)22 3/8
Cap IncludedNo
Core Length14 3/4
Core MaterialAluminum
Core Thickness5/8
Core Width29 1/16
Csf Cap Number4503
Down Flow Or Cross Flow TypeDown Flow
Hazardous MaterialNo
Inlet Diameter1 5/16 Left
Inlet Length (in)29 1/2
Inlet Width (in)1
Outlet Diameter1 5/16Centre
Outlet Length (in)29 1/2
Outlet Width (in)1
Radiator Core Row Quantity1
Tank MaterialPlastic
Tech NoteO.E.M. style Plastic tanks & Aluminum core.

This part fits 20 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2018Mazda32.0LL4N/AJapan Built
2018Mazda32.5LL4N/AJapan Built
2017Mazda3Hatchback2.0LL4N/AJapan Built
2017Mazda3Sedan2.5LL4N/AJapan Built
2017Mazda3Sedan2.0LL4N/AJapan Built
2017Mazda3Hatchback2.5LL4N/AJapan Built
2016Mazda3Hatchback2.0LL4N/AJapan Built
2016Mazda3Sedan2.5LL4N/AJapan Built
2016Mazda3Sedan2.0LL4N/AJapan Built
2016Mazda3Hatchback2.5LL4N/AJapan Built
2015Mazda3Hatchback2.0LL4N/AJapan Built
2015Mazda3Sedan2.0LL4N/AJapan Built
2015Mazda3Sedan2.5LL4N/AJapan Built
2015Mazda3Hatchback2.5LL4N/AJapan Built
2014Mazda3Sedan2.0LL4N/AJapan Built
2014Mazda3Hatchback2.0LL4N/AJapan Built
2014Mazda3Hatchback2.5LL4N/AJapan Built
2014Mazda3Sedan2.5LL4N/AJapan Built
2014Mazda3 Sport2.0LL4N/AOE style design ensures optimal fitment and performance.
2014Mazda3 Sport2.5LL4N/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:

13404MA3010237PE18-15-20YPE20-15-200PEDD15200 A

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