Part #: 646321

Nissens 646321 Radiator

⚙️ 81 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: Toyota, Corolla and Matrix
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Reliable Aluminum Radiator for Toyota Corolla and Matrix

The Nissens 646321 radiator is designed to provide efficient cooling performance for Toyota Corolla and Matrix models. Constructed from durable aluminum, this radiator ensures effective heat dissipation to maintain optimal engine temperature.

  • Material: High-quality aluminum for enhanced heat transfer and corrosion resistance
  • Core Height: 13.8976 inches for adequate cooling surface area
  • Core Width: 23.6220 inches to fit specific Toyota Corolla and Matrix configurations
  • Core Length: 0.6299 inches, optimized for proper coolant flow
  • Compatible with Toyota Corolla and Matrix models requiring part number 646321

Detailed Product Description

The Nissens 646321 radiator features a robust aluminum construction that supports efficient engine cooling by maximizing heat exchange. Its core dimensions—13.8976 inches in height, 23.6220 inches in width, and 0.6299 inches in length—are engineered to match the cooling system requirements of select Toyota Corolla and Matrix vehicles. This radiator is designed to replace the original equipment part, ensuring proper fitment and reliable performance under normal operating conditions.

Common Applications and Problem Resolution

  • Replaces damaged or leaking radiators in Toyota Corolla and Matrix models
  • Addresses engine overheating issues caused by inefficient cooling
  • Restores proper coolant circulation and heat dissipation
  • Prevents coolant leaks that can lead to engine damage
  • Supports vehicle performance by maintaining stable engine temperatures

Installation Notes and Tips

When installing the Nissens 646321 radiator, ensure the vehicle is cooled down before removal of the old radiator. Verify compatibility with your specific Toyota Corolla or Matrix model year. Properly secure all mounting points and reconnect hoses to prevent leaks. It is recommended to flush the cooling system and replace coolant during installation to maintain system integrity.

Quality Assurance and Warranty

Nissens radiators are manufactured to meet OEM standards for fit and function. The aluminum construction provides durability and resistance to corrosion. While specific warranty details are not provided here, Nissens products typically come with a limited warranty covering manufacturing defects. Consult the product documentation or supplier for exact warranty terms.

BrandNissens
Part Number646321
MaterialAluminum
Core Height13.8976
Core Width23.6220
Core Length0.6299

This part fits 81 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2008ToyotaCorollaCE1.8LL4GASN/AJapan Built Vehicle
2008ToyotaCorollaS1.8LL4GASN/AJapan Built Vehicle
2008ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2008ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2008ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2008ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2008ToyotaCorollaLE1.8LL4GASN/AJapan Built Vehicle
2008ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2008ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2008ToyotaMatrixXR1.8LL4GASN/AManual Trans
2008ToyotaMatrixBase1.8LL4GASN/AManual Trans
2007ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2007ToyotaCorollaS1.8LL4GASN/AJapan Built Vehicle
2007ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2007ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2007ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2007ToyotaCorollaCE1.8LL4GASN/AJapan Built Vehicle
2007ToyotaCorollaLE1.8LL4GASN/AJapan Built Vehicle
2007ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2007ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2007ToyotaMatrixXR1.8LL4GASN/AManual Trans
2007ToyotaMatrixBase1.8LL4GASN/AManual Trans
2006ToyotaCorollaS1.8LL4GASN/AJapan Built Vehicle
2006ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2006ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2006ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2006ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2006ToyotaCorollaXRS1.8LL4GASN/A
2006ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2006ToyotaCorollaLE1.8LL4GASN/AJapan Built Vehicle
2006ToyotaCorollaCE1.8LL4GASN/AJapan Built Vehicle
2006ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2006ToyotaMatrixXR1.8LL4GASN/AFWD (Manual Trans)
2006ToyotaMatrixXRS1.8LL4GASN/A
2006ToyotaMatrixBase1.8LL4GASN/AFWD (Manual Trans)
2005ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2005ToyotaCorollaS1.8LL4GASN/AJapan Built Vehicle
2005ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2005ToyotaCorollaXRS1.8LL4GASN/A
2005ToyotaCorollaCE1.8LL4GASN/AJapan Built Vehicle
2005ToyotaCorollaLE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2005ToyotaCorollaS1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2005ToyotaCorollaLE1.8LL4GASN/AJapan Built Vehicle
2005ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Manual Trans)
2005ToyotaCorollaCE1.8LL4GASN/AExc.Japan Built Vehicle (Auto Trans)
2005ToyotaMatrixXRS1.8LL4GASN/A
2005ToyotaMatrixXR1.8LL4GASN/AFWD (Manual Trans)
2005ToyotaMatrixBase1.8LL4GASN/AFWD (Manual Trans)
2004ToyotaCorollaCE1.8LL4GASN/ATo 05/2004 (Manual Trans) (Exc.Japan Built Vehicle)
2004ToyotaCorollaS1.8LL4GASN/ATo 05/2004 (Manual Trans) (Japan Built Vehicle)
2004ToyotaCorollaCE1.8LL4GASN/ATo 05/2004 (Auto Trans)
2004ToyotaCorollaLE1.8LL4GASN/ATo 05/2004 (Manual Trans) (Exc.Japan Built Vehicle)
2004ToyotaCorollaCE1.8LL4GASN/ATo 05/2004 (Manual Trans) (Japan Built Vehicle)
2004ToyotaCorollaS1.8LL4GASN/ATo 05/2004 (Manual Trans) (Exc.Japan Built Vehicle)
2004ToyotaCorollaCE1.8LL4GASN/AFrom 05/2004 (Japan Built Vehicle)
2004ToyotaCorollaLE1.8LL4GASN/ATo 05/2004 (Manual Trans) (Japan Built Vehicle)
2004ToyotaCorollaCE1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Manual Trans)
2004ToyotaCorollaCE1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Auto Trans)
2004ToyotaCorollaLE1.8LL4GASN/ATo 05/2004 (Auto Trans)
2004ToyotaCorollaS1.8LL4GASN/ATo 05/2004 (Auto Trans)
2004ToyotaCorollaS1.8LL4GASN/AFrom 05/2004 (Japan Built Vehicle)
2004ToyotaCorollaLE1.8LL4GASN/AFrom 05/2004 (Japan Built Vehicle)
2004ToyotaCorollaLE1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Manual Trans)
2004ToyotaCorollaLE1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Auto Trans)
2004ToyotaCorollaS1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Manual Trans)
2004ToyotaCorollaS1.8LL4GASN/AFrom 05/2004 (Exc.Japan Built Vehicle) (Auto Trans)
2004ToyotaMatrixXR1.8LL4GASN/AFWD (Manual Trans)
2004ToyotaMatrixXRS1.8LL4GASN/A
2004ToyotaMatrixBase1.8LL4GASN/AFWD (Manual Trans)
2003ToyotaCorollaCE1.8LL4GASN/AManual Trans (Exc.Japan Built Vehicle)
2003ToyotaCorollaCE1.8LL4GASN/ASuitable for vehicles equipped with automatic transmissions.
2003ToyotaCorollaLE1.8LL4GASN/ASuitable for vehicles equipped with automatic transmissions.
2003ToyotaCorollaS1.8LL4GASN/AManual Trans (Japan Built Vehicle)
2003ToyotaCorollaCE1.8LL4GASN/AManual Trans (Japan Built Vehicle)
2003ToyotaCorollaLE1.8LL4GASN/AManual Trans (Japan Built Vehicle)
2003ToyotaCorollaLE1.8LL4GASN/AManual Trans (Exc.Japan Built Vehicle)
2003ToyotaCorollaS1.8LL4GASN/AManual Trans (Exc.Japan Built Vehicle)
2003ToyotaCorollaS1.8LL4GASN/ASuitable for vehicles equipped with automatic transmissions.
2003ToyotaMatrixXRS1.8LL4GASN/A
2003ToyotaMatrixXR1.8LL4GASN/AFWD (Manual Trans)
2003ToyotaMatrixBase1.8LL4GASN/AFWD (Manual Trans)

* 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:

130242164000D230164000D2401640021130164002114016400211408716400211501640021160164002117016400211801640021180871640022180164100D230164100D240164100D25024282948432456734199734200736102080124288896909488969096CU2198CU2428DRM50085PL011172

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