Part #: 3637

CSF 3637 Radiator

1 Row Plastic Tank Aluminum Core
2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
1 Row Plastic Tank Aluminum Core
Fitment: Toyota, Sienna
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Overview of CSF 3637 Radiator for Toyota Sienna

The CSF 3637 radiator is designed specifically for Toyota Sienna models, providing reliable cooling performance with a durable aluminum core and plastic tanks. This radiator features a single-row core construction optimized for efficient heat dissipation and long-lasting operation.

  • Core Thickness: 7/8 inch
  • Core Width: 19 inches
  • Core Length: 26 9/16 inches
  • Core Material: Aluminum
  • Tank Material: Plastic
  • Inlet Diameter: 1 3/8 inch (right side)
  • Outlet Diameter: 1 1/2 inch (left side)
  • Cross flow design for effective coolant circulation
  • Radiator Core Row Quantity: 1
  • Includes high-efficiency plate type oil cooler (13 3/4 inches)

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core product line combines OEM-style plastic tanks with a robust aluminum core to deliver dependable cooling solutions. This design balances weight and durability, making it suitable for vehicles like the Toyota Sienna that require efficient heat exchange without added bulk. The single-row core thickness and cross flow configuration support consistent engine temperature regulation under various driving conditions.

Product Description and Specifications

The CSF 3637 radiator features a 7/8 inch thick aluminum core measuring 19 inches wide and 26 9/16 inches long, providing a solid surface area for heat transfer. The plastic tanks are engineered to OEM specifications, ensuring compatibility and ease of installation. The radiator’s cross flow design allows coolant to move horizontally through the core, improving thermal efficiency. Inlet and outlet diameters are sized at 1 3/8 inches (right) and 1 1/2 inches (left), respectively, matching Toyota Sienna factory connections. Additionally, the integrated high-efficiency plate type oil cooler enhances overall engine cooling performance.

Common Applications and Issues Addressed

  • Replacement for leaking or damaged Toyota Sienna radiators
  • Resolves overheating caused by clogged or inefficient cores
  • Addresses coolant flow restrictions due to corrosion or buildup
  • Improves engine temperature stability during heavy use or towing
  • Restores proper coolant circulation with OEM-style inlet and outlet fittings

Installation Notes and Tips

  • Ensure compatibility with Toyota Sienna model year before installation
  • Drain coolant completely before removing the old radiator
  • Inspect hoses and clamps for wear and replace if necessary
  • Use OEM-style coolant and follow manufacturer torque specifications for fittings
  • Bleed the cooling system properly to avoid air pockets after installation

Quality Assurance and Warranty

The CSF 3637 radiator is manufactured to meet OEM standards, featuring a durable aluminum core and plastic tanks designed for longevity. This radiator does not include a cap and is free from hazardous materials. While specific warranty details are not provided, CSF products typically undergo rigorous quality control to ensure reliable performance in Toyota Sienna vehicles.

BrandCSF
Part Number3637
Position1 Row Plastic Tank Aluminum Core
Box Height (in)6 4/16
Box Length (in)32
Box Weight (lbs)11
Box Width (in)21 15/16
Cap IncludedNo
Core Length26 9/16
Core MaterialAluminum
Core Thickness7/8
Core Width19
Down Flow Or Cross Flow TypeCross Flow
Hazardous MaterialNo
Inlet Diameter1 3/8 Right
Inlet Length (in)19 5/8
Inlet Width (in)1 5/16
Oil Cooler (in)13 3/4 (high-efficiency Plate Type)
Outlet Diameter1 1/2 Left
Outlet Length (in)19 5/8
Outlet Width (in)1 5/16
Radiator Core Row Quantity1
Tank MaterialPlastic
Tech NoteO.E.M. style Plastic tanks & Aluminum core.

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006ToyotaSienna3.3LV6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
2005ToyotaSienna3.3LV6N/AOE Style Design; From 9/05; 1 Row Plastic Tank Aluminum Core

* 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:

16041 - 0A38029258012925CU2925TO3010311

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