HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 90033 HVAC Heater Core - Front
Part #: 90033

Four Seasons 90033 HVAC Heater Core - Front

Heater Core, Front
⚙️ 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
📦Heater Core, Front
🚗Fitment: Toyota, Sienna
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Overview of Four Seasons Heater Core 90033 for Toyota Sienna

The Four Seasons Heater Core 90033 is designed specifically for the Toyota Sienna, providing reliable heating performance. This aluminum heater core ensures efficient heat transfer and durability for your vehicle's HVAC system.

  • Core dimensions: 8-5/8 inches length, 6 inches width, 1-1/4 inches thickness
  • Constructed from corrosion-resistant aluminum material
  • Specific fit for Toyota Sienna models
  • Meets or exceeds OEM specifications for quality and performance
  • Includes dual 5/8 inch (15.875 mm) inlet and outlet tubes

Four Seasons Heater Core Product Line Details

The Four Seasons Heater Core line focuses on delivering precise fit and reliable heating components for various vehicle makes and models. The 90033 heater core is part of this line, engineered to match OEM standards and provide consistent cabin heating without adjustable pipe positioning, ensuring a straightforward replacement process.

Product Specifications and Features

This heater core features an aluminum core measuring 8.625 inches in height, 6 inches in width, and 1.25 inches in depth. The aluminum construction offers enhanced heat conductivity and resistance to corrosion, which contributes to longer service life. The dual tubes, each 0.625 inches in diameter, facilitate efficient coolant flow through the core. Designed specifically for the Toyota Sienna, this part number 90033 ensures a precise fit without the need for modifications.

Common Applications and Problem Resolution

  • Restores proper heating function in Toyota Sienna HVAC systems
  • Replaces leaking or clogged heater cores causing coolant loss
  • Eliminates fogging or poor cabin heat due to faulty heater core
  • Addresses overheating issues related to heater core blockages
  • Prevents coolant odors inside the vehicle cabin

Installation Notes and Tips

When installing the Four Seasons Heater Core 90033, ensure compatibility with your Toyota Sienna model year. The specific fit design eliminates the need for adjustable pipe positioning, simplifying installation. It is recommended to flush the cooling system before installation to prevent contamination. Proper sealing and connection of inlet and outlet tubes are essential to avoid leaks.

Quality Assurance and Warranty

The Four Seasons Heater Core 90033 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with corrosion-resistant aluminum, this heater core is built to last under normal operating conditions. Please refer to Four Seasons' warranty policy for coverage details.

BrandFour Seasons
Part Number90033
PositionHeater Core, Front
Length8-5/8
Thickness1-1/4
Width6
Core MaterialAluminum
Universal Or Specific FitSpecific
Adjustable Pipe PositioningNo
Core Depth IN1.250
Core Height IN8.625
Core Width IN6.000
DescriptionHeater cores
Meets / Exceeds OEM?Yes
StyleAluminum heater core
Tube 1 IN0.625
Tube 1 MM15.875
Tube 2 IN0.625
Tube 2 MM15.875
TypeHeater core /aluminum

This part fits 8 vehicles. Search below:

YearMakeModel# DoorsLitersCylindersPositionNotes
2003ToyotaSiennaFrontTo 1/03; Heater Core
2002ToyotaSiennaFrontHeater Core
2001ToyotaSiennaFrontHeater Core
2000ToyotaSiennaFrontHeater Core
1999ToyotaSienna4 Door3.0LV6FrontHeater Core
1999ToyotaSienna5 Door3.0LV6FrontHeater Core
1998ToyotaSienna4 Door3.0LV6FrontHeater Core
1998ToyotaSienna5 Door3.0LV6FrontHeater 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:

1119303318124392796693992185530336603629823148387107080109003390103949303398033HT399422HT399422C

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