HomeBelts and Cooling > Thermostat and HousingFour Seasons 86328 Engine Coolant Thermostat / Water Outlet Assembly
Part #: 86328

Four Seasons 86328 Engine Coolant Thermostat / Water Outlet Assembly

Water Outlet
⚙️ 50 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Water Outlet
🚗Fitment: Lexus and Toyota, Avalon, Camry, ES250, ES300h, Highlander, NX250, NX350h, RAV4, RAV4 Prime, Sienna, and Venza
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Reliable Engine Coolant Thermostat and Water Outlet Assembly

The Four Seasons Water Outlet 86328 is designed to maintain optimal engine temperature for select Lexus and Toyota vehicles. This assembly includes a thermostat and a water outlet, engineered to ensure efficient coolant flow and temperature regulation.

  • Includes thermostat for precise temperature control
  • Constructed from durable plastic material
  • Inlet diameter of 1.356 inches for proper coolant flow
  • Mount flange width of 0.39 inches for secure installation
  • Overall height of 4.61 inches to fit designated engine compartments
  • Gasket or seal included to prevent leaks
  • Compatible with multiple Lexus and Toyota models

About the Four Seasons Water Outlet Product Line

The Four Seasons Water Outlet product line focuses on engine coolant components that combine the thermostat and water outlet into a single assembly. This integration simplifies replacement and helps maintain consistent engine temperature control. The 86328 part number represents a reliable solution within this line, designed specifically for certain Lexus and Toyota vehicles.

Detailed Product Description

This engine coolant thermostat and water outlet assembly features a plastic construction that balances durability with corrosion resistance. The included thermostat regulates coolant flow based on engine temperature, while the water outlet directs coolant through the engine’s cooling system. The 1.356-inch inlet diameter and 0.39-inch mounting flange width ensure a precise fit, while the overall height of 4.61 inches accommodates the engine layout of compatible vehicles. The included gasket or seal helps maintain a leak-free connection, essential for maintaining engine performance and preventing overheating.

Compatible Vehicles and Common Applications

  • Compatible with Lexus models including ES250, ES300h, NX250, and NX350h
  • Compatible with Toyota models such as Avalon, Camry, Highlander, RAV4, RAV4 Prime, Sienna, and Venza
  • Used to replace faulty or worn engine coolant thermostat and water outlet assemblies
  • Helps resolve engine overheating issues caused by thermostat failure
  • Addresses coolant leaks from damaged or cracked water outlets
  • Restores proper coolant flow and temperature regulation

Installation Notes and Tips

When installing the Four Seasons Water Outlet 86328, ensure the gasket or seal is properly seated to prevent coolant leaks. Verify the inlet diameter and mounting flange width match the vehicle specifications. It is recommended to drain the coolant system before removal and refill with fresh coolant after installation. Proper torque specifications should be followed to avoid damage to the plastic housing.

Quality Assurance and Warranty

Four Seasons parts are manufactured to meet or exceed OEM standards for fit and function. The Water Outlet 86328 assembly includes a thermostat and gasket to ensure reliable operation. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in material and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number86328
PositionWater Outlet
DescriptionEngine coolant components
Gasket or Seal IncludedYes
Inlet Dia. IN1.356
MaterialPlastic
Mnt Flange Width IN0.39
Overall Height IN4.61
StyleW/ thermostat
Thermostat Included?Included
TypeOutlet

This part fits 50 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025LexusES250N/AWater Outlet
2025LexusNX250N/AWater Outlet
2025LexusNX350hN/AWater Outlet
2025ToyotaRAV4N/AWater Outlet
2025ToyotaSiennaN/AWater Outlet
2024LexusES250N/AWater Outlet
2024LexusNX250N/AWater Outlet
2024LexusNX350hN/AWater Outlet
2024ToyotaCamry2.5LL4N/AWater Outlet
2024ToyotaRAV4N/AWater Outlet
2024ToyotaRAV4 PrimeN/AWater Outlet
2024ToyotaSiennaN/AWater Outlet
2024ToyotaVenzaN/AWater Outlet
2023LexusES250N/AWater Outlet
2023LexusNX250N/AWater Outlet
2023LexusNX350hN/AWater Outlet
2023ToyotaCamry2.5LL4N/AWater Outlet
2023ToyotaRAV4N/AWater Outlet
2023ToyotaRAV4 PrimeN/AWater Outlet
2023ToyotaSiennaN/AWater Outlet
2023ToyotaVenzaN/AWater Outlet
2022LexusES250N/AWater Outlet
2022LexusES300hN/AWater Outlet
2022LexusNX250N/AWater Outlet
2022LexusNX350hN/AWater Outlet
2022ToyotaAvalon2.5LL4N/AWater Outlet
2022ToyotaCamry2.5LL4N/AWater Outlet
2022ToyotaHighlander2.5LL4N/AWater Outlet
2022ToyotaRAV4N/AWater Outlet
2022ToyotaRAV4 PrimeN/AWater Outlet
2022ToyotaSiennaN/AWater Outlet
2022ToyotaVenzaN/AWater Outlet
2021LexusES250N/AWater Outlet
2021LexusES300hN/AWater Outlet
2021ToyotaAvalon2.5LL4N/AWater Outlet
2021ToyotaCamry2.5LL4N/AWater Outlet
2021ToyotaHighlander2.5LL4N/AWater Outlet
2021ToyotaRAV4N/AWater Outlet
2021ToyotaRAV4 PrimeN/AWater Outlet
2021ToyotaSiennaN/AWater Outlet
2021ToyotaVenzaN/AWater Outlet
2020LexusES300hN/AWater Outlet
2020ToyotaAvalon2.5LL4N/AWater Outlet
2020ToyotaCamry2.5LL4N/AWater Outlet
2020ToyotaHighlander2.5LL4N/AWater Outlet
2020ToyotaRAV4N/AWater Outlet
2019LexusES300hN/AWater Outlet
2019ToyotaAvalon2.5LL4N/AWater Outlet
2019ToyotaCamry2.5LL4N/AWater Outlet
2018ToyotaCamry2.5LL4N/AWater Outlet

* 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:

11151801603125010160312501186328

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