This thermostat housing assembly (plastic type) is designed for Toyota Vios 1.5 models across multiple generations. It serves as the mounting and sealing point for the engine thermostat, ensuring proper coolant flow and stable engine operating temperature.

Manufactured to OEM specifications, this housing provides accurate fitment and reliable performance when replacing aged, cracked, or leaking thermostat housings.

Vehicle Compatibility

• Toyota Vios 1.5 NCP42 (2003–2007)

• Toyota Vios 1.5 NCP93 (2007–2012)

• Toyota Vios 1.5 NCP150 (2013–2016)

Product Details

• Product Type: Thermostat Housing

• Material: Plastic

• OEM Part Number: 16321-21020

• Country of Origin: Made in Japan

Important Notes

• This listing is for the thermostat housing only

• Thermostat and gasket are not included unless stated

• Professional installation recommended

• Please confirm chassis code and part number before purchase

Why Replace the Thermostat Housing

Over time, plastic thermostat housings may become brittle due to heat cycles, leading to coolant leaks or improper sealing. Replacing a worn housing helps maintain correct coolant circulation and prevents overheating issues.

Q&A (SEO-friendly)

Q: Does this fit all Toyota Vios 1.5 models?
A: This part fits Vios 1.5 models with chassis codes NCP42, NCP93, and NCP150. Always confirm before purchase.

Q: Is this part original specification?
A: Yes, it matches OEM specification and uses the original Toyota part number 16321-21020.

Q: Is the thermostat included?
A: No. This listing is for the thermostat housing only.