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Home/Automotive/Car Parts/Engine & Engine Parts/Cooling & Heating Systems/Engine Cooling & Heating/Coolant Temperature Sensors
Water Coolant Temperature Sensor Qiilu Coolant Water Gauge Temp Sensor for Merfor Cruiser 806490T Sierra 18-5897 Mallory 9-42400 — image 1
Coolant Temperature SensorsQiilu✓ In stock

Water Coolant Temperature Sensor Qiilu Coolant Water Gauge Temp Sensor for Merfor Cruiser 806490T Sierra 18-5897 Mallory 9-42400

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$6.59
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About this item
  • Comprehensive Compatibility: This sensor is compatible with various models and brands, reinforcing its versatility. It effectively replaces multiple part numbers, including Mercury Mercruiser 806490T, Sierra 18-5897, and Mallory 9-42400, ensuring that you find the right component for your needs.
  • Pretested Reliability: This water temperature sensor has been pretested to ensure stable performance and high reliability. Built to meet or exceed OEM specifications, it guarantees accurate readings for your engine, enhancing overall safety and efficiency.
  • Fitment: Designed according to original factory specifications, this sensor offers a perfect fit for various marine applications. It serves as a direct aftermarket replacement for Mercury Mercruiser 806490T, Sierra 18-5897, and Mallory 9-42400, making installation seamless with no modifications required.
  • Construction: Constructed with high-quality metal, this water temperature sensor is both durable and long-lasting. The robust design ensures it can withstand harsh marine environments, providing consistent performance over time, which is essential for maintaining engine health.
  • Easy Installation: Installation is straightforward, allowing for quick and easy replacement of the original sensor. This user-friendly design enables boat owners to make the switch without hassle, although professional installation is always recommended for optimal results.
Product details
Brand
Qiilu

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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