Description
Product Overview
The WEITARI Water Temperature Switch is an automatic, panel‑mount sensor engineered for marine engines. Constructed from high‑quality ABS plastic with a chrome‑finished exterior, the unit houses stainless‑steel contacts that resist corrosion in harsh salt‑water environments. It operates on a normally open circuit, delivering a clear signal when water pressure reaches the preset threshold. Compatibility spans Mercruiser in‑board (1998), out‑board (2006‑2010), and sterndrive (1998‑2008) engines, making it a versatile replacement part.
Usage
Ideal for boat owners, marine technicians, and DIY enthusiasts, this switch monitors engine cooling water pressure to prevent overheating. Install it in the engine compartment’s control panel, connect the female‑to‑male connector, and the automatic touch control will alert you to low water flow. Suitable for both recreational and commercial vessels, it ensures safe operation during long voyages or short trips.

Why Choose Us
WEITARI guarantees precision engineering and a 12‑month warranty. Each unit undergoes rigorous testing for leak‑proof performance and accurate pressure response. Our replacement part matches OEM specifications (part numbers 8M6000623, 8818790, 8818793, etc.), ensuring a perfect fit without modifications. Fast shipping and responsive Amazon messaging support further enhance customer confidence.
Key Features
- Automatic touch‑control operation for instant pressure alerts
- Stainless‑steel contacts provide superior corrosion resistance
- Fits a wide range of Mercruiser engines (1998‑2010)
- Durable ABS plastic housing with chrome finish for marine durability
- Easy panel‑mount installation with female‑to‑male connector
FAQ
Is this switch compatible with my 2005 Mercruiser out‑board?
Yes, the switch supports Mercruiser out‑board models from 2006 to 2010. For 2005 units, verify the exact part number; most older models share the same connector and sensor specifications.
How does the automatic touch control work?
The sensor detects water pressure changes and automatically closes the circuit when the preset threshold is reached, sending a signal to the engine control unit without manual intervention.
Can I install the switch myself?
Installation is straightforward for anyone with basic marine electrical knowledge. Mount the unit in the panel, connect the female‑to‑male connector, and secure the screw terminals. Detailed instructions are included.
What warranty does WEITARI offer?
Each switch comes with a 12‑month limited warranty covering defects in materials and workmanship. Contact us via Amazon Message for any warranty claims.
Does the switch require any calibration?
No additional calibration is needed. The factory‑set pressure threshold is calibrated for standard Mercruiser engine cooling systems.




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