Mercury MerCruiser Quicksilver Temperature Sensor 8M0205787
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Mercury Marine Temperature Sensor – 8M0205787
Monitor engine temperature accurately with the genuine Mercury Marine 8M0205787 Temperature Sensor. This OEM sensor measures engine coolant or cylinder head temperature and sends real-time data to the engine control module (ECM) or temperature gauge, helping ensure proper engine operation and preventing overheating.
Manufactured to Mercury Marine’s original equipment specifications, this sensor provides precise temperature readings for reliable engine management and early detection of cooling system issues.
Key Features
-
Genuine Mercury Marine OEM temperature sensor
-
Monitors engine coolant or cylinder head temperature
-
Sends temperature data to ECM and engine monitoring systems
-
Helps prevent overheating and potential engine damage
-
Built for marine engine environments
Part Details
-
OEM Part Number: 8M0205787
-
Product Type: Engine temperature sensor
-
Designed as a direct replacement for the factory-installed sensor.
Compatible Mercury Engines
Commonly used on select Mercury FourStroke outboard engines, including applications within:
-
3.4L V6 FourStroke engines
-
4.6L V8 FourStroke engines
-
Certain Verado and Pro XS outboard models
Fitment may vary depending on engine model and serial number range.
Important Compatibility Note
Sensors and electrical components can vary by engine model and production year. Always verify compatibility using the engine serial number to ensure the correct temperature sensor for your specific Mercury engine.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.