★★★★★ 5
Works as it should
Works as it should
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
Top Cover Mounted 2 Port Isolator/Diverter Valve Suitable for MF - Sparex Part S.5940
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Top Cover Mounted 2 Port Isolator/Diverter Valve Suitable for MF - Sparex Part S.5940Top Cover Mounted 2 Port Isolator Diverter Valve Sparex Part No. S. 5940 Enhance your machinery's performance with the Top Cover Mounted 2 Port Isolator Diverter Valve, designed for versatility and reliability. Featuring 3 8'' BSP ports, this valve is an ideal solution for various applications. Product Specifications Alternative to 5939 Brand Spenco Ports 3 8'' BSP Tariff Code 8481201090 Type 2 Port Isolator Diverter Valve Compatibility Information
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- Final sale items are not eligible for returns or exchanges.
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Based on 2155 reviews
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Product Reviews
★★★★★ 4
Four Stars
Just what I needed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2016
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024
★★★★★ 5
Fits 1988 Sea Ray V-135 2 stroke (Mercury)
For those of you with the 135 hp
mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.
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Reviewed in the United States on August 3, 2024
★★★★★ 5
fixed issue
stopped the overheat issue on my outboard!!!
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Reviewed in the United States on August 6, 2025
