SKU: 51082066027

8M0139434 Mercury Marine Quicksilver Thermostat / 265G

Sale price$28.75 Regular price$31.95
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

8M0139434 Mercury Marine Quicksilver Thermostat / 265G8M0139434 265G Thermostat Fits Mercury 15hp and 20hp EFI 4 stroke outboards (serial No. 0R833820 and above) Self cleaning design allows cooling system contaminants to flush through closing surfaces Calibrated for proper cooling system temperature response Self cleaning design allows cooling system contaminants to flush through closing surfaces. Easy to replace with common tools See your owner's manual for removal of non functioning thermostat and

8M0139434 / 265G

Thermostat

  • Fits Mercury 15hp and 20hp EFI 4-stroke outboards (serial No. 0R833820 and above)
  • Self-cleaning design allows cooling system contaminants to flush through closing surfaces
  • Calibrated for proper cooling system temperature response
  • Self-cleaning design allows cooling system contaminants to flush through closing surfaces.
  • Easy to replace with common tools
  • See your owner's manual for removal of non-functioning thermostat and replacement of new thermostat
  • Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive
  • The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original equipment replacement engine parts, oils, and accessories, but also works to serve all original equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection, and peace of mind. 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51082066027

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4.8 ★★★★★
Based on 9 reviews
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Verified Purchase
Tommy Knapp
Birmingham, US
★★★★★ 1
Unfinished product - doesn't work - waste of money
in order to use this as an installation tool the directions tell you to drill a hole through the 2 inch steel rod..... either this hole should already be drilled, or this should not be advertised as an installation tool..... it will not install any bearings without extensive modification and requires the use of a drill press or a lathe. very dissatisfied that I now have to buy ANOTHER tool just to finish this job because this one doesn't do what it's described to do.... piece of junk... typical amazon garbage.... this is why I haven't used amazon in over a year... they rip you off with garbage.... I should have known better .... don't buy this junk .... Now they say 20 -30 days to get my refund .... Don't waste your time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
B
Verified Purchase
Beach guy
Whiting, US
★★★★★ 5
Good tool, but must be hand drilled to accept bearing installation cup
Good tool, but you have to drill a hole in the bearing installation rod to accept the cross bolt that locks the bearing installation cup onto the rod.
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Reviewed in the United States on January 23, 2023
A
Verified Purchase
Andrew drevdahl
West Palm Beach, US
★★★★★ 5
Worked well
Worked well
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Reviewed in the United States on October 31, 2025
A
Verified Purchase
axlr8or
Lexington, US
★★★★★ 2
I'm not sure what they're selling.
Gimbal extractor works. One of these guys needs to come down here and show me how the installer works. There is a driver for the bearing with pin but the driver rod itself has no hole like shown in the picture. How do you miss that?
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Reviewed in the United States on October 13, 2024
A
Verified Purchase
Antonio Frontera
Fort Morgan, US
★★★★★ 5
Buen producto
Size: 10FT, Style: 16AWG-3C
Buen producto, cumple con su propósito
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026

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