Description
Quicksilver 14586 120 Degree F Thermostat for Select Mercury Outboards
The Quicksilver 14586 Replacement Thermostat is a 120°F thermostat designed for select Mercury 2-stroke and 4-stroke outboards. Built with corrosion-resistant stainless steel and calibrated for proper cooling system temperature response, this thermostat helps maintain correct operating temperature on compatible Mercury outboard engines.
Key Features
- Quicksilver replacement thermostat
- Part number: 14586
- 120°F thermostat
- Fits select Mercury 6HP to 90HP 2-stroke and 4-stroke outboards
- Also fits additional listed Mercury 100HP to 275HP 2-stroke applications by serial number
- Corrosion-resistant stainless steel construction for increased service life
- 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
- Thermostat only; additional seals or gaskets may be required
Fitment / Product Details
- Brand: Quicksilver
- Part Number: 14586
- BU Part ID: 14586
- Product Type: Replacement thermostat
- Temperature Rating: 120°F
- Application: Select Mercury outboard cooling system thermostat applications
- Engine Types: Select Mercury 2-stroke and 4-stroke outboards
- Primary HP Range: Select 6HP to 90HP applications
- Additional Listed HP Range: Select 100HP, 115HP, 125HP, 225X EFI ProMax, and 250/275HP applications by serial number
- Material: Stainless steel
- Assembly Location: Cooling system / thermostat housing area
- Brand Store Category: Parts
- Brand Store Subcategory: Thermostats
- Country of Origin: US
- Prop 65: No
- Packaged Quantity: 1
- UPC: 745061112643
- Eaches UPC: 745061112643
- Package Dimensions: 1.25 in L x 0.8 in H
- Package Weight: 0.004 lb
- Fitment Note: Match part number 14586 to your Mercury outboard model, horsepower, serial number, thermostat temperature requirement, cooling system diagram, owner’s manual, or service manual before ordering.
Expanded Fitment
- 6-9.9HP 2-Stroke: Serial range 0A197112-0T999999
- 10HP Magnum / Marathon / Sea Pro: Serial range 0D038000-0T979999
- XR10: Serial range 0D038000-0T979999
- 15HP Mercury / Marathon / Sea Pro: Serial range 0A197112-0T999999
- 20HP 2-Cylinder: Serial range 0A730007-0T979999
- 20 Jet: Serial range 0G044027-0T999999
- 20-25XD 2-Cylinder: Serial range 6443973-0B238463
- 25HP 2-Cylinder: Serial range 0T980000-0T999999
- 25HP Mercury / 25 Marathon / Sea Pro / Super 15 2-Cylinder: Serial range 0G044027-0T979999
- 30-40HP 2-Cylinder: Serial range 0G055314-0G760299
- 40HP 4-Cylinder Carb: Serial range 0T178500-0T598999
- 40-60HP 4-Cylinder EFI: Serial range 0T178500-1C453839
- 45 Jet: Serial range 0D000750-0G589999
- 50-60HP 3-Cylinder: Serial range 0D000750-0G589999
- 65 Jet: Serial range 0D283222-0T999999
- Formula 60: Serial range 1C104574 and up
- 75-90HP 3-Cylinder: Serial range 0D283222-0T999999
- 100HP 4-Cylinder: Serial range 0A722297-0G965520
- 115HP 4-Cylinder: Serial range 0C100000-0T979999
- 125HP 4-Cylinder: Serial range 0D283222-0T999999
- 225X EFI ProMax: Serial range 0T430254-0T819605
- 250/275HP: Serial range 0C101891-0T979999
Why You Should Buy
- Correct Quicksilver 120°F thermostat for applications requiring part number 14586
- Designed for select Mercury 2-stroke and 4-stroke outboard cooling systems
- Stainless steel construction helps resist corrosion in marine environments
- Calibrated to provide proper cooling system temperature response
- Self-cleaning design helps contaminants flush through closing surfaces
- Useful for replacing a stuck, corroded, missing, or non-functioning thermostat
Common Applications
- Mercury 6HP to 30HP 2-stroke thermostat replacement
- Mercury 40HP to 60HP 4-stroke thermostat service
- Mercury 65HP to 90HP 2-stroke cooling system maintenance
- Mercury Jet, Marathon, Sea Pro, Super 15, XR10, Formula 60, and ProMax thermostat applications where specified
- Outboard cooling system temperature control service
- Applications requiring Quicksilver 14586 thermostat
FAQ
- What is Quicksilver 14586? Quicksilver 14586 is a 120°F replacement thermostat for select Mercury outboard cooling system applications.
- What temperature is this thermostat? This is a 120°F thermostat.
- What horsepower range does this fit? It primarily fits select 6HP to 90HP Mercury 2-stroke and 4-stroke outboards, with additional listed applications up to 275HP by serial number.
- What engine types does this fit? This thermostat fits select Mercury 2-stroke and 4-stroke outboards where part number 14586 is specified.
- Is this thermostat stainless steel? Yes. It uses corrosion-resistant stainless steel for increased service life.
- Are seals or gaskets included? This listing is for the thermostat only. Additional seals or gaskets may be required.
- Is this easy to replace? Yes. It can be replaced with common tools when following the correct owner’s manual or service manual instructions.
- What is the UPC? The UPC is 745061112643.
- Does this item have a Prop 65 warning? No. The provided Prop 65 value is No.
- How should I confirm fitment? Match part number 14586 to your Mercury outboard model, horsepower, serial number, thermostat temperature requirement, cooling system diagram, owner’s manual, or service manual before ordering.