Description
Quicksilver 14586A3 120°F Thermostat Kit for Mercury Mariner 6-25 HP Outboards
The Quicksilver 14586A3 Thermostat Kit is designed for select Mercury and Mariner 6-25 HP 2-cycle outboard engines. This 120°F cooling-system service kit includes the thermostat and gaskets needed for compatible thermostat replacement, helping maintain proper engine operating temperature and reliable outboard cooling performance.
Key Features
- 120°F thermostat kit for select Mercury and Mariner outboard engines
- Fits various 6-25 HP 2-cycle outboard applications
- Includes thermostat and gaskets for cooling-system service
- Helps support proper engine warm-up and cooling-system regulation
- Designed for marine outboard cooling-system maintenance
- Ideal for replacing a worn, stuck, corroded, or service-aged thermostat
Fitment / Product Details
- Brand: Quicksilver
- Part Number: 14586A3
- Product Type: Thermostat Kit
- Application: Select Mercury and Mariner 6-25 HP outboard cooling-system applications
- Engine Types: Mercury / Mariner 2-cycle outboards
- HP Range: 6-25 HP
- Temperature Rating: 120°F
- Assembly Location: Outboard cooling system / thermostat housing
- Serial Ranges: Select applications include 6, 8, and 9.9 HP USA 0A197112 and up; 6, 8, and 9.9 HP BEL 9461526 and up; 15 HP USA 0B292414 and up; 15 HP BEL 9542620 and up; 15 SeaPro USA 0G044365 and up; 15 SeaPro BEL 9927000 and up; Super 15 USA 0B238464 and up; Super 15 BEL 9507381 and up; Super 15 CAN 0A730007 and up; 20 HP USA 0B114231-0T800749; 20 HP BEL 9467988-0P267999; additional 20 and 25 HP applications may apply by model and serial range
- UPC: Not provided
- Country of Origin: Not provided
- Package Dimensions: Not provided
- Package Weight: Not provided
- Prop 65: Not provided
- Supersedes / Replaces: Not provided
- Fitment Note: Match by part number, engine model, horsepower, serial number, thermostat temperature, cooling-system configuration, and service manual before ordering or installation.
What’s Included
- 120°F thermostat
- Thermostat gaskets
- Only components included by the manufacturer for part number 14586A3 are included
Expanded Fitment
- Mercury / Mariner 6 HP 2-cycle outboards, select serial ranges
- Mercury / Mariner 8 HP 2-cycle outboards, select serial ranges
- Mercury / Mariner 9.9 HP 2-cycle outboards, select serial ranges
- Mercury / Mariner 15 HP 2-cycle outboards, select serial ranges
- Mercury / Mariner 15 HP SeaPro 2-cycle outboards, select serial ranges
- Mercury / Mariner Super 15 2-cycle outboards, select serial ranges
- Mercury / Mariner 20 HP 2-cycle outboards, select serial ranges
- Mercury / Mariner 25 HP 2-cycle outboards, select serial ranges
Why You Should Buy
- Helps maintain correct outboard engine operating temperature
- Supports reliable cooling-system performance during normal operation
- Good replacement option during routine maintenance or cooling-system repair
- Includes the thermostat and gaskets needed for compatible applications
- Part-number-specific listing helps reduce fitment errors for small Mercury and Mariner outboards
Common Applications
- Thermostat replacement on select Mercury 6-25 HP 2-cycle outboards
- Thermostat replacement on select Mariner 6-25 HP 2-cycle outboards
- Cooling-system maintenance for small-horsepower outboard engines
- Repair for engines with suspected thermostat sticking, corrosion, overheating, or slow warm-up issues
- Preventive maintenance during water pump or cooling-system service
FAQ
- What temperature is this thermostat? This kit includes a 120°F thermostat.
- What engines does Quicksilver 14586A3 fit? It fits select Mercury and Mariner 6-25 HP 2-cycle outboard engines. Fitment varies by model and serial number.
- Does this kit include gaskets? Yes. This thermostat kit includes the thermostat and gaskets.
- Does this fit FourStroke engines? This listing is for various Mercury and Mariner 6-25 HP 2-cycle outboards. Verify by serial number and service manual before ordering.
- When should a thermostat be replaced? Replacement may be needed if the thermostat is stuck, corroded, damaged, causing improper warm-up, or contributing to cooling-system issues.
- Can this help with overheating? It may help if overheating is caused by a faulty thermostat, but the full cooling system should be inspected, including the water pump, passages, gaskets, and related components.
- How do I confirm fitment? Match part number 14586A3 to your engine model, horsepower, serial number, thermostat temperature, and service manual before installation.