Description
SIERRA 140°F Honda Outboard Thermostat – 18-3628-1
The Sierra 18-3628-1 is a 140°F (60°C) replacement thermostat for select Honda outboard cooling systems. It is designed as a direct replacement for Honda 19300-ZW9-003 and supersedes Sierra 18-3628, helping restore correct coolant-flow control and engine warm-up performance.
- Designed for select Honda outboard cooling systems
- Thermostat temperature rating: 140°F (60°C)
- Direct replacement for Honda 19300-ZW9-003
- Supersedes Sierra 18-3628
- Helps regulate coolant flow and maintain intended operating temperature
Specifications
- Manufacturer: Sierra
- Part Number: 18-3628-1
- Product Type: Thermostat
- Application: Select Honda outboard cooling systems
- Temperature Rating: 140°F (60°C)
- OEM Interchange: Honda 19300-ZW9-003
- Supersedes: Sierra 18-3628
- UPC: 808282371043

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