Description:

---

Sierra International 18-3642 Thermostat Kit

Sierra's 18-3642 Thermostat Kit is designed for use with Mercury/Mariner 40 HP (3 Cylinder) (s/n 1C049739 & Up) outboard engines. Includes (1) Thermostat and (1) Gasket per package. It is interchangeable with Mercury Marine 855676A1. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.

Product Features

• Designed for use with Mercury/Mariner 40 HP (3 Cylinder) (s/n 1C049739 & Up) outboard engines
• Includes (1) Thermostat and (1) Gasket per package
• Interchangeable with Mercury Marine 855676A1
• Each Sierra product meets or exceeds the original equipment part it replaces
• Fit specific, check part numbers to ensure proper fit

---

---

Open Box Condition Notice:

Items are in perfect working condition. Items may have some minor signs of use, and the original protective wrapping may be absent or the item may be repackaged. All accessories will be included.

Return Policy:

You may return any item purchased within 30 days of receiving the shipment.