MERCRUISER THERMOSTAT (118-3555)

The technologically innovative MERCRUISER THERMOSTAT (118-3555) uses bleed notches, check valves, and other features to remove air from the system. Use stainless steel pistons for a longer lifespan and more effective performance. For more effective operation, heat the brass guide and cover the motor piston. For added durability and strength, the spring frame is made of stainless steel and has channel construction. The engine can quickly reach its ideal operating temperature thanks to the stainless steel spring's precise working compression.

Key Features:

• Design of new equipment.
• Made with durable materials for long life.
• For easy operation, a stainless steel component has been constructed.
• It fits GM V-6 and V-8 engines with closed cooling from 1998 and later.
• GLM 13040, Mallory 9-43001, 9-43016, and Mercruiser Stern Drive 991551, 99155A1, and 99155T2 are all interchangeable.
• Rating for Temperature: 160 °F
• Every Sierra item is equal to or better than the original equipment component it replaces.

Specifications:

• SKU: 18-3555
• UPC: 030999316035
• Weight: 0.16 LBS
• Alternate Products SKU: "75-00408", "18-3555"
• Manufacturer Part Number (MPN): 118-3555

Temperature Rating: 160°F

This product replaces:

47-3555, GLM13040, 3-82409, AP408, AP409, 99155A1, 3099931603, 30999316035, 92-13040D, 9-43001, 9-43016