SIERRA Mercury / Mariner 70-125 HP Thermostat Kit, 120°F – 18-3569

Description

SIERRA Mercury / Mariner 70-125 HP Thermostat Kit, 120°F – 18-3569

Sierra 18-3569 is a Thermostat kit engineered for the specified marine application. Mercury/Mariner 70-125 HP two-cycle outboards, generally 1987 and newer, using Mercury 803061T1.

• 120°F thermostat kit for specified Mercury/Mariner 70-125 HP two-stroke outboards.
• Catalog application is generally 1987-and-newer models within the listed horsepower range.
• Replaces Mercury 803061T1 and cross-references GLM 13124 and Mallory 9-43155.
• Restores thermostatic control of engine cooling-water flow at the specified operating calibration.
• Verify engine serial number and thermostat-housing configuration because horsepower alone does not determine fitment.

Fitment for marine engine and drive service parts can vary by model, serial number, gearcase, cooling configuration and prior component supersessions. Compare the original OEM number and physical configuration before installation, and renew related seals, locking hardware or adjacent wear items when their condition requires it.

Specifications

• Manufacturer: Sierra
• Part Number: 18-3569
• Part Type: Thermostat kit
• Application: Mercury/Mariner 70-125 HP two-cycle outboards, generally 1987 and newer, using Mercury 803061T1.
• Temperature Rating: 120°F (approximately 49°C)
• Engine Range: 70-125 HP, 2-cycle
• Typical Model Years: 1987 and newer

Interchange / OEM References

• GLM: 13124
• Mallory: 9-43155
• Mercury Marine: 803061T1