This usually indicates minor updates or revisions by the manufacturer for improved performance or material changes
A 140°F thermostat is standard for raw-water cooled marine engines because it keeps the engine warm enough for efficient combustion but cool enough to prevent salt and mineral deposits from building up in the cooling passages
9 4-Stroke All years 06192-ZW9-000 Power thrust model
It is designed for a broad range of 2-Stroke outboards from Mercury/Mariner (30-300 HP
Carefully separate the lower unit from the upper casing to access the water pump
Water Pump Impeller Kit – Fits Mercury Mariner 2-Stroke 3.5–9.8 HP (Replaces 47-89980T1, 47-89980Q1) 4.3L-8.2L This usually indicates minor updatesProduct Details This Water Pump Impeller Kit Fits Mercury Mariner 2 Stroke 3. 59. 8 HP (Replaces 47 89980T1, 47 89980Q1) is designed for a range of Mercury and Mariner 2 stroke outboard motors, including 3. 5 HP, 3. 6 HP, 3. 9 HP, 4 HP, 4. 5 HP, 7. 5 HP, and 9. 8 HP models manufactured between 1979 and 1986. Please verify your specific model and serial number before ordering. It serves as a direct replacement for multiple part numbers, including