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This Priming Pump Assembly is an essential component for priming the fuel system on a range of Mercury Marine outboard engines
90 HP (2003–2017)
Carefully disconnect the electrical wiring harness and the vacuum hose from the old sensor
typically covering models made between 1990 and 2000
Thermostat – Fits Cummins MerCruiser QSD 2.8L & 4.2L (Replaces 8M0093561, 879194215) 440HP This Priming Pump Assembly isProduct Details This replacement Thermostat Fits Cummins MerCruiser QSD 2. 8L & 4. 2L Diesel Engines, ensuring your marine engine maintains the correct operating temperature for optimal performance and efficiency. It regulates coolant flow by opening at a precise 80C (176F) to prevent overheating and maintain stable conditions. It serves as a direct replacement for Mercury MerCruiser part numbers 8M0093561, 879194215, 879194233, and 39012036F.
