Sierra 18-5760 582138 Power Pack 582556
Sierra 18-5760 582138 Power Pack 582556 — Product description
Upgrade your outboard's ignition system with the reliable Sierra 18-5760 power pack, a direct-fit replacement engineered for seamless performance. Designed to revive sluggish starts and erratic idling, this component tackles common electrical gremlins in marine engines, ensuring your time on the water stays uninterrupted and enjoyable.
Engineered for Marine Toughness
- Durable Construction: Built with high-grade epoxy encapsulation and marine-grade components to resist corrosion, moisture, and vibration—key culprits in saltwater environments.
- Precision Calibration: Matches OEM specifications for optimal spark timing, delivering crisp throttle response and efficient fuel burn across RPM ranges.
- Enhanced Heat Dissipation: Improved thermal management prevents overheating during extended runs, extending the life of your ignition system.
- Plug-and-Play Design: Exact wiring harness compatibility minimizes downtime, letting you focus on fishing or cruising rather than troubleshooting.
Perfect Fit for Popular Outboards
This power pack slots right into a wide array of 2-stroke Mercury engines, restoring factory-fresh reliability without custom modifications. It's the go-to solution for boaters facing weak spark or intermittent firing issues, breathing new life into powerheads that have seen years of hard use.
Common symptoms it resolves include hard starting after warming up, fouled plugs from poor spark, or sudden power loss under load—problems that plague older carbureted models exposed to ethanol-blended fuels.
Boost Reliability and Performance
Boat owners report smoother operation and fewer breakdowns after swapping in this Sierra unit. Its robust coil design handles the demands of propped-out planes and hole shots, while solid-state circuitry shrugs off humidity that dooms lesser packs. Pair it with fresh plugs and clean carbs for peak efficiency, turning a finicky engine into a dependable workhorse.
Pro Tip: Ethanol Defense
In today's fuel mix, phase separators and stabilizers are your friends. This power pack's resilience shines when combined with proper fuel management, preventing carbon buildup that stresses ignition components.
DIY Installation Made Simple
- Safety first: Disconnect battery and remove cowling for clear access.
- Unplug existing pack connectors—note wiring positions with photos if needed.
- Mount the new Sierra 18-5760 using factory holes; torque to spec to avoid flex.
- Reconnect wires securely, ensuring no bare strands touch.
- Reassemble, reconnect battery, and test-fire on muffs before trailering to the ramp.
Total time: Under 30 minutes for experienced wrenches. Always ground yourself to avoid static damage to electronics.
Long-Term Care for Lasting Spark
Regular freshwater flushes after brackish runs keep connections pristine. Inspect boots for cracks annually, and consider dielectric grease on terminals for extra protection. This proactive approach maximizes the Sierra pack's lifespan, often outlasting original equipment in harsh conditions.
Frequently Asked Questions
SKU: NVN-4002839
MPN: 18-5760
UPC: 808282259457
Technical specifications
| Brand | Sierra Engine Parts |
| Model | Sierra 18-5760 582138 Power Pack 582556 |
| SKU / MFR# | 4002839 |
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Frequently asked questions
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