NEWHOW Ignition Coil for Sea-Doo 717–951 Carb Engines — Replaces 278000383/278001130, Sealed Corrosion-Resistant

NEWHOW ignition coil 278000383 / 278001130 is a direct-fit replacement coil for carbureted Sea-Doo personal watercraft and select Challenger jet boats, restoring reliable spark and smoother running.

If your Sea-Doo from the 1995–2005 era is showing signs of weak spark — such as hard starting, rough idle, misfires, or sudden stalling — this coil is manufactured to match OEM form, fit, and function. Built with a sealed, corrosion-resistant housing for marine conditions, it replaces OEM numbers 278000383 and 278001130 to bring back consistent ignition performance on common 2-stroke carbureted engines (717, 720, 787, 800, 951).

Which Sea-Doo models and engine types does this coil fit?

This NEWHOW coil covers a broad lineup of Sea-Doo PWC and one Challenger jet boat model across the listed years. It is designed for carbureted 717–951 engines and matches the original mounting and electrical connectors.

• Sport and performance models: GS, GSX, GTI, GTI LE, GTS, SP, SPX, XP
• Touring models: GTX, GTX LTD
• Jet boats: Challenger 800 (notably 1996–1997)
• Compatible with OEM part numbers 278-000-383 and 278-001-130

How will installing this coil affect symptoms like misfires and poor acceleration?

Replacing a failing coil can eliminate intermittent spark loss that causes misfires, hesitation, and reduced throttle response. By restoring proper high-voltage delivery to the spark plug, the engine can restart easier and run more smoothly under load.

• Reduces misfire and rough idle frequency
• Improves throttle response and acceleration consistency
• Helps prevent stalling and backfiring linked to weak ignition
• Restores dependable starting behavior

Is the NEWHOW coil simple to install, and what should I check before buying?

Installation is straightforward for anyone comfortable with basic PWC maintenance: disconnect battery, remove spade connectors and plug wires, swap coils, and reconnect. Before purchase, verify the old coil’s connector style and part number to ensure compatibility.

• Confirm your old coil has two separate spade terminals (not a single multi-pin plug)
• Match your OEM number to 278000383 or 278001130
• Basic hand tools required; no special programming needed
• Refer to a service manual for torque specs and safety steps

What construction features help this coil survive marine conditions?

The unit is built with marine durability in mind: a sealed housing and corrosion-resistant materials protect internal windings from moisture and salt. That robustness helps maintain spark quality despite vibration and exposure common to boats and PWCs.

• Sealed enclosure to resist water intrusion and salt spray
• Corrosion-resistant terminals and mounting points
• Designed to meet or exceed original ignition output specs
• Includes a 1-year warranty for replacement coverage

Who this is for: Owners and technicians of Sea-Doo PWCs and Challenger jet boats (1995–2005) who need a dependable, direct OEM-replacement ignition coil. It’s intended for riders experiencing ignition-related drivability issues on carbureted 717–951 engines, or for anyone performing preventive maintenance to avoid unexpected failures on the water.