Part Number: WR6147
Motorcraft WR6147 Spark Plug Wire
Maintain strong ignition performance and dependable engine operation with the Motorcraft WR6147 Spark Plug Wire. Designed to meet OEM specifications, this ignition wire delivers consistent spark energy from the ignition system to the spark plug for smooth starts, responsive throttle input, and reliable performance under load.
Spark plug wires are a critical part of the ignition system, especially in high-demand marine environments where heat, moisture, and vibration can gradually break down insulation and reduce spark efficiency. A worn or damaged ignition wire can contribute to engine misfires, rough idle, hesitation, or difficult starting. Replacing aging ignition components helps restore proper combustion performance and maintain dependable engine reliability.
Manufactured using high-quality insulation materials, the Motorcraft WR6147 spark plug wire is designed to resist heat, electrical interference, and moisture exposure while maintaining reliable conductivity. Its OEM-style construction provides proper fitment and secure connection for compatible Ford-based engine applications.
Common Engine & Boat Fitments
The Motorcraft WR6147 spark plug wire is commonly used on select Ford-based marine engines, including:
- Indmar Assault 5.7L
- Indmar Monsoon 340
- PCM GT40
- PCM Excalibur 5.7L
- Pleasurecraft Ford 351 applications
- Ford 5.8L marine engine platforms
These engines are frequently found in:
Supra Models
- Supra Launch series
- Supra Sunsport models
- Supra Comp
- Supra Legacy
Moomba Models
- Moomba Mobius LSV
- Moomba Outback
- Moomba Mobius XLV
Nautique Models
- Ski Nautique
- Super Air Nautique
- Air Nautique
Additional applications may include Malibu, MasterCraft, and Correct Craft boats equipped with Ford-based marine engine packages.
The WR6147 wire is commonly used in marine ignition systems where reliable spark delivery and dependable combustion performance are essential for smooth engine operation and consistent power output.
Fitment may vary depending on engine year, distributor configuration, and ignition setup, so confirming compatibility with part number WR6147 before ordering is recommended.
Key Features
- Genuine Motorcraft OEM-quality spark plug wire
- Designed for reliable ignition system performance
- Heat- and moisture-resistant insulation construction
- Helps improve spark delivery and combustion efficiency
- Designed for Ford-based marine engine applications
- Secure OEM-style connections for dependable operation
Why Replace Spark Plug Wires?
Old ignition wires can weaken spark transfer and reduce overall engine performance. Replacing worn spark plug wires helps improve starting reliability, idle quality, throttle response, and fuel efficiency while reducing the risk of ignition-related performance issues.
If you’re servicing a Ford-based marine engine in a Supra, Moomba, Nautique, Malibu, or MasterCraft, the Motorcraft WR6147 spark plug wire delivers the reliable ignition performance and OEM-quality fit your engine depends on.