NGK Mercury Spark Plug - 827858Q

Features:

• The NGK Spark Plug is the workhorse, at the heart of smooth-running engines around the world
• OEM Quality
• Consistent Performance
• Plug of Choice in Millions of Marine Engines
• The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling
• Triple-Gasket Sealing Process
• This spark plug features a triple gasket sealing process that eliminates fuel leakage
• It also includes a solid copper core that provides superior heat dissipation and conductivity
• This spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability
• It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head

Applications:

• Mercury Outboards
  • 9.9 HP 4-Stroke Outboards
    • U.S. Serial Numbers 0G760300 and higher
• Yamaha Models F15C and F20 Outboards
• Yamaha Model F25 and T25 Outboards

Specifications:

• Thread diameter: 12 mm
• Thread reach: 19 mm
• Seat type: Flat
• Hex size: 18 mm
• Tip configuration: Projected
• Construction: Special design
• Terminal type: Threaded-Terminal

Cross Reference for DPR6EA-9:

• AC Delco R121XLS
• Accel 882
• Autolite 4164
• Autolite XS4164
• Beck Arnley 176-5230
• Bosch XR8DC
• Bosch XR4CS
• Bosch Stock 7701
• Brisk BR15YC
• Champion RA8HC
• Champion RA6HC
• Champion Stock 809
• Denso X20EPR-U9
• Denso X20EPRU9
• Denso Stock 4125
• General Motors 5614066
• Honda 98069-56916
• Honda 98069-56911
• Kawasaki E92070-1138
• Mercruiser 33-827858
• Motorcraft HG2C
• Motorcraft Stock 87
• NGK Stock 5531
• Prestolite 12G2,12G3
• Triumph T1296999
• Triumph 1296999
• Yamaha 94701 00375

IMPORTANT: This chart is furnished as a guide only. Certain design differences may exist between this spark plug and another manufacturers and heat ratings can also vary. Always refer to the Manufacturer's application data to select the recommended spark plug for your specific engine

Note: There are more outboard motor applications for this spark plug that are not listed here. See your Owner's Manual to confirm compatibility.