The NGK DCPR8E-S (often listed as NGK 4179) is a premium nickel-alloy spark plug featuring a solid copper core. It is widely engineered as an Original Equipment (OE) direct replacement for powersports, marine watercraft, and small engine applications. Key Technical Specifications The part number breaks down into specific physical and performance dimensions based on the NGK decoding system:

• Thread Diameter: 12mm
• Thread Reach: 19.0mm (0.75 inches)
• Hex Wrench Size: 16mm (5/8 inch)
• Heat Range: 8 (Medium-cold plug optimal for high-rpm heat dissipation)
• Factory Pre-Gap: 0.028 inches (0.7mm)
• Terminal Type: Removable/Screw-on nut
• Core Material: 98% pure solid copper core for superior electrical and thermal conductivity

Common Vehicle Fitments This spark plug model is a highly popular factory-recommended choice for several utility and powersport lines:

• Sea-Doo Personal Watercraft: Compatible with almost all 4-stroke Rotax marine engines (such as the 4-Tec series, GTI, GTX, and Wake models), excluding 900 ACE and 300/325 HP variants.
• Rotax Aircraft Engines: Extensively used in light aviation powerplants like the Rotax 912 ULS and 914 engines.
• CFMOTO Vehicles: Standard fitment for ATVs and UTVs including the CFORCE 400/500/600/800/1000 and UFORCE utility side-by-sides.
• Can-Am Vehicles: Found on various Maverick, Commander, and older Spyder RT motorcycle packages.