Keep your engine performing at its best with a GENUINE NGK DR8ES spark plug (Stock No. 5423). NGK plugs deliver reliable ignition, smooth throttle response, and long service life across motorcycles, ATVs, scooters, and small engines.

Technical Specs

• Part Number: DR8ES / 5423

• Thread Diameter: 12 mm

• Thread Pitch: 1.25 mm

• Reach (Thread Length): 19 mm

• Hex Size: 18 mm

• Seat Type: Gasket

• Material: Nickel

• Terminal: Solid Top

• Type: Standard Resistor Plug

Perfect for routine maintenance or replacing a fouled or worn plug.

🔧 FITMENT GUIDE (COMMON APPLICATIONS)

(Always verify with your specific engine before purchase.)

Motorcycles / ATVs / Powersports

• Suzuki GSX600F Katana

• Honda CB900C / CB1000C / CB1100F

• Various Yamaha, Kawasaki, and Suzuki mid‑range engines

• Off‑road motorcycles and utility ATVs using DR8‑series plugs

Small Engine / Specialty

• General powersports engines requiring DR8ES / 5423

• Older performance engines using DR8‑series nickel plugs

⭐ WHY CHOOSE NGK

• OEM‑grade reliability

• Strong, consistent spark

• Excellent anti‑fouling characteristics

• Durable nickel construction

• Trusted by technicians worldwide