NGK DPR8EA-9 Spark Plug – 4929

NGK Standard spark plugs are engineered for long life and optimum performance. The DPR8EA-9 features a trivalent metal plating that provides superior anti-corrosion and anti-seizing properties, ensuring the plug remains easy to remove even after thousands of miles of heat cycles. With a corrugated rib design to prevent flashover and a pure alumina silicate ceramic insulator, this plug delivers a consistent spark in the harshest off-road conditions.

Features: 

• Copper Core Technology: Deeply inserted copper core aids in heat dissipation, preventing the plug from overheating while maintaining excellent electrical conductivity.

• Trivalent Metal Plating: The silver-colored finish eliminates the need for anti-seize and protects the threads from the moisture and debris common in dual-sport riding.

• Cold-Rolled Threads: Precision threads prevent cross-threading and damage to cylinder heads during installation.

• Corrugated Ribs: Prevents electrical "leakage" or sparking between the terminal and the shell (flashover), ensuring the energy reaches the combustion chamber.

• Zinc-Chromate Coating: Provides a durable barrier against rust and corrosion.

Specs:

• Thread Size: 12mm x 1.25mm
• Reach: 19mm (3/4")
• Hex Size: 18mm
• Heat Range: 8 (NGK scale)
• Electrode Material: Nickel Alloy
• Resistor Plug: Yes
• Gap: 0.9mm (0.035")
• NGK Part Number: 4929

Fitment:

• 1999–2026 – Honda XR650L

Always verify fitment with your motorcycle’s
service manual before installation.

Part Number: 4929