NGK SPARK PLUGS DR7EA 7839 Spark Plug 10 Pack

OVERVIEW

The NGK DR7EA spark plug delivers precise ignition timing and consistent combustion for demanding trails. This 10-pack of performance spark plugs uses high-grade materials to maintain reliable starts and stable engine operation on your ATV. Engineered with a deep-seated copper core and high alumina ceramic insulator, this component provides durable electrical insulation and efficient heat dissipation specifically matched to the Yamaha YFM450 Kodiak platform.

ENGINEERING & PERFORMANCE

Designed for wide operating temperature stability, these spark plugs effectively manage combustion heat to prevent carbon fouling at lower speeds and stop pre-ignition during hard acceleration. The thick copper core extends thermal reach while the precision-ground nickel alloy center electrode ensures a sharp, reliable spark across varied operating conditions. High-alumina ceramic insulation resists electrical breakdown under heavy load, maintaining consistent voltage delivery straight to the cylinder head. Direct-mount geometry guarantees correct thread reach and gap spacing for immediate drop-in installation.

KEY FEATURES

• Pack contains 10 genuine NGK DR7EA (7839) spark plugs
• Wide operating heat range reduces fouling and pre-ignition risks
• Deep-seated copper core optimizes heat dissipation and thermal stability
• High alumina ceramic insulator provides superior electrical resistance
• Precision nickel alloy tip ensures long service life and consistent spark
• OEM-style direct replacement eliminates modifications or tuning
• Engineered for diverse trail conditions and aggressive riding styles

TECHNICAL SPECIFICATIONS

• Brand: NGK
• Part Name: DR7EA / 7839 Spark Plug
• Component Type: Spark Plug
• Construction Materials: High alumina ceramic insulator, copper core, nickel alloy tip
• Supported Years: 2018–2021
• Compatible Trims: YFM450 Kodiak 450, YFM450 Kodiak 450 EPS

FITMENT

• Yamaha YFM450 Kodiak 450 (2018–2021)
• Yamaha YFM450 Kodiak 450 EPS (2018–2021)

WHY RIDERS CHOOSE THIS

Riders rely on this NGK plug because it maintains steady combustion under heavy throttle and variable terrain, preventing hesitation and missed shifts. The integrated copper core and insulated ceramic body work together to regulate operating temperature, keeping the electrode clean when idling slowly and resistant to overheating during sustained climbs. Consistent voltage delivery translates to faster cranking turns and more reliable cold starts season after season. Because the threading, reach, and seat design match the factory specification exactly, riders avoid fitting issues and get dependable ignition performance without guesswork.