NGK SPARK PLUGS BR9ES 5722 10 Pack

OVERVIEW

The NGK BR9ES spark plug delivers reliable combustion and consistent ignition timing across a wide range of performance powerplants. Manufactured with precision engineering, these ceramic plugs feature a deep-seated copper core and a durable nickel alloy electrode for extended service intervals. Designed for aggressive trail and competition use, they provide precise fitment and optimized firing characteristics for select Polaris, Arctic Cat, Kawasaki, Aprilia, and Honda snowmobiles and off-road vehicles.

ENGINEERING & PERFORMANCE

These plugs operate within a wide temperature window, effectively preventing both cold-fouling and hot preignition during heavy load riding. The high alumina ceramic insulator improves heat dissipation while maintaining stable electrical resistance under high-voltage stress. A deep-seated copper core extends the usable heat range, and the reinforced nickel alloy tip resists erosion for dependable starts season after season. Direct OEM-style replacement ensures correct reach for proper engine compression and fuel delivery.

KEY FEATURES

• Pack includes ten NGK BR9ES (5722) spark plugs
• High alumina ceramic insulator for maximum electrical isolation
• Deep-seated copper core stabilizes thermal transfer across operating temps
• Nickel alloy center electrode resists wear and prolongs life
• Broad heat range minimizes fouling and preignition risks
• Emission-tuned five-wire design suppresses electrical interference
• Exact OEM thread, reach, and seat dimensions
• Bolt-on installation for factory ignition system refresh

TECHNICAL SPECIFICATIONS

• Brand: NGK
• Part Name: BR9ES Spark Plug (5722)
• Component Type: Five-Wire Spark Plug
• Materials: High Alumina Ceramic, Copper Core, Nickel Alloy Tip
• Supported Years: 1983–2019
• Compatible Trims: Polaris Indy & WideTrak Sleds, Arctic Cat Panther & Puma Series, Kawasaki Jet Ski STX/Ultra, Aprilia 50cc Competition Quads, Honda CR80R & FourTrax

FITMENT

• Polaris Indy 550 EVO & Adventure Sled (2019)
• Polaris WideTrak & Voyageur 550 Trail Series (2019)
• Polaris Genesis 1200 & Virage 1200 TX (2000–2001)
• Arctic Cat Wildcat 700 Glacier EFI & Thundercat 900 (2018–2014)
• Arctic Cat Panther 580 & Puma 340 DLX (2017–1994)
• Kawasaki JH 1100 Ultra 130 DI & JH 1200 Ultra 150 (2000–2004)
• Kawasaki STX-R & STS Jet Ski Series (2002–2001)
• Aprilia RX 50 & RS 50 Competition Quads (2000–2004)
• Honda CR80R Motocross & TRX250R FourTrax (1983–1988)

WHY RIDERS CHOOSE THIS

Riders trust the NGK BR9ES because its specialized five-wire architecture eliminates radio noise while preserving instant throttle response. The copper-core insulation and broad thermal window keep the plug burning clean under extreme vibration and rapid altitude changes, which protects the stator and CDI from voltage spikes. Straightforward direct replacement restores original ignition timing and fuel economy without requiring tuning adjustments. This proven specification gives older trail machines the reliability they need for extended winter riding.