NGK B7HS Spark Plugs (5110) – 10 Pack – Genuine Japan‑Made Plugs

OVERVIEW

NGK B7HS spark plugs deliver reliable ignition and consistent power across a wide range of classic and modern two-stroke engines. These genuine Japan-made plugs utilize high alumina ceramics and a deep-seated copper core to manage heat effectively while preventing fouling during varied riding conditions. Supplied in a convenient 10-pack, this set offers durable ignition solutions that maintain performance across select dirt bike, dual-sport, and snowmobile applications.

ENGINEERING & PERFORMANCE

The B7HS design incorporates a wide operating heat range that prevents plug fouling caused by low-speed riding and guards against pre-ignition under heavy throttle loads. High alumina ceramic insulators enhance electrical insulation while efficiently dissipating heat away from the electrode area. A deep-seated copper core expands the thermal window for better versatility, and the nickel alloy tip increases service life. This combination ensures durable operation without voltage drops or inconsistent firing.

KEY FEATURES

• Spark plug configuration in a 10-pack supply
• NGK B7HS (5110) model identification
• Genuine Japan-Manufactured construction
• High alumina ceramic insulator for superior electrical insulation
• Deep-seated copper core widens the effective heat range
• Nickel alloy tip resists erosion for extended service life
• Versatile wide heat range reduces fouling risk at low speeds
• Thermal design helps prevent pre-ignition under high loads
• Improved heat dissipation maintains consistent combustion efficiency
• Detailed multi-model compatibility across decades of equipment

TECHNICAL SPECIFICATIONS

• Brand: NGK
• Part Name: B7HS Spark Plugs (5110)
• Component Type: Spark Plug
• Quantity: 10 Pack
• Material Composition: High alumina ceramics, deep-seated copper core, nickel alloy tip
• Country of Origin: Japan
• Supported Years: 1968 through 2017
• Compatible Trims: Select Ducati, ATI, Kawasaki, Ski-Doo, Suzuki, Toyota? No. Italian brands, Japanese brands, and Swiss snowmobile models as listed in fitment.

FITMENT

• ATI 50 MX (1999–2003)
• Atala Carosello 50 (1998)
• Ducati 500 GTL (1976–1978)
• Ducati 500 Pantah (1980–1983)
• Ducati 750 SS (1990)
• Ducati SD 900 (1980)
• Ducati Sport 500 (1978–1980)
• Italjet Dragster 50 (1998)
• Italjet Formula 125 (1997–1998)
• Kawasaki KD 100 M (1970–1975)
• Kawasaki KM 100 (1979–1981)
• Kawasaki KM 90 (1976–1978)
• Kawasaki KT 250 (1975)
• Kawasaki KV 100 (1976–1982)
• Ski-Doo Alpine 370 (1967, 1969, 1975–1977, 1980–1983, 1985–1987)
• Ski-Doo Alpine 370E (1967–1969)
• Ski-Doo Alpine 640ER (1969–1982)
• Ski-Doo Elan 250 Deluxe w/Slides (1974–1996)
• Ski-Doo Elan 250 Deluxe w/bogies (1974–1996)
• Ski-Doo Elan 250M (1973–1996)
• Ski-Doo Elan 250T (1973–1996)
• Ski-Doo Nordic 370 (1981–1983)
• Ski-Doo Nordic 371 (1969, 1982–1983)
• Ski-Doo Nordic 371 E (1969)
• Ski-Doo Olympic 370 (1968–1969)
• Ski-Doo Safari 370 (1984–1987, 1992–1994)
• Ski-Doo Super Olympic 370 (1968)
• Ski-Doo Super Olympic 370E (1968)
• Ski-Doo TNT 340 SS F/A w/Cleated Track (1969–1973)
• Suzuki GT 185 Adventurer (1973–1976)
• Suzuki GT 500 Titan (1973–1976)
• Suzuki Nomad 292 (1974)
• Suzuki RV 125 Tracker (1973–1977)
• Suzuki TS 125 Duster (1973–1975)
• Suzuki XR 400 (1974, 1984–2017)
• Triumph TR6 (1968–1972)
• Yamaha DT 80 (1974–1984)
• Yamaha LB 80 2H Chappy (1976)
• Yamaha MX 80 (1978–1982, 1995–2000, 2003–2005)
• Yamaha RD 200 (1974–1976)
• Yamaha TY 80 (1974–1977)

WHY RIDERS CHOOSE THIS

Riders select the NGK B7HS for proven ignition consistency across decades of air-cooled two-stroke designs where heat management is critical. The nickel alloy tip and deep-seated copper core extend service intervals and stabilize heat transfer, which directly reduces fouling when transitioning between idle and full-throttle operation. High alumina ceramic insulation prevents voltage leakage and supports reliable compression cycles under sustained load. Whether performing routine maintenance on a vintage snowmobile or keeping a hard-working dirt bike in peak condition, this plug delivers predictable starts and smooth power delivery without erratic behavior.