The NGK Spark Plug – B4H is a NGK motorcycle part or accessory for the application identified below. The confirmed fitment, construction, package and product reference details are gathered here to help prevent an incorrect purchase.

Before ordering, compare the exact part reference, dimensions, motorcycle model and model year with the component being replaced or upgraded.

• The NGK B4H is a hot-running standard plug for small-capacity and older-generation engines that need help staying clean at low load
• 14mm thread with a short 12.7mm reach
• Hot heat range 4 to help resist fouling on low-load, low-speed running
• Copper-cored centre electrode for dependable heat transfer
• Non-resistor construction typical of older ignition systems
• Popular choice for small commuters, scooters and utility engines
• Always match the plug code and reach to your manufacturer’s