1Pc Spark Plug B7HS 5110 for Yamaha 2 Stroke 15HP Outboard Engine Features: and super quality aftermarket Outboard Engine Spark Plug. Replacing manufacture part number for reference: B7HS 5110. Direct and great replacement for the old and broken one, perfectly match to the original outboard. Feature high melting point, higher fuel efficiency and more economical fuel use. Generate electric spark to help make the engine work, codetermine engine performance to a large extent. Professional workmanship, stable performance, lightweight and portable design. Easy installation, specially designed for Yamaha 2 Stroke 15HP Outboard Engine. Specifications: Condition: Manufacture Part Number: B7HS 5110 Material: CNC aluminum alloy Color: Shown as picture Package Weight: Approx.50g/1.8oz Fitment: for Yamaha 2 Stroke 15HP Outboard Engine Package List: 1 * Outboard Engine Spark Plug Note: 1. Please carefully ensure the fitment before making a purchase. Thanks! 2. Easy to install, but professional installation is highly recommended!