SIERRA 18-8813-1 Spark Plug Wire Set

Compatible Engines

The SIERRA 18-8813-1 spark plug wire set is a critical component of the ignition system, ensuring reliable high-voltage transmission from the coil to the spark plugs. This product is designed for outboard and sterndrive engines, including popular VOLVO PENTA units (e.g., series 250A, AQ120B, AQ131, AQ145A, AQ151A, BB140A, BB145A). Due to variations in engine configurations based on production year and market, compatibility must always be verified using the manufacturer's catalog number 18-8813-1 or the original OE number. If you are unsure about part fitment for your vessel, contact our customer support for professional verification.

Installation and Maintenance

Proper installation of spark plug wires is fundamental to engine efficiency. We recommend regular inspection of insulation and terminals to prevent spark loss and failure during operation.

• High heat resistance – insulation withstands extreme temperatures in the engine compartment.
• Optimal interference suppression – protects onboard electronics from electromagnetic interference.
• OE standard fit – guarantees seamless replacement without wiring modifications.
• Durable material – resistant to oils, greases, and saltwater moisture.

Choosing original parts or high-quality alternatives like SIERRA invests in water safety and extends engine longevity.