SIERRA 18-5243 Distributor Cap

Compatible Engines

The original SIERRA distributor cap (catalog number 18-5243) is a critical component of the ignition system, engineered for reliability and precision. This part is designed for outboard and sterndrive engines, including popular MERCRUISER and VOLVO PENTA models with 4.3L displacement (4.3GXi/OSi V-6 series) paired with Alpha or Bravo transmissions. It features high-quality materials that ensure durability and proper spark distribution in harsh marine environments.

Please verify compatibility using the manufacturer's catalog number (18-5243) or OE number. If you have any doubts, contact our support team.

Installation and Maintenance

• Perfect Fit – guarantees compliance with factory specifications.
• Corrosion Resistant – material protected against moisture and salt.
• Easy Installation – replacement without specialized tools.
• Stable Operation – ensures consistent spark distribution.
• Availability – fast shipping from our warehouse.

We recommend cleaning the socket and checking the condition of high-tension wires during replacement. Using original SIERRA parts extends engine life.