Sierra 18-8838-1 Spark Plug Wire Set for Mercruiser Stern Drives & Indmar Inboards

The Sierra 18-8838-1 is a premium replacement spark plug wire set engineered for distributorless 8-cylinder MerCruiser stern drive and Indmar inboard marine engines, including 8.1L applications. Designed to meet or exceed original equipment specifications, this wire set delivers reliable ignition performance in the demanding marine environment.

Key Features:

• Kevlar core construction for maximum durability and long service life
• Stainless steel wound conductor for maximum horsepower and engine performance
• Premium silicone jacketing and boots for superior high-temperature protection
• Superior RFI suppression to protect sensitive onboard electronics
• Corrosion-resistant stainless steel components built to withstand harsh marine conditions
• Distributorless ignition type — 8-cylinder fitment
• Set contains 8 spark plug wires

OEM Cross-Reference:

• Replaces Mercury Marine / MerCruiser: 84-881698
• Replaces Indmar: 756003
• Replaces Crusader: RK120019

Sierra is one of the most trusted names in marine engine parts, with over 50 years of experience producing high-quality ignition components engineered to withstand today's high-horsepower engine demands. All Sierra parts are backed by an industry-leading customer satisfaction warranty covering defects in workmanship and materials for the useful life of the product.