Sierra 18-7401-9 Marine O-Ring Replacement Seal Gaskets & Seals

The Sierra 18-7401-9 is a precision-manufactured marine O-ring designed to provide a reliable, leak-free seal in a variety of marine engine and fuel system applications. Sierra International is a trusted name in marine replacement parts, and their O-rings are engineered to meet or exceed OEM specifications for fit, form, and function.

Crafted from high-quality elastomer material, this O-ring resists degradation from fuel, oil, and saltwater exposure — common challenges in demanding marine environments. It is an ideal replacement part for routine maintenance or repair on inboard and outboard marine engines.

Key Features:

• Meets or exceeds OEM specifications for a precise, reliable fit
• Resistant to fuel, oil, and saltwater corrosion
• Durable elastomer construction for long service life
• Designed for use in marine engine and fuel system applications
• Easy drop-in replacement for simplified installation

Sierra's 18-7401-9 O-ring is a dependable choice for marine technicians and boat owners looking to maintain peak engine performance and prevent costly fluid leaks.