Sierra 18-8866 Mechanical Fuel Pump for Mercury 4-Stroke Outboard

The Sierra 18-8866 is a high-quality mechanical fuel pump designed specifically for Mercury and Mariner 4-stroke outboard engines. Engineered to meet or exceed OEM specifications, this aftermarket replacement delivers reliable fuel delivery for a wide range of outboard applications.

Key Features:

• Produces 6-8 PSI fuel pressure for consistent engine performance
• Direct replacement for multiple Mercury OEM part numbers
• Mechanical pump design ensures dependable operation
• Meets or exceeds original equipment specifications
• Designed to withstand harsh marine environments

OEM Cross-Reference:

This fuel pump replaces Mercury/Mariner part numbers: 881862T, 881862T08, 892874T01, 899106T01, 8M0118177, and 8M0141827.

Applications:

Compatible with Mercury 4-stroke outboard engines including 30HP, 40HP, 50HP, and 60HP models. Verify part number compatibility before purchase to ensure proper fitment for your specific engine.

Sierra has over 50 years of experience manufacturing premium aftermarket marine parts, earning the trust of engine manufacturers and boat builders worldwide. Each Sierra component is built to restore full function and provide long-lasting performance in demanding marine conditions.