New Quantum QFS-158 – REPLACES Walbro F20000158 / F20000158G3 – 90hp Optimax Direct Injection

QFS-158 is a high-pressure fuel pump replacement for Walbro F20000158 and fits a wide range of Mercury Marine Optimax outboards from 75HP to 300HP, including models from 2003–2016. Designed to replace Mercury OEM part number 888725T02, this pump is built for long-term marine performance. Please check the Fitment tab to confirm compatibility with your specific model.

Unlike the Walbro F20000158, which typically carries only a one-year warranty, QFS-158 is backed by Quantum’s lifetime warranty, providing unbeatable peace of mind for boaters and marine technicians alike.

Whether you’re replacing a failed unit or proactively upgrading, QFS-158 ensures consistent high-pressure fuel delivery, critical for Optimax DFI engines. Built with corrosion-resistant materials and ethanol-safe internals, this pump thrives in harsh marine environments.

FEATURES & BENEFITS:

• Superior Performance: Delivers OEM or better performance, ensuring optimal fuel delivery for enhanced engine efficiency.
• Enhanced Durability: Constructed with upgraded polymers, brushes, and commutators to withstand various fuel blends and extend service life.
• Corrosion Resistance: Features a coated, corrosion-resistant case to minimize seizing during periods of non-operation.
• Quiet Operation: Specifically designed for quiet operation, reducing noise for a more enjoyable ride.
• Easy Installation: Designed as a drop-in replacement for a straightforward installation process.
• Ethanol Compatibility: Compatible with modern ethanol-infused pump gasoline, ensuring reliable performance with contemporary fuel types.

THE IDEAL REPLACEMENT FOR OEM #: 888725T02, F20000158

Package Includes: Fuel Pump