It's generally recommended to replace the fuel filter cartridge insert every 100 hours of operation or annually (whichever comes first) in the Mercury Racing SST-200, 200XS, 300XS Optimax and other Direct Fuel Injected (DFI) 2-stroke and Verado 4-stroke Mercury Marine Outboards.
 
The Buckshot Racing #77 Fuel Filter Cartridge Insert plays a crucial role in the performance and longevity of a Mercury outboard engine.
 
Its primary functions include:
 
Filtering Contaminants: The fuel filter traps dirt, debris, water, and other impurities that may be present in the fuel. This prevents these contaminants from entering the engine's fuel system, which can cause damage or reduce efficiency.
 
Protecting the Fuel System: By filtering out impurities, the fuel filter helps protect sensitive components of the fuel system, such as fuel injectors, pumps, and regulators, from wear and damage. This can extend the life of these parts and ensure the engine runs smoothly.
 
Maintaining Optimal Fuel Flow: A clean fuel filter ensures that the fuel flows freely and consistently to the engine, which is essential for proper combustion and performance. A clogged or dirty filter can restrict fuel flow, leading to issues like reduced power, poor fuel economy, or engine stalling.
 
Preventing Engine Problems: Regularly replacing the fuel filter helps prevent issues such as rough idling, misfires, and starting difficulties. It also reduces the risk of costly repairs due to fuel system damage.
 
Our Fuel Filter Cartridge Insert for fits all XS, Pro X, DFI, Optimax, 2-stroke outbaords and all Verado 200, 225, 250, 275, 300, 400 HP 4-stroke outboards. Any questions, call Mike directly at 714-697-1716.

Replaces Part Numbers:
18-7981, 24964, 8M0020349, 8M0060041, 8M0122423, 884380T, 884380T
 
Add Fuel Filter Tool replaces Mercury Marine / Quicksilver 91-896661 for just $7.