Sierra 18-79809 Fuel Filter (Replaces Yamaha 6P3-24563-00-00) for Yamaha F150–F300

The Sierra 18-79809 is a replacement fuel filter equivalent to Yamaha’s 6P3-24563-00-00 (6P3 series filters) for newer high-power outboards. After 2006, Yamaha introduced this style of filter in engines F150–F300 (including VZ and HPDI versions), and Sierra offers the same compatibility at a more affordable price. The 18-79809 filter provides excellent filtration with an approximately 27-micron element – fine enough to capture harmful particles yet large enough in surface area to allow the high fuel flow demanded by big V6/V8 engines. It installs in the stock filter bowl (typically marked with “6P3”) with no modifications. The form and fit match the OEM filter, making replacement quick and trouble-free. By using this aftermarket filter, you ensure your engine is protected while saving on maintenance costs. Be sure to follow the manufacturer’s recommended change intervals – usually annually or by engine hours – to keep your engine in top condition.

Use Cases & Recommendations (EN):

• Intended for Yamaha 150–300 HP outboards (four-stroke V6 3.3L/4.2L and V8 5.3L models from 2006 onward) – ideal for offshore fishing boats, large RIBs, and high-performance speedboats that demand flawless operation under heavy loads
• An excellent choice for owners looking for cost-effective maintenance: the Sierra 18-79809 delivers the same functionality as the original Yamaha filter. It’s recommended to replace the filter before each peak season and to keep a spare on board for long trips