YAMAHA 2-Stroke Outboard Strainer 646-24251-01-00 OEM Fuel/Oil Filter Replacement — Genuine Fit, Debris Protection

The Yamaha 646-24251-01-00 strainer is a genuine OEM replacement part designed to protect and maintain the fuel system on compatible 2-stroke Yamaha outboard motors.

If your boat uses a 2-stroke Yamaha outboard, keeping fuel and oil flow free of debris is essential for reliable performance. This item is an original Yamaha-manufactured strainer (part number 646-24251-01-00), made to the company’s factory specifications so it fits and functions like the part it replaces. It removes particulates and helps prevent blockages that can harm engine operation, while matching the dimensions and materials Yamaha specifies for this application.

What does this Yamaha strainer do for my 2-stroke outboard?

The strainer captures dirt, rust, and other contaminants before they reach sensitive fuel or oil passages in the engine. It offers a simple mechanical filter point that reduces the chance of clogs and inconsistent flow, helping maintain smooth idling and throttle response.

• Traps particulate matter and sediment
• Prevents debris from entering fuel/oil lines
• Helps maintain steady fuel/oil delivery under load
• Reduces wear on downstream components

How do I know this part fits my Yamaha outboard?

This is an OEM Yamaha part with the official part number 646-24251-01-00; fitment is determined by your engine model and serial number. Using the exact Yamaha part ensures matching dimensions and connector interfaces so installation is straightforward and reliable.

• Check your engine’s parts manual or VIN/serial number
• Compare part number 646-24251-01-00 with your replacement list
• Ask a dealer or reference Yamaha online catalogs for compatibility
• OEM fit reduces need for aftermarket modification

How do I install and maintain this strainer?

Installation is typically simple and follows Yamaha’s service guidelines—often involving a secure clamp or housing and basic hand tools. Routine inspection and occasional cleaning or replacement will keep the system working optimally; replace the strainer if it appears damaged or excessively clogged.

• Follow Yamaha service manual instructions for your engine
• Disconnect fuel lines or housings carefully to avoid spills
• Inspect for tears, deformation, or heavy buildup before reuse
• Replace with genuine part for proper sealing and fit

Why choose a genuine Yamaha replacement instead of aftermarket?

Genuine Yamaha parts are manufactured to the original specifications set by the engine maker, ensuring the same dimensions, materials, and performance characteristics as the factory-installed component. That consistency lowers the risk of fitment problems and helps preserve warranty coverage and engine reliability.

• Factory tolerances for correct fit and sealing
• Materials chosen for marine environments and compatibility
• Reduced risk of premature failure versus unknown alternatives
• Easy cross-reference with Yamaha service documentation

Who is this for: boat owners, marine technicians, and Yamaha dealers who need a dependable, OEM strainer for 2-stroke outboard maintenance. If you maintain or repair Yamaha 2-stroke engines and want the assurance of a factory-made replacement for part number 646-24251-01-00 (also superseded by 646-24251-02-00 in some records), this genuine Yamaha strainer is intended to meet those needs with accurate fit and predictable performance.