WHFZN Fuel Pump for Kawasaki FS730V FX751V FX801V FX850V FXT00V - Direct-Fit OEM-Style Replacement

WHFZN 49040-0801 is a direct-fit replacement fuel pump designed to restore reliable fuel delivery on a wide range of Kawasaki small engines.

If your Kawasaki-powered mower, generator, or utility vehicle is showing signs of inconsistent fueling, a worn or failing pump is often the culprit. The WHFZN 49040-0801 fuel pump is engineered to match OEM dimensions and mounting points for many FS, FX, FH and FD series Kawasaki engines, making it an easy service item for DIY mechanics and professional technicians alike. This product replaces several OEM part numbers and covers a broad list of Kawasaki models so you can get back to work with minimal downtime.

Which Kawasaki engines will this WHFZN pump fit?

This pump is compatible with numerous Kawasaki small-engine families, including FS, FX, FH and FD lines. It is built to align with the factory inlet/outlet positions and bolt pattern for the engines listed below.

• Fits FS730V, FX751V, FX801V, FX850V, FXT00V engines.
• Compatible with FD731V and many FH-series engines such as FH381V, FH430V, FH451V, FH500V, FH531V, FH541V, FH580V, FH601D and FH601V.
• Also supports FH641D/V, FH661V, FH680D/V, FH721D/V, FH770D and other FD/FH/FX models.
• Replaces OEM numbers 49040-2075, 49040-7001, 49040-0769 and replaces part number 49040-0801 for straightforward swaps.

How do I install the WHFZN 49040-0801 fuel pump?

Installation is straightforward for anyone comfortable with basic small-engine maintenance. The pump uses the same mounting footprint and hose connections as factory units, which keeps the replacement process simple.

• Disconnect battery and drain or clamp fuel lines before removal.
• Unbolt the old pump, note hose routing and vacuum/pressure line orientation.
• Fit the WHFZN pump, tighten mounting bolts to factory torque, reconnect hoses and check for leaks.
• Start the engine and inspect for steady fuel flow and normal idle behavior.

What performance and durability can I expect from this replacement pump?

The WHFZN unit is manufactured to meet functional standards common to OEM pumps, offering dependable fuel flow for everyday lawn-care and light commercial tasks. It’s intended as a like-for-like replacement rather than an upgraded high-performance aftermarket component.

• Engineered to match OEM flow and pressure characteristics for the covered models.
• Durable housing and internal components for consistent operation under typical conditions.
• Suitable for seasonal maintenance or emergency replacement to reduce downtime.
• Not intended for fuel types or additives outside manufacturer engine specifications.

Who is this for? Operators of Kawasaki-powered equipment, independent mechanics and service shops will find the WHFZN 49040-0801 fuel pump useful when restoring proper fuel delivery on compatible machines. It’s a practical option for those who need a cost-effective, direct-fit replacement that follows original mounting and connection patterns. If you maintain lawn mowers, compact utility vehicles, or small engines that list the referenced OEM part numbers or model families, this pump delivers a quick path back to reliable operation without custom modifications.