Briggs & Stratton Mikuni-style Inline Fuel Pump 1/4" ID for 808492 808656 491922 – E10 Gas Compatible, Direct Replacement

This Rosotion OEM Briggs & Stratton Mikuni fuel pump (808492 / 808656 / 491922) is a direct-replacement inline pump designed to restore proper fuel delivery for small engines that accept a 1/4" inner-diameter fuel line.

If your mower, generator, pressure washer, or other Briggs & Stratton–powered equipment is suffering from weak fuel flow or a failing OEM pump, replacing it with a compatible Mikuni-style OEM unit like this one can get the engine running reliably again. This listing covers the Rosotion-branded fuel pump sold as an OEM Briggs & Stratton replacement and may replace multiple part numbers; confirm fitment with your model and serial data before purchasing.

How do I know this pump will fit my engine?

Compatibility depends on the engine model, spec/type number, and the original pump part number. This pump fits systems using a 1/4" inner-diameter fuel line and is listed as a replacement for OEM numbers including 808492, 808656, and 491922.

• Compare your original part number to the listed OEM numbers.
• Check your engine model, spec/type, and serial number against the seller's fitment guidance.
• Confirm fuel line inside diameter is 1/4" before ordering.

What are the installation essentials and mounting details?

Installation is straightforward for mechanically similar replacements: mount the pump where the factory unit sat, route the 1/4" fuel line to the inlet and outlet, and secure electrical or vacuum connections if applicable. Use appropriate clamps and avoid kinks in the line.

• Mount using the original bracket location or an equivalent secure point.
• Use 1/4" fuel hose and proper clamps for leak-free connections.
• Observe flow direction markings on the pump body during installation.

What fuel and line restrictions should I be aware of?

This unit is designed for conventional gasoline use and is not compatible with fuels containing more than 10% ethanol. Using higher ethanol blends can cause premature failure of seals and diaphragms.

• Recommended: gasoline with up to 10% ethanol (E10) only.
• Not recommended for E15, E85, or alternate fuels.
• Replace old or hardened fuel hoses to ensure compatibility and seal integrity.

What comes in the box and how can I verify part condition?

The product ships with a single fuel pump as shown in the primary product image. Inspect the pump for the correct inlet/outlet sizing, OEM markings, and any visible packaging labels to confirm it matches your expectations.

• Includes: (1) Rosotion OEM fuel pump (as pictured).
• Refer to the product images for spec labels and physical details.
• Contact the seller with your engine model and serial for additional confirmation.

Who this is for: This replacement pump is intended for owners and technicians servicing Briggs & Stratton–powered small engines who need a reliable, direct-replacement Mikuni-style fuel pump. It's appropriate for lawncare professionals, weekend DIYers, and repair shops that confirm compatibility using model/spec/type and OEM part numbers. If you are unsure about fitment, provide the engine model, spec/type number, and serial information before ordering to avoid returns.