YAMAKATO Huayi P27 27mm Carburetor for GX390/GX340 Clones 420cc Replacement with Fuel Shutoff and 3 Gaskets

The YAMAKATO Huayi P27 Predator 27mm carburetor is a drop-in replacement carb designed to restore reliable fueling for 389–420cc Honda and clone engines used in pressure washers, snow blowers, mini bikes and other small equipment.

This Huayi P27 carburetor is built to match common OEM dimensions and mounting points so it fits many GX340/GX390-style engines and popular clone models (Predator, Harbor Freight, Champion, Ducar, Duromax, Lifan and similar). It arrives as a complete unit with three mounting gaskets and a built-in fuel shutoff, offering a straightforward swap for machines that need better throttle response and consistent idling. Before installation, compare the pictures and measurements to your current carburetor to confirm compatibility.

Will this carburetor fit my Honda GX390 or a clone engine?

Yes—this P27 model is made to the common OEM footprint used on many 389–420cc single-cylinder engines. It accommodates engines with the 52mm center-to-center mounting hole spacing and a 30.5mm air intake.

• Compatible part numbers: 16100-ZF6-V01, 16100-ZH9-W21, 16100-ZE2-W71
• Works with GX340/GX390 Honda and clones such as Predator and Harbor Freight models
• Not intended for generator-specific carburetors—verify dimensions and throttle linkage

How easy is installation and what is included in the kit?

Installation is typically straightforward for anyone familiar with small-engine maintenance. The kit contains the Huayi P27 carburetor and three carb mounting gaskets to ensure a sealed fit when you replace the old unit.

• Preassembled carburetor ready for bolt-on replacement
• Three gaskets to match different housings and help prevent vacuum leaks
• Built-in fuel tap simplifies fuel shutoff during service or storage

What engines and equipment commonly use this carburetor?

This P27 carb fits a wide range of single-cylinder, air-cooled engines in the 337cc–459cc family produced by Honda and many clone manufacturers. It’s commonly used on pressure washers, snow blowers, tillers, trash pumps, mini bikes, ATVs and log splitters.

• Works with 337cc, 338cc, 339cc, 389cc, 419cc, 420cc, 439cc, 459cc variants
• Ideal for power equipment like pressure washers and snow blowers (confirm size first)
• Not suitable for most generators—check your generator’s carburetor design

What should I check before buying to ensure compatibility?

Measure your current carburetor and check mounting hole spacing, air intake diameter and throttle linkage type. Compare photos and part numbers to confirm you’re matching the correct P27 variant to your engine.

• Confirm 52mm center-to-center mounting holes and 30.5mm air intake
• Match part numbers listed and inspect throttle/choke linkage orientation
• Bring old carburetor to parts supplier or compare photos if unsure

Who this product is for: The YAMAKATO Huayi P27 Predator carburetor is aimed at DIY mechanics, small-engine repair shops and owners of home-use power equipment who need an affordable, OEM-form replacement for worn or clogged carburetors on Honda GX-series and clone engines. If you maintain pressure washers, snow blowers, mini bikes, tillers or similar machines and can verify the mounting dimensions, this kit supplies a ready-to-install carburetor with gaskets for a quick return to service.