Best Dual Fuel Carburetor For Generator: 10 Replacement Options

#1 · Best Overall

1. YAMAKATO Huayi P28-H-4

Best for: Champion P28-H-4 replacement.

Why it ranks #1: Lists Champion 47.131000.25 fitment across several models, including 100419 and 71530, and includes a mounting gasket and fuel hose.

The 28mm Huayi P28-4-H carburetor uses a 52mm center-to-center mounting-hole spacing, giving owners a concrete fit reference for listed Champion generator models. Its dual-fuel application supports gasoline and propane operation, while the included mounting gasket and fuel hose provide two installation pieces alongside the carburetor.

Compatibility covers Champion models including 100419, 100296, 100230, 100165, 100153, and 100155, so the listed model range helps narrow the replacement choice. The 28mm carburetor and specified 52mm hole spacing give useful dimensions to compare with the existing setup. The package includes a mounting gasket and fuel hose, which means those parts are supplied for installation rather than needing to be sourced separately. It is a replacement part, not a complete conversion kit.

Skip it if you need a carburetor kit for GX390 or GX340 engines; Carburionix GX390 LPG Carburetor lists those engine families.

Champion generator owners seeking a P28-4-H replacement for gasoline-and-propane operation get useful fit dimensions and a supplied fuel hose. Check the listed model range and 52mm mounting spacing against the installation before choosing this focused carburetor kit.

Listed on Amazon as: YAMAKATO Huayi P28-H-4 Dual Fuel Generator Carburetor Part# 47.131000.25

#2 · Broad Champion Fit

2. tofchmic P28-4-H

Best for: Champion high-output P28 replacement.

Why it ranks #2: Names Champion part numbers 47.131000.25 and 47.131000.28 and a long model list spanning 389cc, 420cc, and 439cc generators.

The tofchmic P28-4-H replacement spans Champion dual-fuel generator listings from 389cc and 420cc engines to 439cc applications, including models rated up to 7000 watts and starting at 9000 watts. That broad named coverage is the central appeal for owners matching a P28-series carburetor.

The product lists Champion models such as 100155, 100165, 100592, 100296, and 100419, along with part references 47.131000.25 and 47.131000.28. It also names 71530 and 71531M applications and a 7000-rated/9000-starting-watt generator. Those references help buyers compare model and part identifiers before replacement. The listing calls installation easy and immediate-start, but the supplied package details do not enumerate additional gaskets, hoses, or other installation pieces.

Skip it if you need a listed gasket and fuel hose in the kit; YAMAKATO Huayi P28-H-4 includes both items.

Champion owners matching the listed P28 references and generator models can consider this replacement across several stated engine and output applications. Because extra installation contents are not specified, check whether the parts needed for your service are already on hand.

Listed on Amazon as: P28-4-H 100155 Carburetor for Champion 9375/7500 Watt Dual Fuel Generator 100155 439CC 100296 71530 420CC 389cc 100165 model replace 47.131000.25 47.131000.28

#3

3. RAROZEEK Champion Carburetor

Best for: Champion P28 kit with four gaskets.

Why it ranks #3: Targets Champion dual-fuel models including 100247, 100230, and 71530, and lists compatibility with 420cc, 439cc, and 459cc engines.

The RAROZEEK carburetor pairs Champion P28 4-H and part 47.131000.25 references with four included gaskets, giving owners a gasket assortment alongside the replacement. Its listed Champion dual-fuel generator fitment includes 389cc, 420cc, and 439cc applications, helping identify the intended engine family.

Named Champion models include 100247, 100230, 100165, 71530, 100153, 100296, and 100155, while the listing also references Westinghouse WGen 9500 and 12500 DF and several Pulsar models. That range gives buyers specific model identifiers to compare before service. The four gaskets may support installation needs for the carburetor replacement, and the aluminum-and-iron shell plus oil-outlet anti-rust coating are described as durability features. The listed application remains centered on generator engines and models.

Skip it if you need a fuel hose included; YAMAKATO Huayi P28-H-4 lists one with its mounting gasket.

Champion owners matching the listed P28 reference and named generator models can consider this replacement with four gaskets included. Its application also names selected Westinghouse and Pulsar models, so use those model references to establish fit.

Listed on Amazon as: Dual Fuel Generator Carburetor Compatible with Champion 420cc

#4 · Accessory-Rich Kit

4. AUTOKAY 76533 Carburetor

Best for: Champion 76533 service bundle.

Why it ranks #4: Specifically lists Champion 76533 and several other models; the package also includes three gaskets, an air filter, fuel tank joint, and spark plug.

The AUTOKAY assembly is specified for Champion’s 76533 4750/3800W dual-fuel portable generator, and its package goes beyond the carburetor. Three gaskets, an air filter, a metal fuel-tank joint, and a spark plug arrive with the assembly, supporting a broader parts replacement workflow in one order.

The fit list also names Champion models 100307, 100397, 100401, 100456, 100479, 100524, 100628, and 100629, giving owners several model references to check. For maintenance, the included three-piece gasket set, air filter, metal fuel-tank joint, and spark plug can address more than the carburetor alone. That bundled assortment may reduce separate parts sourcing during a service session, while the specified 4750/3800W application keeps the intended generator class clear.

Skip it if you need an LPG and CNG conversion for GX390 engines; Carburionix GX390 LPG Carburetor specifies GX390-family conversion fitment.

Choose this bundle if your listed Champion generator needs a carburetor and several accompanying service parts in the same maintenance session. Its stated fitment centers on 76533 and named Champion models, so it is not a general-purpose generator carburetor.

Listed on Amazon as: AUTOKAY 76533 Dual Fuel Generator Carburetor for Champion Power Equipment

#5 · Tri-Fuel Choice

5. Hipa Tri-Fuel Conversion Kit

Best for: Three-fuel manual-control conversion.

Why it ranks #5: Supports gasoline, LPG, and CNG, with a three-position switch and stated compatibility for Honda GX340/GX390 engines and specified Champion generators.

HIPA’s conversion kit supports gasoline, propane, and natural gas, with a three-position rotary switch that includes an OFF setting. That manual fuel control is a practical distinction for generator owners planning alternative-fuel operation, while its listed compatibility spans Honda GX340/GX390 engines and specified Champion applications.

The kit includes a carburetor, gasket, and LPG/CNG conversion components, bringing the conversion hardware together for the listed setup. A manual choke lever is specified for cold starts, adding a direct control for starting conditions. Compatibility references include Honda GX340 and GX390 engines and Champion 338cc, 389cc, and 439cc models with named part numbers. The stated output range for the GX390 188F application is 4.5–5.5KW, which helps define its generator use case.

Skip it if you need a carburetor for Honda GX200 170F generators; SYOWADA GX200 Dual Fuel Carburetor lists that engine family.

Owners of listed GX340/GX390 or compatible Champion generators seeking manual selection among gasoline, LPG, and CNG can consider this kit. Its stated 4.5–5.5KW GX390 application and named model coverage set useful fit boundaries.

Listed on Amazon as: HIPA 389cc 420cc Tri Dual Generator Carburetor Propane Conversion kit for Champion Predator Generac Honda OHV Engine 338cc 389cc 420cc 460cc GX340 GX390 GX420 GX460 Portable Generator

#6

6. YAMAKATO 389cc 420cc Kit

Best for: Wide manual tri-fuel conversion.

Why it ranks #6: Covers multiple GX-style displacements and lists Generac, Westinghouse, and Firman models, with a manual carb kit and non-asbestos mounting gaskets.

YAMAKATO’s manual carburetor kit lists gasoline, LPG, and natural-gas conversion for a broad range of Honda and clone engine displacements, from 301cc through 459cc. Its named Generac, Westinghouse, and Firman applications make model coverage the main advantage for owners comparing replacement options.

The kit is identified for Huayi P27-3DL and engine designations spanning 182F, 188F, 190F, and 192F, giving several points to compare with an existing generator. Listed applications include Generac GP-series and XT8000E models, Westinghouse WGen and WH models, and Firman P057 and P067 models. Non-asbestos mounting gaskets are included, supporting the installation workflow. Because this is a manual carburetor kit, buyers should assess the named model and engine references rather than assume universal fit.

Skip it if you want a three-position switch with an OFF setting; HIPA 389cc 420cc Tri Dual Generator Carburetor lists that control.

Owners of listed Honda or clone engines and named Generac, Westinghouse, or Firman generators can consider this manual multi-fuel kit. Its broad fitment list is helpful, but the engine and model references still define the application boundary.

Listed on Amazon as: YAMAKATO 389cc 420cc Tri Dual Generator Carb Gas to LPG CNG Conversion

#7

7. KELKONG GX340 GX390 Kit

Best for: Broad GX and Generac fitment.

Why it ranks #7: Lists GX270, GX340, and GX390 families across 301cc to 459cc, plus Generac and Westinghouse models; included parts are specified.

KELKONG lists compatibility across GX270, GX340, and GX390 engines and several Generac and Westinghouse generator models, making breadth of named fitment its defining feature. The LPG/NG conversion kit includes a damper handle, screw, and gasket alongside the carburetor for installation.

The engine references span 301cc through 459cc and include 182F, 188F, 190F, and 192F designations, giving buyers several identifiers to compare with their generator. Named Generac applications include GP5000, GP5500, GP6500, GP6500E, GP8000E, and XT8000E, while Westinghouse models are listed too. The included damper handle, screw, and gasket provide installation components in the package. Its stated LPG/NG conversion purpose is relevant to owners seeking those fuel options.

Skip it if you need stated LPG and CNG pressure ranges; Carburionix GX390 LPG Carburetor supplies separate pressure specifications.

Generator owners whose GX-family engine or named Generac or Westinghouse model appears in the fitment list can consider this LPG/NG kit. Its broad references aid screening, but the listing supplies no specific output or pressure range.

Listed on Amazon as: GX340 GX390 Carburetor LPG/NG Dual fuel Conversion Kit 188F

#8 · GX390 Conversion

8. Carburionix GX390 Kit

Best for: GX390 LPG and CNG conversion.

Why it ranks #8: Targets GX390/188F generators and lists GX340, GX420, and 4.5–6.5kW generator applications, with LPG and CNG pressure ranges.

The Carburionix kit lists conversion for GX390 188F portable gasoline generators and also names GX340 and GX420 compatibility, making its engine-family coverage the key differentiator. It specifies LPG and CNG pressure ranges, giving buyers operating details to consider when adding gaseous-fuel capability.

The listed generator output is 5–8KW, while the fitment section also names 4.5–6.5KW gasoline generators and GX340, GX390, and GX420 engines. LPG pressure is specified at 2.8–3.8 KPA and CNG at 2.0–2.6 KPA, with a pressure-regulating valve output range of 0.03–1.56KPA. Those figures help buyers assess the intended fuel setup, but the listing does not describe a bundled gasket or hose set.

Skip it if you need a bundled gasket and hose set; YAMAKATO Huayi P28-H-4 lists a mounting gasket and fuel hose.

GX340, GX390, and GX420 generator owners considering LPG or CNG conversion can use the stated engine and pressure ranges to assess this kit. Confirm the intended output class and plan separately for installation items not listed as included.

Listed on Amazon as: New GX390 188F Dual Fuel Generator Carburetor LPG NG Petrol Conversion Kit

#9

9. Simkfosh Firman Carburetor

Best for: Firman large-engine replacement.

Why it ranks #9: Designed for listed Firman H07552, H07553, T07571, and T07573 models, with compatibility stated for 439cc engines and 6,900–9,400W generators.

The Simkfosh carburetor lists compatibility with Firman H07552, H07553, T07571, and T07573 tri-fuel generators, a focused match for owners of those larger models. Its stated 439cc engine and 6900-to-9400-watt generator range identify the equipment class, while the listing emphasizes durable, corrosion-resistant materials.

The fitment names four Firman generator models and a 439cc engine, with wattage references spanning 6900, 7500, 8450, and 9400 watts. Those details help owners compare the replacement against the intended machine rather than treating it as a universal carburetor. For gaseous-fuel operation, the listing specifically advises using a compatible fuel regulator and shut-off valve, an important part of the installation and operating setup. The carburetor itself is described as durable and corrosion resistant.

Skip it if you want the regulator and shut-off valve included; this listing says to use compatible components but does not list them in the package.

Firman owners with one of the listed 439cc tri-fuel models can consider this replacement for the specified generator range. Its gaseous-fuel setup requires a compatible regulator and shut-off valve, so account for those parts when planning installation.

Listed on Amazon as: Carburetor Fit for Firman H07552 H07553 T07571 T07573 Tri Fule Generator

#10

10. SYOWADA GX200 Kit

Best for: GX200 compact-generator conversion.

Why it ranks #10: Fits a narrower GX200/170F generator range with stated 208cc, 210cc, and 212cc engine types and a 2.8–3.8kPa LPG pressure range.

The SYOWADA kit targets Honda GX200 170F portable-generator applications and lists gasoline-to-LPG or natural-gas conversion, bringing alternative-fuel use to a specified small-engine family. Its stated 208cc, 210cc, and 212cc range plus 3500-watt maximum output help define the generator class it addresses.

The listing gives a 2800-watt rated output and 3500-watt maximum, giving buyers a clearer capacity context for the GX200-family application. Its LPG pressure range is 2.8–3.8 KPA, a relevant specification when planning gaseous-fuel operation. The package contains the carburetor, three gaskets, and a choke lever, providing installation pieces and a control component together. Fitment is described for Honda GX200 170F portable gasoline generators, rather than a broad range of generator engines.

Skip it if you have a GX390 or GX340 engine; Carburionix GX390 LPG Carburetor lists those larger engine families.

This kit suits owners of a Honda GX200 170F portable generator seeking gasoline and gaseous-fuel options within the listed output range. Its GX200-centered fitment and stated LPG pressure range make engine and fuel-system compatibility important boundaries.

Listed on Amazon as: SYOWADA 170F GX200 Dual Fuel Carburetor Generator LPG CNG Conversion Carburetor Kit, Replacemant for Honda GX200 170F 170G-GX200 (Style1)