Generac 0J2451 G19 Carburetor Assembly with Choke Lever – Genuine OEM Replacement for 389cc Portable Generator Engines

Part Number: 0J2451
Category: Generac Generator Engine Replacement Parts
Type: Replacement G19 Carburetor Assembly with Choke Lever

The Generac 0J2451 G19 Carburetor Assembly with Choke Lever is a genuine OEM replacement fuel system component designed for compatible Generac portable generators equipped with 389cc gasoline engines. This complete carburetor assembly regulates the mixture of air and fuel entering the engine to support proper combustion, reliable starting, and consistent operation. Featuring an integrated choke lever for cold-engine starting, the Generac 0J2451 provides a replacement for clogged, damaged, worn, or malfunctioning carburetors on select Generac GP Series generators.

Product Specifications

• Part Number: 0J2451

• Brand: Generac

• Product Type: Carburetor Assembly

• Component Type: Generator Engine Fuel System Component

• Part Classification: Genuine OEM Replacement Part

• Carburetor Designation: G19

• Engine Application: 389cc Gasoline Engines

• Fuel Type: Gasoline

• Choke Configuration: Integrated Choke Lever

• Primary Function: Regulates Engine Air-Fuel Mixture

• Mounting Location: Engine Intake / Fuel System

• Compatible Equipment: Select Generac Portable Generators

• Compatible Generator Series: Select GP5500 & GP6500 Configurations

• Documented Generator Models: 005939-0, 005940-0 & 005941-0

• Additional Compatible Model References: 005577-0, 005577-1 & 005622-1

• Distributor Reference: ERP12599068

• Application: Generator Engine Fuel Delivery & Carburetor Replacement

• Quantity: 1 Carburetor Assembly with Choke Lever

• Condition: New

Features & Benefits

• Genuine Generac 0J2451 replacement G19 carburetor assembly

• Designed for compatible Generac 389cc gasoline engines

• Includes an integrated choke lever for cold-engine starting

• Regulates the air-fuel mixture delivered to the engine

• Helps restore proper engine starting and running performance

• Supports consistent fuel delivery during generator operation

• OEM replacement design provides proper fit in specified configurations

• Complete carburetor assembly simplifies replacement of a damaged unit

• Suitable for replacing clogged, worn, leaking, or malfunctioning carburetors

Applications

• Select Generac GP5500 portable generators

• Compatible Generac GP6500 portable generators

• Generac 005939-0 generator configurations

• Generac 005940-0 generator configurations

• Generac 005941-0 generator configurations

• Select Generac 005577-0 and 005577-1 generators

• Compatible Generac 005622-1 generators

• Generator carburetor replacement and repair

• Portable generator fuel system maintenance

• Equipment specifying Generac 0J2451 carburetor assemblies

Important Information

• Verify Generac part number 0J2451 before ordering.

• This listing includes one complete G19 carburetor assembly with choke lever, not a complete engine fuel system.

• Designed for select Generac portable generators with 389cc gasoline engines.

• Confirm compatibility using your generator's complete model number and serial number.

• Not every Generac GP5500 or GP6500 generator uses the same carburetor.

• Engine displacement alone does not guarantee compatibility.

• Related gaskets, fuel lines, air filter components, and mounting hardware are not confirmed as included.

• Exact carburetor dimensions, jet sizes, and fuel inlet specifications were not independently verified.

• Inspect the fuel line, intake gasket, choke linkage, and surrounding components before installation.

• Use fresh, clean gasoline and follow the manufacturer's fuel recommendations.

• Disconnect the spark plug wire and allow the engine to cool before servicing.

• Work in a well-ventilated area away from ignition sources when handling gasoline.

• Check for fuel leaks and proper choke operation after installation.

• Follow Generac's recommended installation, maintenance, and safety procedures.