Automotive Parts [Lifetime Warranty] 791230 Carburetor Kit
791230 carburetor kit including a dual-barrel carburetor, fuel filters, mounting gaskets, and hardware.
791230 carburetor assembly with technical dimension labels showing width and height measurements.
791230 carburetor replacement part shown next to an engine being repaired.
Two views of a 791230 aluminum alloy carburetor showing the intake ports and metal housing construction.
Infographic showing 791230 carburetor kit compatibility with tractors, lawn mowers, and zero-turn mowers.
Two views of the 791230 carburetor replacement part for engine repair.
791230 carburetor replacement part shown in a promotional lifestyle graphic with a farmer and tractor.
791230 carburetor kit including a dual-barrel carburetor, fuel filters, mounting gaskets, and hardware.
791230 carburetor assembly with technical dimension labels showing width and height measurements.
791230 carburetor replacement part shown next to an engine being repaired.
Two views of a 791230 aluminum alloy carburetor showing the intake ports and metal housing construction.
Infographic showing 791230 carburetor kit compatibility with tractors, lawn mowers, and zero-turn mowers.
Two views of the 791230 carburetor replacement part for engine repair.
791230 carburetor replacement part shown in a promotional lifestyle graphic with a farmer and tractor.
Lifetime Warranty

[Lifetime Warranty] 791230 Carburetor Kit

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791230 Carburetor Kit

Key Features

  • Direct replacement carburetor for V-Twin engines.
  • Engineered to maintain a precise fuel-to-air mixture for smooth operation.
  • Designed for engines in the 20HP to 25HP range.
  • Kit includes carburetor and mounting gaskets for a complete installation.
  • Constructed for durability and reliable performance.

Replaces / Cross-Reference Part Numbers

  • Briggs & Stratton: 791230
  • Briggs & Stratton: 799230
  • Briggs & Stratton: 699709
  • Briggs & Stratton: 499804

Compatibility & Fitment

  • Fits select Briggs & Stratton 400000 and 440000 V-Twin engine series.
  • Specific engine models include: 405777, 406777, 407677, 407777, 441777, 442577, 445677, 445705, and 445777.
  • Commonly used on equipment from brands such as John Deere, Toro, and Electrolux that utilize the specified Briggs & Stratton engines.

When to Replace

  • Engine will not start or is difficult to start.
  • Engine runs rough, surges, or stalls.
  • Noticeable decrease in power or fuel efficiency.
  • Black smoke emitting from the exhaust.
  • Fuel leaks from the carburetor body.

Installation Tips

  • Always disconnect the spark plug wire before beginning service.
  • Clean the area around the carburetor to prevent debris from entering the engine.
  • Photograph the governor linkage, springs, and fuel line connections before removal for accurate reassembly.
  • Ensure mounting surfaces are clean and free of old gasket material.
  • Consider replacing the fuel filter and fuel lines during installation for optimal performance.
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  • Fixing symptoms

    Fixing symptoms

    Popping/ banging/ sneezing sounds | Excessive exhaust | Starting difficulties | Idling issues | Carburetor floods
  • Premium Quality

    Premium Quality

    It is crafted from a lightweight and robust Aluminum Alloy that offers a favorable strength-to-weight ratio
  • Saving solution

    Saving solution

    BlueStars brings DIY solutions to help you deal with any trouble
  • Simple installation

    Simple installation

    Please follow our instructions in the below image or ask us for help!
EXCEPTIONAL PARTS, REMARKABLE JOURNEY

EXCEPTIONAL PARTS, REMARKABLE JOURNEY

Enjoy your seamless experience with the support of our replacement parts!
Brand Model Number
J-Deere LA120 LA130 LA135 LA140 LA145 LA150 X140 L111 L118 L120 L2548 L2048 Tractors, Z425 Z235 Z245 Z255 Z535M Zero-Turn Mowers
B&S 407777 405777 406777 407677 441777 442577 445677 445705 445777 445877 445977 446677 446777 446877 446977 40H777 40F777 40G777 44677A 20HP 21HP 23HP 24HP 25HP Engine V-Twin 4 Cycle models
Sabre 1846HV 1846HMS 2046HV Lawn Tractors
Scotts S2046 S2546 Lawn Tractors
Manufacturer
‎BlueStars
Brand
‎BlueStars
Model
‎Carburetor Kit
Item Weight
‎1.46 pounds
Package Dimensions
‎5.71 x 5.12 x 3.82 inches
Exterior
‎Machined
Manufacturer Part Number
‎B791230
OEM Part Number
‎791230 799230 699709 499804

FAQ

This kit is designed for Briggs & Stratton 20HP to 25HP V-Twin Intek engines, including models 405777, 406777, 407677, 407777, 441777, 442577, 445677, 445705, 445777, 445877, 445977, 446677, 446777, 40F777, 40G777, and 40H777. It is commonly used on equipment from brands such as Briggs & Stratton, John Deere (replaces MIA10632), Cub Cadet, Toro, Simplicity, MTD, and Troy-Bilt.
This unit replaces OEM part number 791230. It also cross-references with 799230, 699709, 499804, 499809, 796258, 796227, 792295, 796997, and 795969.
You likely need a replacement if your engine is surging, hunting for idle, running roughly, or failing to start. Other indicators include fuel leaking from the carburetor body or the engine losing power under load, which often suggests the internal jets are clogged or the internal needle and seat are no longer sealing properly.
Before removing the old unit, thoroughly clean the area around the carburetor to prevent dirt and debris from falling into the intake manifold. We highly recommend taking a photograph of the governor linkage, springs, and fuel line routing before disconnection; this serves as a helpful reference to ensure everything is reconnected in the correct position during reassembly.
The most common cause of failure in these carburetors is the use of ethanol-blended fuels, which can break down and leave sticky deposits in the small internal passages. To prolong the life of your new carburetor, use fresh, non-ethanol fuel whenever possible and ensure your fuel system is free of dirt, debris, and water.