Best Carburetor Kit for Lawn Mower (2026)
Carburetor kits for lawn mower engines, compared by part numbers, included parts, engine sizes and warranty.
On this page
Top picks at a glance
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- 1
Best OverallYzusGomumu 799584 Kit9.7/10View on Amazon - 2
Best Tune-Up KitAylux 799583 Kit9.6/10View on Amazon - 3
Best for Push MowersAUTOKAY 799868 Kit9.5/10View on Amazon
A mower that will not start, idles rough or smokes on a property with grass to cut is a mower out of work, and the carburetor is often the part behind those symptoms. A kit with the carburetor and the small parts around it lets an owner swap the worn parts together. This guide compares the best carburetor kit for lawn mower fitment on part numbers, included parts and engine sizes, using only what each listing states.
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Quick picks
- Best Overall YzusGomumu 799584 Kit: Full kit for 163cc engines with a 1 year manufacturer warranty, the only warranty stated here Check price on Amazon
- Best Tune-Up Kit Aylux 799583 Kit: Carburetor plus air filter, air filter cover, primer bulb, fuel shut-off valve, spark plug, fuel lines and clamps Check price on Amazon
- Best for Push Mowers AUTOKAY 799868 Kit: Kit for 6-6.75 HP Craftsman and Snapper 22 inch push mowers, with gaskets, primer bulb and spring set Check price on Amazon
Our acreage picks
YzusGomumu 799584 Carburetor Kit with Spark Plug and Air Filter for 163cc Engines
A 799584 carburetor kit for 163cc engines, with a carburetor, spark plug, fuel line, air filter, throat bands, fuel shut-off valve, fuel filter and O-ring, backed by a 1 year manufacturer warranty.
Who it's for: an owner of a 163cc mower who wants a complete kit with a stated warranty.
Who should skip it: anyone who needs a primer bulb in the pack, since this kit lists none.
Read the full review
The YzusGomumu kit is a 799584 carburetor kit for 163cc engines, covering B&S part numbers 594057, 592361 and 594529 and Troy Bilt TB110 and TB200, among other listed models. The package includes a carburetor, a spark plug, a fuel line, an air filter, throat bands, a fuel shut-off valve, a fuel filter and an O-ring. The listing claims the kit can solve oil leakage, difficult starting, failure to accelerate and black smoke, and states corrosion-resistant materials and a 1 year manufacturer warranty.
Pros
- Full kit: carburetor, spark plug, fuel line, air filter, valve, filter and O-ring
- Fits 163cc engines including Troy Bilt TB110 and TB200
- 1 year manufacturer warranty stated, the only warranty here
- Corrosion-resistant materials stated for long-term use
Cons
- Fitment list is long, so part numbers must be checked before ordering
- No primer bulb or gaskets listed in the package
- Symptom-fix claims depend on the engine condition
- Bolt-on flange type stated, so check the flange against the old carburetor
Rakiyada 799584 Carburetor Kit for 163cc Lawn Mower Engines, Troy Bilt TB110 and TB200
A 799584 carburetor kit for 163cc engines, with a carburetor, spark plug, fuel hose, air filter, throat clamps, fuel shutoff valve, fuel filter and O-ring.
Who it's for: an owner of a 163cc mower who wants the 799584 fitment with valve, filter and O-ring included.
Who should skip it: anyone who needs a stated warranty or a primer bulb in the pack, since this listing states neither.
Read the full review
The Rakiyada kit is a 799584 carburetor kit for 163cc engines, covering Troy Bilt TB110 and TB200, B&S 09P702 and 550EX, 625EX, 675EX and 725EXI models, among others. The package includes a carburetor, a spark plug, a fuel hose, an air filter, throat clamps, a fuel shutoff valve, a fuel filter and an O-ring. The listing claims the kit can solve leakage, lack of power and black smoke from the exhaust pipe.
Pros
- Fits 163cc engines including Troy Bilt TB110 and TB200
- Carburetor, spark plug, fuel hose, air filter, valve, filter and O-ring included
- Fuel shutoff valve included
- High quality material stated for long-term use
Cons
- No warranty term is stated
- Fuel hose size is not stated
- No primer bulb listed in the package
- Air filter differs from the top kit, so check the old filter
Aylux 799583 Carburetor Kit for B&S 300E, 450E, 500E and 550EX Engines with Filter and Cover
A 799583 carburetor kit for B&S 300E, 450E, 500E and 550EX engines in 125cc and 140cc, with a carburetor, air filter, air filter cover, primer bulb, fuel shut-off valve, spark plug, fuel lines and clamps.
Who it's for: an owner of a smaller B&S mower who wants a full tune-up kit with filter and cover.
Who should skip it: anyone with a 163cc engine or anyone who wants a metal carburetor body, since this kit lists 125cc and 140cc fitment and plastic materials.
Read the full review
The Aylux kit is a 799583 carburetor kit for B&S 300E, 450E, 500E and 550EX engines in 125cc and 140cc, covering part numbers 799583, 593261, 595656, 591979, 591160 and 590556. The package includes a carburetor, an air filter, an air filter cover, a primer bulb, a fuel shut-off valve, a spark plug, fuel lines and clamps. The listing describes durable plastic materials and support for consistent fuel delivery, and names difficult starting, unstable idling and excessive exhaust smoke as symptoms the kit addresses.
Pros
- Complete tune-up kit: carburetor, filter, cover, primer bulb, valve, plug, lines and clamps
- Fits B&S 300E, 450E, 500E and 550EX in 125cc and 140cc
- Air filter cover 595660 and filter 799579 included
- Fits Toro, Craftsman and MTD mowers and edgers with B&S 500 series engines
Cons
- Body material stated as durable plastic, not metal
- No warranty term is stated
- Fitment covers many part numbers, so verify the original part number before ordering
- No 163cc fitment stated, unlike the 799584 kits
AUTOKAY 799868 Carburetor Kit for 6-6.75 HP Craftsman and Snapper 22 Inch Push Mowers
A 799868 carburetor kit for 6-6.75 HP Craftsman and Snapper 22 inch push mowers, with a carburetor, gaskets, air filter, primer bulb, spark plug, retaining rings, fuel filter, fuel switch, O-rings, screws, fuel hose and spring set.
Who it's for: an owner of a Craftsman or Snapper push mower who wants the full small-parts set with the carburetor.
Who should skip it: anyone whose engine falls outside the 6-6.75 HP title fitment, or anyone who needs a stated warranty.
Read the full review
The AUTOKAY kit is a 799868 carburetor kit for 6-6.75 HP Craftsman and Snapper 22 inch push mowers, covering 122000 model engines and part numbers including 498170, 799872, 694202 and 497586. The package includes a carburetor, gaskets, an air filter, a primer bulb, a spark plug, retaining rings, a fuel filter, a fuel switch, O-rings, screws, a fuel hose and a spring set. The title gives 6-6.75 HP, while the bullets also mention 4-7 hp engines; trust the title on the 6-6.75 HP fitment.
Pros
- Fits 6-6.75 HP Craftsman and Snapper 22 inch push mowers
- Widest parts list here: gaskets, retaining rings, screws and spring set included
- Primer type system stated
- Covers 122000 model engines and many listed part numbers
Cons
- Title gives 6-6.75 HP, while bullets also mention 4-7 hp engines
- No warranty term is stated
- No body material stated for the carburetor
- Fitment list runs to many model numbers, so verify the engine model before ordering
Side-by-side specs
| Model | Acre Score | Fits | Kit includes | Warranty |
|---|---|---|---|---|
| YzusGomumu 799584 Kit | 9.7/10 | 163cc; B&S 594057, 592361, 594529 | Carburetor, plug, fuel line, filter, valve, O-ring | 1 Year Manufacturer |
| Rakiyada 799584 Kit | 9.6/10 | 163cc; Troy Bilt TB110, TB200 | Carburetor, plug, hose, filter, valve, O-ring | Not stated |
| Aylux 799583 Kit | 9.6/10 | 125cc, 140cc; B&S 300E, 450E, 500E, 550EX | Carburetor, filter, cover, primer bulb, valve, plug, lines, clamps | Not stated |
| AUTOKAY 799868 Kit | 9.5/10 | 6-6.75 HP; Craftsman, Snapper 22 inch | Carburetor, gaskets, filter, primer bulb, plug, rings, switch, hose, springs | Not stated |
Specifications are manufacturer rated as listed, collected 24 October 2026.
Acreage and terrain fit
YzusGomumu 799584 Kit
Rakiyada 799584 Kit
Aylux 799583 Kit
AUTOKAY 799868 Kit
How the picks were scored
The Acre Score weighs performance, build, value, safety and warranty from stated specs only. Safety points go only to stated features, such as a fuel shut-off valve in the kit. Only the YzusGomumu listing states a warranty term, so the other picks earn zero warranty points. The scoring method page explains the weights.
| Product | Acre Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| YzusGomumu 799584 Kit | 9.7 | 30 | 21 | 21 | n/a | 3 |
| Rakiyada 799584 Kit | 9.6 | 29 | 20 | 20 | n/a | 0 |
| Aylux 799583 Kit | 9.6 | 28 | 20 | 20 | n/a | 0 |
| AUTOKAY 799868 Kit | 9.5 | 28 | 19 | 20 | n/a | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.
Buying guide: choosing the best carburetor kit for lawn mower
Match the part number
Part numbers decide fitment. The 799584 kits suit 163cc engines, the 799583 kit suits 125cc and 140cc engines, and the 799868 kit suits 6-6.75 HP push mowers. Check the old carburetor part number and the engine model against the listing before ordering, since the fitment lists run long and a close number is not a match.
What a full kit includes
A full kit saves another order. The YzusGomumu kit includes a carburetor, spark plug, fuel line, air filter, throat bands, fuel shut-off valve, fuel filter and O-ring. The Aylux kit adds an air filter cover and a primer bulb, and the AUTOKAY kit adds gaskets, retaining rings, screws and a spring set. Compare the included parts list against the worn parts before ordering, and note what is missing: the YzusGomumu and Rakiyada kits list no primer bulb. For a carburetor without a kit, see carburetor for riding mower.
Fuel shut-off valves and safety
Every kit here includes a fuel shut-off valve or a fuel switch. Refuel with the engine off and cool.
Symptoms a kit addresses
The listings name the same symptoms across the kits: difficult starting, oil leakage, lack of power and black smoke from the exhaust pipe. A kit addresses those symptoms when the carburetor is the worn part; it does not fix every engine problem. Check the part number and the included parts before ordering.
Matching It to Your Property
- Push mower for a small lot: the AUTOKAY kit for 6-6.75 HP Craftsman and Snapper 22 inch push mowers.
- 163cc mower: the YzusGomumu or Rakiyada 799584 kits for Troy Bilt TB110 and TB200 engines.
- Smaller B&S engine: the Aylux 799583 kit for 125cc and 140cc engines.
- Kit with a warranty on the shelf: the YzusGomumu kit, with a 1 year manufacturer warranty stated.
Read the manual, keep children and pets out of the yard while you work, wear eye and hearing protection and sturdy footwear, and never exceed the slope rating of your machine. Refuel only with the engine off and cool. See CPSC lawn mower safety. Read our Safety Disclaimer.
FAQ: mowing large lots
How do I know which carburetor kit fits my mower?
Check the old carburetor part number and the engine model against the listing. The 799584 kits suit 163cc engines, the 799583 kit suits 125cc and 140cc engines, and the 799868 kit suits 6-6.75 HP push mowers. A close number is not a match, so verify before ordering.
What parts come in a carburetor kit?
It varies by kit. The YzusGomumu kit includes a carburetor, spark plug, fuel line, air filter, throat bands, fuel shut-off valve, fuel filter and O-ring. The Aylux kit adds an air filter cover and a primer bulb, while the AUTOKAY kit adds gaskets, retaining rings, screws and a spring set.
Does a carburetor kit fix a mower that will not start?
It can, when the carburetor is the worn part. The listings name difficult starting, oil leakage, lack of power and black smoke as symptoms these kits address. Check the part number and the symptoms before ordering, since other engine faults need different parts.
Do these kits include a fuel shut-off valve?
The YzusGomumu, Aylux and Rakiyada kits include a fuel shut-off valve, and the AUTOKAY kit includes a fuel switch. Check the included parts list for the kit before ordering.
Is there a warranty on these kits?
Only the YzusGomumu listing states a warranty term: 1 Year Manufacturer. The Aylux, Rakiyada and AUTOKAY listings state no warranty term. Check the listing for warranty terms before ordering.
