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⚡ Upgrade your engine’s heartbeat—start strong, run smooth, stay ahead!
The FitBest Carburetor 640340 is a precision-engineered replacement part compatible with Tecumseh OH195 and OHH Series 4-cycle horizontal shaft engines. Designed for seamless installation without adjustments, it delivers consistent fuel flow and reliable first-pull starts across lawn mowers, snow blowers, generators, and other small-engine equipment. Trusted by professionals and DIYers alike, it offers OEM-level quality and broad compatibility to keep your power tools running flawlessly.









| ASIN | B01DBK4998 |
| Best Sellers Rank | #129,805 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #122 in Snow Blower Replacement Parts |
| Brand | FitBest |
| Brand Name | FitBest |
| Compatible with Vehicle Type | Generator, Lawn Mower, Snow Blower |
| Customer Reviews | 4.5 out of 5 stars 421 Reviews |
| Exterior Finish | Machined |
| Fuel Type | Gasoline |
| Included Components | 1 x Carburetor, 1 x Gasket |
| Item Dimensions D x W x H | 3"D x 3.2"W x 2.5"H |
| Item Part Number | 640305 640340 640346 640306A |
| Item Type Name | Carburetor |
| Item Weight | 0.44 Pounds |
| Manufacturer | FitBest |
| Manufacturer Part Number | 640222A |
| Model Number | 640305 640340 640346 640306A 640222A |
| OEM Equivalent Part Number | 640305 640340 640346 640306A |
| Product Dimensions | 3"D x 3.2"W x 2.5"H |
| Recommended Uses For Product | tiller |
| Specific Uses For Product | Snowblower |
| Vehicle Service Type | Generator, Lawn Mower, Snow Blower |
A**R
This is a Good Replacement part.
I hear alot of "I ordered a part from Amazon" horror stories. Do your research before/ when ordering part. Your experience will be just like mine. This was an excellent replacement aftermarket carburetor. Installed it , didn't even have to fumble with adjustments , finished the install , pull compressed the engine and pulled, fired up on first pull and did not sputter, took my machine out and ran it for 2hrs no problem. Great price also!
M**N
Wow what a deal with a perfect fit
Just buy the thing! Thinking of ordering a back up because it was so easy to install and cheap. Took 5 min top to install, no tuning or headaches. RUNS FIRST PULL with perfect idle and throttle response!!!!! I spent over 15$ in carb start and cleaner trying to clean out the old carb with no success. Just buy it you'll be much happier than trying to clean out the old one!!
G**N
Tecumseh OEM carburetor
Product is good quality, operates well and arrived quickly.
K**Y
Works well
Bolted up to my Tecumseh 0hh50 engine just fine. Runs best on half choke. Takes a bit to get started, after sitting for a bit. Realized I was running way too rich (spitting gas into the airbox) with the float setting as it was, took a few tries to get it adjusted so I could go WOT without bogging. This only happens at half-choke. I cannot get it to run at full choke off, it bogs at WOT. Overall its a good deal and it will get you running for sure. I am planning on upgrading the carb anyways so I was glad to at least get the go-kart running for the kids.
C**N
Exact fit and no leaks - way to go seller!
The seller’s name is FITBEST, and that name was true to suggested meaning in my case! This carburetor was a nearly identical replacement of the original one provided on my TroyBilt Super Bronco CRT garden tiller (2006 model) with a Tecumseh Engine model OH195EA spec 71263H. The replacement was super easy, just 4 bolts for the carb and two hex head screws+ 1 hex bolt for the air cleaner… the whole replacement took less than 20 minutes. I had to reuse the old gasket that’s between the air cleaner and the carb as this item only supplied the gasket between the cylinder intake manifold and the carb. The tiller went from zero to hero immediately after installing, where it started up on first pull and idled so much more smoothly. Man am I stoked on this new life given to the tiller. No leaks and no fuss— great value at just a few bucks > $10 in this crazy day and age where everything costs an arm and a leg… not this part. For the time saved on cleaning and rebuilding the old carb, this purchase is tops! Kudos FITBEST!
S**S
Replacement small engine carburetor
Great price for a replacement carburetor for my rototiller
R**T
Works great!
I bought this replacement carb for the Tecumseh engine on my old Craftsman power washer. It is almost exactly the same as the old one, the only difference is the placement of the holes for the accelerator linkage - in my case there was a hole in the exact position I needed. Be aware that there is no gasket included for the air cleaner, but I was able to re-use the old one. Once it was together, it started on the first pull and ran better than it ever has!
T**N
Difficult situation
I installed this and it ran very well for about 20 min. Then it was flooding . Gas pouring out of the carburetor. I opened it cleaned it even though it was new. It started and then stopped. It wasn’t getting fuel. The float was stuck closed. I took it off the third time. Cleaned put back on. It started right up but now it surges up and down. I give up.
Trustpilot
4 days ago
2 months ago