$19.88
Save $4.11
was $23.99
Buy Now, Pay Later
As low as
$4
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Nov 4
Recently Viewed
At a glance
- Condition
- New
Features 7
- Used On Stihl FS45 Carburetor, Replaces for STIHL C1Q-S97, C1Q-S186, C1Q-S66, C1Q-S71, C1Q-S143 C1Q-S153, for 4, 4.
- Used On Stihl FS38 Carburetor, Compatible for STIHL FS55R FS55 FS55RC FS55T FS55C FS55Z FS55R-Z FS55R-DZ FS55RCE-Z FS55RCE-DZ FS55RCE FS55DZ FS55CEZ FS55CEDZ FS55CE trimmer / brush cutter.
- Used On Stihl FS55R Carburetor, Compatible for STIHL FS45 FS38 FS46 FS 38 FS 55R FS 45 FS 55 FS45C FS46C FS45Z FS38Z FS46Z FS46DZ FS46CEZ FS46CE FS45L FS45DZ FS45CEZ FS45CE-DZ FS45CE trimmer / brush cutter.
- Used On Stihl FS55 Carburetor, Compatible for STIHL KM55R KM55RC KM55 KM55RZ KM55C KM55RDZ KM55RCEZ KM55RCE KM55CE kombi motor, FC55 HS45 HL45 HS 45 HL45Z HL45DZ hedge trimmer. Please note that it is suitable for the model before 2013.
- [All-In-One Kit] Stihl weedeater parts save time and money against separate purchases.
- [Install And Go] Arrives factory-tuned for your convenience.
- [Trustworthy Engine Operation] Every stihl hs45 carburetor is wet flow tested to emulate engine's real-world performance.
Description
Crafted with Quality, Built to Last Butom has focused on the sale of small engine parts and accessories for most outdoor equipment for over 10 years. We are committed to connecting factories and users, catering to various types of customer maintenance and repair needs. Choose us to keep your outdoor equipment in robust performance and running like new again. We collaborate with multiple top-tier parts manufacturers in China. We can not only meet your current outdoor equipment maintenance needs but also develop additional solutions for your repair requirements. We offer maintenance and repair parts for most outdoor equipments. The equipments includes: trimmers, lawnmowers, chainsaws, leaf blowers, generators, snow blowers, motorcycles, tillers, edgers, augers, and more. The parts includes: carburetors, air filters, fuel filters, mower blades, ignition coils, spark plugs, chains, fuel pumps, belts, and more.
Specs 6
| Brand | Butom |
|---|---|
| Item Highlight | HL45 FS55 FS45C FS46 FS46C FS55C KM55 String Trimmer Weedeater Weedwacker Parts Rebuild Kit,Replace OEM C1Q-S97 C1Q-S186 Carb |
| Brand Name | Butom |
| Model Number | FS45 FS38 FS55R HS45 FS55 FS46 KM55R |
| UPC | 764560298375 |
| Manufacturer Part Number | FS45 FS38 FS55R HS45 FS55 FS46 KM55R |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Nov 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Ok
The carburetor was different than the original carb on my hs45 trimmer. The barbed fittings on my original carburetor are plastic. This replacement carburetor they are brass. They are also set at a little bit of a different angle on the replacement carb vs the original carb. The fuel lines was also different and would not work as it's not even close to the original. However the carburator fit and hooked up just fine. Three pulls and it was off running just fine. No tuning needed. I gave it the full five stars as it worked for what I needed. If you're looking to replace your fuel lines on your hs45, just double check and make sure you have the double moulded lines and not two sperate lines.
...
show more
Reviewed in the United States on July 27, 2026 by Tom
GREAT PRODUCT
good value for the price. Worked well trimmer fired right up with new carburetor.
Reviewed in the United States on October 12, 2026 by Jesse P.
Carburetor kit
Comes with everything needed. Easy to install and my weed eater fired right up. Great product
Reviewed in the United States on September 14, 2026 by Casper4321
Great Value and and Easy Repair
I received no incentives for this review. It was ordered and received within one day. This was for a Stihl FS 55, and I made sure I got the correct carb, something I encourage you to also do since the linkage fitment can be different. The machine would only run in the choke mode, and would stop working in the normal running mode. I have not done a carburetor replacement on this before, but, it was easily done, and afterwards the machine started and ran properly. The new parts fit perfectly, and even had extras. For now, anyway, I can recommend this as excellent value for money. Note: it will take a few pulls to get fuel back into the system when done, be patient. The tips below sound more complicated, but it's really pretty straight forward unbolting, and re-bolting. You can do this. Unsnap the plastic flap that pulls open to reveal the filter and put it aside. Remove the air filter. There are two nuts that can be removed with a socket driver, or set. Remove the fuel hoses from the carb. Slide the carb off, and remove the linkage wire from the retainer (see below). If you're not replacing the fuel lines and filter, then simply replace the linkage wire, add new gaskets if necessary on the front and back of the carb, and slide the new carb back on the bolts and tighten, then replace the two fuel hoses. Replace the air filter, and snap on the plastic flap. If you're replacing the fuel filter and lines, which is a good idea, remove the lines from the carb, and can gently use a flat head screwdriver to loosen the plastic seal over the tank that the hoses are attached to, and lift out the filter. When you reattach it to the carb, make sure that you attach the shorter tube to the closest fitting, and the longer one to the fitting above that. Also make sure that the seal covering the tank fits flat and tight without folds so there are no leaks, you can lift out folds it by carefully using the screwdriver. Putting the linkage back is easier with needle nose pliers, but be aware that there's a larger opening in one side of the slotted linkage pin that the small retainer on the end that the cable fits into. Lay the cable across the slotted pin with the larger opening away from the retainer, and it will slide into the end of the pin. Slide on the new carb, making sure to have a gasket front and back, and replace the fastening nuts and tighten. Add a new air filter, and snap on the plastic swinging cover and you're done. Since the kit contains a spark plug, it makes sense to go ahead and replace that too. One last thing, there's a wire mesh spark arrester that can get clogged and prevent the machine from operating well, or maybe not at all. It's cone shaped, and in the exhaust port and can be easily unbolted and cleaned if necessary. As it helps prevent sparks that might cause fires, do not leave it out, be sure to replace it.
...
show more
Reviewed in the United States on April 11, 2025 by thefarb
LA knob just spins. Requires flat head screwdriver to adjust.
It resolved the issues I had with the old carburetor (hard to start and stalling after warming up), but introduced a new problem. The LA adjust knob does not work. It just spins. It won't thread in or out. So I can't adjust idle speed, which means the trimmer head spins at a fairly high speed even when idling. Update: It turns out the idle adjust does work, but you have to use a flat head screwdriver. Turning the knob does not work, which was a surprise since it does work for the H and L knobs, but for some reason not for the LA knob.
...
show more
Reviewed in the United States on June 17, 2026 by pjc
Fits like it should
Worked and fits great. Didn’t have to adjust any ran right off the rip.
Reviewed in the United States on September 16, 2026 by Bill Webb
Will need some adjusting.
It's a great value. Easy to install.
Reviewed in the United States on September 20, 2026 by carl albrecht
Great product
Exact match to original cranked 1st pull no adjustments.
Reviewed in the United States on August 29, 2026 by Victoria L. Smith