Carburetor
HS45 / FS55 Carburetor for STIHL Trimmers
4.6 · 571 reviews
- FS38
- FS45
- FS46
- FS55
- +4
$14.99 at last check
Fit first: match the number on your old partWet-flow tested carburetorsKits ship with gaskets & filters

Trimmers · Carburetors
4.5 out of 5 · 623 reviews
RB-K112 carb with filters for SRM-266, PAS-266 and PPT-266.
$19.88at last check, Sep 27, 2026
RB-K112A021003830A021003831ECHO's SRM-266 is a pro-grade trimmer, and its RB-K112 carb feeds a whole family of tools: the PAS-266 power head, the PPT-266 pole pruner, the PE-266 edger and the SHC-266 hedge trimmer.
The kit brings two air filters, two primer bulbs and two gaskets, plus line, filter and plug. Measure the mount holes on the old carb: they should be 31 mm apart.
| Mount holes | 31 mm |
|---|---|
| Throttle | 10.5 mm |
| Choke | 11.2 mm |
| Venturi | 10.7 mm |
Compare the stamp on your old part with the “Replaces” list, and your engine code with “Fits”. If it still isn't clear, send a photo to the counter and we'll check it for you.
Carburetor
4.6 · 571 reviews
$14.99 at last check
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4.7 · 1,174 reviews
$19.88 at last check
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4.4 · 435 reviews
$17.99 at last check
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4.5 · 246 reviews
$17.99 at last check
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