Description
Overview:
This genuine primer bulb is a small, fuel‐resistant elastomer cup that mounts on the carburettor to draw fuel through the lines for easy starting. It is designed for handheld Stihl machines such as the FS38 brushcutter and many other compatible models. By purging air and pulling fresh fuel to the carburettor, it helps engines start reliably after storage, refuelling, or line changes. The bulb replaces OEM reference 4226 121 2700 and matches the original shape and seating lip for a secure fit. Clear construction lets you see fuel movement, which helps with quick fault checks. Built for daily use in garden and construction environments, it supports consistent priming performance on two‐stroke equipment.
Key Features:
- Genuine replacement part; replaces OEM 4226 121 2700
- Dimensions for correct fit: ID 16 mm (0.63 in), OD 18 mm (0.71 in), height 19 mm (0.75 in), lip Ø 22 mm (0.87 in)
- Fuel‐resistant materials for long service life with petrol/oil mix
- Clear bulb for a quick visual check of fuel flow and priming
- Restores easy cold starts and smooth running after refuelling or storage
- Secure seating lip to reduce air leaks and hard‐starting issues
- Straightforward push‐fit replacement; minimal downtime and no special tools
- Suitable for brushcutters, hedge trimmers, blowers, pole pruners and multitools across the compatible Stihl range
Typical Applications:
Used to prime the carburettor on Stihl two‐stroke handheld tools before starting. Ideal for routine maintenance, fixing hard‐starting problems, clearing air locks after replacing fuel lines or filters, and helping diagnose fuel delivery issues on garden and site equipment.
Also known as:
Primer pump, purge bulb, carburettor purge bulb, fuel primer bulb, carb primer bulb, fuel purge bulb.
Fits Models:
BG45, BG46, BG50, BG55, BG56, BG65, BG66, BG75, BG85, BG86, BR45, BR200, BT45, BT130, BT131, FC100, FC110, FC55, FC56, FC70, FC75, FC85, FC90, FC91, FC95, FH75, FR85, FR130, FR131, FR135, FS38, FS40C, FS45, FS46, FS50C, FS55, FS56C, FS70, FS75, FS80, FS85, FS87, FS89, FS90R, FS91, FS100, FS110, FS111, FS130, FS131, FS310, FT100, HL45, HL75, HL90, HL95, HL100, HS45, HS75, HS80, HS81, HS82, HS85, HS86, HS87, HT56, HT70, HT75, HT100, HT101, HT103, HT130, HT131, HT132, HT133, KA85, KM55, KM56, KM85, KM90, KM91, KM100, KM110, KM111, KM130, KM131, KR85, KW85, MM55, PC70, PC75, SH55, SH56, SH85, SH86, SP80, SP81, SP85, SP90, SR200
Alternate Part Numbers:
4226 121 2700, 42261212700
Product Specifications
| L&S Part No. | 355 1416 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Backpack Brushcutters, Blower/Shredders, Brushcutters, Clearing Saws, Edging Trowel, Kombi Tools, Mist Blowers, Pole Pruners, Scrub Cutters |
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