yhoparts primer bulb 12-pack for quick STIHL trimmer maintenance.
yhoparts primer bulb compatibility chart helps identify model support.
yhoparts kombi motor compatibility shows broad tool coverage.
yhoparts hedge-trimmer compatibility facilitates fast replacements.
yhoparts primer bulb closeup reveals replacement details for accuracy.
yhoparts primer bulb packaging clearly labels a 12-pack for stocking.
yhoparts primer bulb install diagram guides easy placement.

yhoparts

yhoparts 12-Pack Primer Bulb 4226 121 2700 for Stihl Trimmers & Kombi Motors

High-performance patio lawn and garden made for confident daily results

$13.92

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Why customers choose PatioZora Garden

Overview

The yhoparts 12-pack primer bulbs are designed to replace worn or aging primer bulbs in a wide range of Stihl gas-powered trimmers, hedge trimmers, and Kombi motors. This set gives you spare parts on hand to minimize downtime and keep your yard tools ready for action.

Whether you’re tidying a sunny lawn edge or clearing along fence lines, a fresh primer bulb can help your engine start more reliably and provide steadier fuel delivery. While results can vary by model and usage, carrying a ready replacement offers practical peace of mind for busy seasons.

What you get

  • 12 primer bulbs in one pack, ready for replacement across several Stihl tool families
  • Replaces OEM: Stihl 4226 121 2700, plus compatible numbers from Zama and Homelite

Compatible models and specs

The bulbs are engineered for a broad range of Stihl equipment, including trimmers and brushcutters, Kombi motors, and hedge trimmers. This covers many FS-series trimmers and a wide selection of KM and HL/HS/HT hedge tools. The part is sized to fit standard carburetor intakes for reliable installation.

  • Trimmers/Brushcutters: FS38, FS40, FS40C, FS45, FS46, FS50, FS55, FS56, FS70, FS80, FS85, FS87, FS90, FS91, FS100, FS110, FS111, FS130, FS230, FS310, FS311
  • Kombi Motors: KM55, KM55C, KM56, KM56C, KM85, KM90, KM91, KM100, KM110, KM130, KA85, KR85, KW85, MM55
  • Hedge Trimmers: HL45, HL75, HL90, HL95, HL100, HS45, HS75, HS80, HS81, HS82, HS85, HS86, HS87, HT56, HT70, HT75, HT100, HT101, HT103, HT130, HT131, HT132, HT133

Key specs

  • Bulb height: 0.75 inches (19 mm); flange diameter: 0.85 inches (21.6 mm); bulb diameter: 0.725 inches (18.5 mm)
  • 12-pack sizing helps you stock spare components for quick maintenance

Real-world use scenarios may include post-season maintenance, quick-start troubleshooting on busy weekends, and routine replacements to maintain smooth throttle response. The replacement bulb is designed to drop in with minimal tools and no guesswork, helping you get back to trimming sooner.

FAQ

Q: Which models is the yhoparts primer bulb compatible with?

A: Fits a wide range of Stihl trimmers, Kombi motors, and hedge trimmers listed in the specs.

Q: What is included in the package?

A: Twelve replacement primer bulbs, ready for replacement on compatible STIHL models.

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