Wanotine 10-Pack Primer Bulb for Stihl — Replaces 4226 121 2700

Overview and fit

The Wanotine 10-pack primer bulb is a ready-to-use replacement set designed for a wide range of Stihl gas trimmers, blowers, hedge trimmers, and multi tools. Each bulb is crafted for a smooth, reliable prime, helping you start quickly when priming is challenging in the field. The compact design and consistent sizing are meant to support a snug, secure seal in compatible carburetors, so you can tackle yard tasks with less downtime.

What’s included

• 10 primer bulbs
• Outside diameter: 13/16 inch
• Height: 5/8 inch

Durable design and practical performance

These bulbs are built to resist fuel exposure while maintaining flexibility for an effective seal. The 13/16 inch outside diameter and 5/8 inch height match common Stihl priming components, supporting dependable prime cycles during routine maintenance. The smooth exterior and firm inner structure help promote a consistent priming action, which many users notice during regular service intervals.

With a bulk 10 pack you gain ready replacements for multiple machines or service calls, reducing trips to the parts store and helping you keep machines ready for yard work. The compact, lightweight bulbs store easily in a tool box or service kit, enabling faster field service when you need it most.

Compatibility and part numbers

The Wanotine bulbs replace Stihl part number 4226 121 2700 and are compatible with a wide range of Stihl models across trimmers, blowers, hedge trimmers, and multi tools. Common uses include FS series trimmers such as FS90, FS90R, FS55, FS56, FS70R, FS80R, FS85, FS91R, FS110, FS130, and more, as well as BG series blowers, KM series Kombi systems, and select HL/HT and FC models. This broad compatibility helps simplify maintenance planning for households and small shops alike.

Real-world use cases

• Seasonal maintenance on trimmers and blowers
• Bulk replacements for shops or crews
• Emergency kit additions for on-site projects

Usage tips and care

• Cool engine before replacement
• Check nearby fuel lines for wear
• Keep a spare bulb on hand for faster field service

Why Wanotine replacement parts

Wanotine focuses on compatibility with a broad list of Stihl models and offers a convenient 10-pack for ongoing maintenance. The bulbs are designed for easy installation, cost efficiency, and dependable priming performance across a variety of equipment.

Storage and longevity

Store replacement bulbs in a cool, dry place away from direct sunlight and fuels to maximize shelf life and readiness for your next project.

Note that results can vary by model and operating conditions. This description highlights compatibility and potential maintenance benefits rather than guarantees.