KTWT Trimmer Head for Echo Straight-Shaft Trimmers, 1-Pack — Direct-Fit Speed-Feed Replacement

KTWT replacement trimmer head fits Echo straight-shaft SRM and PAS series trimmers to restore string-feed performance quickly and affordably.

If your Echo straight-shaft grass trimmer is running but the cutting head is worn, the KTWT trimmer head offers a direct-fit replacement designed for SRM and PAS model numbers listed by Echo. This aftermarket head is built to accept common speed-feed string, installs without specialized tools, and is intended only for straight-shaft machines—curved-shaft trimmers are not compatible. Below you'll find clear answers about fit, installation, durability, and whether this head is right for your maintenance needs.

Which Echo models will this KTWT trimmer head fit?

This KTWT head is manufactured to fit a long list of Echo straight-shaft units, including many PAS-225 and SRM-series models and compatible Speed-Feed configurations. Verify your trimmer's model number—if the model includes SRM or PAS as shown in your manual or on the equipment plate, this head will usually match. Note that GT-255 and curved-shaft variants are excluded.

• Compatible with Echo PAS-225 ranges and many serial batches detailed by manufacturer numbers.
• Fits SRM-225, SRM-2620, SRM-230, SRM-210 and Speed-Feed 400 style heads.
• Strictly for straight-shaft Echo trimmers; not for curved-shaft machines.

How easy is it to install the replacement head?

Installation is straightforward for anyone comfortable with basic outdoor power tool maintenance: remove the old head, align the drive shaft and thread the new head on according to Echo-style attachment steps. Most users can complete the swap in under 15 minutes using common hand tools. Always follow safety precautions and consult your trimmer’s manual when tightening and locking the shaft.

• Thread-on design matches Echo straight-shaft attachments for quick swap-out.
• No specialized tools required beyond those typically used for trimmer head changes.
• Includes one KTWT string trimmer head, ready for string loading and use.

What kind of cutters or line does this head use and how reliable is it?

The KTWT head accepts standard speed-feed style string lines commonly used on Echo trimmers, allowing fast reloading and consistent feed during operation. Built to handle frequent yard work, it offers dependable engagement with the drive shaft and balanced rotation to minimize vibration. Performance will depend on correct line size and regular maintenance like cleaning debris and checking wear.

• Compatible with Speed-Feed 400 style string and similar straight-shaft line systems.
• Balanced design reduces wobble when properly installed and loaded.
• Regular inspection of the spool and cutting line increases service life.

Will this KTWT head affect trimmer safety or warranty?

Using aftermarket replacement parts can vary by manufacturer warranty policy; KTWT heads are intended to be safe when installed correctly on compatible Echo straight-shaft trimmers. To preserve manufacturer warranty, check Echo’s terms regarding third-party components. Always shut off the engine and disconnect spark or power before performing maintenance.

• Follow Echo’s warranty guidance before fitting aftermarket parts.
• Observe standard safety procedures during installation and operation.
• Inspect mounting and locking features after installation for secure fit.

Who is this for: The KTWT trimmer head is a practical choice for homeowners, landscapers, and maintenance professionals who own Echo straight-shaft PAS or SRM series trimmers and need a quick, affordable replacement for a worn or damaged cutting head. It suits users who prefer a speed-feed compatible head, want fast installation, and are comfortable confirming model compatibility before purchase.