The ECHO SF400 Speed Feed Head is ECHO's patented quick-load strimmer head, designed to eliminate the frustration of traditional line refills. Reload in under 30 seconds with just three steps — without dismantling the head. Part number C6000109, the SF400 fits a wide range of ECHO brushcutters and strimmers from 21cc to 30cc engine sizes, including the SRM-236, SRM-265, SRM-2620TES, SRM-3020TES, SRM-335TES, DPAS-300, and ECDST-58V. In stock at Gustharts, your authorised ECHO dealer. Why Choose the SF400 Speed Feed Head The SF400 is ECHO's own solution to the single biggest frustration in line-head use — slow, fiddly refills. The patented Speed Feed mechanism lets you load fresh line by simply threading it through the eyelets and winding the head against the ground to feed it in. No tabs to press, no spool to remove, no line to chase around the casing. For professional groundskeepers, landscapers, and arborists using ECHO kit daily, that time saving adds up fast. The head is perfectly balanced for vibration-free operation and comes pre-loaded with 2.4mm Silentwist line — ready to work straight out of the box. Maximum line diameter is 2.4mm, suited to grass trimming and light brush work on 21cc to 30cc machines. Compatible ECHO Models The SF400 fits the following ECHO brushcutters and strimmers: DPAS-300, DSRM-2600L, DSRM-2600U, ECDST-58V, ECST-58V, GT-222ES, MTA-DTB, MTA-TBL, SRM-22GESL, SRM-222ESL, SRM-222ESU, SRM-236, SRM-236ES, SRM-236TES, SRM-236TESL, SRM-236TESU, SRM-237TESL, SRM-237TESU, SRM-237L, SRM-237U, SRM-265, SRM-267L, SRM-267U, SRM-300, SRM-300ES, SRM-300TES, SRM-301TESL, SRM-301TESU, SRM-335, SRM-335ES, SRM-335TES, SRM-2305SI, SRM-2620ES, SRM-2620ESL, SRM-2620TE, SRM-2620TES, SRM-2620TESL, SRM-2620TESU, SRM-2621ESL, SRM-2621ESU, SRM-2621TESL, SRM-2621TESU, SRM-2655SI, SRM-3020, SRM-3020TES, SRM-3020TESL, SRM-3020TESU, SRM-3021TESL, SRM-3021TESU, SRM-3610. Always verify your model and thread specification before ordering. Technical Details Part Number C6000109 / SF400 EAN 4934110706247 Max Line Diameter 2.4mm Suitable Engine Sizes 21cc to 30cc Pre-loaded Line 2.4mm Silentwist Reload Time Under 30 seconds Brand ECHO Complete Your Kit Often used alongside replacement trimmer line. Pairs well with ECHO SRM series brushcutters and ECHO multi-tool attachments running a trimmer head. Also Known As SF400 Speed Feed Head is also known as: Speed Feed trimmer head, tap-and-go strimmer head, quick-load brushcutter head, ECHO C6000109 head, bump-feed head, rapid-load line head. FAQs What line diameter does the SF400 take?The SF400 accepts up to 2.4mm diameter trimmer line and comes pre-loaded with 2.4mm ECHO Silentwist line. How do I reload the SF400 Speed Feed Head?Twist the bottom of the head to align arrows with the line eyelets, thread line through both eyelets, then tap the head on the ground while holding the trigger to feed line through. No dismantling required. Will the SF400 fit my ECHO strimmer?The SF400 fits most ECHO brushcutters and strimmers with 21cc to 30cc engines. Check your model against the compatibility list above, and verify the thread direction before ordering. What does C6000109 refer to?C6000109 is the ECHO OEM part number for the SF400 Speed Feed Head. Both references — SF400 and C6000109 — refer to the same genuine ECHO accessory. Can I use other brands of trimmer line with the SF400?Yes. Any quality 2.4mm round or twisted trimmer line will work, though ECHO Silentwist line is optimised for this head and reduces noise during use.