Overview
Engineered as a direct-fit replacement, this gear housing assembly restores the drivetrain connection between the trimmer shaft and the cutting attachment. Gearbox failure is typically caused by insufficient lubrication, impact damage, or normal wear on the bevel gears inside. A fresh assembly comes pre-greased and ready for installation.
Key specifications
- Replacement gear head/gearbox assembly
- Includes housing, bevel gears, and bearings
- Pre-lubricated for immediate installation
- Direct-fit OEM-equivalent design
- Hardened steel gears for long service life
Compatibility
This gear assembly is designed for Echo trimmers and brush cutters as specified above. Verify the shaft diameter, thread direction, and mounting style before ordering.
Installation notes
Disconnect power before servicing. Remove the cutting attachment from the old gear head, then unbolt the gearbox from the shaft housing. Slide the new assembly into position, ensuring the inner drive shaft engages the bevel gear properly. Tighten all fasteners and check for smooth rotation before use.
Common questions
Q: Will this gear housing assembly fit my Echo PAS-225VPB power head with the trimmer attachment, or is it only for the SRM-225i?
Yes, this gear housing assembly is listed for both the SRM-225i and PAS-225VP/PAS-225VPB trimmer applications, along with several other Echo models like the SRM-2120 and SRM-2620 series. The key is matching the gearbox style used on your specific trimmer or attachment shaft, so it’s best to compare your original gear case and part configuration before installing.
Q: Does this gearbox come ready to install on an Echo SRM-2620T, and should I add grease before using it?
It should install as a direct replacement gear housing assembly for the compatible SRM-2620T setup, but you should still inspect the shaft, mounting points, and cutter head threads during the swap. Before running the unit, make sure the gearbox has the proper gear grease and continue to service it at normal maintenance intervals to prevent premature wear.
Q: My Echo SRM-210 trimmer head wobbles and the gearbox gets noisy—would replacing this gear housing assembly fix that?
If the wobble and noise are coming from worn gears, bearings, or a damaged gear case at the cutting head, replacing the gear housing assembly is often the correct repair. It’s also smart to check the drive shaft, trimmer head, and mounting hardware at the same time, because a bent shaft or damaged head can cause similar symptoms.
