Echo Gear Case SRM-225 SRM-2620 SRM-3020 Shindaiwa T302 | OEM

Genuine Echo Gear Case SRM-225 SRM-2620 SRM-3020 Shindaiwa T302 | OEM P021051520

Is your trimmer head wobbly, grinding, or seized? Restore smooth, factory performance with this Genuine Echo/Shindaiwa Gear Case Assembly (P021051520). This is the authentic manufacturer replacement used on the industry’s most reliable trimmers, including the Echo SRM-225 and the Shindaiwa T302.

Engineered for the high-RPM demands of commercial landscaping, this gear case comes fully assembled with high-grade internal gears and sealed bearings, ready to bolt directly onto your drive shaft.

• Massive Compatibility: One gearbox services the entire Echo/Shindaiwa range from the 21cc SRM-225 up to the powerful 30cc SRM-3020 series.

• Sealed Precision Bearings: Features high-speed, pre-lubricated bearings that reduce heat and friction—preventing the "gearbox burn-up" common in cheap aftermarket imitations.

• Optimized Power Transfer: Precision-cut internal gears ensure maximum energy reaches your Speed-Feed® head with zero vibration.

• Direct Bolt-On Fit: Slides perfectly onto your outer tube and aligns with the internal drive shaft splines for a 5-minute repair.

• Replaces Multiple Part Numbers: Supersedes P021052600, P021051870, and fits units previously using the 99944200540 attachment gearbox.

This gear case fits a massive variety of Echo and Shindaiwa models:

• Echo Trimmers: SRM-225, SRM-225i, SRM-2620, SRM-2620U, SRM-3020, SRM-3020U

• Echo Battery Series: DSRM-2600, DSRM-2600U

• Shindaiwa Trimmers: T235, T302, T302X, C302

• Attachments: Fits 66001 and 99944200540 Speed-Feed Trimmer Attachments

⚠️ Serial Number Match: Verified for all major prefixes including T, U, V, and S. Specifically covers the SRM-225 (T983, U008), SRM-2620 (T942, U426, U787, U968), and SRM-3020 (U097, U337, U791, U982) series.

• Part Number: P021051520

• Brand: Genuine Echo / Shindaiwa (OEM)

• Application: Trimmers and Brushcutters

• Condition: Brand New in Original Packaging

🛠️ Mechanic's Pro-Tip: When installing your new gearbox, inspect the tip of your Internal Drive Cable. If it looks rounded or twisted, it will not seat correctly in the new gears and could cause a failure. Maintenance Tip: To extend the life of this assembly, add a pump of Echo Lithium Grease to the side-bolt port every 50 hours of use to keep the internal gears running cool under heavy loads.

We offer Fast & Tracked Shipping within 1 business day. We know that a broken gearbox means your crew is down—we ship genuine parts fast so you can get back to the route.

Click Buy It Now to secure your Genuine Echo Gear Case today!