Description
Product Overview
The MTD 917-04383 is a precision‑engineered right‑hand worm gear featuring 30 hardened steel teeth. Designed specifically for Troy‑Bilt equipment, this gear provides a direct replacement for original part numbers GW‑1904279, 717‑04383, and 1904279. Its compact dimensions—10 x 6 x 1 inches—and lightweight construction (1.25 lb) make it an ideal fit for a range of models, including Pony ES, Horse, Bronco, Mini, and Colt tractors. The gear’s robust steel composition resists wear, reduces noise, and ensures consistent power transmission across the drivetrain, extending the service life of your equipment.
![[Product front view showing all components]](https://www.polvora.store/wp-content/uploads/2026/07/a9eaca581fcc413ea6e00ac0ed70ba7d.jpg)
Usage
This worm gear is suited for a variety of outdoor power equipment scenarios. Whether you are maintaining a residential lawn, tackling a garden plot, or operating a small farm, the gear delivers reliable torque conversion for rototillers, tillers, and lawn tractors. Its right‑hand orientation matches the standard configuration of Troy‑Bilt models, allowing seamless integration without the need for additional adapters. Users can expect smoother operation during mowing, tilling, and transport, reducing strain on the engine and improving overall efficiency.
Why Choose Us
Choosing the MTD 917-04383 means selecting a component backed by decades of engineering expertise in agricultural machinery. MTD’s commitment to quality is reflected in the gear’s heat‑treated steel, which offers superior hardness and resistance to deformation. Each unit undergoes rigorous testing to meet or exceed OEM specifications, guaranteeing a perfect fit and reliable performance. Additionally, the product includes a three‑month warranty, providing customers with confidence and support after purchase.
Key Features
- 30‑tooth hardened steel design delivers smooth power transfer and long‑lasting durability.
- Exact OEM fit for Troy‑Bilt Pony ES, Horse, Bronco, Mini and Colt models eliminates compatibility concerns.
- Compact size and lightweight construction simplify installation and reduce overall equipment weight.
- Right‑hand orientation matches factory specifications for hassle‑free replacement.
- Three‑month warranty and dedicated customer support ensure peace of mind after purchase.
FAQ
Is this gear compatible with all Troy‑Bilt models?
The gear is compatible with Pony ES, Horse, Bronco, Mini, and Colt models as listed in the product specifications. Always verify the model number in your equipment’s owner manual before purchasing.
What material is the gear made from?
The gear is forged from hardened steel, providing excellent wear resistance and strength for demanding agricultural applications.
How do I install the gear?
Installation involves removing the existing gear, aligning the new gear’s keyway with the shaft, and securing it with the original fasteners. Detailed instructions are included in the product package.
What is the warranty coverage?
The gear comes with a three‑month warranty covering manufacturing defects. Contact our support team for any warranty claims.
Can this gear be used for rototillers?
Yes, the gear’s design and torque capacity make it suitable for both lawn tractors and rototillers that use the same MTD drivetrain architecture.




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