At Filters and Parts Solution, we are dedicated to ensuring your equipment runs smoothly and your business thrives. Every day, we work hard to deliver top-quality spare parts you can trust.



OEM Governor throttle Motor 525-4480 525-4479 525-4478 Fits Caterpillar 301.7 303.5E2 305E2

Sale price $599.99 Regular price $849.99

Shipping calculated at checkout.

Parts Available.

6 Months Factory warranty

Engineered to the high standards set by industry leaders like Caterpillar, this OEM-spec governor electric motor delivers precise speed control and dependable throttle response in demanding environments. Each unit is endurance-, vibration-, and temperature-tested against strict benchmarks to ensure stable RPM regulation, smooth idle, and quick load recovery—shift after shift.

With immediate availability and a comprehensive warranty, this governor motor helps prevent hunting and surging, improves fuel efficiency, and protects engine components by maintaining accurate governing across the full operating range. Rugged construction, sealed electronics, and OEM-grade connectors provide reliable performance in dust, heat, and vibration

Fit to Models:

Caterpillar 525-4480, 379-0803, 525-4479, 525-4478, 379-0802, 

301.5, 301.6, 301.7CR, 301.8, 302.7CR, 302CR, 303 SR, 303.5CR, 303.5E, 303.5E2, 303.5E2 CR, 303CR, 304CR, 304E, 304E2, 304E2 CR, 304SR, 305 CR, 305.5E, 305.5E2, 305.5E2 CR, 305E, 305E2, 305E2 CR, 306, 306.5, 306E, 306E2, 307, 307.5, 307E, 307E2, 308.5, 308E, 308E CR, 308E SR, 308E2, 310