Crown Wheel Pinion 12X47 (Short)

This Crown Wheel & Pinion Set (OEM # 4974448) is engineered for Fiat tractors requiring a compact differential solution. Featuring a 12:47 gear ratio (12 teeth on the pinion, 47 on the crown wheel), it prioritizes high torque output for heavy-load tasks like plowing, tilling, or hauling. The "Short" designation indicates a pinion shaft optimized for smaller differential housings, ensuring compatibility with specific Fiat models. Crafted from heat-treated hardened steel, the set resists wear, pitting, and thermal stress, delivering durability in rugged farming conditions. Precision tooth profiling minimizes noise and vibration, even under extreme loads, while maintaining smooth power delivery.

The OEM-grade design guarantees seamless integration with Fiat’s differential systems, restoring factory performance and reliability. The hardened steel construction enhances resistance to mechanical fatigue, critical for tractors operating in muddy, rocky, or uneven terrain. Ideal for repairs or upgrades, this 12X47 set ensures minimal downtime and maximizes drivetrain efficiency. Applications include Fiat tractors used in agriculture, construction, or forestry, where space constraints demand a compact yet robust gear configuration.

Rigorously tested to meet Fiat’s OEM standards (part # 4974448), this set is trusted by technicians and farmers. Proper installation requires precise gear alignment, lubrication with EP-90 gear oil, and adherence to torque specifications. Follow the manufacturer’s break-in procedure (e.g., gradual load increase) to optimize lifespan and performance.