Heavy Duty Flywheel for Massey Ferguson 399, 4260, 4270 Tractors with Phaser 1006.6 Engine

Description

When your Massey Ferguson with that Phaser engine starts shaking like a paint mixer, it’s not just annoying—it’s expensive trouble waiting to happen. A damaged flywheel can destroy your clutch, damage your crankshaft, and leave you stranded in the middle of planting season. This heavy-duty 13-inch replacement flywheel gets your power delivery smooth again, eliminating those vibrations that have been rattling your teeth and wearing out expensive drivetrain components.

What You’re Getting

• Precision-balanced construction that eliminates harmful vibrations from day one
• Over 30kg of rotational mass that stores energy for smooth power delivery under load
• Machined clutch surface provides proper friction characteristics for positive engagement
• Heavy-duty design specifically engineered for the high-torque output of Phaser engines
• Direct replacement that bolts right up—no modifications needed

Built for Real Farm Work

Your MF 399, 4260, or 4270 with that Phaser 1006.6 is a serious workhorse built for heavy pulling power. Whether you’re running large tillage equipment, powering forage harvesters, or pulling heavy grain carts through tough conditions, this flywheel stores energy between power strokes to prevent the lugging and stalling that happens with a damaged unit. It’s especially critical during PTO work where consistent shaft speed means the difference between good results and equipment damage.

Made to Last

The Phaser 1006.6 is a high-output engine, and this flywheel is built to handle every bit of its torque. At over 30kg, it provides the rotational mass needed to keep your engine running smoothly under varying loads. The precision balancing eliminates vibrations that destroy clutches, wear out pilot bearings, and fatigue operators.

Installation Notes

This is a major job requiring transmission removal, so most operators combine it with clutch replacement while everything’s apart. Due to its weight, this requires freight delivery—plan accordingly. Before installing, have the flywheel checked for runout by a machine shop, inspect your crankshaft rear seal and pilot bearing, and use new flywheel bolts torqued to specification with thread locker. Many operators find their “engine problems” disappear after installing a properly balanced flywheel.