Complete Tractor Light Switch For Massey Ferguson - 772954M1 504812M1 522812M1 100% new light switch meets OEM quality for tractors and farm equipment 1-year warranty covers you throughout planting and harvesting seasons Factory direct pricing delivers an honest value for hard-earned money Replaces OEM Numbers: Massey Ferguson: 504812M1, 522812M1, 772954M1 Specs: Note : Four post rotary switch, 25 amp max.