This high-performance Massey Ferguson Alternator – 3933142M91 is engineered to provide consistent power output across a wide range of tractor models. Designed as a replacement for OEM applications, it supports optimal electrical performance for essential functions like lighting, instrumentation, and battery charging in older and modern machines alike.
The alternator fits numerous Massey Ferguson tractor ranges including the 1000, 200, 300, 3000, 3100, 3600, 600, 6100, and 8000 Series. It is also compatible with Massey Ferguson combines in the Pre-100 Series. Case/IH applications include models across the 32, 3200 Utility, 4200 Utility, 74, 84, 85, and 95 Utility Series. Additional fitments extend to International Harvester, Leyland, and David Brown machines. Shaft diameter may vary by tractor; please contact us for serial-based compatibility.
Built to OEM specification with premium internal components, this alternator ensures consistent voltage regulation and long-term reliability in field or industrial conditions. Each unit is rigorously tested to match original factory performance for peace of mind in operation.
Ideal for agricultural mechanics, tractor restoration professionals, and maintenance engineers working with older MF, IH, David Brown, or Leyland machines in need of a trusted replacement part that keeps equipment running reliably.
Key Features
✔️ 12V alternator compatible with Massey Ferguson & Case/IH models
✔️ Fits MF 1000–8000 Series, Case IH 32–95 Series, David Brown, Leyland
✔️ OEM-level replacement with reliable voltage regulation
✔️ Built for field durability in agricultural & utility applications
✔️ Requires shaft diameter confirmation for correct fitment
✔️ Tested for high electrical performance and long service life
🌟 Perfect for: tractor servicing, equipment restoration, agricultural maintenance