Description
Nothing stops field work faster than engine bearing failure. When you’re hearing that telltale knocking sound or seeing metal shavings in your oil, it’s time for main bearings. Whether you’re running a disk, planting corn, cutting silage, or pulling heavy implements, a properly sealed engine keeps you working when you need it most. This 30 thou main end bearing set is precisely sized for your 1104C engine to restore proper crankshaft support and keep your tractor running strong.
What You’re Getting
- 30 thou oversized bearings to compensate for crankshaft wear – perfect for rebuilds where the crank has been machined
- Quality bearing material designed to handle the loads and heat of diesel operation in demanding farm conditions
- Complete set gives you all the main bearings needed for one complete engine rebuild
- Proper oil clearances restore engine oil pressure and reduce bearing noise
- Built to handle the constant stress of PTO work, heavy pulling, and long operating hours
Built for Real Farm Work
These bearings fit the 1104C engines found in hardworking Massey Ferguson 5400 and 6400 series tractors – machines that handle everything from hay operations to heavy tillage work. These Massey Ferguson tractors powered by Perkins engines are workhorses found on farms running everything from grain operations to cattle ranches. Whether you’re running a 5445 on a dairy operation or using a 6470 for commercial farming, these engines take a beating and need quality bearings that won’t quit.
Made to Last
Engine bearings are one of those parts where quality really matters. These bearings are manufactured to handle the thermal cycling, heavy loads, and contamination that come with farm life. The gasket materials are designed to handle the thermal cycling and high pressures of diesel operation without blowing out or losing compression. The bearing material provides proper oil film strength while resisting wear from dirt and debris that inevitably finds its way into farm equipment.
Good to Know
Main bearing replacement is a major rebuild job that requires splitting the tractor and removing the crankshaft. The 30 thou specification means your crankshaft has been machined 0.030 inches undersize to remove wear and restore proper surface finish. Always check bearing clearances with Plastigage during installation and verify oil pump pressure after rebuild. This is typically a job for an experienced mechanic with proper lifting equipment and measuring tools.
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