Description

When your Oliver starts knocking or you’ve got metal shavings floating in the oil, it’s time to face facts—those main bearings are telling you they’ve given all they can. Engine noise doesn’t get better on its own, and ignoring worn mains is a fast track to crankshaft damage that’ll cost you thousands instead of hundreds. This complete main bearing kit gets your P354D engine back to running smooth and quiet, the way it did when it rolled off the line.

What You’re Getting

Complete set of standard-size main bearings for proper crankshaft support
Precision-manufactured to original specifications for perfect fit and clearance
High-quality materials that handle the loads and heat of farm work
All bearings needed for a complete engine rebuild—no hunting for individual pieces

Built for Real Farm Work

Oliver’s P354D engine powered some of the most reliable tractors ever built, from the 770 up through larger models that handled everything from plowing to heavy tillage. These engines were designed to run all day without complaint, but even the toughest bearings wear out after decades of hard use. Whether you’re rebuilding for another season of farming or restoring a classic Oliver, this kit gives you the foundation for years of reliable service.

Made to Last

Main bearings take the full weight and power of your engine’s crankshaft, so there’s no room for shortcuts. These bearings are manufactured to handle the constant loads, vibration, and temperature swings that come with agricultural work. Quality construction means they’ll hold proper oil clearances and keep that crankshaft supported where it needs to be.

Installation Notes

Main bearing replacement is serious engine work that requires proper tools and experience. Check crankshaft journals for scoring or out-of-round conditions before assembly—new bearings won’t fix a damaged crank. Proper torque specifications and clearance measurements are critical for long service life. If you’re not comfortable with internal engine work, this is a job for an experienced mechanic.