When you’re rebuilding an Oliver tractor engine and find the crankshaft has been machined undersize, you need bearings that’ll match. This Tisco connecting rod bearing is exactly what you’re looking for—it’s manufactured .020 inch undersized to work with a machined crankshaft, giving you the proper clearances for reliable oil pressure and long engine life.
What You’re Getting
- Precision-manufactured to .020 inch undersized specs for machined crankshafts
- Quality bearing material that handles the loads and heat cycles of diesel operation
- Proper clearances to maintain oil pressure and prevent bearing knock
- Direct replacement for Oliver tractors requiring undersized bearings
- Professional-grade construction that’ll stand up to years of farm work
Built for Real Farm Work
This bearing fits Oliver tractors that have had their crankshafts machined during engine rebuilds. Whether you’re putting a Super 77, 770, or other Oliver model back together after a major overhaul, having the right bearing size is critical for proper engine operation. These tractors were workhorses in their day and are still earning their keep on farms across the country.
Made to Last
Tisco builds these bearings to handle the constant reciprocating loads and temperature cycling that come with tractor engine operation. The bearing material is formulated to work with proper lubrication while resisting wear from the high pressures of combustion and the stress of field work.
Good to Know
This is a precision part—make sure your crankshaft has been machined exactly .020 inch undersize before installation. During assembly, torque connecting rod bolts to spec and check bearing clearances with plastigauge. Clean oil passages thoroughly and use fresh oil and filters to protect your investment in the rebuild.







