When your Perkins 3.152 engine starts knocking or you're hearing that telltale rod bearing knock during heavy pulls, it's time to address those worn connecting rod bearings before you crack a cylinder wall or throw a rod. These standard size big end bearings are made specifically for the 3 cylinder Perkins diesel engine that powers so many reliable farm tractors. Fresh bearings restore proper oil clearance and eliminate that worrying engine noise that keeps you up at night. What You're Getting Standard bore connecting rod bearings engineered for Perkins 3.152 engines Proper oil clearance specifications that restore quiet, smooth operation Quality construction built to handle the constant stress of field work Complete bearing set for all connecting rods in your 3-cylinder engine Built for Real Farm Work This fits the iconic British tractors powered by legendary Perkins 3.152 engines, including the popular Massey Ferguson 35, 135, 148, 240, and 550 series . Whether you're running a compact utility tractor for loader work around the barn or a larger model for field cultivation, these engines are known for their reliability when properly maintained. The Perkins 3.152 has powered countless hours of plowing, discing, mowing, and general farm work. Made to Last Engine bearings take tremendous abuse from the constant pressure and heat of diesel combustion. These bearings provide critical protection for engine components by maintaining proper oil films between moving parts. Quality bearing material handles the demanding conditions of agricultural use where engines run at full load for extended periods. Installation Notes Big end bearing replacement requires complete engine disassembly and proper machinist skills. Check connecting rod and crankshaft surfaces for scoring or damage before installing new bearings. Use proper torque specifications and plastigauge to verify bearing clearances. It's also a good time to inspect other engine internals while you've got everything apart.