When that knocking sound starts echoing from under the hood, it's not going away on its own—it's your crankshaft telling you it's time for serious business. This heavy-duty replacement crankshaft fits a huge range of workhorses running the reliable Perkins 1004.4T engine. Whether you're dealing with spun bearings, worn journals, or just tired of adding oil every week, this forged steel powerhouse brings your engine back from the dead. Key Features 3-bolt nose design ensures secure flywheel attachment and proper alignment Forged steel construction weighs over 30kg for maximum durability Direct replacement—no modifications or adapters needed Compatible with both Perkins 1004.40 (Green) and 1004.40TW (Blue) engines Precision-machined journals ready for standard bearings Built for Real Farm Work This crankshaft serves the reliable mid-range tractors that form the backbone of farming operations—machines pulling planters through spring fields, running balers during hay season, and powering feed mixers year-round. These tractors are too valuable to scrap but need major engine work to keep earning their keep. Whether you're rebuilding after catastrophic failure or being proactive during winter overhaul, this crankshaft is your foundation for another decade of dependable service. Made to Last At over 30kg of forged steel, this isn't some lightweight replacement part. The 3-bolt nose configuration provides positive flywheel location and prevents the vibration issues that plague worn engines. The precision-machined surfaces and heat-treated construction handle the constant stress of diesel operation, from cold morning starts to long days under load. Installation Notes This is a freight item that ships on a skid due to its weight, so coordinate delivery when you'll have help unloading. While you're waiting, get your block checked for cracks and order your rebuild kit with properly sized bearings. Use plastigage to verify bearing clearances during assembly, and don't forget to pre-lube everything with assembly paste. A crankshaft this heavy needs proper support during installation—don't let it hang on the rear main seal.