Doosan DE12 Engine Crankshaft, Original OEM DE12 Diesel Engine

This genuine Doosan DE12 engine crankshaft is an original OEM DE12 diesel engine crankshaft and core heavy-duty Doosan excavator engine crankshaft, serving as a premium DE12 engine replacement parts for Doosan DE12 industrial diesel engines widely equipped on large excavators, generator sets and engineering machinery. As the most critical power transmission component of the engine, this heavy duty engine crankshaft adopts integral precision forging and overall quenching & tempering process, featuring high rigidity, strong impact resistance and low torsional deformation. It perfectly solves common failures of old crankshafts including bending deformation, journal wear, fracture and abnormal engine vibration. With strict original factory dimensional tolerance and dynamic balance calibration, it delivers stable power output, effectively reduces engine fuel consumption and failure rate, and greatly extends the service life of DE12 diesel engines. It is the most reliable original Doosan generator crankshaft and engineering machinery crankshaft replacement accessory for equipment overhaul and daily maintenance.

Product Parameters

Product Working Principle

As the core power conversion component of Doosan DE12 diesel engine, the DE12 engine crankshaft cooperates with engine pistons and connecting rods to complete power conversion and output. During engine operation, the high-pressure gas generated by cylinder combustion pushes the piston to perform linear reciprocating motion. Through the connecting rod transmission, the linear mechanical force is converted into rotating torque by the crankshaft. The crankshaft drives the engine flywheel and auxiliary accessories to rotate stably, realizing continuous power output of the diesel engine. Relying on high structural rigidity and dynamic balance performance, it offsets torsional vibration and inertial impact during high-speed operation, ensures stable engine speed, uniform power output, and effectively avoids power jitter, abnormal noise and mechanical failure caused by crankshaft deformation and wear.

Company Service

We are a professional manufacturer and original parts supplier of Doosan diesel engine accessories, focusing on the mass supply of Doosan DE12 engine crankshaft, DE12 diesel engine crankshaft and full series Doosan engine crankshafts, bearings, piston assemblies and wearing parts. All products comply with original OEM standards, with stable quality and complete specifications. We support sample testing, small-batch trial orders and large-scale global wholesale. Sufficient spot inventory ensures fast delivery worldwide. We provide one-stop professional services: pre-sales model parameter matching consultation, installation technical guidance, after-sales fault solution and long-term quality warranty. We stably serve global construction machinery dealers, generator equipment maintenance companies and engineering fleet enterprises all year round.