Overview – Engine Parts FLYWHEEL 1113415850
1113415850 is the flywheel used on HITACHI excavator diesel engines to carry the starter ring gear and smooth the rotation of the crankshaft during operation. We can supply this flywheel as well as the related family numbers listed below, in stock or available on order – welcome to enquire by part number.
Parts Characteristics
The flywheel is a machined cast iron disc built to the original bolt pattern, diameter and ring gear specification, matched to the HITACHI engine crankshaft flange. The friction face is machined flat to accept the clutch or flexplate, and the starter ring gear is fitted to the original tooth count. The balance and mass follow the original design so the engine idles and accelerates as intended. As an OEM-spec flywheel, it bolts directly to the crankshaft without machining.
Applicable Models & Applications
This flywheel is used on HITACHI excavators and related machines where the engine flywheel must match the original crankshaft flange and starter drive. The family references 1113415900, 1123313773, 280808450, 286808200, 288914450, 288914600, 440112350, 5123360081, 8943930702, 8943974961, 8980446990, 8980801690 and others cover the same duty on adjacent engine builds. Confirm the bolt pattern, diameter and ring gear tooth count against the flywheel removed from your engine before ordering.
Maintenance & Replacement
Inspect the flywheel when starting problems, clutch slip or vibration appear, looking for worn ring gear teeth, a scored friction face and cracks around the bolt holes. Check the ring gear for chipped or rounded teeth before blaming the starter. When replacing, clean the crankshaft flange, fit the flywheel with new bolts to the original torque and pattern, and verify the ring gear meshes correctly with the starter pinion.
Price Reference (USD)
The reference price for this Engine Parts FLYWHEEL (1113415850) is approximately USD 150 – 650 per unit depending on grade, quantity and shipping destination. This is a planning estimate only – confirm current pricing and availability with our sales team before ordering.
Also in the FLYWHEEL Series
1113415900, 1123313773, 280808450, 286808200, 288914450, 288914600, 440112350, 5123360081, 8943930702, 8943974961, 8980446990, 8980801690, 8981094711, 8981095650, 8981519330, 8982269740, 8982269770, 8982349000, 8982349130, 8983950600 and more.
Value & Service
A mismatched flywheel can damage the starter drive and clutch, so we verify 1113415850 against the original HITACHI crankshaft flange and ring gear specification before dispatch. We stock the flywheel and the family numbers listed above, and they can ship together with the flywheel bolts and clutch parts in one tracked order. Our team will confirm the correct flywheel for your engine build before you buy.
Racer Machinery is a dedicated construction-machinery parts supplier – send us your part number and machine model, and we will confirm fitment, price and lead time for this flywheel and related HITACHI engine components.
