⚠️ Fitment note: The Make/Model filter is for guidance only. Please verify model / year / engine size in the product description before purchase. The product description is the definitive fitment reference. If you’re unsure, message us and we’ll confirm fitment. YAMAHA YZ125 2001-2004, Heavy Duty OEM Replacement crankshaft.- Includes VCR connecting rod.- Factory-assembled and trued to meet or surpass OEM specifications.- Exact OEM measurements and fittings- Meets or exceeds OEM specifications- Ready for installation to provide hours of reliable service.- Completely rebuildable.- Please see image before ordering to avoid mistakes.- ORO products are a high quality replacement part and carries our guarantee of your satisfaction.Part No. 56-182_HR Note. This is for Crankshaft assy. only no main bearings or gaskets. Cross reference numbers ONLY. 5MV-11400-00-00, Hot Rods 4036, Western Powersports #: 421-4036Parts Unlimited #: H125X, Tucker Rocky #: 164131, Southern #: HR004036Automatic Distributor's #: 870155