Part numbers 76044, 75304517, 7380919, 7380919A, 7380919B, 7380887 Replaces older part numbers 7383056P, 7383056, and 7380919A Key features Function: replacement spline shaft designed for lawn tractor transmission and deck drive applications Size: 5/8inch spline by 22.08inch overall length for direct fit on compatible machines Fit and performance: precise spline dimensions and accurate length help ensure correct engagement and reliable power transfer Compatibility: built to match the fit requirements for the listed models below, simplifying repairs and reducing fitment issues Compatibility (examples) Compatible with Craftsman models LT1500, T1000, LT2000, LT2500 for Murray models M17542, M19542, M20046, M12538, M12538, M1642, M15542, M19546 Compatible with White Outdoor LT12, LT125, LT13, LT14, LT15, LT145, LT155, LT16, LT165, LT175, LT18, LT185, LT3800, LT4200 Compatible with MTD models LT1500, LT1800, LT2200, LT942H, LT946H, LT1650, T100 Compatible with Troy Bilt LTX1842, LTX2146, TB42, TB46 Benefits and why you need it Restores operation when the original spline shaft is worn, bent, or broken, preventing slipping and loss of drive Exactmatch dimensions reduce the need for modification, saving time during and maintenance Using a correct replacement shaft helps maintain smooth power delivery to the deck and transmission, reducing vibration and premature wear on connected parts Typical applications a worn or damaged spline shaft during routine mower maintenance to restore proper deck engagement Emergency field after a shaft failure to get a riding mower back into service quickly Preseason maintenance upgrade to address wear before heavy mowing season to avoid unexpected downtime What to check before ordering Verify the part number and legacy numbers on your original component Confirm the spline size 5/8 inch and overall length 22.08 inches match your equipment requirements Crosscheck compatibility with your model listed above to ensure correct fit This replacement spline shaft provides the specified spline dimension and length for directfit repairs on the referenced lawn tractor models, helping restore reliable power transfer and reduce equipment downtime.