Feature Rebuild Your Pool Cleaner: The R0995100 tune up kit rebuild parts kit is compatible with Polaris Quattro P40 P4000 Pressure Side Automatic Pool Cleaner. By replacing worn-out components, ensure perfect fit and optimal functionality Comprehensive Replacement Parts: Come with necessary components for a complete tune-up. Include 1 Gearbox Assembly, 1 Drive Shaft, 2 Cyclonic Turbines, 2 Brush Gearboxs, 4 Axles, 8 Wheel Bearings Enhanced Performance: Restore the cleaner to original operational capabilities and provide power to various cleaning movements. Ensure that all components in proper working condition to maintain a clear pool area .