The Reducing Bushing also referred to as a reducer bushing, is used to reduce or increase a pipe thread size. A Reducing Bushing is also known as a shock bushing as well as a vibration isolator that gives an advantage between two parts without any lubrication.Attributes: Improves efficiency and reduces vibration and noise No risk of corrosion, they can be used in wet environments Provides a more secure connection than bushings Provides less heat and wearApplications:The Reducing Bushing is used in the air starting motor, and engine oil temperature sensor for reduction in connection sizes.