The Lochinvar & A.O. Smith 100327308 is an OEM replacement 3J-style shaft coupler designed to deliver dependable power transmission in boiler and water heater system applications. With a 1/2″ bore on one end and a 5/8″ bore on the other, this coupler accommodates mismatched shaft sizes commonly found in pump and motor drive assemblies, making it an essential component for maintaining efficient system operation.
Key Features
- OEM replacement coupler engineered to Lochinvar & A.O. Smith specifications
- 3J-style jaw coupler design for positive, flexible power transmission
- Dual-bore configuration: 1/2″ x 5/8″ to connect shafts of differing diameters
- Absorbs vibration and accommodates minor shaft misalignment
- Designed for use in boiler, water heater, and hydronic pump drive assemblies
- Direct OEM fit helps minimize installation time and ensures proper performance
Product Specifications
- SKU: 100327308
- Coupler Type: 3J Jaw Coupler
- Bore Size: 1/2″ x 5/8″
- Brand: Lochinvar & A.O. Smith
- Application: Boiler, water heater, and hydronic system pump/motor drives
Application
This coupler is a direct OEM replacement for Lochinvar and A.O. Smith boiler and water heater systems requiring a 3J-style jaw coupler. It is ideal for service technicians performing routine maintenance or component replacement on pump and motor drive assemblies where reliable shaft coupling is critical to system performance.
