Flange Side Hd30b - Part obsolete, USE 02-3973-31

For technicians working on Multiple brands equipment, Flange Side HD30B is identified by part number 02-3973-01 for replacement. Model reference(s) in the listing name include HD30B. The listing indicates this part is superseded by 02-3973-31. Depending on installation, failure can present as wear, intermittent operation, abnormal noise, or a cycle that won’t complete normally. If the fault changes with vibration or after moving panels, look for borderline fitment and loose connectors in the same area. This replacement component supports normal operation by restoring fit, sealing, alignment, or control behavior. Match the part number 02-3973-01 to the old component before ordering, then reinstall with careful alignment and routing. A correct-fit replacement helps restore predictable operation and reduces repeat service calls. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. If the part interacts with water, do a leak check during the first run and again after a short operating period. If the part interacts with water, do a leak check during the first run and again after a short operating period. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. If the part interacts with water, do a leak check during the first run and again after a short operating period. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces.