Chamberlain B373 Garage Door Opener Parts Diagram and List - Chamberlain

The Chamberlain B373 garage door openers use a DC motor with a full belt rail assembly. This model has a single, wifi and battery back up. Use our parts diagram for reference with all available parts listed below.

The Chamberlain B373 garage door openers use a DC motor with a full belt rail assembly. This model has a single, wifi and battery back up. Use our parts diagram for reference with all available parts listed below.
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- Chamberlain 41A7276 Wear Pads Square Rail (4)SKU: 41A7276$8.22 As low as $7.40Genuine Chamberlain 41A7276 Wear Pads Square Rail (4) —…
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- Interstate CR2032 3V BatterySKU: CR2032$5.61 As low as $2.81Interstate CR2032 3V Battery: lithium coin cell designed…
- LiftMaster 4A1008 Master Link KitSKU: 4A1008$9.86 As low as $8.87OEM LiftMaster 4A1008 Master Link Kit for chain‑drive…
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- LiftMaster 041A6689 Inner Trolley Shaft, Belt DriveSKU: 041A6689$10.36 As low as $9.32Genuine LiftMaster 041A6689 Inner Trolley Shaft, Belt…
- LiftMaster 178B35 Curved Door Arm SectionSKU: 178B35$14.70 As low as $13.23Genuine LiftMaster 178B35 Curved Door Arm Section for…
- LiftMaster 178B34 Straight Door Arm SectionSKU: 178B34$16.91 As low as $15.22Genuine LiftMaster 178B34 Straight Door Arm Section OEM…
- Chamberlain 41A5250 Full Belt Assembly 7'SKU: 41A5250$137.81 As low as $124.03Chamberlain 41A5250 Full Belt Assembly 7'
- LiftMaster 050DCTBMC Logic BoardSKU: 050DCTB$157.78 As low as $142.00Genuine LiftMaster 050DCTBMC Logic Board — OEM…
- Chamberlain 041A5047-2 Header Bracket KitSKU: 041A5047-2$18.23 As low as $16.41Compatible with Chamberlain garage door opener models:…
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- LiftMaster 41A2828 Emergency Release Rope and Handle AssemblySKU: 41A2828$12.62 As low as $11.36Genuine LiftMaster 41A2828 (also 041A2828) Emergency…





















