Chamberlain PD752D Chain Drive Replacement Parts

Chamberlain PD752D Replacement Parts

Genuine replacement parts for the Chamberlain PD752D chain drive garage door opener. Each section below has its own diagram and its own numbering starting at 1, so match the section name as well as the reference number. Click any part number to order.

Motor Unit Assembly Parts

Chamberlain PD752D chain drive garage door opener motor unit parts diagram
Ref Part Number Description
1 041A5615 Chain spreader
2 041A5585 Gear and sprocket assembly. Includes spring washer, thrust washer, retaining ring, bearing plate, roll pins, drive gear, worm gear, helical gear with retainer and grease
3 041A2817 Drive and worm gear kit with grease and roll pins
4 041B4245-1 Line cord, 6 ft
5 41A5484-1 End panel with all labels
6 4A1344 Light socket
7 108D79 Light lens
8C 41A5637 Resistor
9 41A3150 Terminal block with screws
10 41D5563-1 Universal replacement motor and bracket assembly. Includes motor, worm, bracket, bearing assembly and RPM sensor
13 041D3452-2 Limit switch assembly
14 041A2822-1 Interrupter cup
16 041AC075-2S Receiver logic board assembly. Includes logic board, end panel with all labels and light socket
17 41C5588 High voltage wire harness
17 041C4398A RPM sensor assembly
18 41D180-1 End panel with all labels
41A2825 Opener assembly hardware kit (not shown)

Rail Assembly Parts

Chamberlain PD752D chain drive rail assembly parts diagram
Ref Part Number Description
1 4A1008 Master link kit
2 41C5141-1 Complete trolley assembly
3 41A5665-2 Complete rail
4 144C56 Idler pulley
5 041A5807-3 Chain and cable — 7 ft door, square rail
6 12D598-1 "U" bracket
183A163 Wear pads (not shown)

Installation Parts

Chamberlain PD752D installation parts diagram, control panel, brackets, door arms and sensors
Ref Part Number Description
3 10A20 3V CR2032 lithium battery
4 29B137 Remote control visor clip
5 41A2828 Emergency release rope and handle assembly
6 41B4494-1 2-conductor bell wire, white and white/red
7 41A5047-1 Door bracket with clevis pin and fastener
8 41A5047-2 Header bracket with clevis pin and fastener
9 041-0136 Safety sensor kit, sending and receiving eyes with 3 ft bell wire. Replaces the 41A5034 shown on the diagram
10 178B34 Straight door arm section
11 12B776 Hanging bracket
12 178B35 Curved door arm section
13 041-0155-000 Safety sensor brackets, pair. Replaces the 41A5266-1 shown on the diagram
41A5258-9 Installation hardware bag (not shown)
041-0365-000 Sensor eyes and brackets together, 1997 to current (not shown)

Superseded Part Numbers

The diagrams print the original numbers. These parts are now supplied under new numbers — order the current part.

Ref Number on diagram Order this instead
Motor 16 41AC075-2 041AC075-2S receiver logic board
Motor 10 41D5563 41D5563-1 universal motor and bracket assembly
Install 9 41A5034 041-0136 safety sensor kit
Install 13 41A5266-1 041-0155-000 sensor brackets
Chamberlain and LiftMaster share parts. Both brands are made by the same manufacturer and most PD752D components carry LiftMaster part numbers. A LiftMaster-branded part with the correct number is the right part.