Linear LDCO850 Replacement Parts
Genuine Linear replacement parts for the LDCO850 DC garage door operator. Use the diagram above to identify your part, then click any part number below to order. The head diagram is shared across the LDCO 841, 850, 852 and 863B — only the parts that fit the 850 are listed in the table below. The LDCO850 accepts either a belt-drive or chain-drive rail, so both rail types are listed.
Operator Head Parts
| Ref |
Part # |
Description |
| 4 |
HAE00058 |
LDCO encoder board |
| 7 |
HAE00057 |
LDCO motor (with encoder) |
| 8 |
HAE00075 |
PCBA logic board kit |
| 9 |
10012046 |
Transformer |
| 12 |
BATT54 |
Replacement battery, 12V |
| 13 |
BATT54BOX |
Battery and housing |
| 14 |
10015410-004 |
Battery housing |
| 16 |
10014504-01 |
LED panel |
| — |
228152 |
LDCO light lens — not shown in diagram above |
Rail Parts
| Ref |
Part # |
Description |
| 1 |
220499 |
HBT drive sprocket (belt rail) |
| 2 |
218954-03 |
HBT pulley and bracket (belt rail) |
| 3 |
HAE00022 |
HBT inner slide assembly (belt rail) |
| 4 |
218189-01 |
Trolley assembly (belt or chain rail) |
| 5 |
HAE00023 |
7 ft belt assembly |
| 6 |
HAE00033 |
8 ft belt assembly |
| 7 |
HAE00049 |
Drive sprocket holder and belt clamp — HBT belt rails only |
| 8 |
217436 |
HCT drive sprocket, 8 tooth (chain rail) |
| 9 |
227653 |
HCI drive sprocket, 10 tooth (chain rail) |
| 10 |
HAE00014 |
HCT pulley and bracket (chain rail) |
| 11 |
HAE00013 |
HCT turnbuckle assembly (chain rail) |
| 12 |
HAE00018 |
HCT inner slide assembly (chain rail) |
| 13 |
CSB |
Center support bracket |
| 14 |
HAE00015 |
7 ft chain assembly |
| 15 |
HAE00032 |
8 ft chain assembly |
| 16 |
HAE00017 |
10 ft chain assembly |
| 17 |
HAE00046 |
12 ft chain assembly |
Installation Parts
| Ref |
Part # |
Description |
| 1 |
227966 |
Door arm — straight |
| 2 |
227967 |
Door arm — bent |
| 3 |
HAE00087 |
Safety beam sender and receiver (with wire) |
| 4 |
220205-02 |
Complete hardware kit |
| 6 |
HAE00080 |
WiFi wall station |
| 7 |
HAE00044 |
Wire kit (15 sets of wire and clips) |
| 8 |
HAE00019 |
Wire clip kit (100 clips) |
| 9 |
HAE00020 |
Gel cap kit (100 pieces) |
