Liftmaster K08-50850, END CAP, SAFETY INTERLINK
The LiftMaster K08-50850 safety interlink end cap is a replacement hardware component used in select LiftMaster commercial gate operator assemblies. In the operator parts layout, this end cap is part of the safety interlink hardware group and is intended to support proper mechanical assembly of that area. When the original end cap is broken, missing, or distorted, the surrounding parts may not sit correctly, which can lead to looseness, abnormal wear, or unreliable hardware alignment. Because the word safety appears in the part description, it is especially important not to treat this as a generic cap or field-fabricated item. The correct part should be matched to the exact operator drawing and installed without bypassing monitored safety devices, required guards, or factory hardware. If the gate system is moving unpredictably, has missing entrapment protection, or shows damaged high-voltage wiring, a qualified gate technician should inspect the full system.
Compatible With
- Select LiftMaster commercial gate operators using K08-50850 in the parts diagram
- LiftMaster gate operator safety interlink assemblies calling for part 08-50850
- Commercial gate operator hardware applications where the original end cap is marked or listed as K08-50850
Compatibility should be verified by the original part number, operator model, and LiftMaster parts diagram. Similar-looking gate and access-control parts may not be interchangeable across model generations.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Safety interlink end cap |
| Part Number | K08-50850 |
| Application | Commercial gate operator interlink hardware repair |
| Compatible Operator Type | Select commercial gate operators |
| Material / Finish | Cast or formed hardware component; verify against original part |
| Notes | Match by parts diagram; do not bypass safety-related assemblies |
Also Known As / Related Part Numbers
- K08-50850
- 08-50850
- LM-K08-50850
- LiftMaster K08-50850
- LIF-K08-50850
- Safety interlink end cap
Related numbers are included to help with part lookup and cross-reference searches. Do not treat a related number as a direct replacement unless it matches the original parts diagram for your equipment.
Technician Note
Before replacing this part, inspect the surrounding hardware and the reason the original part failed. Bent brackets, worn bushings, loose fasteners, water intrusion, damaged covers, gate bind, or incorrect previous repairs can cause repeat failures even after the correct replacement part is installed.
Before Ordering
- Confirm the manufacturer part number on the original part or parts diagram.
- Verify the exact operator, keypad, telephone entry, or access-control model.
- Compare mounting points, cover shape, length, handedness, and related hardware where applicable.
- Check whether companion parts are damaged or missing.
- Do not bypass required safety devices or modify factory safety-related assemblies.
Professional Advisory
Gate and commercial operator parts can involve heavy moving assemblies, stored mechanical force, and high-voltage wiring. If the system has unsafe movement, missing safety devices, damaged wiring, or alignment problems, have the equipment inspected by a qualified gate or commercial door technician before returning it to service.
Product Questions & Answers
What is K08-50850 used for?
K08-50850 is a replacement safety interlink end cap for select LiftMaster commercial gate operator hardware assemblies.
Is this part universal for all LiftMaster gate operators?
No. It should only be used where K08-50850 or 08-50850 is shown in the operator parts diagram.
Why is exact fitment important on a safety interlink part?
Incorrect or modified hardware can affect alignment and may create unsafe gate operation. Safety-related assemblies should be repaired with the correct part.
What should I inspect with this end cap?
Check the surrounding bracket, interlink hardware, fasteners, wear points, and any required safety devices before returning the operator to service.
Can I bypass the interlink or safety devices if this part is damaged?
No. Do not bypass safety devices or safety-related hardware. If the system cannot be repaired safely, have it inspected by a qualified gate technician.
