LiftMaster K75-50132 Turn Buckle Kit Q076 for HCT Operators
The LiftMaster K75-50132 is a turn buckle kit used on HCT Hercules overhead operator systems to adjust and maintain drive chain or linkage tension. The turn buckle is a mechanical adjustment part, but it has a direct effect on how smoothly the operator runs. If it is worn, corroded, bent, or stripped, the operator may develop slack, noise, inconsistent movement, or chain alignment problems. This part is commonly listed as Elite Q076 and is associated with LiftMaster HCT perimeter access systems. Additional references call out Hercules HCT5011 and HCTDCUL operator applications. During service, inspect the related chain, sprockets, mounting points, and limit hardware, because installing a new turn buckle into a worn or misaligned drive system may not solve the underlying problem.
Compatible With
- LiftMaster HCT perimeter access systems that list K75-50132
- LiftMaster HCT Hercules overhead gate operators
- Elite Hercules operator applications using Q076 turn buckle reference
- HCTDC / HCTDCUL operator references when the parts diagram lists K75-50132 or Q076
- HCT5011 Hercules references where K75-50132 is shown as the chain turn buckle
- Not universal for all overhead, commercial door, or gate operators; thread, length, and load requirements must match
Features and Specifications
| Manufacturer | LiftMaster |
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| Product Type | Turn buckle kit |
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| Part Number | K75-50132 |
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| Related Numbers | Q076 |
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| Application | Chain / linkage tension adjustment |
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| Compatible Operator Type | LiftMaster HCT / Hercules overhead operator systems |
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| Common Model References | HCT, HCTDCUL, HCT5011 when shown in the parts diagram |
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| Notes | Inspect chain, sprockets, and alignment during replacement |
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Also Known As / Related Part Numbers
- K75-50132
- Q076
- Elite Q076
- LM-K75-50132
- LiftMaster K7550132
- LiftMaster 7550132
- Chain turn buckle
- Turn buckle kit
Technician Note
This part should be matched by the operator model, original part number, and replacement parts diagram. Similar LiftMaster parts can look close but differ by switch rating, actuator style, chain length, bracket geometry, mounting pattern, or operator generation.
Before Ordering
- Confirm the manufacturer part number on the old part or parts diagram.
- Match the operator model and production series, not just the product family name.
- Compare physical mounting points, terminals, actuator style, chain length, or bracket layout where applicable.
- Check nearby worn parts that may have caused the original failure.
- For electrical switch replacement or unsafe gate movement, use a qualified gate or commercial door technician.
Professional Advisory
Gate and commercial door operators are heavy moving systems. Do not bypass monitored safety devices, limit controls, stop circuits, or required entrapment protection to keep an operator running. If the operator has high-voltage wiring issues, damaged controls, missing safety devices, or unpredictable movement, have the system inspected before returning it to service.
Product Questions and Answers
What does the K75-50132 turn buckle do?
It adjusts and maintains chain or linkage tension in compatible HCT Hercules operator systems.
Is Q076 the same reference?
Q076 is commonly listed as the Elite reference associated with LiftMaster K75-50132.
What symptoms can point to a bad turn buckle?
Loose or uneven chain tension, noisy operation, stripped threads, rust, bending, or repeated adjustment problems can indicate a worn turn buckle.
Does this fit HCTDCUL?
Some references associate K75-50132 with HCTDCUL and HCTDC-style Hercules operators, but the exact parts diagram should be checked.
Should other mechanical parts be checked?
Yes. Chain, sprockets, mounting hardware, and alignment should be inspected so the new turn buckle is not overloaded or misadjusted.
