Liftmaster K75-18618, DISCONNECT KIT
The LiftMaster K75-18618 is a manual disconnect kit used on select LiftMaster commercial slide gate operators. The disconnect assembly allows the operator drive to be disengaged for service or manual gate movement when used according to the operator instructions. This hardware is important on heavy slide gate systems because a worn or damaged disconnect can make service difficult, leave the gate difficult to release, or prevent the mechanism from re-engaging correctly.
Compatibility is model- and generation-sensitive. Stronger references list SL590 and SL595 applications, including grey-painted SL590/SL595 configurations and SL595GL service references. The kit is commonly related to 10-3616 and 10-3617 and may include the support bracket, detent plate, disconnect lever, release yoke bevel, and disconnect shaft. Match the full assembly to the parts diagram before ordering.
Compatible With
- LiftMaster SL590 commercial slide gate operators where the parts diagram calls for K75-18618
- LiftMaster SL595 commercial slide gate operators where the parts diagram calls for K75-18618
- Grey-painted SL590 / SL595 style applications listed by some references
- SL595GL disconnect hardware applications where confirmed
- Various LiftMaster commercial gate operators only when the parts diagram specifically lists this kit
Features and Specifications
| Manufacturer | LiftMaster |
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| Product Type | Disconnect kit |
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| Part Number | K75-18618 |
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| Application | Manual disconnect hardware replacement |
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| Compatible Operator Type | Select LiftMaster SL590 and SL595 commercial slide gate operators |
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| Included Components | References list disconnect support bracket, detent plate, disconnect lever, release yoke bevel, and disconnect shaft |
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| Notes | Verify chassis color/generation and parts diagram |
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Also Known As / Related Part Numbers
- K75-18618
- 75-18618
- 10-3616
- 10-3617
- 103616
- 103617
- LM-K75-18618
- Disconnect assembly kit
- Disconnect lever kit
Technician Note
Match this replacement part to the original part number, operator model, and parts diagram. LiftMaster and Elite service parts often look similar across operator families, but small differences in mounting, wiring, generation, voltage, or mechanical layout can make them non-interchangeable.
Before Ordering Checklist
- Confirm the operator model and model suffix on the nameplate.
- Compare the existing part number, Q number, or old reference number when available.
- Review the operator parts diagram for the exact assembly location.
- Check for damage that may have caused the original part to fail, such as water intrusion, gate binding, worn chain, loose hardware, or incorrect wiring.
- For electrical parts, confirm voltage, control-board generation, grounding, and accessory wiring before installation.
Professional Advisory
Gate operator repairs can involve heavy moving gates, stored mechanical force, high voltage, and required entrapment protection devices. Do not bypass safety sensors, edge devices, interlocks, or emergency release requirements. When wiring, grounding, high-voltage diagnosis, or unsafe gate movement is involved, have the system serviced by a qualified gate technician.
Product Questions and Answers
Which operators commonly use K75-18618?
References strongly associate K75-18618 with LiftMaster SL590 and SL595 commercial slide gate operators, including some grey and SL595GL applications.
What related part numbers should I search?
Common related numbers include 10-3616 and 10-3617, along with K75-18618 and 75-18618.
What parts are included in the disconnect kit?
References list a disconnect support bracket, detent plate, disconnect lever, release yoke bevel, and disconnect shaft. Confirm current kit contents before ordering.
Is this the same as a clutch or limit shaft kit?
No. It is a disconnect kit. Clutch, limit shaft, chain guide, and sprocket kits are separate parts.
Can the gate be operated with damaged disconnect hardware?
A damaged disconnect can create unsafe service conditions or prevent proper re-engagement. The operator should be inspected before being returned to regular use.
