LiftMaster K76-35321 Limit Passpoint Kit for RSW12V Gate Operators
The LiftMaster K76-35321 limit passpoint kit is a service replacement used in the operator limit/positioning system on select LiftMaster gate operators. It is commonly associated with the RSW12V and RSW12VH swing gate operator family and is also referenced as a learn limit or limit passpoint assembly for commercial gate operator platforms. This kit helps the operator identify and repeat its open and close travel positions. If the passpoint assembly is worn, damaged, misaligned, or not reading correctly, the gate may have trouble learning limits, may stop short, or may travel past its expected position. Because limit system parts can vary by operator generation and internal layout, this kit should be matched to the original assembly and service diagram rather than ordered by description only.
Compatible With
This part is intended for the following LiftMaster applications when the model, suffix, and parts diagram confirm the same service part:
- Strongest references list LiftMaster RSW12V and RSW12VH. Also commonly described as a limit passpoint kit for various LiftMaster commercial gate operators; verify by parts diagram.
Common Replacement Reasons
- Gate will not complete a limit learn process.
- Open or close positions drift or become inconsistent.
- Operator stops early or overruns a learned position.
- The original limit passpoint or learn limit assembly is damaged or missing.
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Limit Passpoint Kit |
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| Part Number | K76-35321 |
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| Application | Limit position sensing and learn limit service |
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| Compatible Operator Type | Select LiftMaster commercial and DC gate operators |
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| Compatible Models | RSW12V and RSW12VH strongly referenced; other models require parts diagram confirmation |
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| Also Known As | Learn Limit Assembly Kit, Limit Passpoint Assembly |
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| Notes | Do not substitute with other limit assemblies unless confirmed by the operator parts list. |
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Also Known As / Related Part Numbers
The following numbers and search variations are commonly associated with this item or related service references. Verify exact replacement status before substituting any related number.
- K76-35321
- 76-35321
- K7635321
- K3 K76-35321
- Learn Limit Assembly Kit
- Limit Passpoint Assembly
- Automatic Positioning Encoder System for RSW12V
Technician Note
LiftMaster gate operator parts can vary by model generation, voltage, enclosure layout, and internal harness configuration. Match this part to the original component and the operator parts diagram before installation. Similar-looking reset switches, receptacles, limit parts, antennas, and alarm harnesses may not interchange across SL, RSL, RSW, CSW, LA, PPWR, or STAR1000 applications.
Before Ordering
- Confirm the manufacturer part number on the original part or service diagram.
- Check the operator model number and suffix on the equipment label.
- Compare mounting style, connector type, harness routing, voltage rating, and kit contents where applicable.
- For limit parts, confirm whether the operator needs a switch kit, passpoint kit, rack kit, or complete limit box assembly.
- For electrical parts, inspect the cause of failure before replacing the component.
Professional Advisory
Do not bypass monitored safety devices, alarms, interlocks, reset circuits, or factory protection features to keep a gate running. Disconnect power before servicing internal components. For high-voltage wiring, damaged control boxes, heavy slide gates, or operators that move unpredictably, have the system inspected by a qualified gate technician.
Important Ordering Warnings
- Do not rely on the product description alone when the operator has multiple generations or suffixes.
- Do not substitute a similar K76, K74, K23, K70, or K94 part number unless the parts diagram confirms the substitution.
- Limit-system repairs may require travel-limit setup and safety testing after installation.
- Receiver antenna repairs should also include a check of remote compatibility, receiver placement, and interference conditions.
Product Questions and Answers
What does the K76-35321 limit passpoint kit do?
It is part of the gate operator limit and position sensing system. It helps the operator recognize travel passpoints so open and close limits can be learned and repeated.
Which models are most commonly associated with K76-35321?
The strongest model references are LiftMaster RSW12V and RSW12VH. Some supplier references describe it more broadly for commercial gate operators, so confirm by parts diagram.
No. K76-37306 is a limit switch kit and K76-37325 is a limit rack kit. They are related limit-system parts but should not be treated as interchangeable.
What symptoms point to a limit passpoint problem?
Common signs include failed limit learning, inconsistent stopping points, gate overtravel, or a system that cannot reliably find its learned open and close positions.
Can this kit be installed without relearning limits?
Most limit system repairs require setup or verification after installation. Follow the operator manual and have a qualified gate technician handle setup if the gate is heavy, unsafe, or unpredictable.
