LiftMaster K76-37325 Limit Rack Kit for CSW200U and CSW200UL Operators
The LiftMaster K76-37325 limit rack kit is a replacement service kit for the limit assembly on select LiftMaster CSW200U and CSW200UL swing gate operators. The limit rack works with the operator limit mechanism to control where the gate stops at the fully open and fully closed positions. If the rack teeth, gear, cam, or related limit components are worn or damaged, the gate may lose accurate travel reference, stop inconsistently, or fail to complete a limit setup. This is not a universal limit assembly for every LiftMaster swing operator. It should be matched to the CSW200U/CSW200UL parts diagram and compared with the existing rack and cam arrangement before ordering. Similar CSW and older Elite assemblies can look close but may differ in mounting and geometry.
Compatible With
This part is intended for the following LiftMaster applications when the model, suffix, and parts diagram confirm the same service part:
- LiftMaster CSW200U and CSW200UL swing gate operators; related references may list CSW200 depending on generation and parts diagram.
Common Replacement Reasons
- Gate open or close position changes unexpectedly.
- Limit rack, gear, or cam is worn, cracked, or missing teeth.
- Operator cannot hold accurate travel limits.
- Limit system was damaged during a mechanical jam or internal repair.
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Limit Rack Kit |
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| Part Number | K76-37325 |
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| Application | Limit rack and travel-position service replacement |
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| Compatible Operator Type | CSW swing gate operators |
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| Compatible Models | CSW200U and CSW200UL; CSW200 references require generation verification |
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| Included Components | Rack assembly, gear, switch cam, and related mounting components where supplied |
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| Notes | Match to operator parts diagram and limit assembly layout. |
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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.
- K76-37325
- 76-37325
- K7637325
- CSW200U limit rack kit
- CSW200UL limit rack kit
- Limit Assembly
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
Which operators use the K76-37325 limit rack kit?
It is most commonly listed for LiftMaster CSW200U and CSW200UL swing gate operators. Some references mention CSW200, but generation should be verified.
What is the difference between a limit rack and a limit switch?
The limit rack is a mechanical part of the travel limit system. The limit switch is the electrical switch that reads position. Both must match the operator design.
Can this kit fix a CSW200U that will not stop correctly?
It can help if the limit rack, gear, cam, or related assembly is worn or damaged. Check the full limit system before assuming this is the only failed part.
Is K76-37325 used on RSW12 operators?
Do not assume RSW12 compatibility. K76-37325 is strongly associated with CSW200U and CSW200UL applications.
What should be checked before ordering?
Confirm the exact CSW model suffix, inspect the original rack and cam layout, and compare the operator parts diagram to the part number.
