Liftmaster 75-G0401X, COLLAR, DOUBLE SWING
The LiftMaster 75-G0401X is the double swing collar service part associated with select SW490GL swing gate operators. It helps secure and position mechanical components in the operator assembly. On a heavy swing gate, small drive and spring-related parts must remain properly aligned so the operator can move the gate smoothly without unnecessary stress on the mechanism.
This part is most commonly ordered during mechanical rebuilds, spring-area service, or when the original collar is lost, worn, or damaged. Because it is similar to the 75-G0400X collar but used in a different collar application, it should be verified by the SW490GL parts diagram. The gate should also be checked for binding or imbalance if the collar has failed.
Compatible With
- LiftMaster SW490GL swing gate operators
- Select SW490 swing gate operator configurations where the parts diagram calls for 75-G0401X
- Double swing collar applications in SW490GL mechanical assemblies
- Not a direct substitute for 75-G0400X single swing collar unless confirmed by diagram
Features and Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | Double swing mechanical collar |
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| Part Number | 75-G0401X |
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| Application | SW490GL swing gate operator mechanical service |
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| Compatible Operator Type | Swing gate operator |
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| Related Collar | 75-G0400X single swing collar reference |
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| Notes | Verify double swing application before ordering |
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Also Known As / Related Part Numbers
- 75-G0401X
- 75-G0401
- LM-75-G0401X
- Double swing collar
- SW490GL double swing collar
Technician Note
Do not mix the single swing and double swing collar positions. If the old collar is missing, use the exploded parts diagram to confirm the correct replacement.
Before Ordering
- Confirm the operator model and swing configuration
- Verify the diagram calls for 75-G0401X or 75-G0401
- Compare against 75-G0400X before ordering
- Inspect shaft, spring, and nearby fasteners
- Secure the gate before mechanical service
Professional Advisory
Swing gate operators can move with considerable force. Disable the operator and secure the gate before working on collars, shafts, springs, or drive hardware.
Product Questions and Answers
What does double swing mean on this part?
It refers to the collar application identified for double swing style SW490GL mechanical assemblies.
What model commonly uses 75-G0401X?
It is commonly associated with LiftMaster SW490GL swing gate operators.
Is it interchangeable with 75-G0400X?
No. They are related collar parts but should be matched by the diagram and swing configuration.
What should I inspect with this collar?
Inspect the shaft, spring, fasteners, and nearby mechanical parts for wear or movement.
Can this fix a binding gate?
Not by itself. If the gate is binding, the hinges, gate balance, and operator alignment must also be corrected.
