LiftMaster K17-6014 Pulley 2 Inch OD 5/8 Inch Bore for Gate and Door Operators
The LiftMaster K17-6014 is a replacement pulley used in select commercial door and gate operator drive systems. It is commonly described as a 2 inch outside diameter pulley with a 5/8 inch bore and is referenced in commercial operator parts listings as a motor or drive pulley.
This pulley is a mechanical power-transfer component. It is typically replaced when the original pulley is worn, damaged, out of round, slipping on the shaft, or no longer aligning correctly with the belt. Because belt-driven commercial operators use different pulley sizes and bores, the parts diagram is critical.
What This Part Does
The pulley helps transmit motor or shaft rotation through the operator belt-drive system. Correct pulley size and bore are important for belt alignment, operator speed, and reliable power transfer.
If a pulley is damaged or mismatched, the belt can slip, wear quickly, or track incorrectly. The motor shaft, belt, keyway, set screw, bearings, and connected pulleys should all be inspected during replacement.
Common Symptoms and Service Use
- Belt slipping or wearing unevenly
- Pulley wobble, scoring, or worn belt groove
- Operator noise from the belt-drive area
- Pulley set screw or shaft fit problems
- Drive-system service on compatible gate or door operators
Compatible With
K17-6014 is used with select LiftMaster gate operators and commercial door operators where the parts diagram calls for a 2 inch OD, 5/8 inch bore pulley. Some sources reference H-series hoist operators and HJ model applications.
Common Compatible Products and Operator Families
- Select LiftMaster gate operators using K17-6014 in the drive system
- Select LiftMaster commercial door operators using a 2 inch OD, 5/8 inch bore pulley
- LiftMaster H-series hoist operator applications when confirmed by parts diagram
- LiftMaster HJ-style commercial door operator applications when confirmed by parts diagram
- Commercial operator belt-drive assemblies calling for 17-6014 / K17-6014
- Operator systems using related G176014 or 176014 references
Additional Applications to Verify
- Various commercial door and gate operator systems where the original pulley is marked K17-6014
- Service replacements requiring a 2 inch OD pulley with 5/8 inch bore and matching belt profile
Important Compatibility Notes
- K17-6014 is not the same as 144C0077, which has a 1/2 inch bore and is used in residential opener applications.
- K17-6014 is not the same as K17-50095, which is a 2-1/2 inch gear pulley associated with SL3000 applications.
- Confirm shaft size, belt profile, pulley width, and mounting style.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Replacement pulley |
| Part Number | K17-6014 |
| Outside Diameter | 2 inch |
| Bore | 5/8 inch |
| Material | Steel in common listings |
| Application | Gate and commercial door operator drive systems |
| Compatible Operator Type | Select LiftMaster gate operators and commercial door operators |
| Notes | Match pulley dimensions, bore, belt profile, and parts diagram. |
Also Known As / Related Part Numbers
This part may be searched under several part-number formats, older listing numbers, catalog references, or related component numbers. Related numbers are included to help identify the correct item, but they should not be treated as interchangeable unless the operator parts diagram supports the match.
- K17-6014
- 17-6014
- 176014
- G176014
- K176014
- LiftMaster 2 inch OD 5/8 inch bore pulley
- LiftMaster HJ model pulley
- LiftMaster H-series pulley
Technician Note
Measure the original pulley and check the parts diagram before ordering. Pulleys with the same outside diameter can have different bores, widths, belt profiles, and set-screw arrangements.
Before Ordering, Confirm
- The original part number is K17-6014, 17-6014, 176014, or G176014.
- The pulley measures 2 inch OD with a 5/8 inch bore.
- The operator parts diagram calls for this pulley.
- The belt profile and shaft fit match the original drive system.
- The belt, motor shaft, bearings, and related pulleys are in serviceable condition.
Professional Advisory
Disconnect operator power and secure moving assemblies before working on pulleys or belt-drive parts. After replacement, check pulley alignment, belt tension, operator travel, limits, and safety devices.
Important Ordering Warnings
- Do not substitute a pulley with a different bore or outside diameter.
- Do not install on residential opener rail systems unless the parts diagram specifically calls for K17-6014.
- A worn belt or misaligned shaft can damage the new pulley.
Questions & Answers
What size is the K17-6014 pulley?
K17-6014 is commonly listed as a 2 inch outside diameter pulley with a 5/8 inch bore.
What operators use K17-6014?
It is used with select LiftMaster gate and commercial door operators, including H-series and HJ-style applications when confirmed by parts diagram.
No. 144C0077 is a residential opener pulley with a 1/2 inch bore, while K17-6014 is a 5/8 inch bore commercial/gate operator pulley.
What related numbers are used for K17-6014?
Common related numbers include 17-6014, 176014, and G176014.
What should be checked during replacement?
Check pulley alignment, shaft condition, set screw, belt condition, belt tension, and the matching pulley on the drive system.
