LiftMaster T Industrial-Duty Trolley Operator Replacement Parts

LiftMaster K75-10170 Trolley Slider Assembly Kit

$34.88

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LiftMaster K75-10174 Front Idler Trolley Kit

$35.76

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LiftMaster K75-10259 Track Spacer Assembly Kit

$45.14

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LiftMaster K75-12870 Straight and Curved Door Arm Kit

$110.01

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LiftMaster 16-5L300 Cogged V-Belt 5L300 for Commercial Operators

$35.39

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Liftmaster 19-48033M Chain, #48X33, with ML

LiftMaster 19-48033M #48 x 33 Chain with Master Link

$24.10

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Liftmaster K72-12506 Clutch Shaft Kit, T, 1/3 HP, 1/2 HP

LiftMaster K72-12506 Clutch Shaft Kit, Model T, 1/3 and 1/2 HP

$201.96

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Liftmaster K72-12507 Clutch Shaft Kit, 3/4 HP, 1HP

LiftMaster K72-12507 Clutch Shaft Kit, Model T, 3/4 and 1 HP

$203.34

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Liftmaster 15-41B32GXX Sprocket, 41B32T, 3/4

LiftMaster K15-41B32GXX Sprocket, 41B32T, 3/4 Inch Bore

$41.82

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Liftmaster K21-14182 Transformer, 120/240V, 24VAC, 20VA

LiftMaster K21-14182 120/240V to 24VAC 20VA Transformer

$39.20

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Liftmaster K21-35077 Transformer, 575V, 24VAC

LiftMaster K21-35077 575V to 24VAC 40VA Transformer

$81.34

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LiftMaster K74-31243 MOV Kit for Logic Commercial Operators

$58.71

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LiftMaster K79-15016-1 RPM Sensor Kit

$70.66

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LiftMaster K72-12515-1 Limit Switch Assembly Kit

$47.57

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LiftMaster K72-10047 Limit Shaft Assembly Kit

$94.71

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Liftmaster K21-36793 Transformer, 208/230/460V-20VA

$43.57

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Liftmaster K001D8395 Logic Board Kit with Current Sense, L5

$169.95

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Liftmaster K001C8103-1 Antenna

$35.58

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Liftmaster K001D8397 Power Board Kit, 3PH, L5

$139.38

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Liftmaster K001D8397-1 Power Board Kit, 575V, L5

LiftMaster K001D8397-1 3 Phase Power Board Kit, 575V, Logic 5

$153.97

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LiftMaster 331 L5, K20-1050B-2LP-H24 115/230V 1PH 60Hz Standard 1/3 HP Replacement Motor Kit

$399.52

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LiftMaster 751 L5, K20-1075B-2LP-H24 115/230V 1PH 60Hz, Standard 3/4 HP Replacement Motor Kit

$493.71

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LiftMaster 753 L5, K20-3075B-4P-H24 230/460V 3PH 60Hz, Standard 3/4 HP Replacement Motor Kit

$480.63

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LiftMaster 755 L5, K20-3075M-5-H25 575V 3PH 60Hz, Standard 3/4 HP Replacement Motor Kit

$799.95

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LiftMaster 503 L5, K20-3050B-4P-H24, 230/460V 3PH 60Hz Standard 1/2 HP Replacement Motor Kit

$499.95

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LiftMaster 505 L5, K20-3050M-5-H25, 575V 3PH 60Hz Standard 1/2 HP Replacement Motor Kit

$737.58

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LiftMaster 103 L5, K20-3100B-4P-H24 230/460V 3PH 60Hz, Standard 1HP Replacement Motor Kit

$575.35

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LiftMaster 105 L5, K20-3100M-5-H25 575V 3PH 60Hz, Standard 1HP Replacement Motor Kit

$890.61

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Liftmaster K17-10165 Replacement Pulley (7

LiftMaster K17-10165 7 Inch Pulley for Commercial Door Operators

$33.90

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Liftmaster K23-10041 Limit Switch Replacement Kit (SPDT, 10A 125/250VAC) 1/2 HP

LiftMaster K23-10041 SPDT 10A Limit Switch for Select 1/2 HP Commercial Door and Gate Operators

$15.25

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Liftmaster K72-12508 Replacement Output Shaft Kit (T, 1/3HP, 1/2HP) Trolley

LiftMaster K72-12508 Output Shaft Kit for Model T 1/3 HP and 1/2 HP Trolley Operators

$208.36

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Liftmaster K72-12509 Replacement Trolley Output Shaft Kit (3/4 & 1 HP) 41B32

LiftMaster K72-12509 Trolley Output Shaft Kit for 3/4 HP and 1 HP Operators

$207.34

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Liftmaster K22-575-1 Brake Solenoid (575V/60Hz) Replacement Kit Commercial Gate

LiftMaster K22-575-1 575V/60Hz Brake Solenoid Kit for Logic 5.0 Operators

$145.10

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Liftmaster K22-36899 1PH/L5 Brake Solenoid Replacement Kit Commercial Openers

LiftMaster K22-36899 1PH/L5 Brake Solenoid 208-230V Replacement Kit for Logic 5.0 Operators

$93.79

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Liftmaster K22-36900 3PH/L5 Brake Solenoid Replacement Kit (208V-230V/60Hz)

LiftMaster K22-36900 3PH/L5 Brake Solenoid 208-230V Replacement Kit for Logic 5.0 Operators

$79.93

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Liftmaster K20-1100B-2LP-H24 replacement Motor Kit (1HP, 1PH, L5) Logic 5.0

$742.40

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Liftmaster K13-10024 Limit Nut Replacement Part Commercial Door Operators

$11.73

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Liftmaster K12-10331 12-10331, 11A52, 1210331 Flange Bearing Commercial Doors

$12.26

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Liftmaster K001D8396-1 K001D8396, K001D8072-1 Power Board 1PH Logic 5

$149.95

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Liftmaster K13-10024 2-Pack Limit Nut Replacement Part Commercial Door Operators

$22.00

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Liftmaster 19-5812 #48 CHAIN FOR DOORS 12' HIGH

$44.95

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Liftmaster 19-5814 #48 CHAIN FOR DOORS 14' HIGH

$49.95

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Liftmaster K71-D1PH Drum Brake Kit, 120V

LiftMaster K71-D1PH 120V Single Phase Drum Brake Kit

$313.12

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Liftmaster K71-D3PH DRUM BRAKE KIT, 240V

LiftMaster K71-D3PH 240V Three Phase Drum Brake Kit

$332.72

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LiftMaster K11-10014 Clutch Shaft

$27.34

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liftmaster 19-41047 - Chain, #41x47, No ML

$26.46

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Liftmaster 19-5810 #48 Chain (1/3 & 1/2 HP) Doors 8' to 10'

$44.95

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Frequently Asked Questions : Liftmaster T Industrial-Duty Trolley Operator Replacement Parts

Q1: What are the common replacement parts for the LiftMaster T trolley operator?

A1: Frequently replaced components for the LiftMaster T industrial-duty operator include Logic control boards, high-voltage motors, and complete trolley assemblies. Structural hardware such as drive chains, limit switch assemblies, and contactors are also standard replacement items to maintain system integrity.

Q2: How do I identify the correct replacement Logic board for a LiftMaster T operator?

A2: To find the compatible Logic control board, locate the specific part number printed directly on your existing board or refer to the operator's specification label. The replacement board must match the exact voltage, phase, and Logic generation of the original unit.

Q3: Can the trolley assembly on the LiftMaster T operator be repaired if it binds?

A3: The trolley assembly is a critical mechanical component that connects the door to the drive mechanism. If the internal carriage or track slides become severely worn or binding occurs, the entire trolley assembly typically requires replacement by a local qualified professional.

Q4: What should be done if the industrial-duty motor on the LiftMaster T fails?

A4: Replacing a high-voltage industrial motor involves managing complex electrical connections and realigning heavy mechanical linkages. For safety and operational integrity, this procedure must be completed by a licensed electrician or a local qualified commercial door technician.

Q5: Why might the limit switch assembly on a trolley operator need replacement?

A5: Limit switches endure constant mechanical friction during high-cycle operations. If the commercial door begins to over-travel or fails to stop at the designated boundaries, the internal cams are likely worn and require complete replacement.

Q6: What safety devices are compatible with the LiftMaster T industrial-duty operator?

A6: The LiftMaster T operator requires continuous-monitoring safety peripherals, such as commercial photoelectric sensors or optical safety edges, to meet UL 325 safety standards. Refer to the manufacturer's installation manual to confirm that replacement sensors are fully compatible with the specific Logic board.

Q7: Can a damaged contactor on the LiftMaster T operator be repaired internally?

A7: The contactor acts as a high-voltage relay that transfers power to the motor and is not designed for internal repair. When the internal electrical contacts become pitted or fused from repetitive commercial use, the entire contactor block must be replaced.

Q8: What indicates that the drive chain on a trolley operator needs replacing?

A8: A drive chain requires replacement if it exhibits severe rust, stiff links, or excessive metal fatigue that prevents proper tensioning. Using a compromised chain can lead to slipping, improper door operation, and potential mechanical failure.

Q9: Who is qualified to replace the internal friction clutch mechanism on the LiftMaster T?

A9: The internal friction clutch is a tension-loaded safety mechanism designed to protect the door hardware by allowing slippage during an obstruction. Servicing or replacing this critical component requires specialized knowledge and should only be performed by a local qualified technician.

Q10: What maintenance is required after installing new mechanical parts on the trolley operator?

A10: Newly installed chains, sprockets, and trolley carriages must be correctly aligned, tensioned, and lubricated according to exact factory specifications. For detailed maintenance schedules and safety testing procedures, consult the technical manual provided by the manufacturer.

LiftMaster T Industrial-Duty Trolley Operator Replacement Parts

Products [47]

Frequently Asked Questions : Liftmaster T Industrial-Duty Trolley Operator Replacement Parts

Q1: What are the common replacement parts for the LiftMaster T trolley operator?

Q2: How do I identify the correct replacement Logic board for a LiftMaster T operator?

Q3: Can the trolley assembly on the LiftMaster T operator be repaired if it binds?

Q4: What should be done if the industrial-duty motor on the LiftMaster T fails?

Q5: Why might the limit switch assembly on a trolley operator need replacement?

Q6: What safety devices are compatible with the LiftMaster T industrial-duty operator?

Q7: Can a damaged contactor on the LiftMaster T operator be repaired internally?

Q8: What indicates that the drive chain on a trolley operator needs replacing?

Q9: Who is qualified to replace the internal friction clutch mechanism on the LiftMaster T?

Q10: What maintenance is required after installing new mechanical parts on the trolley operator?