HJ5011 & All HJ Series Hoist Jackshaft Parts

LiftMaster HJ5011 industrial-duty hoist jackshaft operator replacement parts diagram

LiftMaster HJ5011 Replacement Parts — HJ Series Industrial-Duty Hoist/Jackshaft Operator

Genuine LiftMaster replacement parts for the HJ series industrial-duty hoist/jackshaft operator, 2005 to current production. The HJ5011 is the most common version — 1/2 HP, 115V, single phase. Use the exploded diagram to identify your part by its key number, then match it to the tables below.

Your model number is on the operator’s data label. The first two digits are horsepower and the last two are voltage and phase, so HJ5011 is 1/2 HP at 115V single phase and HJ5023 is 1/2 HP at 208/230V three phase. The HJ is handed — frame plate kits and frame rails come in left and right versions that do not interchange.

Note on brake parts: the HJ uses the standard internal brake solenoids and drum brake kits listed under Service Kits. It does not take the cabled K71-B120H style solenoids fitted to the H series.

If your HJ was built before 2005 these parts will not fit. Those are listed separately on our HJ Prior to 2005 page.

Models Covered

1/2 HP — most common: HJ5011 (115V, 1PH), HJ5021 (230V, 1PH), HJ5023 (208/230V, 3PH), HJ5043 (460V, 3PH), HJ5053 (575V, 3PH), HJ5025 (230V, 50Hz), HJ5038 (380V, 3PH, 50Hz)

1/3 HP: HJ3311, HJ3321, HJ3323, HJ3325, HJ3338, HJ3343, HJ3353

3/4 HP: HJ7511, HJ7521, HJ7523, HJ7525, HJ7538, HJ7543, HJ7553

1 HP: HJ1011, HJ1021, HJ1023, HJ1043, HJ1053

Logic 5.0 units: HJ501L5, HJ503L5, HJ505L5, HJ331L5, HJ333L5, HJ751L5, HJ753L5, HJ755L5, HJ101L5, HJ103L5, HJ105L5

Replacement Parts

Ref Part # Description
1 K11-19473 Clutch Shaft, HJ
2 K12-19504 Flange Bearing, 1"
3 15-30822 Dual Sprocket, 32/14 Tooth
4 K15-19484 Sprocket, 14T48
5 K18-11379 Compression Spring
6 K18-30957 Compression Spring
7 K72-12789 Hand Chain Shaft Kit
8 K75-19985 Pulley Assembly
9 K39-10167 Clutch Disc
10 K72-12789 Hand Chain Shaft Kit
10A K12-10883 Nylon Bearing
10B K12-10882 Bushing, 3/4" x 1" x 5/8"
10C K80-10883 Washer, 3/4" x 2-1/2"
11 K80-19846 Disconnect Hub, J
12 K15-19478 Sprocket, 48B32T, 1-1/2" B
13 K16-5L304 V Belt, 30-1/32"
14 K75-19978-R Frame Plate Kit, Right Hand
14 K73-HFRAME-R Frame Kit, Right Hand
15 K75-19978-L Frame Plate Kit, Left Hand
15 K73-HFRAME-L Frame Kit, Left Hand
16 K75-19977 Arm Kit
17 K75-19981 Arm Kit, H
18 K17-6014 Pulley, 2" OD, 5/8" B
19 K23-10916 Interlock Switch, 125/250VAC, 15A, SPDT
20 K12-10891 Ball Bearing, 1"
K19-48047M Chain, #48 x 47
K94-36992 Brake Cable Harness, 1PH, L5
K94-36994 Brake Cable Harness, 3PH, L5
K22-36899 Brake Solenoid, 1PH, L5
K22-36900 Brake Solenoid, 3PH, L5

Service Kits

Ref Part # Description
K1 K72-19982 Clutch Shaft Kit
K2 K72-19974 Output Shaft Kit, H, J
K71-B120 Internal Brake Solenoid, 120V
K71-B240 Internal Brake Solenoid, 240V
K71-B575 Internal Brake Solenoid, 575V
K71-B575-1 Internal Brake Solenoid, 575V
K71-D1PH Drum Brake Kit, 1PH
K71-D3PH Drum Brake Kit, 240V

Motor Replacement Kits

The motor’s part number is printed on the motor’s own data label. If you can reach it, read the number straight off the label and match it below — that is the most reliable way to order the right motor. TEFC motors are the NEMA 4/12 enclosure versions.

Model Volts Ph Circuit Standard NEMA 4/12 (TEFC)
HJ5011 115 1 Mech K20-1050B-2P K20-1050B-2TP
HJ5011 115 1 Logic K20-1050B-2LP K20-1050B-2TLP
HJ5021 230 1 Mech K20-1050B-2P K20-1050B-2TP
HJ5021 230 1 Logic K20-1050B-2LP K20-1050B-2TLP
HJ5023 208/230 3 Either K20-3050B-4P K20-3050B-4T
HJ5043 460 3 Either K20-3050B-4P K20-3050B-4T
HJ5053 575 3 Either K20-3050M-5 K20-3050M5T
HJ5025 230 1 Mech 20-51050B K20-51050BT
HJ5038 380 3 Mech K20-3050B-4P K20-3050B-4T
HJ3311 115 1 Mech K20-1050B-2P K20-1050B-2TP
HJ3311 115 1 Logic K20-1050B-2LP K20-1050B-2TLP
HJ3321 230 1 Mech K20-1050B-2P K20-1050B-2TP
HJ3323 208/230 3 Either K20-3050B-4P K20-3050B-4T
HJ3343 460 3 Either K20-3050B-4P K20-3050B-4T
HJ3353 575 3 Either K20-3033M5 K20-3033M5T
HJ3325 230 1 Mech K20-51033B K20-51033B
HJ7511 115 1 Mech K20-1075B-2P K20-1075B-2TP
HJ7511 115 1 Logic K20-1075B-2LP K20-1075B-2TLP
HJ7521 230 1 Mech K20-1075B-2P K20-1075B-2TP
HJ7523 208/230 3 Either K20-3075B-4P K20-3075B-4T
HJ7543 460 3 Either K20-3075B-4P K20-3075B-4T
HJ7553 575 3 Either K20-3075M-5-H25 20-3075B-5T
HJ7525 230 1 Mech K20-51075B K20-51075BT
HJ1011 115 1 Mech K20-1100B-2P K20-1100B-2T
HJ1011 115 1 Logic K20-1100B-2LP K20-1100B-2TLP
HJ1021 230 1 Mech K20-1100B-2P K20-1100B-2T
HJ1023 208/230 3 Either K20-3100B-4P K20-3100B-4T
HJ1043 460 3 Either K20-3100B-4P K20-3100B-4T
HJ1053 575 3 Either K20-3100M-5-H25 K20-3100M-5T

Motor Replacement Kits — Logic 5.0

Model Volts Ph Part #
HJ501L5 115/230 1 K20-1050B-2LP-H24
HJ503L5 230/460 3 K20-3050B-4P-H24
HJ505L5 575 3 K20-3050M-5-H25
HJ331L5 115/230 1 K20-1050B-2LP-H24
HJ333L5 230/460 3 K20-3050B-4P-H24
HJ751L5 115/230 1 K20-1075B-2LP-H24
HJ753L5 230/460 3 K20-3075B-4P-H24
HJ755L5 575 3 K20-3075M-5-H25
HJ101L5 115/230 1 K20-1100B-2LP-H24
HJ103L5 230/460 3 K20-3100B-4P-H24
HJ105L5 575 3 K20-3100M-5-H25

Electrical box parts. The HJ shares its control boxes with the H and J, and those boxes use different parts from the T and GT versions. The HJ was also offered in a NEMA 4/4X enclosure and, on early units, the contactor-style box.

LiftMaster Logic Control 4.0 electrical box parts diagram for models J, H and HJ

Electrical Box — Logic Control 4.0

Ref Part # Description
1 K13-10024 Limit Nut
2 K23-10041 Limit Switch, SPDT, 10A, 125/250VAC
3 K75-35626 E-Box Cover — J, H, HJ
4 K21-14182 Transformer, 120/240V, 24VAC, 20VA
4 K21-35057 Transformer, 460V, 24VAC
4 K21-35077 Transformer, 575V, 24VAC
5 K29-31244 Relay, DPST, 24V, 30A
5 K29-31245 Relay, 12V, 30A
6 K29-31229 Relay, 24VDC, 30A, SPDT, 1PH
7 K74-31243 MOV Kit, L5, 1PH/3PH
8 K79-15016-1 RPM Sensor Kit
9 K001A6837 Logic Board, L4
10 K002A0761 Receiver Coaxial Cable, 315MHz
11 K001C3196-3 Antenna, 315MHz
12 K42-31247 Terminal Block, 3 Position, 600V, 20A
13 K42-10040 Terminal Block, 3 Position
K74-MODELH Main Wire Harness
K1 K72-14130-1 Limit Shaft Kit — H, J, GH
K2 K72-12515-1 Limit Switch Kit
LiftMaster Logic Control 5.0 electrical box parts diagram for models J, H and HJ

Electrical Box — Logic Control 5.0

Ref Part # Description
1 K13-10024 Limit Nut
2 K23-10041 Limit Switch, SPDT, 10A, 125/250VAC
3 K75-36913 Cover for Current Sense Kit — H, J, L5
4 K21-14182 Transformer, 120/240V, 24VAC, 20VA
4 K21-36793 Transformer, 208/230/460V, 20VA
4 K21-35077 Transformer, 575V, 24VAC
5 K74-31243 MOV Kit, L5, 1PH/3PH
6 K79-15016-1 RPM Sensor Kit
7 K001D8395MC Logic Board, 1PH/3PH, Current Sense Ready L5
8 K002A0761 Receiver Coaxial Cable, 315MHz
9 K001C8103-1 Antenna
10 K001D8396-1 Power Board, 115/230V, 1PH, L5
10 K001D8397 Power Board Kit, 3PH, L5
10 K001D8397-1 Power Board Kit, 575V, L5
11 K21-38158 Current Sense Harness, 3PH, L5
K94-36934 Main Wiring Harness, L5
K1 K72-14130-1 Limit Shaft Kit — H, J, GH
K2 K72-12515-1 Limit Switch Kit
LiftMaster NEMA 4 and 4X electrical box parts diagram for H, J, HJ, GH, GT, T and APT

Electrical Box — NEMA 4 / 4X

Ref Part # Description
1 K03-35711 Contactor Relay, 24V, 2NO+2NC
2 K21-7115-1 Transformer, 115/230V, 1PH
2 K21-7460 Transformer, 240/480V, 3PH
2 K21-7460-1 Transformer, 230/460V, 3PH
2 K21-7575 Transformer, 575V, 24VAC
2 21-7575-1 Transformer, 575V, 3PH
3 K001A6837 Logic Board, L4
4 K52C0481 Bridge Rectifier Kit
5 K74-31243 MOV Kit, L5, 1PH/3PH
6 K42-31247 Terminal Block, 3 Position, 600V, 20A
7 K23-10041 Limit Switch, SPDT, 10A, 125/250VAC
8 K72-12515-1 Limit Switch Kit
9 K13-10024 Limit Nut
10 K79-15016-1 RPM Sensor Kit
11 K72-33192 Limit Shaft Kit
12 K75-35815 Enclosure, 1PH, N4
12 K75-35816 Enclosure, 3PH, N4
13 K29-ABC-2 Fuse, 250V, 2A
14 K74-19499 Antenna
15 AUXCARD Option Card Aux Relay Kit