Chamberlain H Replacement Parts

1-800-528-2806 www.liftmaster.com

Electrical Box

Electrical Box Replacement Kits
To order a complete electrical box replacement kit, add a K-Prefix to the model
number of your operator for example:
H5011L4 (Operator) = K-H5011L4 (Electrical Box Kit)
Service Kits
ITEM PART# DESCRIPTION
K1 K72-14130-1 Limit Shaft Kit
Complete with: Limit Shaft, Limit Nuts, Limit Bearings, Limit
Sprocket, Interrupter Cup, Shim Washers, Compression Ring,
Roll Pin and E-Rings.
K2 K72-12515-1 Limit Switch Kit
Complete with: Limit Nut Retainer, Switch Plates, Backup
Plate, Depress Plates, Limit Switches, Standoffs, Screws and
Locknuts.
9
7
12
13
8
Individual Parts
ITEM PART#
1 13-10024
2 23-10041
3 K75-35626
4 21-14182
21-35057
21-35077
5 29-31244
6 29-31245
29-31229
7 K74-31243
8 K79-15016-1
9 K1A6837
10 K2A761
11 K1C3196-3
12 42-31247
13 42-10040
10
6
4
5

Replacement Parts

Logic 4 Operators
Models J, H, and HJ
DESCRIPTION
Limit Nut
Limit Switch
Cover
Transformer, 115/230 Volts, 20Va
Transformer, 460 Volts, 40Va
Transformer, 575 Volts, 40Va
Relay, 24 Vdc DPST (A & B Relay) All Operators
Relay, 12 Vdc SPDT (C & D Relay) 3 Phase Only
Relay, 24 Vdc SPDT (C Relay) 1 Phase Only
MOV 580 Volts
RPM Sensor Assembly
Logic Board - L4
Coaxial Cable
Antenna
Terminal Block
Terminal Block, Radio
3
K2
2
11
1
K1