LiftMaster SJ1053 Starter Parts — Wall Mounted
Genuine replacement parts for the wall-mounted starter panel fitted to the LiftMaster SJ1053 Speed Jack operator. The SJ1053 is the 575V three-phase model and uses a larger 14x16 enclosure than the rest of the SJ range, with its own transformer and overload.
If your operator is an SJ1011, SJ1021, SJ1023 or SJ1043, you need the 10x12 starter panel page instead — the parts do not interchange. Parts marked no longer available have been discontinued and are listed for identification only.
Enclosure, Transformer & Overload
| Ref |
Part # |
Description |
| 1 |
03-8024-K |
Mini Contactor, 24V (K03-8024-K) |
| 3 |
21-5575 |
Transformer, 575V–24V (no longer available) |
| 4 |
25-3000-K |
Overload Bracket |
| 5 |
25-4001-8K |
Overload, 575V three phase |
| 12 |
44-1614-HWPL |
Enclosure Assembly, 14 x 16 (no longer available) |
| 13 |
75-13705 |
Standoff Assembly |
| 15 |
10-17257 |
Switch Bracket (no longer available) |
Push Buttons & Contacts
| Ref |
Part # |
Description |
| 6 |
30-100-2 |
Push Button Operator, NEMA 4 |
| 7 |
30-111-2 |
Black Button, FC-BK NEMA |
| 8 |
30-112-2 |
Red Button, NEMA 1 and 12 |
| 9 |
30-310-2 |
Contact, N.O. green (K30-310-2) |
| 10 |
30-301-2 |
Contact, N.C. red (K30-301-2) |
Logic Board, Switch & Timer
| Ref |
Part # |
Description |
| 14 |
K79-13493SJ |
Logic Board Assembly |
| 16 |
23-3001 |
Switch, DPST On/Off (K23-3001) |
| 17 |
24-24-1 |
Relay, 24V DPDT (K24-24-1) |
| 18 |
26438 |
Artisan Timer |
| 11 |
42114 |
Terminal Block, 14 position |
| — |
K42-114 |
Terminal Block, 14 position, 600V 30A |
Options & Safety
| Part # |
Description |
| CPICARD |
CPI interface box |
| CPS-U |
Commercial photo eye |
| CPSUN4G |
Monitored through-beam photo eyes |
| CPS |
Safety eye sensors — mechanical operators |
| CPS-UN4 |
Safety eye sensors — commercial doors |
| K77-16011 |
Mounting hardware, CPS N4 |
| 65-5302 |
Pneumatic sensing edge, 22 ft, with take-up reel |
| LC-36A |
Safety eye sensors (no longer available) |
Related SJ Pages
Speed Jack operator parts — motors, gear reducer and brake · SJ1011, SJ1021, SJ1023, SJ1043 starter
