Genuine replacement parts for the LiftMaster RSL12V and RSL12VH residential slide gate operators. Use the exploded view above with the tables below to identify what you need, then click any part number to order.
Before you order — three things to check.
1. The RSL12V is not the RSL12U, and they share very little. The V is chain drive with a separate wall-mounted control box; the U is belt drive with the electronics built into the operator. Their control boards, chassis, covers and drive components are all different. If your operator has its board inside the housing rather than in a separate box, you have a U — use the RSL12U parts page instead.
2. There are two boards on this operator and they do different jobs. K001A6426-2 at reference 1 is the main control board, shared with the RSW12V. K001A6636 at reference 19 is the low power RF board at 315MHz; K001A6636-1 is the 390MHz version. Check the frequency on your receiver before ordering — they are not interchangeable.
3. This operator uses two chains and they are not the same. The #25 x 87 link chain (reference 7) is the internal drive chain. The #41 chain sold by the foot is the gate chain that runs along the fence. Ordering one for the other is a wasted trip.
Part numbers shown as plain text rather than links are no longer available from the manufacturer. They are listed so you can identify what you have.
| Symptom | Usual cause | Parts to check |
|---|---|---|
| Gate slow, weak, or quits mid-cycle | Battery or power supply | A12330SGLPK 33AH battery, K204B0195-1 power supply |
| Gate overruns or will not stop | Limit switch, limit nut or passpoint | K23-50099, K13-34745, Passpoint Kit K76-34740 |
| Motor runs, gate does not move | Timing belt or drive chain worn | K16-GT2-4 timing belt, K19-25087M chain, K75-50090 idler |
| Operator dead, no response | Control board | K001A6426-2 main board |
| Remote does not work, wired controls do | RF board or antenna | K001A6636 315MHz, K001C3196-5 antenna |
| Grinding or rumble under load | Gear reducer or output sprocket | K32-34701-2, K15-36001, Pulley Kit K17-35661 |
| Gate reverses for no reason | RPM module or wiring harness | RPM Module K76-35664, Wiring Harness Kit K94-35658 |
| Ref | Part # | Description |
|---|---|---|
| 1 | K001A6426-2 | Control Board, RSL12V / RSW12V |
| 2 | K001C3196-5 | Antenna |
| 3 | K13-34729 | E-Box Cover |
| 4 | K13-34745 | Limit Nut |
| 5 | K15-36001 | Output Sprocket |
| 6 | K16-GT2-4 | Timing Belt |
| 7 | K19-25087M | Chain, #25 x 87 links with master link |
| 8 | K204B0195-1 | Power Supply, 14.5 Vac 30 VA |
| 9 | K20-90128-1 | Motor, 12V DC |
| 10 | K32-34701-2 | Gear Reducer |
| 11 | K73-34718-1 | Chassis |
| 12 | K75-34709-1 | Control Box with Hardware |
| 13 | K75-35662 | Limit Chain and Sprocket Kit — no longer available |
| 14 | K76-34743 | Access Panel with Receptacles, 120 Vac |
| 15 | K94-35225 | Battery Wire Harness Kit |
| 16 | K94-35659 | Reset Switch and Harness Kit |
| 17 | K29-50279-1 | Alarm — discontinued, stocked as K29-50279 (Q404) |
| 18 | K23-50099 | Limit Switch |
| 19 | K001A6636 | Control Board, Low Power RF, 315MHz |
| 20 | K75-50090 | Idler Pulley (Q013) |
| Ref | Part # | Description |
|---|---|---|
| K1 | K17-35661 | Gear Reducer Pulley Kit |
| K2 | K76-34740 | Limit Passpoint Kit |
| K3 | K94-35658 | Wiring Harness Kit |
| K4 | K76-35664 | RPM Module |
| Ref | Part # | Description |
|---|---|---|
| — | K001A6636-1 | Receiver Module, 390MHz — no longer available |
| — | K13-34720 | Cover, RSL |
| — | K07-50637 | Chain Bolt (Q003) |
| — | 77-36764 | Crank Bracket Kit — supplied as K77-36764, no longer available |
| Ref | Part # | Description |
|---|---|---|
| — | 19-41240D | Drive Chain, #41, 10 ft — the gate chain |
| — | 19-50307 | Master Link, #41 roller chain |
| — | A12330SGLPK | 33AH Battery with Harness |
| — | 29-NP712 | Battery, 7AH 12V DC |
| — | MSEL | Steel Stand for concrete pad mounting |
| — | MPEL | Plate for post mounting |
See also the RSW12V swing gate parts page — it shares the K001A6426-2 control board — or the full LiftMaster gate operator parts catalog.