Liftmaster RSL12V Parts

LiftMaster RSL12V slide gate operator replacement parts diagram

LiftMaster RSL12V and RSL12VH Slide Gate Operator Parts

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.

Common RSL12V Repairs

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

Replacement Parts

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)

Service Kits

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

Parts Not Shown

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

Accessories

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.