Liftmaster HS670 & HS670GL Slide Gate Parts
LiftMaster HS670 & HS670GL Replacement Parts
Genuine LiftMaster replacement parts for the HS670 and HS670GL heavy-duty slide gate operators — the hydraulic drive-wheel slider, which pushes the gate with rubber-tyred drive wheels instead of a chain and sprocket. Use the exploded diagram above to find the key number for the part you need, then click any part number in the tables below to go straight to that product.
This is a hydraulic operator, not a chain drive. A pump and hydraulic motor turn two rubber drive wheels that grip the gate frame directly. If you were expecting a sprocket and chain, you are on the wrong page.
Order tension rods and drive wheels by horsepower. Ref 3 and Ref 9 both split 1 HP versus 2 HP, and the parts are not interchangeable. Check the motor data plate first.
Several parts on this page are discontinued. Where a part number appears without a link, LiftMaster no longer supplies it and there is no direct replacement.
Common HS670 Repairs
| Symptom | Usual cause | Parts to check |
|---|---|---|
| Gate slips or stalls under load | Drive wheels worn smooth or tension lost | K75-19096 / K75-19095 drive wheels, K75-19103 tension rod |
| Motor runs but the gate does not move | Hydraulic pump or hydraulic motor | K32-19008 pump, K75-19099 hydraulic motor |
| Gate overruns its stopping point | Limit switch or Hall effect sensing | K74-19094 limit switch, K74-G0589 and K75-19104 sensor kits |
| Erratic speed or missed counts | Traction ring slipping on the sensor wheel | K80-19011 traction ring |
| Operator dead, nothing at the board | Control board, contactor or transformer | K001A5566, K03-8024-K, K21-3260-1 |
| Trips the overload repeatedly | Overload sized wrong or failing | K25-2006, K25-2015 overloads |
| Wheels chatter or the arm assembly is loose | Pivot arm bushings and shoulder bolts | K75-19101, K75-19100 pivot arm kits, KMG49130 bolt kit |
Gate Operator Repair & Service Parts
| Ref | Part # | Description |
|---|---|---|
| 1 | K20-1100 | Motor, 1 HP, 115/230V, 1PH |
| 1 | MG1030040 | Motor, 1 HP, 220/460V, 3PH |
| 1 | MG1030041 | Motor, 2 HP, 230/460V, 3PH |
| 2 | K32-19007 | Hydraulic Pump, GI Class 3 and 4, 18 IPS — no longer available |
| 2 | K32-19008 | Hydraulic Pump, GC Class 1 and 2, 1 IPS |
| 3 | K75-19103 | Tension Rod, 1 HP |
| 3 | K75-19102 | Tension Rod, 2 HP |
| 4 | K75-19101 | Lower Pivot Arm Kit |
| 5 | K75-19100 | Upper Pivot Arm Kit |
| 6 | K75-19099 | Hydraulic Motor |
| 7 | K75-19098 | Guide Kit |
| 8 | K75-19097 | Base Mounting Kit — no longer available |
| 9 | K75-19096 | Drive Wheels, 1 HP, Qty 2 |
| 9 | K75-19095 | Drive Wheels, 2 HP, Qty 2 |
| 10 | K74-19094 | Limit Switch |
| 11 | KMG49130 | Shoulder Bolt Kit |
| 12 | K75-19090 | Cover, HS670 |
| 13 | K74-G0589 | Hall Effect Sensor Kit |
| 14 | K80-19011 | Traction Ring, Hall Effect Wheel |
| 15 | K75-19104 | Hall Effect Sensor Kit |
Control Box Assembly
| Ref | Part # | Description |
|---|---|---|
| 1A | K001A5566 | GL Control Board |
| 2A | K03-8024-K | Reversing Contactor |
| 3A | K21-3260-1 | Transformer, 120/208/230/460, 60VA |
| 4A | K71-416-7NH | Loop Detector Board, 120V |
| 5A | K42-8116-1 | Terminal Block, 16 Position |
| 6A | K23-3001 | On/Off Switch, 125/277VAC, 20A |
| 6A | K23-3005 | On/Off Switch, 125/277VAC, 20A |
| 7A | K25-2006 | Overload, 6A |
| 7A | K25-2015 | Overload, 15A |
Parts Not Shown in Diagram
| Ref | Part # | Description |
|---|---|---|
| — | K76-G0537 | Alarm Kit |
| — | 80-207-50 | Key, 1/2" x 1/2" x 2" |
| — | K-MG4101669 | Limit Shoe |