Liftmaster K75-37556, DRIVE SHAFT KIT
The LiftMaster K75-37556 is a drive shaft kit for select LiftMaster SL595U and SL595UL commercial slide gate operators. The shaft assembly is part of the mechanical drive path that supports chain movement and transfers power through the operator drive system.
Supplier references describe the kit as including the idler shaft, pillow block bearing, idler sprocket and chain. This makes it more than a single loose shaft. It is a service assembly intended to restore worn or damaged drive components in the SL595 operator. Because mechanical drive parts must line up with the operator frame, chain path and sprocket spacing, it should be matched to the parts diagram before ordering.
What This Part Does
- Replaces the drive/idler shaft assembly components on compatible SL595 operators.
- Helps restore smooth chain travel through the operator drive path.
- Addresses worn shaft, bearing, sprocket or chain components when supplied as a kit.
- Supports reliable movement on heavy-duty commercial slide gate systems.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Drive shaft / idler shaft service kit |
| Part Number | K75-37556 |
| Application | Drive shaft replacement kit for select heavy-duty slide gate operators |
| Compatible Operator Type | LiftMaster SL595U / SL595UL commercial slide gate operators |
| Included Components | Drive/idler shaft kit; references note shaft, pillow block bearing, idler sprocket and chain |
| Material / Finish | Mechanical drive assembly components |
| Notes | Match chain size, shaft layout and operator parts diagram before ordering. |
Compatible With
Common Compatible Models
- LiftMaster SL595U commercial slide gate operators.
- LiftMaster SL595UL heavy-duty slide gate operators.
Additional Model Families to Verify
- SL595 series operators by model, serial number and mechanical parts diagram.
- Older SL595 operator configurations only when K75-37556 is shown for the shaft assembly.
Important Compatibility Notes
Do not substitute this kit for SL575, SL585, SL3000 or other slide gate drive shaft kits without confirming shaft length, sprocket size, bearing style and parts diagram.
Also Known As / Related Part Numbers
- K75-37556
- 75-37556
- LIF-K75-37556
- SL595 drive shaft kit
- SL595U drive shaft kit
- SL595UL idler shaft kit
- LiftMaster idler shaft kit
- LiftMaster drive shaft assembly
Technician Note
When a drive shaft kit is worn out, look for root causes such as a tight gate, misaligned chain, worn rollers, damaged track or excessive chain tension.
Before Ordering Checklist
- Confirm the operator is an SL595U or SL595UL.
- Verify K75-37556 in the parts diagram.
- Inspect sprocket wear, bearing play and chain condition.
- Compare shaft length and bearing style before installation.
- Check gate rolling resistance so new drive parts are not overloaded.
Professional Advisory
Heavy slide gate drive components can pinch or move unexpectedly. Disconnect power and secure the gate before mechanical service.
Product Questions & Answers
What is included with K75-37556?
Supplier references describe the kit as including the idler shaft, pillow block bearing, chain and idler sprocket, but current kit contents should be checked when ordering.
Which operators commonly use this drive shaft kit?
It is commonly listed for LiftMaster SL595U and SL595UL commercial slide gate operators.
Is this the same as a chain replacement only?
No. It is a drive/idler shaft service kit and may include several mechanical drive components.
What symptoms can point to worn shaft components?
Noisy chain movement, loose sprockets, bearing play, uneven chain tracking or visible shaft wear can all point to drive assembly wear.
Should gate hardware be checked too?
Yes. A dragging gate, bad rollers or a damaged track can overload the operator drive system and shorten the life of new parts.
