Liftmaster K19-35072, CHAIN, #35, Q213
The LiftMaster K19-35072 is a #35 endless chain used in the limit drive assembly on compatible CSW200 swing gate operators. Because it is identified by the Elite/LiftMaster Q213 reference, it is often searched both by the modern part number and the older Q-number. Its job is to keep the limit system moving correctly with the gate drive so the operator can stop at the proper open and close points. If the chain is worn, stretched, or off the sprocket, the gate may not stop accurately even if the electrical limit switches are working. This part should be installed only where the parts diagram calls for K19-35072 or Q213.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Endless limit chain |
| Part Number | K19-35072 |
| Also Known As | Q213 |
| Chain Size | Number 35 |
| Application | Limit switch drive chain for swing gate operator |
| Compatible Operator Type | CSW200 / CSW200UL swing gate operators |
| Notes | Verify CSW200 generation and limit assembly parts diagram |
Compatible With
This part may be used with the following operators or product families when the original part number and parts diagram match:
- LiftMaster CSW200 swing gate operators
- LiftMaster CSW200UL swing gate operators where the parts diagram calls for Q213 / K19-35072
- Select Elite CSW200-style limit switch drive assemblies using a #35 endless chain
- Do not substitute with an open chain segment unless the operator diagram specifies the same configuration
Also Known As / Related Part Numbers
- K19-35072
- Q213
- 19-35072
- 1935072
- LiftMaster #35 endless chain
- CSW200 limit chain
- Elite Q213 chain
Technician Note
Chain, spring, and limit-system parts should be matched by the original part number and by the operator parts diagram. Similar-looking parts can vary by chain size, pitch count, spring dimension, operator generation, finish, and whether a master link is included.
Before Ordering Checklist
- Confirm the manufacturer part number on the old part or parts diagram
- Verify the operator model and generation
- Compare chain size, pitch count, finish, spring size, or kit contents as applicable
- Inspect related sprockets, bearings, clips, brackets, and limit hardware for wear
- Do not substitute a different chain size, spring, or master link without confirming the parts diagram
Professional Advisory
Gate operators, barrier systems, and traffic control equipment include moving mechanical parts that can create pinch, crush, or stored-tension hazards. Disconnect power where required and use a qualified gate technician when servicing drive chains, limit systems, torsion springs, or traffic spike hardware.
Product Questions & Answers
What is the Q213 reference?
Q213 is an older/common related number for the LiftMaster K19-35072 #35 endless chain.
Is K19-35072 a drive chain or a limit chain?
It is used as a limit switch drive chain in compatible CSW200-style swing gate operators.
What models commonly use this chain?
It is commonly associated with LiftMaster CSW200 and CSW200UL swing gate operators when the parts diagram calls for Q213.
Can I replace it with regular #35 chain?
Do not assume that. This is an endless chain and should match the OEM configuration.
Why would this chain need replacement?
Replace it if it is stretched, broken, off the sprocket, corroded, or causing inaccurate limit stopping.
