Liftmaster K99-AWS, AUTOMATED WARNING SIGN INSERT
The LiftMaster K99-AWS is a two-sided automated warning sign insert for LiftMaster traffic-control systems. It provides the printed instruction and warning faces used at lanes where spikes, ramps, or directional traffic devices are installed. A clear, correct sign insert is important because traffic spike systems depend on visible warnings as much as the mechanical barrier itself. Replace a faded, broken, missing, or wrong sign insert so drivers understand the traffic direction and hazard before entering the lane. This insert is for automated warning sign applications, not manual warning sign inserts.
Compatible With
- LiftMaster automated warning sign assemblies used with traffic-control perimeter access systems
- LiftMaster traffic spike lanes requiring the K99-AWS automated warning sign insert
- Automated sign applications with perimeter entry and exit side messaging
- Traffic-control systems where the installed sign frame matches K99-AWS
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Two-Sided Automated Warning Sign Insert |
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| Part Number | K99-AWS |
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| Application | Traffic-control and perimeter access replacement part |
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| Compatible Operator Type | LiftMaster traffic spike / traffic-control systems |
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| Compatible Systems | LiftMaster automated warning sign assemblies used with traffic-control perimeter access systems; LiftMaster traffic spike lanes requiring the K99-AWS automated warning sign insert |
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| Notes | Confirm system family, dimensions, and parts diagram before ordering |
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Also Known As / Related Part Numbers
- K99-AWS
- K99AWS
- 99-AWS
- AWS
- automated warning sign insert
- LiftMaster automated warning sign
- K99-MWS as a related manual warning sign insert, not the same part
Technician Note
For K99-AWS, the safest match is the original part number and the specific LiftMaster traffic-control parts diagram. Do not rely on appearance alone, especially with Cobra, King Cobra, Stingray, Viper, and CR plate variations.
Before Ordering
- Match the original part number on the removed part or parts list
- Confirm the traffic spike family: Cobra, King Cobra, Stingray, Viper, Enforcer, or other LiftMaster system
- Check plate thickness, tooth count, CR designation, shaft length, bearing size, or sign type when applicable
- Inspect surrounding hardware for wear so the new part is not installed against damaged components
- Do not substitute a similar-looking part unless the manufacturer parts diagram supports it
Important Ordering Warnings
- Similar LiftMaster traffic spike parts may not be interchangeable
- CR, surface-mount, concealed, in-ground, and standard versions may use different hardware
- Traffic lanes should be blocked and secured before service
- Warning signs and safety instructions should remain visible and intact
Professional Advisory
Traffic spike systems can create severe tire damage and should be serviced only with the lane secured, the system locked out where applicable, and all warning signs and traffic-control procedures in place. Do not modify the system or remove required warning devices.
Product Questions & Answers
What is LiftMaster K99-AWS used for?
LiftMaster K99-AWS is used as a replacement two-sided automated warning sign insert for the compatible traffic-control system or perimeter access assembly listed for this part.
Is K99-AWS interchangeable with similar Cobra, King Cobra, Stingray, or Viper parts?
Not automatically. Traffic spike parts can look similar but differ by plate thickness, tooth count, lane style, shaft length, pivot hardware, or system family. Match the original part number and parts diagram.
When should this two-sided automated warning sign insert be replaced?
Replace it when the original part is bent, worn, missing, corroded, loose, cracked, seized, or no longer allows the traffic-control system to sit and operate correctly.
Does K99-AWS include all surrounding hardware?
Only assume the components named for this part are included. Reuse or order surrounding springs, brackets, anchors, rods, plates, bearings, clips, or sign hardware separately if the parts diagram shows them as separate items.
What should be checked before ordering K99-AWS?
Check the installed system family, original part number, plate thickness or shaft size when applicable, tooth count, CR or non-CR designation, and the LiftMaster parts diagram for the traffic-control unit.
