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The Lincoln Electric KP4004-1 is a genuine OEM retaining frame replacement kit designed for Viking series welding helmets. It serves as the primary mechanism to secure 4.5 in. x 5.25 in. (5x4) passive lenses or compatible auto-darkening filter (ADF) cartridges within the helmet shell. The frame is engineered to maintain structural integrity, ensure precise optical alignment, and create a seal to protect the operator from welding spatter and fumes bypassing the filter.
Features
High-heat resistance for thermal cycling environments
Impact-resistant structural design
Snap-in installation for field maintenance
Fume-resistant perimeter seal
Secures filter plates and ADF cartridges
Prevents light leakage and sensor misalignment
Restores original lens retention system functionality
Engineered to exact OEM specifications
Specifications
Manufacturer: Lincoln Electric
MPN: KP4004-1
Product Type: Retaining Frame Replacement Kit
Lens Size Compatibility: 4.5 in. x 5.25 in. (5x4)
Helmet Series Compatibility: Viking Series
Shell Compatibility: 3350 Series
Standards Compliance: ANSI Z87.1, CSA Z94.3, CE
Packaging: 1 Per Ea
Material: Heat-resistant polymer
Component Type: Genuine OEM Replacement Part
Applications
Securing ADF cartridges in Viking series welding helmets
Replacing damaged, warped, or degraded retaining frames
Maintenance of Lincoln Electric 5x4 passive welding helmets
Refurbishing existing welding helmet fleets
Ensuring proper lens alignment for operator safety
Preventing welding spatter and fumes from bypassing the filter
