G4 Arm Insulated
The 450 mm × 118 mm deep-reach structural arm for GYSPOT PTI Genius PLUS, NEO, Chief MI300T, Volkswagen VAS 821 101A, and BMW-approved units. Our #1 best-selling arm for rear body panels—an absolute must-have for any shop to harness the full clamping force of their spot welder.
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The Undisputed King of Rear Body Panels
The GYS G4 Arm (450 mm × 118 mm) is our number one selling deep-reach arm for a reason. Almost exclusively paired with brand new welder purchases, it is the exact right size for nearly every type of rear body panel a technician will encounter. Fully structural in nature, the G4 is built to withstand the extreme maximum force of double-sided guns on the GYSPOT PTI Genius PLUS, NEO, and compatible Chief MI300T spot welders. We never suggest owning a GYS-manufactured welder without having the G4 in your arsenal.
Applications & Compatibility
- Target Applications: Rear body panels, deep trunk pans, and extensive structural spans requiring high squeeze pressure.
- Machine Fitment: Designed for GYSPOT PTI Genius PLUS, NEO, Master, Evolution, and OEM-approved systems including the Volkswagen VAS 821 101A, BMW-approved PTI welders, and Chief MI300T / MI300i.
- Geometry: 450 mm reach × 118 mm height, offering massive clearance while maintaining true structural clamping force.
When to Maintain—and When to Replace
The G4 is a heavy-duty workhorse designed for longevity. You can maintain it almost indefinitely by swapping out cooling lines, caps, and connection plates. The only time you truly need to replace a G4 is if years of extreme structural pulls and heavy use finally cause it to lose tip-to-tip alignment. Once the structural geometry warps, a complete replacement is required to restore your machine's ability to hold factory tolerance. CRTE Member Pricing may provide significant savings on a complete replacement arm.
