HuiNa CY1592 Big Arm Gearbox (Metal Gears)

The HuiNa CY1592 Big Arm Gearbox (Metal Gears) is a replacement gearbox from HuiNa, supplied under part number CYP1090. Featuring a metal gear train, it offers a durable drive solution for RC construction models that use a big-arm mechanism.

This spare is well suited to routine maintenance or repairs where a metal-geared gearbox is required. Please consult your model’s manual for installation guidance and to confirm suggested compatibility.

Metal gears can provide improved wear resistance and smooth, consistent motion under load compared to plastic alternatives. The clear part identification (CYP1090) also makes future re-ordering straightforward during ongoing maintenance.