This steel pinion is an RC-scale replacement suitable for Kyosho Inferno models that accept a 0.8M pinion. The part is listed as Kyosho PNGS0819, with 19 teeth and a 0.8M pitch, and is described as a direct spare for compatible Inferno configurations.
Source material references compatibility with Inferno MP10e and MP10Te and positions the part in the MP series context that includes MP11e; it is also shown with IF403B and IFW639-58/59/60 spur options where a 0.8M pinion is used. Always confirm motor shaft diameter, bore fit, and set screw alignment before fitting to prevent compatibility issues.
From a performance standpoint the 19T pinion affects the final drive ratio, providing a middle-ground between acceleration and top speed on standard electric RC tracks. When selecting pinion sizes check mesh clearance against the spur, ensure correct hex/set screw torque, and inspect adjacent ball bearings for signs of wear to protect drivetrain longevity.
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