KYOSHO Pinion Gear (21T-48DP) Steel (UM321C)

The Kyosho Pinion Gear (21T, 48DP) is a genuine replacement/option part designed for reliable, consistent drivetrain performance. Manufactured in steel for durability, this 21-tooth, 48 pitch pinion delivers a precise mesh and long service life when paired with the correct spur gear. Listed as part number K.PNGS4821 and also referenced as UM321C, it is ideal for users seeking a robust 48DP pinion from a trusted brand.

Gearing Notes

• 48DP (48 pitch) pinions are intended to run with matching 48DP spur gears.
• A 21T pinion generally shifts gearing toward higher speed relative to lower tooth counts; always check temperatures and adjust as needed.
• Set correct gear mesh to minimise wear and noise and to maintain efficiency.

Suggested compatibility: applications that require a 48DP pinion gear with a 21-tooth count. Please ensure it matches your vehicle’s spur gear specification and motor interface before installation.