Arrowmax AM-448039 48P 39T Pinion Gear (SL)  [AM-448039]

Fine-tuned drivetrain control with Arrowmax AM-448039

The Arrowmax AM-448039 pinion is engineered as a practical upgrade for RC enthusiasts who want crisper power delivery. Its 48-pitch, 39-tooth profile promotes consistent engagement and reduced noise in typical 48P gear trains, helping maintain smooth operation during spirited runs or practice sessions.

Benefits of the 48P 39T option

This 39-tooth pinion offers a measured compromise between acceleration and top speed while keeping tooth contact accurate. The precise cutting helps lower wear on mating spur gears, which can extend service intervals for your drivetrain parts.

Fitment notes and simple swap

Made for 48-pitch systems, the AM-448039 fits most common setups using that pitch. Installation is straightforward: check bore and shaft type on your model, secure with the correct set screw, and fine-tune mesh to avoid excessive backlash.