Serpent SER401906 21T Pulley for X20 FWD Track Tuned  [SER401906]

Serpent SER401906 Pulley 21T X20FWD
Price:
CAD$38.23
Brand:
Serpent
Model:
SER401906
Condition:
Brand New
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Install and Improve Your X20 FWD Drivetrain

The Serpent SER401906 Pulley 21T is a dedicated replacement part for the Medius X20 FWD 1/10 EP range. It helps deliver smoother power transfer so your car feels more consistent during laps.

Engineered Accuracy

Manufactured with close tolerances, the 21T pulley promotes accurate gear meshing to preserve speed and torque balance. That precision is useful when dialing in handling or trimming lap times.

Fit and Use Cases

This pulley is compatible with the Serpent X20 FWD 1/10 EP models (SER400035, SER400036). It installs into existing drivetrains with minimal fuss, suitable for experienced tuners and newcomers alike.

Can I use the 21T pulley on other FWD Serpent kits?

This 21T unit was made for the X20 FWD 1/10 EP series, so fit on other kits is not guaranteed. Check shaft size and mounting details before swapping it into a different model.

Any tips for installing the Serpent SER401906 pulley?

Clean mating surfaces, confirm gear alignment, and torque fasteners to spec. A light thread locker on set screws can prevent loosening under race conditions.

How should I maintain the pulley?

Inspect for wear after heavy use, keep the teeth free of debris, and replace if you notice scoring or uneven engagement to protect the rest of the drivetrain.

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