When routine service is on the checklist, the Serpent 421011 Differential Balls are a sensible swap. Made for the S240 Electric Pancar line, these replacement balls help the differential rotate cleanly so the car behaves predictably on tight tracks.
The component design focuses on reducing friction and wear inside the differential assembly. Replacing tired balls with Serpent 421011 units helps maintain steady handling and reduces unexpected drivetrain drag during heats.
These balls are suitable for Serpent S100, S120 and S240 models and function as direct replacement parts. They are intended for drivers who perform regular maintenance and want reliable diff behaviour without major modifications.
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