The Serpent 401017 Rear Differential Axle has been produced for the S400 and S411 series as a solid replacement or upgrade option. Engineered with accuracy, it supports reliable drivetrain behaviour and lasting service life for drivers who value consistency.
This axle is manufactured to seat precisely in the Serpent S400 and S411 layouts, reducing slop and improving drivetrain feel. The tough construction helps the axle stand up to regular running and keeps power delivery predictable.
Confirmed compatible with the S400 1/10 190mm EP (SER401001) model, the Serpent 401017 installs cleanly into an existing setup. The replacement process is straightforward, letting you swap parts without excessive downtime.
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