This aftermarket kit fits 1/18 TRX4M crawler platforms and swaps in sealed steel bearings for wheelboxes, axles and drivetrain points to reduce friction and resist contamination encountered on tracks and trails.
The package includes the common metric sizes used in the listed models so you can perform a full bearing refresh in one session. Sealed construction reduces routine servicing compared with open bearings while keeping OEM fit dimensions for straightforward installation.
For routine service or component upgrades on the listed TRX4M 1/18 models, this sealed steel set provides matching sizes for a complete replacement and helps maintain drivetrain performance on rough terrain.
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