This is an RC motor mount plate offered as JR-TRX402-BK and supplied by Jazrider for TRX-4 named applications. The aluminum design is intended to locate the motor and interface with the vehicle transmission area, providing a stiffer mounting solution versus many stamped or composite parts.
Fitment is aligned with the TRX-4 listing in the product title; you should confirm that your chassis has a matching screw pattern and motor position before assuming compatibility. No claim is made for interchangeability with other chassis unless their mount geometry and screw layout match the TRX-4 standard.
Installation typically requires removing the existing motor mount, moving the motor and any shims, and fitting the replacement plate using the same fastener positions. Ensure the motor pinion and spur gear are correctly aligned on reassembly to avoid excessive mesh or binding; the component serves to assist drivetrain alignment rather than replace other drivetrain parts.
As an aluminum accessory for scale and trail rigs, the plate contributes to heat dissipation and improved mounting rigidity. Regularly verify screw torque and inspect mounting holes for wear following intensive use to keep motor alignment consistent.
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