Mini Spyder MT Rear Case compatible with SER440001 - Serpent 440112  [SER440112]

Replacement housing for rear drivetrain

This rear transmission case is supplied as an RC-scale replacement for the Serpent Mini Spyder Monster truck RTR EP (SER440001). The case secures to the chassis and positions rear drivetrain parts to maintain spur and pinion engagement in the rear assembly.

The listing references the Mini Spyder MT name along with the SER440001 RTR chassis; check fitment to your chassis before fitting the new case. It is suitable to replace a cracked or worn rear case or to rejuvenate an older drivetrain housing and recover correct gear mesh.

Installation advice: detach the old rear case and transfer original fasteners and bearings into the replacement housing, clean mating surfaces, and verify gear mesh with slow manual rotation before tightening. Do not over-torque mounting hardware to avoid warping the faces, which can shorten gear life.

Durability role: this part is structural and affects gear alignment and drivetrain rigidity; a properly fitting rear case helps reduce uneven wear and prolongs the service life of drivetrain components.