Starter Drives
This starter drive shaft assembly is a vital precision part within the starter transmission path. It transfers torque smoothly from the motor to the overrunning clutch to crank the flywheel. After the engine starts, it allows relative sliding under speed difference, protecting internal starter gears from damage caused by reverse impact.
- Internal Model No: T83401
- Material: 20CrMnTi
- Feature: Quenched‑and‑tempered shaft body, delivers good overall toughness against torsion bending
- Application: Automotive starter motors
Abnormal noise, delayed engagement or unstable torque delivery do not always mean a faulty motor. Quite often they are triggered by worn splines, scratched shaft surfaces or excessive clearance on the drive shaft. Many look‑alike replacement parts only match in outer shape, without precise control over spline module, shaft straightness and transition fillets, which leads to sticking and accelerated wear under continuous load.
NO OF TEEEH:20
NO OF SPLIN:10
ROTATION:
PINION DIA:14.8
BUSHING DIA:12
DRIVE DIA:
LENGTH:117/132
Our common quality system applies to every product family. First-piece, in-process and final inspection records are managed through the production workflow.
- IATF 16949:2016Automotive quality management system
- MES traceabilityProduction and inspection records
- 30+ inspection machinesGear, dimensional and profile inspection







