HPI Baja 5b 5b Ss 5T Steel Clutch Bell 5mm Bore SBJ613 by GPM  [SBJ613]

Replacement steel clutch bell for Baja

The SBJ613 clutch bell is a steel 5mm-bore replacement designed for HPI Baja 5b, 5b Ss and 5T vehicles referenced in the title. It ships as a single-piece set and includes the retaining screw and lock nut required to secure the bell to compatible pinion arrangements.

Within the driveline the bell transfers torque from the motor pinion to the clutch assembly. Steel construction provides better wear resistance compared with softer materials when paired with appropriate pinions. Confirm the bore measures 5mm to match your motor or pinion shaft before fitting.

Fitment procedure: remove the current clutch bell, slide SBJ613 onto the pinion or motor shaft so the 5mm bore seats correctly, secure with the supplied screw and lock nut, and apply a modest torque to prevent loosening under vibration. Check thread engagement and runout to ensure reliable engagement with the spur gear and clutch shoes.

Fit the SBJ613 when replacing a worn bell or when matching gearing for HPI Baja 5b series models, and maintain correct alignment and secure fastening for dependable driveline performance.