Main bearing set Steel Core crank 0.25 / case 0.5 / 21mm Steel core, suited for high power engines Beetle, Karmann 34hp- 8.60- Type 181 (Kübel) 8.69-12.79 Bus T1 34hp- 8.60- 7.67 Bus T2 1600 8.67- 7.79 Bus T3 CT-Motor 1600 5.79-12.82