GENUINE SHINDAIWA CLUTCH FITS B450 A056000452 MS440 With a longer center dog With a longer center dog that lines up with the chain kerf Part 900113 (THROTTLE CONTROL KIT HIP MOUNT) Where Used: · 900113 Hip Mount Throttle Control Kit >900113 Hip Mount Throttle Control Kit · PB 500H S N: P01913001001 P01913999999 >RePower Hip Mount Throttle Control Kit · PB 500H S N: P02112001001 P02112999999 >RePower Hip Mount Throttle Control Kit · PB 500H S N: P02311001001 P02311999999 >RePower Hip Mount Throttle Control Kit · PB 500H S N: P31312001001 P31312999999 >RePower Hip Mount Throttle Control Kit · PB 500H S N: P31513001001 P31513999999 >RePower Hip Mount Throttle Control Kit · PB 500H S N: P33011001001 P33011999999 >RePower Hip Mount Throttle Control Kit Part A056000452 (CLUTCH ASSY) Where Used: · B450 S N: T83626001001 T83626999999 >CLUTCH · B450F S N: U16026001001 U16026999999 >CLUTCH · B452 S N: U42429001001 U42429999999 >CLUTCH · B452R S N: U42529001001 U42529999999 >CLUTCH