SHUTTERSTAT REPAIR KIT FOR M939 SERIES 5 TON TRUCKS. 

THIS KIT FIXES ISSUES WITH AIR LEAKS AND FAILURES FOUND IN THE SHITTERSTAT. WITH PRICES RISING AND AVAILABILITY DIMINISHING, DONT THROW OUT YOUR SHUTTERSTAT WHEN YOU CAN EASILY REPAIR AND RE USE IT FOR A FRACTION OF THE COST. 

BE SURE TO CHECK OUT THE DETAILED VIDEO ON HOW TO COMPLETE YOUR REBUILD. 

PART # CA20000K