OTC Cylinder Sleeve Removal Plates are designed to work in conjunction with OTC manual (no. 1200) and hydraulic (1202 and 1203) cylinder sleeve puller sets For use when pulling sleeves on truck, bus, and tractor engines, as well as those in other vehicles; can be used on wet or dry sleeves; no need to remove head studs Cast and machined heavy duty steel for durability under repeated use Plate measures 4.047 O.D, 3.840 I.D. (+.010 -.000) For 3-7/8 inch bore Perkins engines – AG4.212, A4.236, AG4.236, A6.354, A6.3541, ATC6.3541, AT6.354, AT6.3541