Add to Favorite Sellers. Base Engine Overhaul Kit Fits Farmall H HV O4 W4 I4 Tractors 374312R93 354475R95. Quality Aftermarket Base Engine Overhaul Kit Fits International Harvester IH Farmall H, HV, I4, O4, OS4, W4 Tractors Specifications 3.4375 overbore Includes sleeves, stepped head aluminum pistons, piston ring sets, piston pins & pin retainers. Governor seal not included. Replacement Numbers PK156, 374312R93, 354475R95, 1342802C1, 381729R93, 43976DA, 43976DB, 43976DC, 45018DA, 45018DB, 45197DC, 45197DD, 45394DA, 45394DB, 45394DC, 45395D, 45395DA, 53888D, 55620D, 55620DC, PK156. Don’t forget to leave us feedback and we will be sure to do the same! . Thank you for this opportunity to earn your business! Thank you for looking! We appreciate the opportunity to earn your business. Feel free to ask any questions you may have.