TISCO Piston Kit PK20 fits Ford Tractor 4000, 801, 901. TISCO Piston Kit PK20 fits Ford Tractor 4000, 801, 901Sleeve & piston kit, 3.9 bore. Tractors: 801, 901, 4000 (172 CID diesel engine). Contains EAF6055D sleeves, 313879 pistons, C5NN6149AA rings, pins & retainers. Contains: 4-SAT20 FD cyl slv set. SpecificationsBrandTISCOPart NumberPK20For MakeFord_New HollandFits / ApplicationMakeEquipmentModelsFordTractor4000, 801, 901Please NoteOEM brand names and part numbers are for reference only and do not imply this is an OEM part. Please verify fitment using your OEM part number or equipment model and serial number before purchasing; message us if you need help confirming fit. Sleeve & piston kit, 3.9 bore. OEM brand names and part numbers are for reference only and do not imply this is an OEM part. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. AgSmart Rotary Blade 22-1/2 CCW 00781341 fits Rhino TW15, fits Bush Hog RD5. AgSmart Rotary Cutter Blade 18-1/2 CW fits Rhino TS12 Replaces 00790107. AgSmart 19 in Counter Clockwise Rotary Cutter Blade fits Woods 57099 57099KT. 15 in x 10 in 8 Bolt Agricultural Wheel 4500 lb Replaces 0505747 534362R1.