All of our new parts are aftermarket replacements. Compatible with Ford Tractor(s) Dexta, Super Dexta. Replaces Ford OEM nos 81803971, 957E6200. Compatible with Landini Tractor(s) 4830 (D3.152 Diesel Engine). Replaces Landini OEM nos 3637439V91. Compatible with Massey Ferguson Tractor(s) 35 (3.152 Engine), 50 (3.152 Engine), 65 (4.203 Diesel Engine s/n 2820092-earlier), 65 (4.203 Diesel Engine s/n 2820092-later), 135 (A3.152 Gas Engine), 135 (D3.152 Diesel Engine s/n ending in D), 135 (D3.152 Diesel Engine s/n ending in DL), 150 (A3.152 Gas Engine), 150 (D3.152 Diesel Engine s/n ending in D), 230 (D3.152 Diesel Engine s/n ending in D), 230 (D3.152 Diesel Engine s/n ending in DL), 235 (D3.152 Diesel Engine s/n ending in D), 235 (D3.152 Diesel Engine s/n ending in DL), 235 (D3.152 Diesel Engine s/n ending in DSL). Compatible with Massey Ferguson Construction & Industrial(s) 20 (A3.152 Gas Engine), 20 (D3.152 Diesel Engine), 40 (A3.152 Gas Engine), 40 (D3.152 Diesel Engine), 200 (D3.152 Diesel Engine s/n ending in D), 203 (D3.152 Diesel Engine s/n ending in D), 203 (3.152 Engine), 205 (D3.152 Diesel Engine s/n ending in D), 205 (3.152 Engine), 356 (4.203 Diesel Engine), 2135 (D3.152 Diesel Engine s/n ending in D), 2244 (D3.152 Diesel Engine s/n ending in D). Replaces Massey Ferguson OEM nos 3637439M91, 731676M91, 735391M91, 747010M91, 747101M91. Compatible with Perkins Engine(s) A3.152, A4.203. Replaces Perkins OEM nos M7BJ0052, 52813, 59908. Replaces Mfg nos VPB6000. 9.000 Center to Center. All States Ag Parts Item No.