Perkins 4.41 Diesel Engine RUNS EXC! RARE!! LM 4.1 1004 4-41 236 Massey Tractor RARE, RARE, RARE INTERMEDIATE ENGINE, 4.41 MODEL. 4.1 LITER ENGINE, TRANSITIONAL ENGINE FROM 236 SERIES TO 1004 SERIES. Runs excellent, complete as pictured. ONLY ONE IN THE COUNTRY FOR SALE !!