0388728 PISTON ASSY., .030 O.S. JOHNSON 4R78E, 4R79D PISTON Price: query Add to cart Go to cart Rating: 83 Buy PISTON ASSY., .030 O.S. 0388728 JOHNSON genuine, new aftermarket parts with delivery Number on catalog scheme: 1 Compatible models: 4R78E 4R79D JOHNSON BRP JOHNSON entire parts catalog list: 4R78E, 4RL78E, 4W78E 1978 CRANKSHAFT AND PISTON » 0388728 4R79D, 4RL79D, 4W79D 1979 CRANKSHAFT AND PISTON Parts piston JOHNSON: 0388727 0388727 PISTON ASSY., .02 O.S. 4R78E, 4R79D 0388726 0388726 PISTON ASSY., Std. 4R78E, 4R79D