UJD40741 Spark Plug---Autolite 386

Fits: 60, 66, Super 44, Super 55, Super 66, 70, 77, Super 77, 88, Super 88, 99, Super 99, OC-6, AG5, 550, 660, 770, 880, 1550, 1555

Fits: MM 2 Star, 4 Star, 5 Star, M5, U302, 335, 445, G, R, U, Z, G704, G705, M504, M602, M604, M670, G900, G950, G1050, G1350

Dimensions: 18mm thread----1/2" Reach----7/8" Hex