All of our new parts are aftermarket replacements. Compatible with John Deere Combine(s) 6600, 6601, 6602, 6620, 6622. Replaces John Deere OEM Number(s) AH75104, OJD6600, V12044. Includes 4LH/ 4RH Angle Bar w/ 2 rows of holes and 3/8"x3/4" NF & 3/8"x 1" NC Grade 8 Mounting Hardware. All States Ag Parts Item No.