[. . . ] [. . . ] REPLACEMENT PARTS ­ MODEL ST720r SNOW THROWER ATTACHMENT (Serial Number 509020067 and greater) 2 1 3 4 5 6 31 1 8 7 10 12 13 11 9 10 13 30 14 21 22 23 26 27 28 29 30 32 34 33 15 24 25 35 36 16 20 17 18 30 19 39 38 37 41 40 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Part No. 181345 612605 181346 181347 181348 181605 181350 181351 181606 181353 181354 181607 181355 181356 181357 181358 181359 181360 181361 181362 181363 Description Screw Hanger Accessory Vane Actuator Knob Grommet Vane Actuator Shaft Cover Vane Actuator Washer Vane Actuator Bracket Drive Housing Assembly Screw Flexible Drive Shaft Screw Clamp Power Shaft Assembly Drive Housing Bracket Scraper Retaining Ring Snowthrower Housing Screw Screw Drive Pulley Item 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Part No. 181364 181365 181366 181367 181368 181369 181370 181371 181372 181373 181374 181375 181376 181377 181378 181379 181380 181381 181382 181383 Description Idler Arm Idler Spring Rotor Shaft Washer Driven Pulley Drive Belt Ball Bearing Idler Pulley Retainer Screw Belt Case Cover Flange Lock Nut Thrust Washer Left Rotor Bushing Outer Vane Vane Mount Center Vane Washer Screw Rotor Right Rotor Bushing Reissued 2/00 [. . . ] [. . . ]