From inside (document excerpt):
PARTS LIST NO. DATE 530165459 Replaces 530165459 06/06/08 WEED EATER Rr PARTS LIST PARAMOUNT PARTS LIST POULANR PARTS LIST Note: Illustration may differ from actual model due to design changes 3 4 6 R R CHAIN SAW MODEL(s) P4018WM PAGE NO. 7/03/08 1 27 TYPE 1,2 7 8 16 1 2 WARNING All repairs, adjustments and maintenance not described in the Operator’s Manual must be performed by qualified service personnel.
Clutch Washer Kit 46 51 50 52 53 Ref. Part No. 530057893 530057908 530057891 530016080 530071888 530069216 530069247 530095649 530023877 530071945 530057905 530071945 530057907 530016419 530047192 530016064 530015922 530057937 530057911 530015127 530016134 Description Knob-Choke Spring-Ign. Switch Lever-Ign. Switch Screw Kit-Trigger/Lockout Kit-Fuel Line (Large) Kit-Fuel Line (Small) Assy-Fuel Pick Up Fitting-Fuel line Kit-Clutch Washer Assy-Clutch Drum 3/8 ” Kit-Clutch Washer Assy-Clutch Washer-Large Clutch Assy-Fuel Cap w/ret Screw Nut- “U ” type speed Assy-Flywheel Shield-Heat Washer-Flywheel Nut-Flywheel IPL Ref. . Part No. 530015920 530057890 530042095 530058816 530056402 530069232 530016432 530016080 530058786 530057236 530057897 530016416 530058863 530071893 530016432 530016133 530057910 530015917 Description Screw Pulley-Starter Spring-Starter Housing-Fan Handle-Starter Kit-Rope Screw Screw Assy-Oil Vent Assy-Oil Cap w/ret. Handguard Spring-Handguard Assy-Chassis (Incl. 5,6,7,8,9,15,16, 17,19,31,33,37) Kit-Chainbrake Screw Bolt-Bar Plate-Bar Nut-Bar Ref