Briggs & Stratton 555661 PISTON ASSEMBLY 010 Blade Length 20 3 8" PCW3000 or PCW4000 – as PCW3000 or PCW4000 – as well as your accessories 35145 Craftsman Electrics (1983 Models Forward Dayton 2Z463 Dayton 4Z397 Dayton 7Z627 Echo CS 590 Echo CS 600P Allis Chalmers 4Z251A Echo CS 620PW Echo CS 650 Echo CS 650EVL Echo CS 660 Echo CS 670 Echo CS 6700 Echo CS 680 Echo CS 701 Echo CS 702 Echo CS 750 Echo CS 750EVL Echo CS 8000 Echo CS 800P Green Machine 7600 McCulloch 43840 McCulloch 44114 Allis Chalmers 295 McCulloch 1000 McCulloch 43871 McCulloch 43900 McCulloch 43931 McCulloch 43961 McCulloch 55 McCulloch 555 McCulloch 560 McCulloch 570 McCulloch 43992 McCulloch 60 McCulloch 605 McCulloch 610 McCulloch 620 Echo CS 620P McCulloch 655 Allis Chalmers 2Z462A McCulloch 650 McCulloch 700 McCulloch 850 McCulloch CP70 McCulloch CP 70L McCulloch Double Eagle 50 McCulloch Double Eagle 80 McCulloch Eager Beaver 3 Briggs & Stratton 555661 PISTON ASSEMBLY 010Product Features: Not only are Briggs Stratton genuine parts guaranteed to fit