New Carburetor Replace For ZAMA RB-K70 RB-K70A" High Quality Aftermarket Carb 100% Purchasing Guarranteed Fitment: They are for Replace following OEM Part #: A02100380 A021000722 A021000720 A021000721 A021000723 OREGON 50-621 For ZAMA Carburetors as: RB-K70A RB-K66A RB-K66B, RB-K70A, RB-K66A-B For Echo Models: SRM201, SRM230, SRM231, HC160, HC180 & HC200 Specs1 Package Including Following: 1 X Carburetor 1 X Air Filter 1 X Fuel line assy 2 X filters 2 X primer Bulbs 1 X spark Plug 2 X Mounting Gaskets