Lil' Red Barn Toggle Search Account Checkout Cart Home Parts & Tools Electrical Filters Fuel System Parts Tractor Parts 4-Stroke Engines Chainsaws Hedge Trimmers Leaf Blowers Safety Apparel Tools and Testers Service Manuals Briggs and Stratton Canadian Dolmar Echo Homelite Husqvarna Jonsered Kohler Makita McCulloch Onan Partner Pioneer Poulan Information Chain Reference Chart Chainsaw Chain Info - Maintenance & Safety Manual Testing Information and Diagrams for 2-Cycle Engines Watch How To Videos Contact Us Account Search site Submit search Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Parts & Tools > Chainsaws > Echo > Echo CS 420 > ECHO CS-400, CS-370, CS-420 REPLACEMENT SPROCKET, 3/8" 6 TOOTH DRIVE, BEARING Alternative Views: Our Price: $17.95 Product Code: SP5083 Qty: Description A HIGH QUALITY REPLACEMENT ECHO CS-400, CS-370, CS-420 REPLACEMENT SPROCKET, 3/8" 6 TOOTH DRIVE, INCLUDES A FREE BEARING, REPLACES ECHO PART # A556000401 SHIPS FROM USA WITH A TRACKING NUMBER Related Products... ECHO CS-400, CS-370, CS-420 REPLACEMENT SPROCKET, .325" 7 TOOTH DRIVE, BEARING CARVING SPROCKET FITS ECHO CS400, CS4100, CS420, CS4200, CS4400,CS4510,CS4600 Our Price: $17.95 Add Our Price: $25.95 Add Average Customer Review: 5 of 5 Total Reviews: 1 Write a review. 0 of 0 people found the following review helpful: ECHO CS-400 REPLACEMENT SPROCKET May 28, 2025 Reviewer: PATRICK HORRAS from Fairfield, IA United States GREAT PRODUCT MORE DURABLE THAN OEM Was this review helpful to you? CYLINDER, EXHAUST GASKET & CRANKCASE GASKET WITH SEALS FITS PIONEER P50 P51 P52 $49.95 PRO SPROCKET FITS STIHL 030 031 032 041 SAWS, 3/8" PITCH 7 TOOTH FREE BEARING $25.25 NEW CYLINDER & INTAKE GASKETS 2 SEALS FIT PIONEER P20, P21, P24, P25, P26, P28 $29.95 PIONEER P62, P61, P60, PISTON & RINGS, CYLINDER EXHAUST GASKETS, NEW, USA SHIP $49.95
ECHO CS-400 REPLACEMENT SPROCKET 
