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... CARVING SPROCKET FITS ECHO CS400, CS4100, CS420, CS4200, CS4400,CS4510,CS4600 ECHO CS-400, CS-370, CS-420 REPLACEMENT SPROCKET, .325" 7 TOOTH DRIVE, BEARING Our Price: $25.95 Add Our Price: $17.95 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? HUSQVARNA REPLACEMENT MUFFLER BRACKET. REPLACES PART #503522902 $7.95 REPLACEMENT STARTER SPRING, REPLACES OEM #501763101. NEW $9.95 2 BRAND NEW CONNECTING RODS FITS KOHLER K532, K582 STANDARD 48 067 12 $139.95 PISTON KIT FITS PIONEER P50, P50S P51 52.38MM CYLINDER & EXHAUST GASKETS & SEALS $64.95 OREGON 100' ROLL OF 72LG PROFESSONAL CHISEL CHAIN NIB $399.95 PIONEER P62, P61, P60, PISTON & RING KIT, 57.15MM, PART # 475397, NEW, USA SHIP $34.95 PISTON KIT FITS ECHO CS-590, CS600P, 45MM KIT, REPLACE ECHO PART # P021038790 $29.95 NEW 1114-350-0502 FUEL GAS CAP FITS STIHL 020 030 031 032 CHAINSAWS $13.95 PISTON RING OEM THIN STYLE FITS PIONEER P50, P51, P52, PART # 474590, 507474590 $19.95