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? NEW CYLINDER & INTAKE GASKETS 2 SEALS FIT PIONEER P20, P21, P24, P25, P26, P28 $29.95 2 BRAND NEW CONNECTING RODS FITS KOHLER K532, K582 STANDARD 48 067 12 $139.95 STIHL STARTER, REPLACES PART #1125-080-2105 $29.95 OREGON 100' ROLL OF .325 PITCH, .050 GAUGE CHISEL CHAIN $399.95 REPLACEMENT GAS LINE REPLACES 1127 358 7705 $8.95 STIHL CLUTCH, REPLACES OEM # 1128-160-2004 $19.95 NEW PISTON KIT FITS ECHO CS351VL, 40MM KIT REPLACES P021048650, SHIPS USA $32.95 JONSERED CS2188, 2188, CS2186, 2186 OEM CARBURETOR, PART # 501355201 $119.95 16" REPLACEMENT CHAINSAW CHAIN 66DL .325 $19.95