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 > Stihl > Stihl 021 > Crankshaft & Bearings > STIHL CRANKCASE ASSEMBLY REPLACES STIHL PART # 1123-020-3033 Alternative Views: Our Price: $49.95 Product Code: STIHL-025-CRANKCASE Qty: Description STIHL CRANKCASE ASSEMBLY, WILL REPLACE THESE STIHL PARTS NUMBERS: 1123-020-3003, 1123-020-3003, 1123-020-3005, 1123-020-3000: NOTE THIS CRANKCASE ASSEMBLY WILL NOT FIT THE EASY START MODELS. NOTE: OIL PUMP COMES ALREADY INSTALLED IN CRANKCASE Related Products... STIHL CRANKSHAFT BEARINGS REPLACES STIHL # 9503-003-0311 STIHL ENGINE PAN FOR 021, 023, 025, MS210, MS230, MS250 REPLACES PART # 1123-021-2500 STIHL REPLACEMENT CRANKSHAFT BEARINGS & SEALS PART #'s 9503-003-0311, 9638-003-1581, 9639-003-1585 STIHL CRANKSHAFT SEALS REPLACES STIHL # 9638-003-1581 Our Price: $14.95 Add Our Price: $12.95 Add Our Price: $24.95 Add Our Price: $9.99 Add CRANKSHAFT BEARINGS AND SEALS, REPLACES PART # 9503-003-0340 AND 9638-003-1581 CRANKSHAFT SEALS, REPLACES PART 9638-003-1581 Our Price: $24.95 Add Our Price: $24.95 Add Average Customer Review: 5 of 5 Total Reviews: 1 Write a review. 0 of 0 people found the following review helpful: Great buying experience March 22, 2021 Reviewer: Floyd Geouge from Powhatan, VA United States Lil' Red Barn had the part I needed, processed and shipped pronto, and got me back to work much quicker than I thought possible.This is the first order for me but won't be my last. Was this review helpful to you?