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 MS 391 > STIHL MS391 REPLACEMENT PISTON 49MM, REPLACES PART # 1140 030 2003 Our Price: $29.95 Product Code: SHPKMS391-49MM Qty: Description Suitable, high quality replacement STIHL MS391 REPLACEMENT PISTON 49MM, REPLACES PART # 1140 030 2003 Related Products... 24"/25" REPLACEMENT PRO CHAIN, 3/8", .063" GAUGE STIHL REPLACEMENT TUNE UP KIT OREGON 32" BAR & CHAIN FITS STIHL MS661, MS660, MS462, MS461, MS460, MS440 MS441 STIHL 24" REPLACEMENT PROFESSIONAL CHAINSAW BAR AND CHAIN, NEW Our Price: $22.95 Add Our Price: $19.95 Add Our Price: $119.95 Add Our Price: $64.95 Add Stihl 42" Replacement BAR & CHAIN COMBO 3/8" PITCH.063" NEW 28" REPLACEMENT PRO CHAIN, .058" 3/8" STIHL 038, 32" REPLACEMENT BAR & CHAIN, 3/8" PITCH, .050", 105 DL, NEW, IN STOCK OREGON 72DP PROFESSONAL SAW CHAIN, FITS 20" BAR NIB Our Price: $129.95 Add Our Price: $26.95 Add Our Price: $99.95 Add Our Price: $18.95 Add Share your knowledge of this product with other customers... Be the first to write a review HUSQVARNA CLUTCH REMOVAL TOOL $24.95 Chainsaw TUNE UP KIT REPLACES, AIR FILTER, SPARK PLUG, FUEL FILTER $27.95 18" OREGON PROLITE BAR AND CHAIN COMBO $62.95 STIHL 075, 076, TS760 CYLINDER & PISTON KIT, 58MM, REPLACES STIHL PART # 1111-020-1206 $99.95