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" REPLACEMENT PRO CHAIN, .058" 3/8" STIHL MS 310 REPLACEMENT 16" BAR & CHAIN COMBO 3/8 60dl STIHL REPLACEMENT AIR FILTER BAR WRENCH 13MM-19MM Our Price: $26.95 Add Our Price: $35.95 Add Our Price: $12.95 Add Our Price: $6.99 Add STIHL 24" REPLACEMENT PROFESSIONAL CHAINSAW BAR AND CHAIN, NEW STIHL REPLACEMENT TUNE UP KIT 20" PROFESSONAL REPLACEMENT CHAIN .058" 18" OREGON PROLITE BAR AND CHAIN COMBO Our Price: $64.95 Add Our Price: $19.95 Add Our Price: $26.95 Add Our Price: $62.95 Add Share your knowledge of this product with other customers... Be the first to write a review OIL PUMP RUBBER RING FITS STIHL 041G 041AV 041 FARM BOSS 1110-647-9000, USA SHIP $8.95 HUSQVARNA MUFFLER, REPLACES PART # 503711307, NEW $39.95 EFCO REPLACEMENT PISTON KIT 40MM, REPLACES PART # 50120034A $29.95 OEM REPLACEMENT CARBURETOR REPLACES PART # 503283207 OR 503281803 $79.99 COMPLETE CARBURETOR WALBRO,NEW, REPLACES PART # $109.99