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... OREGON 100' ROLL OF 72JGX PROFESSONAL CHISEL CHAIN NIB BEARINGS & SEALS FIT STIHL MS311 MS391 MS291 MS271 MS280CHAINSAWS 20" REPLACEMENT PRO CHAIN, 3/8" OREGON 72DP PROFESSONAL SAW CHAIN, FITS 20" BAR NIB Our Price: $395.00 Add Our Price: $19.95 Add Our Price: $22.95 Add Our Price: $18.95 Add 32" REPLACEMENT PRO CHAIN, 3/8" 36" PROFESSIONAL REPLACEMENT BAR & CHAIN COMBO, 3/8" PITCH, NEW OREGON 100' ROLL OF 72DP PROFESSONAL SAW CHAIN NIB 20" PROFESSONAL REPLACEMENT CHAIN .058" Our Price: $29.95 Add Our Price: $109.95 Add Our Price: $399.95 Add Our Price: $26.95 Add Share your knowledge of this product with other customers... Be the first to write a review NEW SEARS SUBURBAN CRAFTSMAN MOWER HIGN LOW SHITER SEAL 6270H, 632006270 FITS 917-25751 $9.99 ENGINE OVERHAUL KIT FITS BRIGGS VANGUARD MODEL38 CUBIC INCH .010" OVERSIZE PISTONS RODS GASKETS $429.95 STIHL REPLACEMENT SPROCKET BEARING, NEW $7.99 CYLINDER GASKET REPLACES 506158201 $5.99 PISTON RINGS FITS BRIGGS V TWIN, OVER HEAD VALVE ENGINES, RINGS 793561, 792026 $59.95 2 SETS 694004 PISTON RINGS, FITS BRIGGS & STRATTON V TWIN INTEK, NEW SHIPS USA $59.95 REPLACEMENT THROTTLE LOCK, REPLACES PART # 503854401 $4.99 Husqvarna 351 Piston Assembly 44mm $29.95 .404" SPUR 7 TOOTH SPROCKET FITS ECHO CS451 CS452 CS500 CS550 CS510 CS600 CS610 $19.95