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... 28" REPLACEMENT PRO CHAIN, .058" 3/8" 16" REPLACEMENT PRO CHAIN, .058" 3/8" STIHL REPLACEMENT TUNE UP KIT Stihl 42" Replacement BAR & CHAIN COMBO 3/8" PITCH.063" NEW Our Price: $26.95 Add Our Price: $26.95 Add Our Price: $19.95 Add Our Price: $129.95 Add STIHL MS 310 REPLACEMENT 16" BAR & CHAIN COMBO 3/8 60dl STIHL 056 SUPER 25" FOR BAR & CHAIN COMBO 3/8" 84 DL 18" CHAINSAW PROFESSIONAL CHAIN, 73LG-68 20" OREGON PROLITE BAR AND CHAIN COMBO Our Price: $35.95 Add Our Price: $64.95 Add Our Price: $26.95 Add Our Price: $64.95 Add Share your knowledge of this product with other customers... Be the first to write a review HUSQVARNA, JONSERED PISTON STOP $7.95 CYLINDER & PISTON FITS STIHL 041, 041AV, 041 FARM BOSS, 1110-020-1203, NEW $129.95 WALBRO LME LMB LMG LMV CARBURETOR REBUILD KIT CLINTON WISCONSIN ONAN K1-LMEG USA $23.95 Stihl 044 Piston 50 mm $24.95 STIHL MS361 PISTON & CYLINDER, REPLACES 1135-020-1202 $99.99 Husqvarna 351 Piston Assembly 44mm $29.95 32" REPLACEMENT PRO CHAIN, 3/8" $29.95 CYLINDER GASKET REPLACES 506158201 $5.99 HUSQVARNA JONSERED 537132001 CYLINDER KIT, 338T, CS2139T $185.00