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... 16" OREGON PROLITE BAR & CHAIN FIT STIHL 031 034 036 MS310 MS390 039 MS311 MS391 16" CHAIN 60DL 3/8 FIT STIHL 031 032 034 036 041 038 039 MS310 MS311 MS390 MS391 STIHL 038 20" PROFESSIONAL REPLACEMENT BAR & CHAIN COMBO, 3/8" , 72 DL, NEW 36" PROFESSIONAL REPLACEMENT BAR & CHAIN COMBO, 3/8" PITCH, NEW Our Price: $59.95 Add Our Price: $17.95 Add Our Price: $59.95 Add Our Price: $109.95 Add OREGON 100' ROLL OF 72JGX PROFESSONAL CHISEL CHAIN NIB OREGON 72DP PROFESSONAL SAW CHAIN, FITS 20" BAR NIB 18" OREGON PROLITE BAR AND CHAIN COMBO STIHL BAR NUT, REPLACES STIHL PART # 0000-955-0801 Our Price: $395.00 Add Our Price: $18.95 Add Our Price: $62.95 Add Our Price: $2.50 Add Share your knowledge of this product with other customers... Be the first to write a review STIHL MS240 REPLACEMENT PISTON PART# 1121-030-2005,NEW $29.95 NEW MCCULLOCH AIR FILTER 85387 FITS SP70 80 81 PM850. CP70 850 805 $29.95 HUSQVARNA CYLINDER GASKET, NEW, OEM $5.00 STIHL REPLACEMENT CRANKCASE REPLACES PART # 1130-020-3033 OR 1130-020-3034 $39.95