2025 STIHL MS 311

2025

MS-311

New

MS-311

STIHL CHAINSAW MS 311-Z 20 33RS3 STIHL MS 311 Chainsaw – Gas – 20" Bar – 33RS3 Chain Specs General Category: Mid-Range Professional Gas Chainsaw Model: STIHL MS 311 Power Source: Gasoline Guide Bar Length: 20 in. (50 cm) Guide Bar: STIHL Rollomatic® E Saw Chain: STIHL 33RS3 Rapid Super 3 Chain Pitch: 3/8 in. Chain Gauge: .050 in. (1.3 mm) Drive Links: 72 Applications: Firewood cutting, tree felling, storm cleanup, agriculture, horticulture, and property maintenance. Engine Engine Type: STIHL 2-MIX® 2-stroke gasoline engine Displacement: 59.0 cc (3.6 cu. in.) Power Output: 3.1 kW (4.2 HP) Maximum Engine Speed: 13,000 RPM Idle Speed: 2,800 RPM Fuel Tank Capacity: 20.3 oz. (0.60 L) Cutting Equipment Bar Length: 20 in. (50 cm) Chain: STIHL 33RS3 Rapid Super 3 Chain Pitch: 3/8 in. Chain Gauge: .050 in. Drive Links: 72 Chain Lubrication: Fully automatic, speed-controlled adjustable oil pump with manual flow control Chain Oil Capacity: 11.8 oz. (0.35 L) Chain Sprocket: 7-tooth rim sprocket Dimensions & Weight Powerhead Weight: 13.8 lbs. (6.2 kg) System Weight (20" Bar & Chain): Approximately 17.0 lbs. (7.72 kg) Power-to-Weight Ratio: 2.0 kg/kW Operator Features Decompression valve for easier starting Long-life air filtration system with pre-separation STIHL Anti-Vibration System Side-access chain tensioner Toolless fuel and oil caps Master Control Lever™ Adjustable automatic chain oiler Ematic™ lubrication system Chain brake and throttle trigger interlock for enhanced safety Key Features Powerful 59 cc STIHL 2-MIX® engine delivering 4.2 HP 20" Rollomatic® E guide bar with 33RS3 full-chisel chain for fast, aggressive cutting Fuel-efficient engine offers up to 20% better fuel economy than previous-generation models Long-life air filtration system extends maintenance intervals Heavy-duty construction designed for frequent farm, ranch, and forestry use Excellent choice for felling medium to large trees, processing firewood, and demanding property maintenance.