SKU: 40149513426

STIHL MS 391 Petrol Chainsaws - Agricultural & Landscaping

Sale price$351.00 Regular price$390.00
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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

STIHL MS 391 Petrol Chainsaws - Agricultural & LandscapingFeatures: Decompression valve The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi automatic; it must be pressed manually before starting, but then closes automatically. Advanced combustion technology Four overflow channels swirl the fuel air mix before

Features:

  • Decompression valve - The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.
  • Advanced combustion technology - Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.
  • Anti-vibration system - Intense vibration at the handles of power tools can lead to long-term effects on blood vessels in the hands and arms. STIHL has therefore developed an effective anti-vibration system whereby the oscillations from the machine's engine are dampened which significantly reduces vibrations at the handles.
  • Pre-separation air filtration system - STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.
  • Compensator - This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.
  • Variable-displacement oil pump - Allows a precise, demand-based delivery of oil. It's possible to reduce oil production by up to 50% in the E position. For very long cutting attachments or very dry wood, an additional volume of oil can be added by the user. similar to illustration.
  • Single-lever master control - All important functions such as start, choke, throttle and stop are operated via a single lever.
  • Side-chain tensioner - The tensioning screw can be found on the side of the chainsaw through the sprocket cover. This removes the need for contact with the sharp saw chain.
  • Ematic chain lubrication system - The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption by up to 50%.
  • Tool-free filler caps - Special catches on the fuel and oil tanks for easy opening and locking without the need for tools.

Technical Specification:

  • Displacement cm³: 64.1
  • Power output kW/bhp: 3.3/4.5
  • Power-to-weight ratio kg/kW: 1.9
  • Weight kg 1): 6.2
  • Sound pressure level dB(A) 2): 105
  • Sound power level dB(A) 2): 117
  • Vibration values left/right m/s² 3): 4/4
  • STIHL Oilomatic saw chain pitch/type: 3/8" RM
  • Chain brake: QuickStop
  • Oil tank volume cm³: 350
  • Tank volume l: 0.60

1) Without fuel, without bar and chain
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
3) K-factor according to DIR 2006/42/EC = 2m / s ²

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40149513426

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NickU179
Massapequa, US
★★★★★ 5
Great for High Mileage vehicles
Size: 12 fl. oz. (Pack of 1)
Added into my 2014 Dodge Grand Caravan with 100k miles before a family trip and eliminated knock, slow starts and improved our gas mileage by about 10% I think! super easy to add to the oil and very happy with results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2024
A
Verified Purchase
Angel Esteva
Whiting, US
★★★★★ 5
Great assortment of clips—fits well and saves a trip to the dealer
Color: 40pcs
Picked up this 40-piece set to replace missing/broken push-type retainers on my bumper/fender liner area. The assortment is a solid value—having extras on hand is way cheaper than buying a few at a time locally. The clips I used snapped in securely and held the panel tight without rattles. Tip: match the old clip’s size before installing (hole diameter + stem length). I tested a couple first to confirm fit and then finished the job. For basic trim/under-cover repairs, this is an easy, cost-effective kit to keep in the garage.
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Reviewed in the United States on January 25, 2026
B
Verified Purchase
Brooke
Lowell, US
★★★★★ 5
OEM Quality
Color: 40pcs
These fit perfectly! They are easy to install and very durable! I have no doubt that they are holding everything in place. They are also very easy to remove and do not break during removal, which is great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2023
J
Verified Purchase
J Thomas
Dallas, US
★★★★★ 5
They work fine.
Color: 40pcs
This item fits the bumper and inner plastic lining of 2003-2007 Honda Accord models.
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Reviewed in the United States on October 12, 2025
J
Verified Purchase
Jorge
Charlottesville, US
★★★★★ 4
They’re okay
Color: 40pcs
These fender clips are just okay. They fit reasonably well and did the job for a quick fix, but the quality isn’t the best. Some of them felt a bit flimsy, and a few broke during installation. If you’re in a pinch and need a temporary or budget-friendly option, these will work. Just don’t expect OEM-level durability. Decent for the price, but not great.
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Reviewed in the United States on June 23, 2025

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