STIHL MS 400 C-M petrol chainsaw 45 cm

If you’re felling, sectioning or processing medium stands and want real pace without excess weight, the STIHL MS 400 C-M delivers. Its strong power-to-weight balance and rapid acceleration help you cut faster with less fatigue, while smart engine management keeps performance consistent in changing conditions.

Built around STIHL’s efficient 2-MIX engine and M‑Tronic management, it starts easily, runs cleanly and holds speed under load. Vibration control, a grippy layout and clear fuel level marking make long days in the woods more manageable and predictable.

Where it shines

• Felling and delimbing in medium-density forestry
• Cross-cutting hardwood and softwood efficiently
• Fast, controlled cuts when sectioning storm-damaged trees
• Pro users who need speed without unnecessary bulk

Why users choose it

• Power held in check by STIHL M‑Tronic for optimal output
• Quick to start with ElastoStart and a decompression valve
• Lower fatigue from the STIHL anti‑vibration system
• Clean running via long-life air filtration with HD2 filter

In the cut and in hand

Throttle response is crisp, so the chain hits speed fast for efficient bore cuts and felling hinges. Side-access chain tensioning keeps adjustments simple with gloves on. Tool‑free tank caps speed refuelling, and the smooth underside with longitudinal ribs helps reduce debris build‑up for easier cleaning.

Numbers that matter

• Displacement: 62.6 cm³
• Power: 3.90 kW
• Guide bar length: 45 cm (variant)
• Chain pitch: 3/8"; Groove width: 1.60 mm
• Weight (without fuel, bar, chain): 5.5 kg
• System weight (w/o fuel, with bar & chain): 6.83 / 6.67 kg
• Sound pressure/sound power: 107 / 116 dB(A)
• Vibration (L/R): 4.5 / 4.4 m/s²

Advice from gardenmachineshop.com

Keep the HD2 filter dry and knock out dust regularly—this maintains peak airflow and helps the M‑Tronic system keep your saw running at full pull.

Returns: as a consumer you can withdraw from your purchase within 14 days of receiving it, without giving a reason – this also applies to parts we order in specially for you. See our Refund & return policy for how to return an item and who pays the return shipping.

Please note: if a machine has been fuelled or used beyond what is needed to check it, we may deduct the resulting loss in value from your refund.