Stihl MM56 C-E Yard Boss Gas Multi-Engine

The STIHL MM 56 YARD BOSS® Engine is a versatile, high‑performance powerhead designed to drive the full lineup of STIHL Yard BOSS® attachments. Built with a fuel‑efficient 2‑stroke engine, the MM 56 delivers strong torque, smooth operation, and reliable performance for year‑round property maintenance. Its compact frame, foldable handle, and quick‑release attachment system make it ideal for homeowners and professionals who want a single engine capable of cultivating, edging, sweeping, dethatching, and more. Durable, easy to start, and simple to transport, the MM 56 is the core of STIHL’s multi‑task yard‑care platform.

Key Features

• Powerful 2‑stroke engine with excellent torque for demanding yard tasks
• Compatible with all STIHL Yard BOSS® attachments
• Easy‑start system for smooth, reliable ignition
• Foldable handle for compact storage and transport
• Quick‑release coupler for fast attachment changes
• Lightweight, maneuverable design ideal for multi‑task yard care
• Low‑vibration operation for improved comfort
• Durable gearbox and drive system built for long service life

Basic Specs

• Model: MM 56
• Engine Type: 2‑stroke
• Displacement: ~27.2 cc
• Fuel Capacity: ~0.34 L
• Handle Type: Foldable multi‑tool handle
• Attachment Interface: Yard BOSS® quick‑release
• Weight (powerhead only): ~8.2 kg
• Use Case: Cultivating, edging, sweeping, dethatching, aerating, and more (attachment‑dependent)

What’s Included

• STIHL MM 56 YARD BOSS® Engine (powerhead only)
• Foldable handle assembly
• Quick‑release attachment coupler
• User documentation (Attachments sold separately)

Usage & Tips

• Best for: garden cultivation, lawn edging, soil prep, sweeping, dethatching, and multi‑task yard maintenance
• Tip: pair with the cultivator, edger, or bristle brush attachments for maximum versatility
• Maintenance: clean the coupler regularly; use fresh premix fuel for optimal engine life