Guide for Stihl Machine Labelling System

Stihl offers a broad range of machines across various industries. Each machine may have multiple variations, making it essential to locate the correct model number to find the right parts.

The simplest way to identify a spare part is by using the serial number. However, if the number is worn or missing, understanding the model variations and the letters in the model name can assist in identifying parts for your machine.

For instance, the BG 56 and BG 56C-E leaf blowers differ significantly in the recoil area due to the ErgoStart system, but are largely similar elsewhere. Without consulting the parts diagram, you can deduce that the BG 56 and BG 56-Z will have different exhausts, as 'Z' indicates the presence of a spark arrest muffler.

Below is an expanded key to the Stihl model numbering conventions.

Quick Guide for Stihl Machine Labelling System

C-B = Quick Chain Tensioner

C-E = ErgoStart/Easy2Start

C-F = Electric Starter

C-M = Stihl M-Tronic

C-Q = Quick Stop Super / Quickstop Plus / Electrodynamic Coasting Brake

i = STIHL Injection

K = Short Shaft (HL)

R = Loop Handle (FS), Cutting Blade (HS)

T = Top Handle (MS), Split Drive Tube (FS, FR), Trimming Blade (HS)

X = Lightweight Versions

-A = Electronic Water Control

-D = Catalytic Converter

-K = Long Shaft (FS)

-N = Low Compression (MS), Low Noise (FS)

-R = Wrap-Around Handle (MS)

-V = Carburettor Heating

-W = Handle Heating

-Z = Spark Arrester Muffler

Breakdown for Stihl Machine Labelling System

C-B

Machines ending in 'C-B' feature a quick chain tensioner, allowing for easier and faster chain adjustments.

C-E

'C-E' at the end of a model indicates it has the ErgoStart/Easy2Start system. This provides a smoother recoil pull and enhances reliability during starting. The design optimises the effort applied to the recoil cord, making it easier to start without excessive motion. This system is now common across various machine types.

C-F

This model includes an electric starter, allowing it to be started by pressing a button on the machine.

C-M

This machine features an engine management system that electronically controls ignition timing and fuel metering under different conditions, considering fuel quality and altitude.

C-Q

This model has a QuickStop Super brake chain brake, which activates as the hand leaves the rear handle. The brake band tightens around the clutch drum quickly, stopping the machine within a second.

i

This machine uses a fuel delivery system that directs fuel straight to the cylinder from an electronically controlled injector. The injector receives data from sensors about temperature and pressure, maintaining constant fuel pressure for improved power output.

K

For models starting with HL, “K” signifies a shorter shaft, enhancing operator handling.

R

'R' at the end of FS models indicates a looped handle, facilitating work in tighter spaces, such as thinning between bushes.

R

'R' after HS model numbers indicates that the hedgetrimmer features a cutting blade designed for high-volume cutting, with wider spacing and increased height between teeth.

T

Chainsaws with model numbers starting with 'MS' and ending in 'T' have a top handle grip for better control. 'T' at the end of FS or FR Brushcutters indicates a split drive tube. For HS machines, 'T' signifies smaller tooth spacing and lower tooth height, improving control for shaping tasks.

X

This model is a lightweight version, making it easier to carry, hold, and control.

-A

'-A' denotes an electronic water control system, allowing precise adjustment of the water supply with '+' and '-' buttons for improved dust suppression.

-D

'-D' indicates the presence of a catalytic converter, which reduces pollutants through afterburning.

-K

'-K' on FS machines signifies that the brushcutters have a longer-than-normal shaft.

-N

'-N' on MS models indicates low compression, while on FS models, it signifies low noise.