The Carburettor C1Q-S237C is a genuine Stihl fuel metering unit designed to restore clean running on Stihl MS170 and MS170C chainsaws. Built with a robust die‐cast aluminium body and precision internal components, it regulates the air-fuel mixture so the engine starts reliably, idles steadily, and accelerates cleanly under load. Supplied to Stihl specification under Manufacturer Part Number (MPN) 1130 120 0610, it is a direct replacement for a worn or contaminated carburettor and is made to handle typical cutting conditions. This unit connects to your existing throttle and choke linkages and interfaces with the saw’s purge system, helping to maintain fuel efficiency and reduce hesitation. Suitable for both trade and DIY users who need dependable performance from compact Stihl homeowner chainsaws.

Key Features:
– Genuine Stihl part for assured fit, function, and longevity
– Correct specification for MS170/MS170C for easy starting and stable idle
– Durable die‐cast aluminium construction resists wear and corrosion
– Precise metering helps restore power, throttle response, and fuel economy
– Direct bolt-on replacement using existing linkages and fuel lines-no modifications
– Factory-matched calibration range for dependable hot and cold running
– Supports routine servicing (filter screen and diaphragms accessible when overhauled)
– Helps prevent flooding, bogging, and hard starting caused by a failing carburettor

Typical Applications:
Replacing a faulty or contaminated carburettor on Stihl MS170/MS170C chainsaws used for pruning, firewood cutting, landscaping tasks, fencing, light felling, and site maintenance. Ideal when a saw exhibits poor starting, erratic idle, weak acceleration, or excessive fuel use after other routine checks (spark plug, air filter, fuel filter) have been carried out.

Also known as:
Carb, carburetor, carburettor assembly, diaphragm carb, fuel mixer, fuel metering unit, mixture controller, C1Q series carb, chainsaw carb body.

Fits Models:
MS170, MS170C

Alternate Part Numbers:
1130-120-0610, 11301200610

Product Specifications