Description
xpartszen MS391 carburetor kit is a complete aftermarket replacement designed to restore fuel delivery and idle stability for Stihl MS311, MS311Z and MS391 chainsaws compatible with Walbro WTE-9A and WTE-17 models.
If your Stihl chainsaw is running rough, hard to start, or losing power, a worn or damaged carburetor is often the cause. This partszen kit supplies a direct-fit carburetor (part numbers 1140 120 0601 for WTE-9A and 1140 120 0605 for WTE-17) plus a full complement of consumables and small parts so you can replace the unit and refresh related components in a single service. The kit comes with filters, hoses, gaskets and hardware to help ensure a proper seal and reliable fuel flow after installation.
How does the partszen MS391 carburetor restore performance?
Replacing an aging carburetor eliminates clogged jets, worn diaphragms and air leaks that disrupt the fuel/air mixture. The new unit helps reestablish consistent idling, smoother acceleration and better throttle response when installed and tuned correctly.
- Direct-fit Walbro WTE-9A or WTE-17 compatible replacement carburetor
- New diaphragms and gaskets reduce vacuum leaks and inconsistent fueling
- Included spark plug and filters simplify a wider tune-up at once
What comes in the partszen replacement kit and why each item matters?
The kit bundles the carburetor with several maintenance parts so you don’t need to source separate components. These extras help complete the repair correctly and reduce the risk of future problems from neglected small parts.
- Carburetor (1140 120 0601 or 1140 120 0605) for direct compatibility
- Paper pads, oil pipe, oil cap, trigger spring and nuts for refit and sealing
- Guide screws, oil bubble, oil filters, spark plug and air filter for a full tune-up
Is this partszen carburetor easy to install and tune?
Installation requires basic mechanical skills and standard small-engine tools. The unit mounts in place of the original, but you should follow model-specific service guidance for safe removal and fine-tuning of the carburetor screws to achieve optimal idle and mixture settings.
- Designed as a bolt-in replacement for the listed Stihl models
- Replace fuel lines and filters included in the kit during installation
- Adjust high/low/idle screws per Stihl tuning specs after fitting
Who is this for: This partszen MS391 carburetor kit is for DIY mechanics, landscapers and professional saw users who own a Stihl MS311, MS311Z or MS391 and need a complete replacement carburetor plus related consumables. It’s suitable for anyone comfortable with small-engine maintenance and routine carburetor tuning who wants a single kit to refresh fuel delivery components and get the chainsaw back to reliable operation.
FAQ
Q: Which Stihl models does this carburetor fit?
A: It fits Stihl MS311, MS311Z and MS391 models compatible with Walbro WTE-9A or WTE-17 carburetors.
Q: Does the kit include the air filter and spark plug?
A: Yes — the package contains an air filter, spark plug, oil filter, oil pipe and multiple small installation parts.
Delivery & Returns
xFree UK delivery on every order — packed within 1 business day, arriving in 2–4 business days.
Free 30-day returns — email us for a prepaid label; refunds land within 3–5 business days of the return arriving.
Why GardenLuxe
x- ✓ Proven best-sellers only — products UK gardens buy again and again
- ✓ Free UK delivery on every order
- ✓ Free 30-day returns with prepaid label
- ✓ Genuine products from reputable suppliers
- ✓ Human support — gardenluxe.co.uk@gmail.com
Care & Good To Know
x- Rugs & mats: hose down or machine wash per label; air-dry fully before storing.
- Shade cloth: use every grommet, tension with bungee ties, take down for winter storms.
- Fertilisers & plant food: always follow label dose rates; store sealed, dry and away from children and pets.
- Power tool parts: check bar length and pitch/gauge match your saw before fitting.
- Choosing a selection results in a full page refresh.
