SIMPERAC Carburetor Tune-Up Kit for Husqvarna 128 Series — 128LD Replacement with Filters, Gaskets & Tools

SIMPERAC's 128 LD carburetor and tune-up kit is a drop-in replacement designed to restore reliable starting and consistent throttle response to Husqvarna 128-series string trimmers and compatible models.

If your Husqvarna 128LD, 128L, 128CD or similar 28cc trimmer is hard to start, idles poorly, or stalls under load, a worn carburetor and depleted consumables are often the cause. This comprehensive kit includes a replacement carburetor compatible with common Zama part numbers (C1Q-W40A/C1Q-W38) plus the gaskets, filters, fuel lines, primer bulbs and tools needed to complete a quick service and get your machine back to normal performance.

Will this SIMPERAC carburetor fit my Husqvarna 128 trimmer?

This replacement is made for Husqvarna 128-series machines and many craftsperson models. It lists cross-reference numbers used by OEM and aftermarket manufacturers so you can verify compatibility before installing.

• Direct fit for Husqvarna models: 128LD, 128L, 128CD, 128C, 128LDX, 128R, 128RJ, 128DJX
• Cross-references include Husqvarna part numbers 545081848, 545081850 and others
• Compatible with Zama carburetor types C1Q-W40A and C1Q-W38
• Also works with select Craftsman trimmer models listed in the product details

What comes in the tune-up kit and why each part matters?

The kit bundles the carburetor with every small part typically replaced during a service, so you don’t need to hunt for individual pieces. Replacing fuel and air delivery components together helps eliminate leaks, blockages and vacuum issues that cause rough running.

• 1 complete replacement carburetor engineered to match original dimensions
• 2 gaskets and 2 air filters to ensure proper sealing and clean airflow
• 2 fuel lines, 2 fuel filters, 2 primer bulbs and 2 fuel line joints for fuel delivery reliability
• Carburetor adjustment tool, AC04122 fuel line kit, air filter cover and knob for installation and tuning

How difficult is installation and adjustment for a DIYer?

Installation is straightforward for anyone comfortable with small-engine maintenance; the kit supplies the common parts and a basic adjustment tool. Follow standard safety steps—work on a cool engine, disconnect the spark plug, and take photos to remember routing—then fine-tune the idle and mixture per the manufacturer's guidelines.

• Basic hand tools required: screwdrivers, pliers and socket set
• Includes adjustment tool to set idle and mixture screws accurately
• Simple part swaps: fuel line, primer bulb and air filter replacement in minutes
• Recommended: inspect fuel tank and spark plug while servicing carburetor

Who is this for? The SIMPERAC 128 LD carburetor tune-up kit is aimed at homeowners, landscapers and small-engine technicians who need a cost-effective service solution for Husqvarna 128-series trimmers or compatible string trimmers that are suffering from hard starts, poor idling or inconsistent throttle. It’s also useful for shops that want a ready-made kit to perform routine maintenance without sourcing multiple small parts.