Description
Product Overview
The Thomletha carburetor float is engineered as a stemless, high‑precision component for 350 series engines such as YFM350, YFM400, and related models. Constructed from durable, corrosion‑resistant alloy, the float maintains consistent fuel level within the carburetor chamber, ensuring optimal air‑fuel mixture across all operating conditions. Dimensions measure 3.54 x 2.44 x 1.02 inches and the unit weighs just 1.06 ounces, allowing it to fit seamlessly into tight engine bays. With a voltage rating of 414 V, it meets OEM specifications and carries the manufacturer part number MO‑1300582‑850122‑AT.
Usage
Designed for small engines found in utility vehicles, snowmobiles, and compact tractors, this float excels in environments where reliable fuel delivery is critical. Whether you are performing routine maintenance on a 2004 Kodiak or restoring a classic Bear model, the stemless design simplifies removal and replacement, reducing downtime. Ideal for mechanics, hobbyists, and fleet operators who need a dependable part that restores engine performance without extensive re‑machining.

Why Choose Us
Thomletha combines decades of engineering expertise with stringent quality control, delivering a float that matches or exceeds original equipment standards. Each unit undergoes precision casting, CNC machining, and thorough testing to guarantee leak‑free operation and exact buoyancy. Our parts are backed by a comprehensive warranty and supported by a knowledgeable technical team ready to assist with installation guidance.
Key Features
- Stemless design for quick, tool‑free installation and removal.
- Corrosion‑resistant alloy construction ensures long‑term durability.
- Precise fuel level control for smoother engine idle and acceleration.
- Exact OEM fit for 350 series models, eliminating the need for modifications.
- Lightweight (1.06 oz) reduces overall engine weight while maintaining strength.
FAQ
Is this float compatible with my 2002 YFM350 engine?
Yes, the Thomletha float is a direct replacement for YFM350, YFM350ER, and other 350 series engines produced between 1988 and 2004.
Do I need any special tools to install the stemless float?
No special tools are required. The stemless design allows you to slide the float into place and secure it with the existing carburetor mounting hardware.
What warranty does Thomletha provide for this part?
Thomletha offers a one‑year limited warranty covering defects in material and workmanship, ensuring peace of mind for your purchase.
Can this float be used in high‑altitude applications?
The float is calibrated for standard atmospheric conditions; for high‑altitude use, consider adjusting the carburetor jetting to maintain optimal performance.
How does the stemless design improve performance?
By eliminating the stem, the float reduces internal friction and potential leak points, delivering more consistent fuel metering and smoother engine operation.




Reviews
There are no reviews yet.