Product Overview
This Pro Chaser carburetor is designed as a replacement part for various Ariens snow thrower models, including ST11528LE, 924125, 932035, 924325, 11528, 932039, and 924124, specifically for 24" and 28" snow throwers. It is a critical component for the proper fuel delivery and operation of your snow thrower engine.
It is important to verify compatibility by comparing the provided images and specifications with your existing carburetor. Minor design differences can affect fitment. If unsure, consult with a qualified technician or the seller.
Package Contents
The package includes the following components:
- 1 x Carburetor
- 1 x Gaskets (for installation)
- 1 x Fuel Filter
- 1 x Primer Bulb
- 1 x Shut Off Valve
- 2 x Fuel Hoses

Image: Contents of the Pro Chaser carburetor replacement kit.
Setup and Installation
Installation of a carburetor requires mechanical aptitude and adherence to safety procedures. If you are not comfortable performing this installation, it is recommended to seek assistance from a certified service technician.
- Safety First: Ensure the snow thrower engine is cool, spark plug wire is disconnected, and fuel tank is empty or fuel line is clamped to prevent spills.
- Remove Old Carburetor: Carefully disconnect fuel lines, throttle linkage, and choke linkage from the old carburetor. Remove mounting bolts and the old carburetor along with its gaskets. Note the orientation of all components for reassembly.
- Inspect and Clean: Inspect the engine's intake manifold for any debris or damage. Clean the mounting surface thoroughly to ensure a proper seal with the new gaskets.
- Install New Carburetor: Place the new gaskets in their correct positions. Mount the new Pro Chaser carburetor, ensuring all linkages (throttle, choke) are correctly attached and move freely. Secure the mounting bolts, tightening them evenly to prevent air leaks.
- Connect Fuel System: Install the new fuel filter and shut-off valve if replacing. Connect the new fuel hoses to the carburetor, fuel filter, and fuel tank. Ensure all connections are secure and free of leaks. Connect the primer bulb if applicable.
- Final Checks: Reconnect the spark plug wire. Add fresh fuel to the tank. Check for any fuel leaks. Prime the carburetor as per your snow thrower's instructions.



Images: Detailed views of the carburetor with key dimensions and linkage for compatibility verification and installation reference.
Operating Considerations
Once the new carburetor is installed, proper engine operation depends on several factors:
- Fuel Quality: Always use fresh, clean fuel. Stale or contaminated fuel is a common cause of carburetor issues. Consider using a fuel stabilizer, especially during off-season storage.
- Choke and Throttle: Ensure the choke and throttle linkages operate smoothly and are correctly adjusted. The choke enriches the fuel mixture for cold starts, while the throttle controls engine speed.
- Engine Starting: Follow your snow thrower's specific starting procedure. This typically involves priming the carburetor (if equipped), setting the choke, and pulling the starter cord or engaging the electric start.
- Engine Performance: A properly functioning carburetor will allow the engine to start easily, idle smoothly, and accelerate without hesitation.
Maintenance
Regular maintenance helps prolong the life of your carburetor and ensures reliable snow thrower operation:
- Fuel System Cleanliness: The most critical aspect of carburetor maintenance is keeping the fuel system clean. Use the included fuel filter and replace it periodically.
- Fuel Storage: Do not leave fuel in the snow thrower's tank for extended periods (e.g., over summer). Drain the fuel or run the engine until it runs out of fuel before long-term storage. This prevents fuel degradation and gumming up the carburetor.
- Carburetor Cleaning: If the engine experiences rough idling, stalling, or difficulty starting, the carburetor may need cleaning. This often involves disassembling the carburetor, cleaning jets and passages with carburetor cleaner, and replacing gaskets. This is an advanced task and may require professional assistance.
- Air Filter: Ensure the engine's air filter is clean and unobstructed. A dirty air filter can affect the air-fuel mixture and carburetor performance.
Troubleshooting
If you encounter issues after installing the new carburetor, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine won't start or starts hard | No fuel, stale fuel, clogged fuel filter, incorrect choke setting, air leak at carburetor gasket. | Check fuel level and freshness. Replace fuel filter. Adjust choke. Inspect and tighten carburetor mounting bolts and gaskets. |
| Engine runs rough or stalls | Dirty carburetor jets, improper fuel mixture, air filter clogged, fuel quality issues. | Clean or replace carburetor. Ensure fresh fuel. Clean or replace air filter. |
| Fuel leaks from carburetor | Loose fuel lines, damaged float bowl gasket, stuck float needle. | Tighten fuel line clamps. Inspect and replace gaskets. Clean float needle and seat. |
For persistent issues, it is advisable to consult a professional small engine mechanic.
Specifications
| Brand | Pro Chaser |
| Model Number | PC145169 |
| Manufacturer Part Number | PC145169 |
| Compatible Ariens Models | ST11528LE, 924125, 932035, 924325, 11528, 932039, 924124 (24" & 28" Snow Throwers) |
| Exterior Finish | Machined |
| UPC | 780854800673 |
| First Available | September 3, 2019 |
Warranty Information
Specific warranty details for this Pro Chaser carburetor are not provided in this manual. Please refer to the product packaging or contact the seller directly for information regarding warranty coverage, terms, and conditions.
Customer Support
For technical assistance, compatibility questions, or any issues not covered in this manual, please contact the seller or manufacturer, Pro Chaser, through the platform where the product was purchased. Providing your product model number (PC145169) and details of your snow thrower (e.g., Ariens model number) will help expedite support.