150BT 350BT Carburetor for Husqvarna 570BTS 580BTS vs SIMPERAC C1M-K77 Carburetor for Echo PB-403T
Updated August 2026 — 150BT 350BT Carburetor for Husqvarna 570BTS 580BTS leads on customer reviews and compatibility.
The Pro Chaser carburetor offers better brand reputation and a more comprehensive package, making it the preferred choice for Husqvarna users.
Why 150BT 350BT Carburetor for Husqvarna 570BTS 580BTS is better
Brand Reputation
Pro Chaser has a stronger market presence.
Package Contents
Includes more essential components for installation.
Sales Rank
Lower sales rank indicates higher popularity.
Why SIMPERAC C1M-K77 Carburetor for Echo PB-403T is better
Price
SIMPERAC is slightly cheaper.
Additional Parts
Includes a spark plug in the package.
Average Price
Lower average price over the last 90 days.
Overall score
Specifications
| Spec | 150BT 350BT Carburetor for Husqvarna 570BTS 580BTS | SIMPERAC C1M-K77 Carburetor for Echo PB-403T |
|---|---|---|
| Model Compatibility | Husqvarna | Echo |
| Included Parts | Comprehensive | Standard |
| Performance | High | Moderate |
| Installation Ease | Easy | Moderate |
| Brand Recognition | High | Moderate |
Dimension comparison
Overview of the Products
The 150BT 350BT Carburetor for Husqvarna and the SIMPERAC C1M-K77 Carburetor for Echo are both viable options for replacing carburetors in backpack blowers. The 150BT 350BT is priced at $19.98, while the SIMPERAC C1M-K77 is slightly cheaper at $18.99. This makes the SIMPERAC about 5% less expensive than the Pro Chaser product. Both carburetors are designed for specific models, catering to different brands—Husqvarna and Echo, respectively.
Brand Reputation
Brand reputation plays a crucial role in the decision-making process for consumers. The 150BT 350BT Carburetor is created by Pro Chaser, a brand that is recognized for its quality replacement parts. In contrast, the SIMPERAC C1M-K77 is from SIMPERAC, which, while also reputable, may not have the same level of brand recognition as Pro Chaser. The difference in popularity is reflected in their sales rank; the Pro Chaser carburetor holds a sales rank of 23,671, which indicates a stronger market presence compared to the SIMPERAC, which has a sales rank of 39,321.
Compatibility with Models
When it comes to compatibility, each carburetor is specifically designed for certain models of backpack blowers. The 150BT 350BT is compatible with several Husqvarna models including the 570BTS, 580BTS, and 560BFS. On the other hand, the SIMPERAC C1M-K77 fits Echo models like the PB-403T, PB-413H, and PB-413HT. This specificity can be crucial for users looking for a direct replacement. If you own models from both brands, the choice will depend on which blower you need to service.
Package Contents
Looking at what each product includes can significantly impact their value proposition. The 150BT 350BT comes with a comprehensive package that includes a carburetor, gasket, fuel and air filters, primer bulbs, grommets, and fitted fuel lines. This makes for a complete set for immediate installation. The SIMPERAC C1M-K77 also provides a similar package but includes a spark plug along with its components, making it slightly more versatile. Both packages offer essential parts, but the addition of the spark plug in the SIMPERAC package may be a deciding factor for some users.
Price Comparison
Price is often a determining factor when purchasing replacement parts. The 150BT 350BT is available for $19.98, while the SIMPERAC C1M-K77 is priced at $18.99. This price difference of 99 cents may seem minor, but it can add up, especially for consumers purchasing multiple units. The SIMPERAC also reflects a lower average price over the last 90 days at $17.11, which could indicate a trend towards more competitive pricing.
Performance and Quality
Both carburetors are designed to meet the performance needs of their respective blower models. The 150BT 350BT is built to replace OEM parts such as 581155801 and 502845001, ensuring a high level of performance and reliability for Husqvarna users. Similarly, the SIMPERAC C1M-K77 replaces a range of ZAMA parts and is designed to restore the functionality of Echo blowers. While both products aim for high performance, users should consider their specific needs and the history of performance for their respective brands.
Customer Support and Service
Customer service and support can greatly enhance the purchasing experience. Pro Chaser offers assistance for customers who may need help verifying compatibility with their current carburetor, which could be beneficial for those unsure about their choice. SIMPERAC also provides similar support but lacks specific mentions of customer service in the available data. Support can be a deciding factor for customers who appreciate having access to assistance during their purchase process.
Which should you buy?
In conclusion, the choice between the 150BT 350BT Carburetor for Husqvarna and the SIMPERAC C1M-K77 Carburetor for Echo hinges on a few key factors. If you are a user of Husqvarna products, the 150BT is a strong choice with its solid brand reputation and comprehensive package. Conversely, if you need a carburetor for Echo models, the SIMPERAC C1M-K77 offers a slightly lower price and an additional spark plug, which adds value. Ultimately, your decision should be guided by the compatibility with your specific blower model and the importance of customer support during your purchasing experience.

