Butom BG55 Carburetor for Stihl BG 55 BG85 BG 85 vs SIMPERAC C1M-K77 Carburetor for Echo PB-403T
Updated August 2026 — Butom BG55 Carburetor for Stihl BG 55 BG85 BG 85 leads on installation and quality.
The Butom BG55 offers better value and compatibility for Stihl users, while the SIMPERAC C1M-K77 is more comprehensive for Echo models.
Why Butom BG55 Carburetor for Stihl BG 55 BG85 BG 85 is better
Price
Butom BG55 is $4 cheaper than SIMPERAC C1M-K77.
Sales Rank
Butom BG55 has a better sales rank at 16,575.
Installation
Butom BG55 arrives factory-tuned for easy installation.
Why SIMPERAC C1M-K77 Carburetor for Echo PB-403T is better
Compatibility
SIMPERAC C1M-K77 is designed for Echo models.
Comprehensive Kit
Includes more components for maintenance.
Brand Options
SIMPERAC offers a wider range of Echo replacements.
Overall score
Specifications
| Spec | Butom BG55 Carburetor for Stihl BG 55 BG85 BG 85 | SIMPERAC C1M-K77 Carburetor for Echo PB-403T |
|---|---|---|
| Brand | Butom | SIMPERAC |
| Model Compatibility | Stihl BG 55/85 | Echo PB-403T/413H |
| Included Parts | Complete kit | Tune-up kit |
| Factory Tuned | Yes | No |
| Material Quality | Premium | Standard |
Dimension comparison
Overview of the Butom BG55 and SIMPERAC C1M-K77 Carburetors
The Butom BG55 Carburetor is priced at $14.99, making it about 21% cheaper than the SIMPERAC C1M-K77 Carburetor, which is priced at $18.99. Both carburetors are designed for specific models of leaf blowers, with the Butom catering to Stihl models and the SIMPERAC designed for Echo models. Understanding the features and specifications of each product can help you make an informed decision about which carburetor meets your needs best.
Compatibility with Leaf Blower Models
Compatibility is crucial when selecting a carburetor. The Butom BG55 Carburetor is specifically designed for Stihl models including the BG 55, BG 85, and SH 55, among others. It replaces part numbers like 42291200606 and Zama C1Q-S68G, ensuring a proper fit for these Stihl leaf blowers. On the other hand, the SIMPERAC C1M-K77 is compatible with Echo backpack blowers such as the PB-403T and PB-413H, replacing ZAMA C1M-K77 and several Echo part numbers. This specific compatibility means that users should select the carburetor that matches their leaf blower model to ensure optimal performance.
Price Comparison
When considering price, the Butom BG55 Carburetor at $14.99 is a more economical choice compared to the SIMPERAC C1M-K77 at $18.99. This represents a price difference of $4.00, which is about 21% less than the SIMPERAC option. For budget-conscious consumers or those looking to perform maintenance on their leaf blowers without overspending, the Butom carburetor offers a cost-effective solution while still providing the necessary compatibility and performance.
Features and Performance
Both carburetors come with a range of features designed to enhance performance. The Butom BG55 is equipped with premium-quality materials, including brass components and composite rubber diaphragms, which provide durability and reliability. It also arrives factory-tuned, ensuring that it is ready for immediate installation. In contrast, the SIMPERAC C1M-K77 includes a complete tune-up kit with essential parts such as a spark plug, air filter, and fuel line, making it a comprehensive choice for maintenance. Each carburetor undergoes testing to ensure proper functionality, yet the Butom model emphasizes its testing to emulate real-world engine performance.
Installation Ease
Installation is a key factor when selecting a carburetor. The Butom BG55 Carburetor is designed for easy installation, arriving factory-tuned for convenience. This means users can install it and start using their leaf blower without additional adjustments. Meanwhile, the SIMPERAC C1M-K77 also includes multiple components in its package, such as primer bulbs and gaskets, but the ease of installation may depend on the user's familiarity with these parts. For those who prefer a straightforward installation experience, the Butom may be the better option.
Package Contents
Examining what each product includes can clarify value. The Butom BG55 comes as a complete kit, featuring the carburetor itself, an air filter, fuel lines, a fuel filter, a spark plug, primer bulbs, and gaskets. This comprehensive kit ensures that users have everything they need for a complete maintenance job. The SIMPERAC C1M-K77 also offers a sufficient package, including a carburetor, primer bulbs, gaskets, fuel filters, fuel lines, an air filter, and a spark plug. While both packages are comprehensive, the Butom's inclusion of multiple gaskets and primer bulbs may appeal to users looking for added value.
Brand Reputation and Sales Rank
Brand reputation can influence buying decisions. The Butom BG55 has a sales rank of 16,575, indicating a relatively well-received product among consumers. In comparison, the SIMPERAC C1M-K77 has a higher sales rank at 39,321, suggesting it may not be as popular among buyers. While sales rank is not the only indicator of a product's quality, the Butom's stronger position might reflect greater customer satisfaction or brand trust within the leaf blower community.
Which should you buy?
Choosing between the Butom BG55 and SIMPERAC C1M-K77 ultimately depends on your specific needs and the leaf blower model you own. If you are looking for a more budget-friendly option with a strong sales rank, the Butom BG55, priced at $14.99, is an excellent choice, especially for Stihl users. Conversely, if you own an Echo model and prefer a more comprehensive tune-up package, the SIMPERAC C1M-K77 at $18.99 may be more suitable. Both carburetors offer solid performance and compatibility, ensuring that either choice will serve you well in maintaining your leaf blower.

