Dalom BR420 BR340 Carburetor Kit for Stihl BR340 BR380 BR400 BR420C Backpack Blowers

Overview

The Dalom BR420 BR340 Carburetor Kit is a comprehensive replacement set designed for Stihl backpack blowers. This kit combines a rebuilt carburetor with matching components to help your tool resume smooth operation and reliable fueling in the field. The result is a practical upgrade that supports steady starts, clean fuel flow, and consistent performance without overpromising results.

Compatibility at a Glance

Designed for a broad range of Stihl models, including BR420, BR340, BR380, BR400, SR320, SR340, SR380, SR400, SR420, BR320, BR340L, and BR420C. It also serves as a replacement for Walbro HD-4A, HD-4B, and HD-13B carburetors, helping you find a compatible, built-to-fit solution for common powerhead configurations.

• Fits Stihl BR420, BR340, BR380, BR400, SR320, SR340, SR380, SR400, SR420, BR320, BR340L, BR420C
• Replacement for Walbro HD-4A, HD-4B, HD-13B carburetors

What’s Included

• 1 carburetor
• 1 air filter
• 1 fuel filter
• 1 fuel tank grommet
• 1 fuel line
• 1 spark plug
• 3 gaskets

Key Specs and Fitment Details

• Mounting hole distance (center to center): 31 mm
• Throttle bore diameter: 19 mm
• Choke bore diameter: 19 mm
• Venturi diameter: 15 mm
• Fuel inlet line diameter: 4 mm
• Foam filter: 5-1/8" long × 3-1/2" wide × 1-1/2" tall

Important note: To avoid purchasing the wrong engine parts, double-check your model and part numbers before purchasing. Verifying compatibility helps streamline installation and reduces the need for exchanges.

Real-World Use and Benefits

In practice, this kit is designed to restore steady fuel delivery and responsiveness in demanding outdoor work. Expect smoother starts and consistent throttle response as you push through long jobs. The included filters and gaskets contribute to cleaner intake and sealed connections, supporting reliable operation in varying conditions.

Beyond immediate installation, the kit offers a practical upgrade path for maintenance routines. With all essential components bundled together, you can approach field service with the confidence that your Stihl backpack blower receives a balanced, shielded rebuild that aligns with listed model ranges.