Replacement Carburetor for Stihl BR500 / BR550 / BR600 / BR700 — Part 4282 120 0603 What this part does Optimizes the fuel‑to‑air mixture so the engine burns fuel more efficiently, reducing fuel use and lowering emissions. Improves cold and hot starting and helps stabilize engine RPM for a smooth idle. Enhances throttle response and acceleration, restoring lost power and improving overall engine performance. Ensures consistent, smooth running by maintaining proper fuel and air balance. Key benefits (why you need it) Better reliability: restores dependable starting and stable idling when the original carburetor is worn or clogged. Improved efficiency: more complete combustion means less wasted fuel and fewer emissions. Restored performance: quicker throttle response and stronger acceleration for demanding tasks. Direct replacement: specifically made for the listed Stihl blower models and intended as a replacement carburetor. Compatibility and identification Compatible models: Stihl blower BR500, BR550, BR600, BR700. Part number: 4282 120 0603. Application categories: chainsaw parts / garden equipment / carburetor replacement for handheld blower engines. Practical applications / Use scenarios Home cleanup: Replace a failing carburetor on a BR550 to get reliable starts and consistent power for seasonal leaf and debris removal. Professional landscaping: Restore throttle response on a BR600 or BR700 used for extended commercial clearing to maintain productivity and reduce downtime. Maintenance service: Fit this replacement during routine equipment servicing to improve fuel economy and reduce emissions on older blowers. Notes for buyers Verify your blower model and part number before purchase to ensure compatibility. For best results, install as part of routine maintenance—check the air filter and fuel lines for clogs or damage during replacement. Function-focused replacement designed to restore the fuel‑air mixing, starting, and performance characteristics of your Stihl BR500/BR550/BR600/BR700 blower (part 4282 120 0603).