Check the size and pictures before ordering. Style: Husqvarna 51 55 503281504 # Walbro WT-170-1 Carburetor. Made of high quality metal, wear-resistant and durable. Easy to install and replace, the old ones can be replaced directly. Replace the carburetor to perfectly match the original mower and keep your equipment running at top performance. New high quality carburetor replacement parts. Reliable replacement parts for high reliability carburetors. Note: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.