Husqvarna 544251501 Chainsaw Chain Brake Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; 965167936,435,435E This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 544251501 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Husqvarna This chain brake (part number 544251501) is for chainsaws Let the engine cool and disconnect the spark plug wire before installing this part