Suitable for srm2601 srm2400 pe2601 trimmer WALBRO wyj-192-1 carburetorCarburetor replaces your old OEM. To replace an existing carburetor, simply replace and ride again. Give your machine the new power and torque you really deserve, and enjoy more fun with new power at your fingertips. brand new. 1 carburetor. Easy to install, the manual is not inlcuded, However, You may search some manual on tube. The only thing they need to change is one of the gasket that is included needs to be the one between carb and air filter housing. After installation, It instantly fires up, Your Powerful mowers & Equipment deserve A Perfect Carburetor