Shop replacement repair parts for Walbro Small Engine model WT-458-1

Walbro primer bulb. The primer bulb draws additional fuel into the carburetor to make the engine easier to start. If the primer bulb is leaking, replace it.

Diaphragm assembly-metering

Walbro carburetor repair kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough. It is often possible to repair the carburetor if it is clogged.

Seat-check valve

Primer check valve

Lever-metering

Gasket-metering diaphragm

Spring-metering lever

Thumb drive-Service video. Complete Walbro diaphragm carburetor inspection & service video set.


Spring-compression

Spring-throttle return

Spring-choke friction

Screw-idle adjust kit

Screw assembly