WALBRO

Carburettor diaphragm kits, gasket kits, primer caps and primer bulbs suitable for Walbro carburettors fitted to chainsaws, trimmers, brushcutters and small engines from brands including Stihl, Echo, Husqvarna, McCulloch, Ryobi, Dolmar and Homelite. These are aftermarket parts engineered to suit Walbro carburettor models such as HDB, HDA, WA, WT and WYJ, rather than genuine Walbro components.

A diaphragm and gasket kit suits a carburettor that's hard starting or running rough due to a worn diaphragm, while a primer cap or bulb replaces a cracked or leaking primer on the fuel system. Match the kit to your carburettor model number or your saw/trimmer model before ordering.

Frequently asked questions

Are these genuine Walbro parts?

No, these are aftermarket parts designed to suit Walbro carburettor models, not genuine Walbro components.

When do I need a diaphragm kit versus a primer cap?

A diaphragm and gasket kit is for a carburettor that's hard to start or runs poorly due to a worn internal diaphragm. A primer cap or bulb is a separate fuel system part that replaces a cracked or leaking primer.

How do I pick the right kit for my carburettor?

Match the kit to the carburettor model number stamped on the unit, such as HDA, HDB, WA or WT, or check which engine or saw model it's listed against.