ALL VALVE GUIDES ARE EACH
(UNLESS STATED)

Make	Engine	Model
Hino	W04D	FB111
		FB112
		FB114
		FC111
		FC112
		FC114
		FT112
	W06D	FD161
		FD163
		FD164
		FT165
	W06E	FD161
		FD163
		FD164
		FT165
Toyota	1W	Dyna WU26
		Dyna WU40
		Dyna WU50
		Dyna WU75
		Dyna WU90
		Dyna WU95

In most types of reciprocating engines, a valve guide is provided for each poppet valve in the cylinder head. Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat. A valve guide is a tube-shaped piece of metal, pressed into the cylinder head, with the valve reciprocating inside it. Guides serve also to conduct heat from the combustion process out from the exhaust valve and into the cylinder head where it may be taken up by the cooling system. Bronze is commonly used, as is steel; a balance between stiffness and wear on the valve is essential to achieve a useful service life.