Caterpillar part numbers starting 4B3

4B3140	Cover (oil lines, engine)	Caterpillar
4B3388	Bolt (injector, controls, fuel)	Caterpillar
4B3612	Setscrew (injector, controls, fuel)	Caterpillar
4B3643	Setscrew (shutoff, manual)	Caterpillar

Not listed? Add it yourself.