This is the category Engine - Caterpillar - C-Series - C16 - Cylinder Heads & Blocks - Valves & Injector Operating Mechanisms - Intake Valves. This image leads to a webpage with parts specific to those engines.
Intake Valves
 
This is the category Engine - Caterpillar - C-Series - C16 - Cylinder Heads & Blocks - Valves & Injector Operating Mechanisms - Exhaust Valves. This image leads to a webpage with parts specific to those engines.
Exhaust Valves
 
This is the category Engine - Caterpillar - C-Series - C16 - Cylinder Heads & Blocks - Valves & Injector Operating Mechanisms - Rocker Cover Isolators. This image leads to a webpage with parts specific to those engines.
Rocker Cover Isolators
 
This is the category Engine - Caterpillar - C-Series - C16 - Cylinder Heads & Blocks - Valves & Injector Operating Mechanisms - Intake & Exhaust Valve Springs. This image leads to a webpage with parts specific to those engines.
Intake & Exhaust Valve Springs
 
This is the category Engine - Caterpillar - C-Series - C16 - Cylinder Heads & Blocks - Valves & Injector Operating Mechanisms - Intake & Exhaust Valve Spring Seats. This image leads to a webpage with parts specific to those engines.
Intake & Exhaust Valve Spring Seats