New Diaphragm Used In Fuel Ratio Control
Usage:
3406 And 3408 Truck Engines
Description of Change: A new diaphragm is used in the fuel ratio control groups on the above engines. This new diaphragm is made of a gray silicone material that is stronger and will give better performance.
The former diaphragm was made of a synthetic rubber material. The service life of the former diaphragm was not acceptable.
Adaptable To: The new 1W4797 Diaphragm is a direct replacement for the former 2P8804 Diaphragm. The former diaphragm has been canceled. The new diaphragm is in effect with 3406 Truck Engine (92U48443) and 3408 Truck Engine (28V4506).
Caterpillar Information System:
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