2012/10/30 Caterpillar

Caterpillar Products: Commercial Engines

3500B and 3500C

Engine News SEBD9816, October 2012, "A New Valve Lifter Assembly Is Used in 3500B Engines ". The original article was revised to add a statement on staking the roller pin. An additional canceled lifter assembly was also added.

Description of Change: The new valve lifter is assembled with a procedure that uses temperature control to produce an improved fit for the roller pin. In addition, a pin staking process has been implemented in order to enhance the robustness of the lifter.

Adaptable To:

Illustration 1	g03271256
416-8319 Valve Lifter As (1) Roller pin

The new part and the former parts are listed in Table 1.

Table 1

New Part	Former Part Canceled and Replaced	Former Part Canceled and Replaced
416-8319 Valve Lifter As	263-6674 Valve Lifter As	230-7875 Valve Lifter As

The new valve lifter assembly is adaptable to 3500B and 3500C Engines back to first production.

The new valve lifter assembly is effective with engines built beginning 03October 2012.