Service Instruction No. 1454 A 

Rocker Arm Assembly Replacement Part 

  • Publications

February 25, 2011 

MODELS AFFECTED

All Lycoming engines incorporating parallel valves except O­235 Series, O­290 Series, O­320­H Series and TO­360­E Series.

TIME OF COMPLIANCE

Anytime valve rocker assemblies are removed. 

This Service Instruction identifies Rocker Arm Assembly P/N  17F19357 to be  installed  on the  parallel  intake and exhaust valves on all cylinders. Rocker Arm Assembly P/N 17F19357 supersedes Rocker Arm  Assembly P/N 17F19353 

Product Support Network

Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry.

Get It Exchanged

Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.