Aft Propeller Spinner Bulkhead, FAA PMA Approved
Replacement Part Number:
0550321-12
0550321-11
0550321-10
Model Eligibility:
172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R, 172S, F172L, F172M, F172N, F172P
Any model with Air Plains Services STC SA4428SW.
Not compatible with propeller hubs stamped with "PY"
Cessna 172 Propeller Spinner Balance
A well balanced spinner will reduce cabin vibration and give you a more comfortable ride. Often the forward spinner bulkheads is damaged under stress because of an improper installation.
Installation Tips:
Here is a short 1 minute video to assist.