172B, 172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, 172M, 172N, 172P, and 172R
models are approved when any of the following STC is incorporated:
SA4428SW
If requested, FAA Form 8130-3 must be added to cart. All other documents will be provided in digital format to your e-mail after check-out or provided with the shipped item.
Not compatible with propeller hubs stamped with "PY", Penn Yan Superhawk Conversion
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.
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