O.S. Engines Piston Ring

This a replacement O.S. Engines Piston Ring, and is intended for use with the O.S. 91HZ F3C, and 91HZ-PS Helicopter Engines.

This Part Is Used In The Following O.S. Engines
 91FX  91RZ-H  91RZ-H DH
 91SZ-H PH

NOTE: This part may be compatible with other O.S. engines. Please check your owner's manual and cross reference the part number to verify that this is the correct part for your engine.

This product will be in stock on Thursday, October 29 2015.

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ETA: Oct 29, 2015
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