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HelicopterEngines Plugs Mufflers Fuel › Piston and ring compatibility
10-25-2011 10:07 AM  6 years agoPost 1
l0n3i200n

rrApprentice

South Africa

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Does anyone know if the OS55 piston and ring will fit a OS 50 Hyper?

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10-25-2011 01:41 PM  6 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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I doubt it but OS is pretty practical when it comes to part numbers so if its the same part it will be the same part number. Hit OSEngines.com and download the hyper manual and check the part number against your manual.

Andy
AMA 77227
http://www.jaxrc.com

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10-25-2011 02:37 PM  6 years agoPost 3
l0n3i200n

rrApprentice

South Africa

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Ok so OS replied very quickly when I posted the question to them

Thank you for your recent email.

Unfortunately, those parts are different and not compatible with each other.

Sincerely,
Chris S.
Product Support Technician
PS9015

>>> l0n3i200n <l0n3i200n@yahoo.com> 10/25/2011 8:11 AM >>>
Hi

Please can you advice if the O.S. 55HZ-H Hyper ring and piston will fit a O.S. 50SX-H Ringed Hyper

Parts Listing for the
O.S. 50SX-H Ringed Hyper
OSMG7790 25303400 O.S. Piston Ring 46SF/H
OSMG7515 25203200 O.S. Piston 50SX-H

Your part numbers is very close
OSMG7798 27703400 O.S. Piston Ring 55HZ
OSMG7538 25803200 O.S. Piston 55HZ Hyper

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