The conventional 2-1/4" Manifold gauge is lightweight with a slim design and uses a single diaphragm. The newer 3-1/8" and 2-1/4" gauges incorporate a dual diaphragm design which improves the longevity and reliability of the instrument. Standard markings are black and white.
2-1/4" UMA Mechanical (10-05564)
Case: Valox 420 Plastic
Weight: 7.8 oz.
2-1/4" UMA Mechanical (10-05565)
Case: Cast Aluminum
Weight: 4.7 oz.
Click here to download the 2-1/4" dual mounting diagram
Click here to download the 2-1/4" mounting diagram
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Part number 10-05565 is specifically for Rotax engines. Part number 10-11250 is for lycoming/continental engines.