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Old 09-27-2021, 10:50 AM
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Piper J3 Piper J3 is offline
 
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Location: Hinckley, Ohio
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So, I’m trying to find exact Sparkplug Cap for 912ULS. It appears that Rotax uses NGK brand but assigns an internal PN.

From what I see the cap is 120 degree angle rubber boot. What I don’t know is how it attaches to the sparkplug. Option is for plug with bare threads or for the screw-on terminal.

VDO5FMH - 120 Degree Long Elbow Type, 10mm and 12mm Adaptable Plug Thread Size, 5 ohm Resistance, For Terminal Stud, Rubber Sheathed, Compact Type

Or

VD05EMH - 120 Degree Long Elbow Type, 10mm and 12mm Adaptable Plug Thread Size, 5 ohm Resistance, For Terminal Nut or Integrated Terminal, Rubber Sheathed, Compact Type

Can someone take a quick look at their engine and tell me if

• 120 Degree Elbow is correct
• What type of connection to top of sparkplug

Thanks in advance…
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