FAA-PMA approved for Continental and Lycoming engines
These are the good ones!
Save money and get an enhanced product with McFarlane Stainless Steel Exhaust Nuts and Studs! A heat-treated, high-strength stainless alloy improvement, these studs are nitrocarburized Black Max™ coated for additional corrosion protection and resistance to galling.The studs are tap-end studs that come in various oversized options for use on Continental and Lycoming engines.
See all of our Exhaust Nuts and Studs here
OEM Part Number | McFarlane Part Number | Comment |
25C-11 | MC25C-11 |
Make | Series | Model | Beginning S/N | Ending S/N | Quantity Per Aircraft | Location | Eligibility Chart |
Lycoming | 540 | IO-540-AC1A5 | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 1618 |
Lycoming | 540 | TIO-540-AJ1A | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 1618 |
Lycoming | 540 | TIO-540-W2A | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 1618 |
McFarlane Aviation, Inc. PMA Supplement 164 |
Engine Studs & Nuts |