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 |
31-12 | MC31-12P12 | |
31-12P12 | MC31-12P12 |
Make | Series | Model | Beginning S/N | Ending S/N | Quantity Per Aircraft | Location | Eligibility Chart |
Lycoming | 435 | TVO-435-A1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | TVO-435-B1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | VO-435-A1B | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | VO-435-A1C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | VO-435-A1D | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | VO-435-A1E | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 435 | VO-435-A1F | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-B | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-B1A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-B1B | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-B1C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-B1D | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-D1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-F1A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-F2A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-F4A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GO-480-F6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-A1A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-A2A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B1A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B1B6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B1C6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B1E6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B1J6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | GSO-480-B2D6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | IGSO-480-A1A6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | IGSO-480-A1B6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | IGSO-480-A1C6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | IGSO-480-A1E6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 480 | IGSO-480-A1F6 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGO-540-A1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGO-540-A1C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGSO-540-A1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGSO-540-A1C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGSO-540-A1D | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGSO-540-A1E | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | IGSO-540-A1H | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | TIVO-540-A2A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | TIVO-540-A2A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-A2A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B1B3 | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B1C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B1D | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B2A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B2C | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-B2D | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-C1A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-C1B | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-C2A | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
Lycoming | 540 | VO-540-C2B | 0 | ZZZZZZZZZZZZZZZ | 12 | ENGINE | 7601 |
McFarlane Aviation, Inc. PMA Supplement 169 |
ELIGIBILITY DRAWING: Engine Studs & Nuts |