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 |
31C-10 | MC31C-10P12 | |
31C-10P12 | MC31C-10P12 |
Make | Series | Model | Beginning S/N | Ending S/N | Quantity Per Aircraft | Location | Eligibility Chart |
Lycoming | 540 | IO-540-AG1A5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | IO-540-B1A5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | IO-540-B1C5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | IO-540-E1A5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | IO-540-E1B5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | IO-540-M1A5 | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | LTIO-540-F2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | LTIO-540-J2B | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | LTIO-540-J2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | LTIO-540-N2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | LTIO-540-R2AD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-A1A | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-A1B | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-A2A | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-A2B | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-A2C | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-F2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-J2B | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-J2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-N2BD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-R2AD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 540 | TIO-540-S1AD | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 541 | TIO-541-A1A | 0 | ZZZZZZZZZZZZZZZ | 18 | ENGINE | 7601 |
Lycoming | 720 | IO-720-B1B | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 7601 |
Lycoming | 720 | IO-720-B1BD | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 7601 |
Lycoming | 720 | IO-720-C1B | 0 | ZZZZZZZZZZZZZZZ | 24 | ENGINE | 7601 |