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 |
657985-1.38 | MC657985-1.38 |
McFarlane Aviation, Inc. PMA Supplement 164 |
Engine Studs & Nuts |