part number: 61279 61279 LYCOMING STUD - DRILLED Thread: 1/4-20 Length: 1-13/32 inch Applicability: Lycoming O-235, O-290, O-235 and O-290 series engines, see Lycoming parts catalogs for exact engine models MSRP: Now: $37.18 Add to Cart part number: 61279 61279 LYCOMING STUD - DRILLED MSRP: Now: $37.18 Add to Cart