Sierra's 18-2779 Exhaust Hose is designed for use with Volvo 4.3L GL, GS, GI, GXI, OSI; 5.0L FI, GL, FL, GXI, OSI; 5.7L GL, GI, GIL, OSI, GXI, OSXI; 5.8L FL, FI, FSI; 7.4L GL, GI; 8.1L GI, GXI, OSI; and 8.2L GL stern drives. It features a 4" I.D. Includes one exhaust hose per package. It is interchangeable with GLM 89224, Mallory 9-72802, Volvo Penta 3852696, and OMC Stern Drive 3852696 and 913405. Each Sierra product meets or exceeds the original equipment part it replaces. Fit specific, check part numbers to ensure proper fit.