Description

Sierra’s 18-1921 Manifold Elbow is designed for GM V8 Small Block engines (most models). Use with Sierra’s 18-1902 Manifold, 18-1903 Manifold, 18-8534 Exhaust Elbow Mounting Kit, 18-8553 Hardware Kit (Exhaust Elbow Bolts), and 18-0943-2 Exhaust Elbow Gasket. It is interchangeable with Mallory 9-40610, GLM 51320, Barr OMC-20-982680, Osco 9863, OMC Inboard 909863, and OMC Stern Drive 909863. Check manufacturer recommendations to ensure a proper fit before purchasing. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for GM V8 Small Block engines (most models)
Use with Sierra’s 18-1902 Manifold, 18-1903 Manifold, 18-8534 Exhaust Elbow Mounting Kit, 18-8553 Hardware Kit (Exhaust Elbow Bolts), and 18-0943-2 Exhaust Elbow Gasket
Interchangeable with Mallory 9-40610, GLM 51320, Barr OMC-20-982680, Osco 9863, OMC Inboard 909863, and OMC Stern Drive 909863
Check manufacturer recommendations to ensure a proper fit before purchasing
Each Sierra product meets or exceeds the original equipment part it replaces.