OMC Cobra 21:19 Upper Gear & Bearing Kit | Sierra 18-1602 Sierra 18-1602 Gear & Bearing Kit SIERRA Upper Gear Set 18-1602 OMC Cobra 21:19 Upper Gear & Bearing Kit Fits 4.3L V-6 Cobra Drives 21:19 ratio Replaces OMC 984012
OMC Cobra 21:19 Upper Gear & Bearing Kit | Sierra 18-1602 Sierra 18-1602 Gear & Bearing Kit SIERRA Upper Gear Set 18-1602 OMC Cobra 21:19 Upper Gear & Bearing Kit Fits 4.3L V-6 Cobra Drives 21:19 ratio Replaces OMC 984012