Sierra 18-2762 Upper Exhaust Tube

• Upper exhaust boot
• 3 in. ID inlet
• 4 in. ID. outlet
• 4 3/4 in. long
• Replaces Mercury 70981; 70981A3
• Replaces Mallory 9-72808

Replaces Mercruiser part#70981A3. Bell shaped. For AQP5700 and OSCO8503A risers.