Sierra 18-2746 Marine Exhaust Boot 4" Lower Tube for MerCruiser V6 V8

The Sierra 18-2746 is a 4-inch rubber oval exhaust hose that links the exhaust elbow to the exhaust Y-pipe on MerCruiser marine engines. This lower tube exhaust boot fits MCM GM V-6 and V-8 engines, providing a critical seal in the exhaust system to help cool exhaust gases and reduce engine noise.

Key Features:

• Features a 4-inch lower tube with oval configuration
• Constructed from durable black rubber designed to withstand harsh marine environments
• Meets or exceeds the original equipment part it replaces
• Includes one boot per package
• Engineered to handle high horsepower and temperature demands

OEM Cross-References:

• MerCruiser Stern Drive: 32-14358, 32-14358001, 32-14358T
• GLM 89130, Mallory 9-72811

Sierra marine engine parts are manufactured to meet OEM specifications and are backed by a quality guarantee, making this exhaust boot a reliable replacement component for your MerCruiser stern drive engine.