Sierra Exhaust Tube 18-2762, Replaces Mercury Marine 70981, 70981A3

The Sierra 18-2762 is a round, black exhaust tube built as a direct replacement for the original equipment exhaust tube used in Mercury Marine stern drive exhaust systems. It is engineered to Sierra's standard of meeting or exceeding the specifications of the original equipment part it replaces, so it holds up to the sustained heat, saltwater exposure, and vibration found in a marine exhaust path. The tube uses a bolt-on installation type, making it a straightforward swap when an original tube has cracked, corroded, or otherwise failed.

Each package includes one exhaust tube. The part is manufactured in Taiwan and is sold under the Sierra brand, part number 18-2762, which directly replaces the Mercury Marine 70981 and 70981A3 exhaust tubes.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2762
• Category: Mercruiser Water Shutter & Exhaust Tubes
• Color: Black
• Shape: Round
• Installation Type: Bolt-On
• Weight: 0.76 pounds
• Country of Origin: Taiwan
• Included Components: Exhaust Tube (1 per package)
• OEM Cross Reference: 70981, 70981A3

Fitment

Direct replacement for Mercury Marine exhaust tubes 70981 and 70981A3.

Replaces (OEM)

• 70981
• 70981A3

Frequently Asked Questions

What does the Sierra 18-2762 exhaust tube replace? The Sierra 18-2762 is a direct replacement for Mercury Marine exhaust tubes 70981 and 70981A3.

How many exhaust tubes come in the package? One exhaust tube is included per package of the Sierra 18-2762.

What color is the 18-2762 exhaust tube? It is black.

What shape is the Sierra 18-2762 exhaust tube? It has a round shape.

How is the 18-2762 exhaust tube installed? The Sierra 18-2762 uses a bolt-on installation type.

How much does the 18-2762 exhaust tube weigh? The Sierra 18-2762 exhaust tube weighs 0.76 pounds.

Where is the Sierra 18-2762 exhaust tube manufactured? The country of origin for the Sierra 18-2762 exhaust tube is Taiwan.

Is the Sierra 18-2762 a genuine Mercury Marine part or an aftermarket replacement? It is a Sierra-branded aftermarket exhaust tube engineered to meet or exceed the specifications of the original Mercury Marine 70981 and 70981A3 exhaust tubes it replaces.

Is the 18-2762 the same part as the Sierra 18-2761 or 18-2770 exhaust tubes? No, 18-2761 and 18-2770 are separate Sierra part numbers with their own OEM cross-references; the 18-2762 is a distinct exhaust tube that replaces Mercury Marine 70981 and 70981A3 specifically.

What category of Mercruiser part is the 18-2762? The Sierra 18-2762 is categorized under Mercruiser water shutter and exhaust tubes.

Will the 18-2762 exhaust tube hold up in a marine exhaust environment? Yes, Sierra designs the 18-2762 exhaust tube to meet or exceed the original equipment part's performance under the heat and saltwater exposure typical of marine exhaust systems.