Exterior Components Body Panels and Components

SIERRAMARINE

GASKET DRY JOINT (CLOSED)

$80.09

SKU: S08C 18-0720

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sierra 18-0720 is a closed riser gasket designed for MerCruiser dry joint exhaust manifolds. This elbow gasket is specifically for use with dry joint systems in closed cooling applications.

It fits V6/V8 engines from 2002 and newer, including 4.3L, 5.0L, 5.7L, and 6.2L models that utilize the dry joint manifold and riser system. The gasket is interchangeable with MerCruiser part numbers 27-864549A02 and 27-864549A1.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSIERRAMARINE
Part NumberS08C 18-0720

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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