Exhaust› Exhaust Pipes, Systems and Components

SIERRAMARINE

EXHAUST ELBOW MOUNTING KIT

$31.25

SKU: S08C 18-8504

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

Easy — 1–2 hours

Description

The Sierra 18-8504 is an exhaust elbow mounting kit designed for marine applications. It is intended for use with Pleasurecraft Ford Small Block V8 engines, specifically the 302 and 351 cubic inch models.

This kit includes the Sierra 18-0677-1 Elbow Gasket. It is also interchangeable with Mallory part number 9-40871 and Osco part number 29001-MK. The kit is designed to work with the Sierra 18-1899 Riser.

Fitment

Fitment Guaranteed

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on fit.

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

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C 18-8504

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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