Exhaust› Exhaust Pipes, Systems and Components

Cummins/Onan

EXHAUST KIT (ADPTR) DOWNTUBE EXTENSION

$47.42

SKU: C021 155-2850

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

Beginner — under 30 min

Description

The Cummins Onan exhaust tube is a 12-inch long, 1 1/8-inch outer diameter tube designed for use as a downtube extension. It can be cut to the desired length and combined with other tailpipes.

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

BrandCummins/Onan
Part NumberC021 155-2850

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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