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Air and Fuel› Air Cleaners, Filters, Intakes and Components

Arlen Ness

Smooth Stage 1 Big Sucker Air Cleaner

$399.95 $215.95 Save $184.00

SKU: 18-306

In Stock
In Stock
Ships by Jul 30
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Arlen Ness Smooth Stage 1 Big Sucker is a performance air cleaner assembly designed for Milwaukee-Eight® (M8) engines. It features a patent-pending hidden breather system that routes through the backing plate and exits into the throttle body via proprietary shooter tubes. This system helps eliminate oil blow-by issues common with M8 engines and includes a patent-pending oil catch to prevent excess oil from reaching the filter.

Fitment

Fitment Guaranteed

Don’t gamble
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

BrandArlen Ness
Part Number18-306
CategoryAir and Fuel

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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