18-394 Ness, M8 Stage I ''Big Sucker'' air cleaner kit. Carbon
Fits: 18-24Softail; 17-25 FLT/Touring (ex…
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Specifications
- Brand
- Arlen Ness
- Part Number
- 18-394
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Air Intake
- VAT Rate
- 20%
About This Product
If you are looking to move past the stock setup on your Milwaukee-Eight, the Arlen Ness Stage I Big Sucker is a classic choice for a reason. This kit features a smooth carbon black outer cover and a high-flow cotton gauze filter pre-oiled with black oil. The real magic is in the patent-pending hidden breather system, which uses O-rings at the heads and proprietary shooter tubes to eliminate the messy oil blow-by issues common on M8 engines. It is a complete bolt-on performance boost for 2018 to 2024 Softail models, 2017 to 2025 Touring models, and 2017 to 2025 Trikes equipped with the OEM or Screamin' Eagle oval Ventilator backing plate. Note that it excludes certain 2024 and 2025 Street Glide and Road Glide variants.
Manufacturer part number: 18-394.
Fitment
42 models18-24Softail; 17-25 FLT/Touring (excl. 24-25 FLHX; 2025 FLHXU; 24-25 FLTRX; 23-25 FLHXSE; 23-25 FLTRXSE; 24-25 FLTRXSTSE); 17-25 Trikes. With OEM H-D / Screamin'' Eagle oval Ventilator backing plate
Softail 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2018 | Breakout 114 Anniversary FXBRS |
| Harley-Davidson | 2018–2022 | Breakout 114 FXBRS |
| Harley-Davidson | 2023–2024 | Breakout FXBR |
| Harley-Davidson | 2018–2020 | Deluxe FLDE |
| Harley-Davidson | 2018–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2020 | Fat Bob FXFB |
| Harley-Davidson | 2018 | Fat Boy 114 Anniversary FLFBS |
| Harley-Davidson | 2018–2024 | Fat Boy 114 FLFBS |
| Harley-Davidson | 2018–2020 | Fat Boy FLFB |
| Harley-Davidson | 2018 | Heritage Classic 114 Anniversary FLHCS |
| Harley-Davidson | 2018–2024 | Heritage Classic 114 FLHCS |
| Harley-Davidson | 2018–2021 | Heritage Classic FLHC |
| Harley-Davidson | 2020–2022 | Low Rider S FXLRS |
| Harley-Davidson | 2018–2021 | Slim FLSL |
| Harley-Davidson | 2019–2020 | Softail Slim FLSL |
| Harley-Davidson | 2018–2024 | Sport Glide FLSB |
| Harley-Davidson | 2021–2024 | Street Bob 114 FXBBS |
| Harley-Davidson | 2018–2020 | Street Bob FXBB |
Touring 23 models
Trike 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2024 | Road Glide 3 FLTRT |
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