600-309 Ness, Stage 1 Big Sucker air cleaner kit. Black Knuck
Fits: 25-26 Softail; 24-26 FLHX; 24-26 FL…
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Arlen Ness
- Part Number
- 600-309
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Air Intake
- VAT Rate
- 20%
About This Product
For a bold, custom look on your Milwaukee-Eight, this Arlen Ness Stage 1 Big Sucker kit features a black anodized Knuckle billet outer cover. This performance intake is designed to significantly increase airflow over the stock setup, resulting in more horsepower and torque. The kit includes a high-flow cotton gauze filter pre-oiled with black oil and a backing plate with an integrated air venturi and smooth radius inlet to maximize air velocity into the throttle body. It is a high-quality, bolt-on performance upgrade. This kit fits 2025 to 2026 Softail models, 2024 to 2026 Street Glide and Road Glide models, the 2026 FLTRXL, 2023 to 2025 CVO Street Glide and Road Glide models, and 2024 to 2026 CVO Road Glide ST models.
Manufacturer part number: 600-309.
Fitment
11 models25-26 Softail; 24-26 FLHX; 24-26 FLTRX; 2026 FLTRXL; 23-25 FLHXSE; 2026 FLHXLSE; 2026 FLHXLSTSE; 23-25 FLTRXSE; 24-26 FLTRXSTSE; 26 Trike
CVO/Custom 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2025 | CVO Road Glide FLTRXSE |
| Harley-Davidson | 2023–2024 | CVO Road Glide FLTRXSE |
| Harley-Davidson | 2025 | CVO Road Glide ST FLTRXSTSE |
| Harley-Davidson | 2024 | CVO Road Glide ST FLTRXSTSE |
| Harley-Davidson | 2025 | CVO Street Glide FLHXSE |
| Harley-Davidson | 2023–2024 | CVO Street Glide FLHXSE |
Touring 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2025 | Road Glide FLTRX |
| Harley-Davidson | 2024 | Road Glide FLTRX |
| Harley-Davidson | 2025 | Street Glide FLHX |
| Harley-Davidson | 2024 | Street Glide FLHX |
| Harley-Davidson | 2025 | Street Glide ULTRA FLHXU |
More from Arlen Ness
View all →
Ness, Touring lowered jiffy stand. Chrome
Ness, 10-gauge caged mirror right hand chrome
Ness, Deep cut caged mirror right hand black
Ness, Speedliner solo shift foot control kit. Chrome
Ness, Speedliner rider floorboards
Ness, SpeedLiner passenger floorboards. All black
Ness, Spider Hub Kit Front. Chrome
Ness, Wheel hub front chrome SF
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.