RK-3954B Street metal high-flow air intake Hammer. Black
Fits: 18-24 Softail; 17-23FLT/Touring; 17…
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
- K&N
- Part Number
- RK-3954B
- OEM Reference
- —
- Pack Quantity
- Each
- Category
- Air Intake Kits
- VAT Rate
- 20%
About This Product
K&N Street Metal Hammer high-flow air intake. Black finish. Aluminium backing plate with integrated velocity stack and oversized filter element. Built-in breathers replace the stock hardware. No chrome; just black and aluminium. For 107-inch Milwaukee-Eight engines. Fits 2018 to 2024 Softails, 2017 to 2023 Touring models, and 2017 to 2018 Trikes. Check your engine size before ordering. Expect to retune after fitting any high-flow intake.
Manufacturer part number: RK-3954B.
Fitment
45 models18-24 Softail; 17-23FLT/Touring; 17-18Trikes. With 107" engines
Softail 19 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 | 2023 | Low Rider ST FXLRST |
| 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 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2017–2018 | Freewheeler FLRT |
| Harley-Davidson | 2018 | Tri Glide Ultra Anniversary FLHTCUTG |
| Harley-Davidson | 2017–2018 | Tri Glide Ultra FLHTCUTG |
Related Products
View all →
Vance & Hines
& Hines, VO2 Falcon air intake. forged carbon fiber
Vance & Hines
& Hines, VO2 Falcon air intake. weaved carbon fiber
Vance & Hines
& Hines, VO2 Falcon air intake. forged carbon fiber
Performance Machine
PM, ''FASTair'' intake, air cleaner kit. Black CC
Vance & Hines
& Hines, VO2 Stingray air intake. matte black
Vance & Hines
& Hines, VO2 Radiant III air intake. Chrome
Vance & Hines
& Hines, VO2 Radiant III air intake. Chrome
Vance & Hines
& Hines, VO2 Insight air intake. wrinkle black
More from K&N
View all →
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.