18000042 Valve, Intake, 40mm
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
- Harley-Davidson
- Part Number
- 18000042
- OEM Reference
- —
- Pack Quantity
- Each
- Category
- Valves & Parts
- VAT Rate
- 20%
About This Product
Genuine Harley-Davidson intake valve, part number 18000042. This is the 40mm intake valve, Thai made. It fits the Sportster S 1ZC4 2021-2025 and RH1250S 2022-2024, the Nightster RH975 2022-2025, the Nightster Special RH975S 2023-2025, and the 2026 Nightster, Nightster Special and Sportster S. Check your parts book for the correct head gasket and keep the valve train clean during assembly.
Manufacturer part number: 18000042.
Fitment
8 models Sportster 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2026 | Nightster® RH975 |
| Harley-Davidson | 2026 | Nightster® Special RH975S |
| Harley-Davidson | 2026 | Sportster® S RH1250S |
Sportster RH 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2021–2025 | 1ZC4 SPORTSTER S RH1250S |
| Harley-Davidson | 2023–2025 | NIGHTSTER (RH975) |
| Harley-Davidson | 2023–2025 | NIGHTSTER SPECIAL (RH975S) |
| Harley-Davidson | 2022 | SPORTSTER NIGHTSTER (RH975) |
| Harley-Davidson | 2022–2024 | SPORTSTER S (RH1250S) |
Related Products
View all →
Harley-Davidson
Valve, Exhaust, 33mm, Sodium Fi
Harley-Davidson
Valve, Exhaust
Harley-Davidson
Valve, Engn Brthr, Port, Assembly
Harley-Davidson
Valve, Engn Brthr, Air Oil Separ
Harley-Davidson
Valve, Intake, 44mm
Harley-Davidson
Intake Valve, 7mm
Harley-Davidson
Valve, 7mm, Exhaust
Harley-Davidson
Valve, Intake, 7mm
More from Harley-Davidson
View all →
T/P Btm, Twist Cherry/Silv For
Engn Mt Bracket Sub-Component, Teenut
T/P Sub-Component Btm Drilled , Sp
Bottom, Drilled, T-Pak
Elec Misc Component, Bkrt, Fuse
Rf, Lh, Blk Tmpst W/P/S
Wire Harn Sub-Component, Secondary
Kit-Front Frng, Solid
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.