WORX Yamaha 1.8L Supercharged Air Filter Kit for FX, FZR/FZS, GP1800 (2008-2026) - WR04020
WR04020
This part works on its own. A race-tested custom tune is optional and can add a little more from your setup.
Learn about our tunes → · Not sure? Call 786-465-5150
WORX Yamaha 1.8L Supercharged Air Filter Kit for FX, FZR/FZS, GP1800 (2008-2026) - WR04020
This supercharged air filter kit is built for Yamaha 1.8L SHO and SVHO platforms using the OEM supercharger front housing. It replaces the restrictive stock intake path with a 4-inch filter and molded hose setup that improves airflow and sharpens throttle response without adding unnecessary installation complexity. This kit is for supercharged models only. Does not fit naturally aspirated VXR/VXS models.
The WR04020 kit uses a tapered smooth-bore molded silicone hose that connects to the supercharger, along with a billet anodized 4-inch filter bracket that mounts to the hull. The included 4-inch flame arrestor air filter features a silicone end cap and meets USCG J1928. An engine breather filter is also included, so the kit covers the main components needed for a clean intake conversion on compatible Yamaha 1.8L supercharged skis.
Worx makes one version per generation, so you need to pick the year of your ski before ordering. For 2008-2018 models and 2019-2020 GP1800, use WR04020. For 2019+ FX SVHO, use WR04020-FX. For 2021-2023 GP1800, use WR04020-GP. For 2024-2026 GP1800, use WR04020-GP24. This matters because the hose and layout are matched to the specific generation.
This kit is a practical choice for riders who want a less restrictive intake setup on SHO or SVHO builds while keeping installation straightforward. A tune is not required for basic installation on an air filter kit like this, though setup should always match the rest of the parts on the ski. It also pairs well with the Worx ribbon removal kit WR04001 if you are cleaning up the intake path further. Does not fit models not listed below.
✅ Compatible Models 🔽
Yamaha
- FX Cruiser SHO (1.8L) (2008-2016)
- FX SHO (1.8L) (2011-2015)
- FX Cruiser SVHO (2014-2026)
- FX SVHO (2014-2026)
- FX Limited SVHO (2017-2026)
- FZR (2011-2016)
- FZS (2009-2016)
- GP 1800 (2017-2018)
- GP1800R SVHO (2019-2023)
- GP SVHO (1.8L) (2024-2026)
Not sure about your ski? Use the fitment finder on this page or call/text 786-465-5150.
➕ Performance Benefits 🔽
- Better airflow: Replaces the restrictive stock intake path with a 4-inch flame arrestor filter and smooth-bore hose to the supercharger.
- Sharper throttle response: Improved intake flow helps the engine respond quicker on compatible Yamaha 1.8L SHO and SVHO platforms.
- Complete bolt-on kit: Includes the filter, molded silicone hose, billet hull-mount bracket, and engine breather filter for a clean installation.
⚙️ Technical Specifications 🔽
| Part # | WR04020 |
| Brand | Worx Racing |
| Fitment | Yamaha. Full model and year list under Compatible Models above. |
| Fitment exclusions | Does not fit naturally aspirated VXR/VXS models. |
| Material | Molded silicone hose, billet anodized bracket |
| What's included | 4-inch flame arrestor air filter with silicone end cap, tapered smooth-bore molded silicone hose to the supercharger, billet anodized 4-inch filter bracket that mounts to the hull, engine breather filter |
| Install notes | Hose fits the OEM supercharger front housing. Worx makes one version per generation, so match the kit to your ski year: 2008-2018 / 2019-2020 GP1800 = WR04020, 2019+ FX SVHO = WR04020-FX, 2021-2023 GP1800 = WR04020-GP, 2024-2026 GP1800 = WR04020-GP24. |
❓ FAQs & Why Choose Us 🔽
Will this fit my ski?
Check Compatible Models above or use the fitment finder on this page. Not sure? Call or text 786-465-5150 before ordering.
Do I need a tune?
No. For an air filter and intake kit like this, a tune is optional, not required, for standard installation.
Which year option do I need?
Worx makes one version per generation. Use WR04020 for 2008-2018 models and 2019-2020 GP1800, WR04020-FX for 2019+ FX SVHO, WR04020-GP for 2021-2023 GP1800, and WR04020-GP24 for 2024-2026 GP1800.
Why Buy From Cabrera MotorSports?
- Fast Shipping: We ship incredibly fast from FL so you can get back on the water.
- Expert Support: We ride and race these exact parts on our own builds. We race what we sell!
We race what we sell. We race and wrench on these platforms ourselves, so your fitment and setup questions get answered by a racer, not a call center.
