KIT IN VALVE+SPRING RM-Z250, PROX 28.SIS4335-2 INTAKE KXF
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Delivery to United States 5–8 business days
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ProX Steel INTAKE Valve and Spring Kit. This kit contains steel intake valves and specially designed stronger valve springs. ProX titanium to steel conversion kits extend lifespan up to 3 times the OEM titanium valves. The ProX kit replaces OEM valves and valve springs and can be installed using OEM retainers, bases, and valve seats. Part number 28.SIS4335-2. Weight 128g.
- SKU
- 65-K178.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (6)
Fitments (6)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 250F | 2004 |
| KAWASAKI | KX 250F | 2005 |
| KAWASAKI | KX 250F | 2006 |
| SUZUKI | RM-Z 250 | 2004 |
| SUZUKI | RM-Z 250 | 2005 |
| SUZUKI | RM-Z 250 | 2006 |
- General Product Group
- Cam & Valvetrain
- General Product Type
- Valve & Spring Kit
- Variant Id
- 264494
FULL DESCRIPTION
Pro-X Steel Intake Valve and Spring Kit
Upgrade your motorcycle's performance and durability with the Pro-X Steel Intake Valve and Spring Kit. This kit is designed as a direct replacement for your original equipment titanium valves and valve springs, offering a significant improvement in lifespan.
Key Features:
- Extended Lifespan: Pro-X steel valves are engineered to last up to three times longer than OEM titanium valves, providing superior wear resistance.
- Complete Kit: Includes a set of high-quality steel intake valves and specially designed, stronger valve springs. The heavier steel valves require the use of more robust springs for optimal performance.
- Easy Installation: This kit replaces OEM valves and springs. You can utilize your existing OEM retainers, bases, and valve seats for a straightforward installation process.
- Durable Construction: Made with high-grade steel for reliability and longevity.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
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