KIT IN VALVE+SPRING YZF450, PROX 28.SIS2444-2 INTAKE
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Prox Steel INTAKE Valve/Spring Kit. This kit contains steel intake valves and specially designed stronger valve springs. The ProX titanium into steel conversion extends lifespan compared to OEM titanium valves. The kit replaces OEM valves and valve springs and can be installed using OEM retainers, bases, and valve seats. SKU 65-K160.PX. Part number 28.SIS2444-2.
- SKU
- 65-K160.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
Fitments (12)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 450F | 2016 |
| YAMAHA | WR 450F | 2017 |
| YAMAHA | WR 450F | 2018 |
| YAMAHA | YZ 450F | 2014 |
| YAMAHA | YZ 450F | 2015 |
| YAMAHA | YZ 450F | 2016 |
| YAMAHA | YZ 450F | 2017 |
| YAMAHA | YZ 450FX | 2016 |
| YAMAHA | YZ 450FX | 2017 |
| YAMAHA | YZ 450FX | 2018 |
| YAMAHA | YZ 450FX | 2019 |
| YAMAHA | YZ 450FX | 2020 |
- General Product Group
- Cam & Valvetrain
- General Product Type
- Valve & Spring Kit
- Variant Id
- 264476
FULL DESCRIPTION
ProX Steel Intake Valve and Spring Kit for Yamaha YZ450F
Upgrade your engine's performance and durability with the ProX Steel Intake Valve and Spring Kit. This kit is designed to replace OEM titanium valves and offers a significant increase in lifespan, lasting up to three times longer.
Engineered for direct replacement, this kit includes high-quality steel intake valves and specially designed, stronger valve springs. The increased weight of the steel valve necessitates a heavier spring to ensure optimal performance and longevity. You can utilize your OEM retainers, bases, and valve seats for a straightforward installation.
Key Features:
- Durable steel intake valves for extended lifespan
- Stronger, custom-designed valve springs to accommodate steel valve weight
- Direct replacement for OEM valves and springs
- Utilizes existing OEM retainers, bases, and valve seats
- Designed to outperform and outlast standard titanium valves
QUESTIONS? JUST ASK
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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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