2Bros Parts

KIT IN VALVE+SPRING KXF250, PROX 28.SIS4338-2 INTAKE

$167.78Only 1 left

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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 replaces OEM valves and springs using OEM retainers, bases, and valve seats. The steel valves offer a longer lifespan compared to OEM titanium valves. The kit includes steel intake valves and specially designed stronger valve springs due to the increased weight of the steel valve.

Specifications
SKU
65-K168.PX
Brand
Pro-X Racing
Availability
In Stock (1)

Fitments (2)

MakeModelYear
KAWASAKIKX 250F2009
KAWASAKIKX 250F2010
General Product Group
Cam & Valvetrain
General Product Type
Valve & Spring Kit
Variant Id
264484
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Steel Intake Valve and Spring Kit

Upgrade your engine's performance and durability with this ProX Steel Intake Valve and Spring Kit. ProX offers a comprehensive selection of titanium to steel conversion kits designed to significantly enhance the lifespan of your engine's valves.

This kit includes a high-quality steel intake valve and specially designed, stronger valve springs. The increased weight of the steel valve necessitates the use of a heavier spring for optimal performance and reliability. This ProX kit is engineered for a direct replacement of OEM valves and springs, allowing you to utilize existing OEM retainers, bases, and valve seats for a straightforward installation.

Key Features:

  • Extended Lifespan: ProX steel valves offer up to three times the lifespan of standard OEM titanium valves.
  • Complete Kit: Includes steel intake valves and matching heavy-duty valve springs.
  • OEM Compatibility: Designed to work with OEM retainers, bases, and valve seats for easy installation.
  • Enhanced Durability: Steel construction provides superior strength and resistance to wear.
Before you buy

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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

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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