VALVE CENTRE TITANIUM YZF426, PROX 28.2420-2 5JG-12111-00
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
High-performance racing intake valve centre made from titanium. Head diameter: 27.00mm, stem diameter: 4.50mm, stem length: 83.25mm. Manufactured to high quality standards using a one-piece forged high-tech Ti3al alloy for extra strength and superior material properties at high temperatures. Features an additional CrN coating for extreme surface hardness and reduced friction. Exceeds OE specifications in dimensions and reliability. Replaces OEM part number 5JG-12111-00. Part number 28.2420-2.
- SKU
- 65-495.PX.TI
- Brand
- Pro-X Racing
- Availability
- In Stock (3)
Fitments (16)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 400F | 1998 |
| YAMAHA | WR 400F | 1999 |
| YAMAHA | WR 400F | 2000 |
| YAMAHA | WR 426F | 2000 |
| YAMAHA | WR 426F | 2001 |
| YAMAHA | WR 426F | 2002 |
| YAMAHA | YZ 400F | 1998 |
| YAMAHA | YZ 400F | 1999 |
| YAMAHA | YZ 400F | 2000 |
| YAMAHA | YZ 426F | 2000 |
| YAMAHA | YZ 426F | 2001 |
| YAMAHA | YZ 426F | 2002 |
| YAMAHA | YZ 450F | 2010 |
| YAMAHA | YZ 450F | 2011 |
| YAMAHA | YZ 450F | 2012 |
| YAMAHA | YZ 450F | 2013 |
- General Product Group
- Cam & Valvetrain
- General Product Type
- Valve - Intake
- Variant Id
- 264018
FULL DESCRIPTION
ProX Titanium High-Performance Racing Valve
Enhance your engine's performance with this ProX Titanium High-Performance Racing Valve. Designed for intake applications, this valve is crafted from a high-tech Ti3Al alloy, forged into a single piece for exceptional strength and durability. The material offers superior properties at high temperatures, making it ideal for demanding racing conditions. An additional CrN coating provides extreme surface hardness and significantly reduces friction for optimal airflow and efficiency.
These ProX titanium valves are manufactured to stringent quality standards and exceed Original Equipment (OE) specifications in both dimensions and reliability.
Key Features:
- Type: Intake Valve
- Material: Titanium (Ti3Al Alloy)
- Construction: One-piece forged
- Coating: CrN coating for extreme surface hardness and low friction
- Performance: High-performance racing design
- Quality: Exceeds OE specifications in dimensions and reliability
- Dimensions: Head Diameter 27.00mm, Stem Diameter 4.50mm, Stem Length 83.25mm
ProX also offers steel valves and titanium-to-steel conversion kits. The steel valves are manufactured from premium grade steel to exact OEM specifications and tolerances by leading OEM factories in Japan, providing a direct and cost-effective OEM replacement option.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
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.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.