The ProX Titanium Intake Valve, manufacturer part number 28.4419-2, is designed for reliable replacement performance in select Kawasaki motocross and off-road motorcycles. Manufactured to OEM specifications, this intake valve supports proper engine operation and dependable fitment for riders, technicians, and professional engine builders.
Built for use in the intake side of the cylinder head, the ProX valve is suitable for the Kawasaki KX450F, KX450X, and KX450SR models listed below. This valve is sold individually, making it convenient for targeted repairs, valve-train service, or complete engine rebuilds where one or more intake valves require replacement. Verify the existing valve and engine application before installation.
Fitment includes the 2019, 2020, 2021, 2022, and 2023 Kawasaki KX450F; the 2021, 2022, and 2023 Kawasaki KX450X; and the 2022 and 2023 Kawasaki KX450SR. The ProX brand is recognized for replacement engine components engineered to meet demanding powersports service requirements. Installation should be performed by a qualified technician using the vehicle manufacturer’s service procedures and specifications.
Features:
- Material: Titanium construction for the intake valve application
- Manufacturing Standard: Manufactured to OEM specifications
- Quantity: Sold individually
- Product Type: Replacement intake valve
- Brand: ProX
- Manufacturer Part Number: 28.4419-2
- Fitment: 2019-2023 Kawasaki KX450F, 2021-2023 Kawasaki KX450X, and 2022-2023 Kawasaki KX450SR
Fitment:
2019 Kawasaki KX450F
2020 Kawasaki KX450F
2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Kawasaki KX450F
2022 Kawasaki KX450SR
2022 Kawasaki KX450X
2023 Kawasaki KX450F
2023 Kawasaki KX450SR
2023 Kawasaki KX450X