Renault K4M Engine valve

Shijiazhuang paiwo auto parts Co.,Ltd , established in 2000, is a professional manufacturer specializing in the production of automotive valves and internal combustion engine intake and exhaust valves

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K4M intake valve 7701471378 7701472124 exhaust valve 7701471379 7701473354

Intake valve OE No.
7701471378 7701472124
Exhaust valve OE No.
7701471379 7701473354
Renault K4M engine features an inline-four configuration with four valves per cylinder, total 16pcs valves

Engine Valve Core Manufacturing Process and Advantages

The Renault K4M engine is widely used in models such as the Renault Megane, Scenic, and Dacia Logan/Duster. Operating under demanding conditions, it places extremely high requirements on the heat and wear resistance of its valves.
Intake valves: Manufactured from high-quality, wear-resistant alloy steel such as 40Cr to ensure resistance to wear under ambient temperatures and high-velocity intake flow.
Exhaust valves: Strictly manufactured from 21-4N austenitic heat-resistant steel, capable of withstanding the thermal fatigue and oxidative corrosion associated with high-load, high-temperature exhaust environments, thereby preventing valve burning or recession.

Precision Friction Welding and Surface Treatment
Utilizes an advanced bimetallic friction welding process to seamlessly join the valve stem and head, ensuring structural integrity.
The valve seating face undergoes specialized hardening treatments to effectively enhance impact resistance and sealing durability.

Strict Dimensional Tolerance Control
Stem diameter, head diameter, and overall length are manufactured in strict accordance with OE drawing tolerances, ensuring a perfect match with Renault OE valve guides and valve stem seals, thereby preventing abnormal oil consumption and valve leakage.

renault engine valve
K4M engine valve
renault Intake valve
7701471378 7701472124 renault intake valve
renault exhaust valve
7701471379 7701473354 renault exhaust valve