Perkins valve spring 365472 plays a key elasticity control role in the engine valve train. It drives valve closing through precise elastic deformation, ensuring tight sealing with valve seats and intake efficiency. Its stable elasticity directly affects valve timing accuracy and cylinder sealing, compatible with Perkins 404D, 1106 series engines.
Made of high-strength silicon-manganese alloy steel wire (5-8mm diameter) via cold coiling, it undergoes isothermal quenching with tensile strength up to 1800MPa. Phosphated surface resists corrosion, with fatigue life ≥10 million cycles (equivalent to 15,000 engine hours). Operating at -40℃ to 300℃, it withstands alternating stress from high-frequency valve movement (over 2000 times/min), with free length deviation ≤0.5mm and elasticity consistency (error ≤±3%).
Ningbo Qiuning offers original and aftermarket 365472 valve springs: Original meets Perkins ISO 9001, each tested for force curve (350-380N at 5mm deformation), ideal for heavy-duty equipment requiring high valve precision; Aftermarket passes 5 million fatigue tests, key parameters ≥90% of original, priced at 50%-60% of original, suitable for regular maintenance and budget needs.
Use special tools to check perpendicularity (deviation ≤1°) during installation to avoid spring breakage. We have sufficient inventory and support global shipping within 48 hours. Our technical team can provide elasticity testing standards and installation guidance. Welcome to inquire and purchase:
WeChat/WhatsApp：+8615888032469
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