Excavator parts engine valve for Caterpillar C7 Excavator, Road machinery, Generator set, Mining machinery Excavator intake valve for Caterpillar Products Description ModelDescriptionPart numberMaterialSize(ã??)SurfaceCharacteristicApplicationPower-kwGuarantee DΦX°d ΦL C7INTAKE145739021-4N+4Cr9Si24060°8183chromingR strengthenExcavator, Road machinery, Generator set, Mining machinery240100 000 km or 1 year EXHAUST 147821121-4NWNb+4Cr9Si24345°9.5199chromingR strengthen Engine valve is the executive part of engine timing control of internal combustion engine, and it is the important parts which guarantee power performance, economic performance, reliability and durability of engine. Our Products Strength: 1. High quality special valve bar material: 4Cr9Si2, 4Cr10Si2Mo, 21-4N, X60, X80, INCONEL751,21-4NWNb. 2. Strict control process: CNC processing line, network continuous furnace for heat treatment,welding of double matels, valve seat welding(STELI), U type quenching, chrome plating and soft nitriding on valve surface, 100% flaw detection for finish products. 3. Quality certificate: ISO9001, IATF16949 4. Fast delivery capability: for batch order, within 30 days 5. Perfect service system: professional engineer for solving variours problem in use. FAQ: What is your sample policy? We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.