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Tritenco is the specialized brand of Zhuji Caiteng Machinery Manufacturing Co., Ltd., focusing on the R&D and production of OE-equivalent transmission pneumatic control valves for heavy-duty trucks. Backed by our IATF 16949-certified quality system, we ensure micron-level precision and strict tolerance control, making every Tritenco valve meet high performance standards. Our core products include the A-5000 slave valve, K-3331 splitter valve kit, and A-4740 air filter regulator, all designed for reliable use in heavy-duty truck transmissions. As a dedicated manufacturer, we support customers—especially those in the North American aftermarket—with factory-direct pricing, stable supply chains, and tailored solutions for their transmission system needs. Shop our OE-quality replacement parts directly on eBay and Amazon for fast shipping and reliable delivery.

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