Tritenco specializes in the precision manufacturing of oe quality heavy-duty truck transmission pneumatic valves. Our core product line includes the a5000 slave valve, k3331 splitter valve, and a4740 air filter regulator, designed for reliable performance in global heavy-duty truck fleets. We also offer precision-machined components, high-precision valve stems and shafts, and custom mechanical base parts for industrial applications, all manufactured to strict quality standards with factory-direct pricing.

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.

Welcome to Tritenco’s news center. Here you can find the latest updates on our new products, manufacturing developments, industry participation, and technical insights related to heavy-duty truck transmission valves. Stay tuned for announcements about our oe-quality components, including the a5000 slave valve, k3331 splitter valve kit, and a4740 air filter regulator, as well as updates on our production capabilities and quality improvements.