Professional Transmission Valve Manufacturer | Compatible with Eaton Fuller K-3331, A-5000, A-4740

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About Caiteng

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.

Heavy Truck Transmission Pneumatic Valve

Precision Grinding and Inspection, Cylindricity ≤ 0.0025mm.

Product category display

Transmission pneumatic control valve As a professional manufacturer, we supply OE-quality transmission pneumatic control valves for heavy-duty trucks. All products are built to match OE performance, fit, and specifications.We specialize in reliable direct replacements for classic industry models, including A-5000 slave valve, A-4740 air filter regulator, and K-3331 splitter valve. These components deliver consistent, long-lasting performance for transmission systems in commercial vehicles and heavy-duty equipment.Core Manufacturing Capabilities Our strength lies in end-to-end manufacturing expertise across the full product lifecycle: Process Engineering: Convert complex components into efficient, repeatable mass production processes. Key Process Optimization: Resolve critical production bottlenecks to ensure performance meets strict industry standards. Stable Mass Production: Establish reliable, tightly controlled production and quality systems for consistent output. With this capability chain, we support high-volume, stable supply for customer assembly lines and aftermarket distribution, ensuring operational continuity and optimized cost efficiency.

Company advantage

Focus and professional

Focus on commercial vehicle parts. Focus on customer needs. Focus on technology research and development.

Doing business with Tritenco is easy

Years of pneumatic control valve production experience. Provide the right solution on time, every time. Convenient, Lag-Free Response.

Available business benefits

Offers many cost-reducing options one-stop shopping. Provide just-in-time (IT) delivery. Multi-variety small batch production.

Quality

ISO9001/IATF1 6949 certification FMEA 8D problem solving Preventive and Corrective Actions automated manufacturing

Efficient Coordination, Worry-Free Delivery

Smart Order Management

Utilizing an advanced order management system to achieve full-process digital tracking from order receipt, production to shipment, ensuring information transparency and rapid response.
Overseas Forward Warehousing

Operating a US-based overseas warehouse, supporting local distribution and flexible inventory management, significantly shortening delivery cycles, helping you respond quickly to market demands.
Consolidated Shipping Services

Efficiently consolidate products from multiple suppliers for container consolidation (LCL), substantially saving your logistics costs and simplifying customs clearance processes.
Professional Logistics Execution

Possessing extensive international logistics experience, calmly handling complex situations, ensuring safe and timely delivery of goods.