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

About Caiteng

Tritenco is the specialized brand of Zhuji Caiteng Machinery Manufacturing Co., Ltd., focusing on the R&D and production of OE-equivalent pneumatic control valves for heavy-duty transmissions. With our IATF 16949-certified quality system, we deliver micron-level precision machining and strict geometric tolerance control to ensure every Tritenco valve meets strict performance standards. Our core product line includes the A-5000 Slave Valve, K-3331 Splitter Valve, and A-4740 Air Filter Regulator — all engineered as reliable direct replacements for heavy-duty truck applications. As a trusted long-term supplier to industry leaders, we combine proven manufacturing processes with rigorous quality control to provide stable, cost-effective solutions for our global customers.

Heavy Truck Transmission Pneumatic Valve

Precision Grinding and Inspection, Cylindricity ≤ 0.0025mm.

Product category display

Transmission pneumatic control valve As a designated manufacturing partner for Eaton, we supply OEM-quality pneumatic control valves for transmissions, ensuring performance and standards aligned with Eaton's original specifications. We reliably produce and offer direct replacements for key Eaton legacy models, specifically the A-5000, A-4740, and K-3331, providing stable and dependable solutions for commercial vehicle and heavy-duty equipment transmission systems. Core Realization Capability： Our value stems from core manufacturing capabilities that span the entire product lifecycle: Process Design: transforming complex products into efficient, reliable mass production processes; Key Process Breakthrough: specializing in overcoming core bottlenecks to ensure performance meets standards; Mass Production System Building: establishing stable and controllable mass production and quality control systems. Leveraging this capability chain, we achieve stable high-volume supply to customer production lines, ensuring operational continuity and cost optimization.

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.