We manufacture high-performance pneumatic valves for heavy-duty Eaton Fuller transmissions, including the A-5000 Slave Valve, K-3331 Splitter Valve, and A-4740 Air Filter Regulator. 

Built to OE-equivalent standards, our production line was originally designed for OE components, with proven tooling and processes. Valve bodies are impregnated and anodized with upgraded seals, and automated production reduces early failures for consistent batches. Our valves match OE specs without the brand markup, delivering reliable performance for North American heavy-duty operators. Local inventory in Katy, TX ensures fast shipping for both small and bulk orders. 

Pricing scales with volume, and we offer quarterly rebates on total purchase volume to help active accounts lower net costs. We handle small shipments too, so you avoid supplier delays even at low usage.

Shop directly on our website; we accept PayPal and credit cards. You may place sample orders via Amazon or eBay for validation. Note: quarterly rebates and volume pricing only apply to website orders, not Amazon or eBay orders. 

Every valve is precision-engineered to reduce costly downtime and improve operational efficiency. We serve single-truck owners, repair shops, and large commercial fleets.