Proportioning Valve Lever Type 10mm Threads

The Proportioning Valve Lever Type 10mm Threads (TILTON model 90-1003) is a precision hydraulic control component engineered for professional racing, brake system tuning, and tactical vehicle applications. Built for operators who demand exact pressure management across split brake circuits, this compact aluminum valve gives you real-time proportioning control—critical when balancing front-to-rear brake bias under extreme conditions. Whether integrating into a high-performance suspension system or maintaining split-circuit redundancy in mission-critical platforms, this lever-actuated proportioner delivers repeatable, adjustable performance.

Constructed from black anodized aluminum for corrosion resistance and durability in harsh environments, the proportioning valve features dual 10mm female inlet/outlet ports with a 1.00 thread pitch—direct bolt-in compatibility with standard metric hydraulic fittings. The lever actuation mechanism provides manual adjustment across a wide 100–1000 psi operating range, allowing field technicians to dial in exact proportioning ratios without breaking down the circuit. This adjustability is essential for compensating for load variations, suspension geometry changes, or brake pad wear across extended operational periods. Compact dimensions (3.65 x 1.3 x 5.3 inches) and minimal weight (0.33 lbs) ensure integration into space-constrained installations without compromising system architecture.

Professionals in motorsport, law enforcement mobile units, and tactical logistics rely on proportioning valves to maintain brake system integrity across variable loading and high-G maneuvers. The lever control design enables rapid in-vehicle adjustment—critical during extended operations when payload or fuel state changes brake balance dynamics. Installation requires standard 10mm metric hose fittings and basic hydraulic plumbing knowledge; compatibility spans any dual-circuit brake system using 10mm metric ports. Verify your existing inlet/outlet thread specifications and pressure requirements (100–1000 psi range) before integration to ensure seamless operation.