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K-3331 Flow Divider Valve — The “Distribution Expert” for Eaton Transmission Air Circuit Balancing
The K-3331 splitter valve is the air distribution expert at the core of Eaton’s multi‑cylinder pneumatic system. It acts like a precise manifold to deliver balanced, synchronized air to the range cylinder, synchronizer and other actuators.
In Eaton 13/18‑speed transmissions, the auxiliary synchronizer needs smooth, synchronized dual‑cylinder movement. Uneven air distribution causes hard shifts, gear grinding and noise. The K‑3331 uses precision orifices and balance chambers to keep pressure difference ≤0.05MPa across circuits for shock‑free engagement.
The splitter valve is prone to contamination, sticking and cross‑leaks, leading to slow response or sync failure. Shop the K-3331 splitter valve and related parts from our lineup. The Tritenco K‑3331 uses hardened alloy spools and special seals to resist dirt, wear and aging, and is fully compatible with all Eaton heavy‑duty transmissions.
A reliable splitter valve is key to maintaining consistent performance in your transmission.










