K Rain Stem/Disk Assembly, 6000 Series Indexing Valve, .032 Standard 15 GPM

A K-Rain 6000 Series indexing valve that stalls on one zone, skips ahead early, or weeps between outlets almost always traces back to the same part: the stem and disc assembly. It is the only moving part inside the valve body, and once the disc face wears or the spring loses tension, no amount of cleaning the manifold will restore correct sequencing. This is the standard stem/disk assembly built to K-Rain's own .032 spring spec, rated for a minimum of 15 GPM. That spring tension is what lets the disc index cleanly to the next outlet each time flow is shut off and restarted, instead of hanging between zones or double-advancing. K-Rain also offers lighter .028 (10 GPM+) and .025 (6 GPM+) springs for lower-flow systems, so confirm your system runs 15 GPM or more before installing this standard version. It fits both configurations of the 6000 Series body: 4-outlet valves running 2 to 4 zones and 6-outlet valves running 5 to 6 zones, across the full 25 to 150 PSI operating range the 6000 Series is built for. That covers everything from a residential well-pump setup to a municipal-pressure commercial site, without needing a different assembly for each. Because the indexing valve replaces up to six or eight electric solenoid valves with one hydraulically-driven body, it is common on properties where running wire to every zone isn't practical - drip zones, tree and shrub bubbler circuits, and remote turf areas fed by a single main line. When that valve stops advancing correctly, the fix is rarely the whole unit; swapping the worn stem and disc restores full indexing without digging up or replacing the valve body itself. For irrigation contractors and landscapers who keep 6000 Series valves in service, this genuine K-Rain replacement part is the direct fix for stem wear, disc pitting, or spring fatigue, and it installs with basic hand tools during a routine service call.