Caterpillar Part reference
Part 0307959 is listed in the Caterpillar catalog as a tee stick vent valve drain. Catalog records associate it with the hydraulic system on the Caterpillar 307B, within a lines group pilot subgroup. Confirm the recorded conditions before ordering, since the parent assembly is not the same as this part.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
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| Part number | Description |
|---|---|
| 00***62 | elbow (to primary filter base) |
| 03***84 | connector |
| 03***41 | elbow; (7/16-20 str thd) |
| 0307959 | tee stick vent valve drain (current part) |
Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.
View model pageGeneral guidance
In general, a vent valve drain is a valve used on a hydraulic or fluid system to release trapped air or to drain fluid from a line or component at a chosen point. A tee-type fitting joins a line into three directions, so this kind of valve is typically a branch connection within piping rather than a standalone reservoir or pump.
Use the catalog number 0307959 as the reference for this part. Because the catalog associates it with the 307B hydraulic lines group pilot assemblies, check the recorded serial number and configuration conditions for those entries against your machine before ordering.
Catalog references
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