1974-1988 C3-C4 PCV Crankcase Ventilation Valve 6487778 - OEM Number(s) (6487778,6487779)
This replacement PCV valve restores proper crankcase ventilation on your Corvette, curing the increased oil consumption a clogged valve can cause.
This replacement Corvette PCV (positive crankcase ventilation) valve restores correct crankcase ventilation on your 1974–1988 Corvette. If your engine has started burning more oil than normal, a clogged or stuck PCV valve is a common and inexpensive culprit worth checking first.
When the PCV valve clogs, crankcase ventilation drops off and oil consumption can climb abruptly. A fresh valve restores proper flow, helping your engine breathe correctly and keeping oil consumption back where it belongs.
Fits the Following Corvette Models:
- 1974–1982 C3 Corvette
- 1984–1988 C4 Corvette
Features / Benefits:
- Replacement PCV (positive crankcase ventilation) valve
- Restores proper crankcase ventilation
- Helps cure an abrupt increase in oil consumption
- Direct replacement for a clogged or stuck original
- Simple, inexpensive maintenance item
- GM reference part number: 6487778
Material / Finish: Metal PCV valve body, ready to install.
Because Details Matter: A PCV valve is one of the smallest, cheapest parts under the hood, and a clogged one can masquerade as a much bigger problem when the oil consumption climbs. Replacing it is easy insurance that keeps your Corvette's engine breathing right and running clean, the kind of detail that saves you chasing ghosts.
Also known under these part numbers: (For reference only)
- 036666083125
- 303093
- 6487778
- 6487779
- CV774C