Overview
The Crown Automotive J3218977 is a rubber valve deflector, a small rubber part that sits on the valve to direct oil away from the valve stem and guide. It carries part number J3218977 and UPC 848399059694.
Crown Automotive marks it Universal Fit, and no Jeep model or engine is named. Verify the valve layout on your engine before fitting it.
Key features
- Rubber valve deflector
- Marked Universal Fit
- Crown Automotive part number J3218977
- UPC 848399059694
Valve guides and oil control
Valve deflectors sit on the valve to direct oil away from the stem and guide, which helps keep oil out of the combustion chamber and intake path. Because the part is small and sits in a tight area, it is usually handled during a head or valve service rather than on its own. Clean the area thoroughly before fitting and keep debris out of the port.
Signs that oil control needs attention include blue smoke on startup, oil fouling on the spark plugs and oil residue around the intake. A worn guide can let oil travel past the valve even with a deflector in place, so check guide wear during any valve work. Replace the deflector with a new part rather than reusing one that is hardened, cracked or misshapen.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J3218977 |
| UPC | 848399059694 |
| Material | Rubber |
| Fitment | Universal Fit |
Vehicle fitment
This deflector is marked Universal Fit, so it is not tied to a particular Jeep model or year range. Check the valve layout on your engine before fitting it.
Confirm your vehicle’s year, model and trim before ordering.
What’s included
The package is a rubber valve deflector only, so plan any other parts before installing.
