Overview
The Crown Automotive valve cover mounting screw, part CROG271444, is a 5/16 in. -18 x 5/8 in. screw for mounting a valve cover. Three are required per valve cover, and it is universal fit.
Valve cover fastener care
Valve cover screws hold a gasket under steady heat and oil exposure, so their job is to keep even pressure on the cover without crushing the seal. Threads that are stripped, rusted or cross-threaded make an even clamp hard to achieve. Clean the threaded holes with a tap before fitting new screws, and wipe away any oil that would hide a stripped thread.
Tighten the screws in a crisscross pattern rather than one at a time, so the cover seats evenly. Use the torque value from your engine’s service manual, not a guess. Once the engine has run and cooled, re-check snugness, since gasket compression can settle after the first heat cycles.
Look for oil seepage around the screw heads at each oil change, since loose screws are a common source of leaks at the cover.
- Replace any screw with a damaged head or rounded threads.
- Keep spare screws of the same thread size on hand for the set.
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | CROG271444 |
| Thread size | 5/16 in. -18 |
| Length | 5/8 in. |
| Quantity required | 3 |
| Fitment | Universal Fit |
Vehicle fitment
Universal fit is listed, and no make, model or year is named, so this screw is not tied to a specific vehicle. Match the thread and length to your valve cover flange.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Three screws are required for each valve cover, so plan on a full set of three.
What’s included
The item is the mounting screw. Check the package count against the three required per valve cover before installing.
