Features: These are the plugs on the front and back of the two cylinder heads to cover the ends of the high-pressure fuel rails.
After years of use, O-rings tend to deteriorate and start to leak.
1/2 inch drive socket hole. You can use the square end of the 1/2-inch drive socket inserted into the hole to remove and replace them.
Easy installation:
1. Insert the square end of the 1/2" drive socket wrench into the end plug of the oil rail and remove it.
2. Clean the threads on the end plug and in the oil rail hole. Make sure to completely remove the old screw lock glue 277.
3. Remove the old oil rail end plug O-ring, and put the new O-ring into the groove on the oil rail plug.
(Or, if you are replacing the end plug, make sure that the O-ring is in the correct position on the new plug.)
4. Apply new screw locking glue 277 to the thread of the end plug, and then install it in the oil rail.