.50 is the gap for a 2003 Dodge intrepid with a 2.7 moter .
In the cylinder head, just follow the coil wires.
The Merc's seem to perform better with NGK brand plugs installed. The 1974 model, 50 hp, good ol in-line 4, requires an NGK BUHW. If you go with a Champion brand plug, originally installed, use a L76V. Both plugs are perma-gap type, so no adjustment required.
the 50 mark
0.028"
autolite platinums, the gap is .50
No, it is not necessary to change the spark plugs on your 2003 Ford Winstar at 30,000 miles. It has Platinum Plugs from the factory and they have a life span of approximately 100,000 miles. I suggest checking the gap and cleaning them at 50-60M miles, but not replacing until around 100K.
.50
two
the gap setting is 50 55 no more.
NGK plug BP4HS - Gap for PW 50 is 0.6mm.
the gap specifications is 50 on a 2002 Cadillac Seville