there is a sticker under your hood it has the correct info. i think it is on the hood but it may be near or on firewall. i have a 2001 and it may not be the same gap as yours.
the spark plug gap for a 2000 dodge/plymouth neon is 0.035 the spark plug gap for a 2000 dodge/plymouth neon is 0.035
the gap is .035 for a 2003 neon
.035 .035
.050 inch
The standard spark plug gap on a Dodge Neon 2.0 is between 0.035 and 0.040 inches. The gap varies based on the type of plugs used.
0.035 for SOHC and DOHC
Remove the spark plug wires from the spark plugs, use an extension for your Allen wrench, and use a spark plug socket to remove the spark plug.
Just like any other spark plug you just need to find the size of the plug and buy it.
The Spark Plug Gap.035 (In thousandths of an inch)
0.044 inch Champion RC9YC
use your hands.
.50 per emmisions label