this is the correct ngk plug, heres a break down for it:
PTR5A-13
P = Premium Platinum
T = Tapered Seat 14, 17.5mm Reach, 16mm (5/8 ) hex
R = Resistor
5 = Heat Rating Numbers 2hot - 11 cold
A = design type
13 = 1.3mm (.050") wide gap
The Stock number for that plug is 2467
Number of plugs per box - 4
single plug UPC - 0087295 2467 3
4 plugs weigh .46 lbs
description:
Platinum plug, 14mm, 25mm reach, 5/8" hex, tapered seat, resistor, projected tip, extreme long life double platinum, fine point platinum on center electrode, platinum tip laser welded on ground electrode, 0.52"gap
If someone wants me to post another car, please let me know.
Jarred
**EDITED 9/23**
Focus Rs plug PLTR6A-10G stock # 3587 super class(NGK comes factory in the FRS) :
14mm, 26.5mm reach, 5/8" hex, resistor, tapered seat, platinum electrodes, .040" gap