The denso iridium spark plug for peugeot 103 25 sp 1992-1995 is part of the latest collection from denso.Features: six times harder than platinum, iridium withstands temperatures up to 4,000â f because the iridium electrodes of these plugs can be shrunk to only 0.4Mm, voltage requirements decrease while firing performance improves 360â laser welding of electrode provides a seal that resists wear even in the worst conditions ground electrode features a tapered cut and u-groove that form a large volume area for the flame's center specifications: center electrode projection: non-projected center electrode type: fine wire electrical resistance: 5k ohms electrode tip material: iridium ground electrode shape: grooved taper cut heat range: 24 hex size imperial: 13 16 hex size metric: 20.6 Mm hex size: 20.6 Mm 13 16 model: iwf24 product name: spark plug research value: finalized to fit: aprilia area 51 50 1998 european models aprilia area 51 50 1999 european models aprilia area 51 50 2000 european models aprilia area 51 50 2001 european models aprilia area 51 50 2002 european models aprilia gulliver 50 lc 1996 european models aprilia gulliver 50 lc 1997 european models aprilia gulliver 50 lc 1998 european models aprilia gulliver 50 lc 1999 european models aprilia habana 50 custom 1999 european models aprilia habana 50 custom 2000 european models aprilia habana 50 custom 2001 european models aprilia habana 50 1999 european models aprilia habana 50 2000 european models aprilia haba...