Spark Plug length issues for P1 & P2 Volvos
Prior to 2004, there was basically one length plug that fit in all FWD & AWD models. In late 2004, Volvo introduced a different cylinder head that was thicker between then combustion champer and the spark plug seat. . This difference means that these engines use different spark plugs and shorter ignition coil packs.
The thicker head appears on all P1 models and later P2 models (S60 T5, V70 T5, S60R & V70R models.) It also appears that the newer P3 (2007-) 6 cylinder engine uses the longer style plugs.
THESE SPARK PLUGS ARE NOT INTERCHANGEABLE
2001-2006 S60 Non-Turbo
2001-2007 V70 Non-Turbo
1999-2006 S80 5 & 6 CYL
2003-2006 XC90 5 & 6 CYL
2004-2007 S60 "R" (2.5T)
2004-2007 V70 "R" (2.5T)
2008-2011 XC70 6 CYL
2007-2011 S80 6 CYL
2007-2011 XC90 6 CYL
ipd carries Volvo OEM spark plug kits at and affordable price plus aftermarket spark plugs from a variety of manufacturers (Bosch, Denso, etc.)