Genuine Honda O-Ring
This is a must if you are removing the water passage housing. Never re-use old o-rings.
#6 in illustration
FITMENT:
Most K20 engines: K20A2, K20A3, K20Z1, K20Z3, K23A1, K24A1, K24A2, K24A4, K24A8, K24Z1, K24Z2, K24Z3, K24Z6, K24Z7
F20C, F22C
2002-2006 Acura RSX
2000-2009 Honda S2000
2013-2015 Acura ILX
2007-2012 Acura RDX
2004-2014 Acura TSX
2003-2012 Honda Accord
2002-2015 Honda Civic Si
2002-2014 Honda CR-V
2012-2015 Honda Crosstour
2003-2011 Honda Element