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DENSO Spark Plugs - U-Groove AUDI

Brand: DENSO | Category: Spark Plugs

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Fitments

AUDI
More Information Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
Click For More Info 1989 - 1989 100 ALL L5 2.3 N NF GAS w/ B Engine VIN;
Click For More Info 1990 - 1991 100 ALL L5 2.3 N NF GAS w/ C Engine VIN;
Click For More Info 1992 - 1994 100 ALL V6 2.8 N AAH GAS w/ K Engine VIN;
Click For More Info 1994 - 1994 100 ALL V6 2.8 N AAH GAS w/ J Engine VIN;
Click For More Info 1989 - 1989 100 QUATTRO ALL L5 2.3 N NF GAS w/ B Engine VIN;
Click For More Info 1990 - 1991 100 QUATTRO ALL L5 2.3 N NF GAS w/ C Engine VIN;
Click For More Info 1992 - 1994 100 QUATTRO ALL V6 2.8 N AAH GAS w/ K Engine VIN;
Click For More Info 1970 - 1971 100 SERIES ALL L4 1.8 N ZT GAS
Click For More Info 1970 - 1971 100 SERIES ALL L4 1.8 N ZY GAS
Click For More Info 1972 - 1972 100 SERIES ALL L4 1.9 N ZK GAS
Click For More Info 1972 - 1973 100 SERIES ALL L4 1.9 N ZL GAS
Click For More Info 1973 - 1973 100 SERIES ALL L4 1.9 N ZW GAS
Click For More Info 1974 - 1974 100 SERIES ALL L4 1.9 N XT GAS
Click For More Info 1974 - 1974 100 SERIES ALL L4 1.9 N XU GAS
Click For More Info 1974 - 1974 100 SERIES ALL L4 1.9 N ZG GAS
Click For More Info 1974 - 1974 100 SERIES ALL L4 1.9 N ZH GAS
Click For More Info 1975 - 1975 100 SERIES ALL L4 1.9 N YA GAS
Click For More Info 1975 - 1975 100 SERIES ALL L4 1.9 N YB GAS
Click For More Info 1975 - 1977 100 SERIES ALL L4 1.9 N YC GAS
Click For More Info 1975 - 1977 100 SERIES ALL L4 1.9 N YD GAS
Click For More Info 1989 - 1989 200 ALL L5 2.2 T MC GAS w/ C Engine VIN;
Click For More Info 1990 - 1991 200 ALL L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1989 - 1989 200 QUATTRO ALL L5 2.2 T MC GAS w/ C Engine VIN;
Click For More Info 1990 - 1990 200 QUATTRO ALL L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1991 - 1991 200 QUATTRO 20V L5 2.2 T 3B GAS w/ E Engine VIN;
Click For More Info 1991 - 1991 200 QUATTRO 20V AVANT L5 2.2 T 3B GAS w/ E Engine VIN;
Click For More Info 1991 - 1991 200 QUATTRO AVANT L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1991 - 1991 200 QUATTRO BASE L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1980 - 1980 4000 ALL L4 1.6 N YG GAS
Click For More Info 1980 - 1980 4000 ALL L4 1.6 N YH GAS
Click For More Info 1980 - 1980 4000 ALL L5 2.2 N WE GAS
Click For More Info 1981 - 1983 4000 ALL L4 1.7 N WT GAS w/ A Engine VIN;
Click For More Info 1981 - 1984 4000 ALL L5 2.2 N WE GAS w/ B Engine VIN;
Click For More Info 1984 - 1984 4000 ALL L4 1.8 N JN GAS w/ A Engine VIN;
Click For More Info 1985 - 1986 4000 ALL L4 1.8 N MG GAS w/ B Engine VIN;
Click For More Info 1987 - 1987 4000 ALL L4 1.8 N MG GAS w/ B Engine VIN;
Click For More Info 1984 - 1985 4000 QUATTRO ALL L5 2.2 N JT GAS w/ B Engine VIN;
Click For More Info 1986 - 1987 4000 QUATTRO ALL L5 2.2 N JT GAS w/ B Engine VIN;
Click For More Info 1978 - 1980 5000 ALL L5 2.2 N WD GAS
Click For More Info 1978 - 1980 5000 ALL L5 2.2 N WE GAS
Click For More Info 1980 - 1980 5000 ALL L5 2.2 T WK GAS
Click For More Info 1981 - 1983 5000 ALL L5 2.2 N WD GAS w/ B Engine VIN;
Click For More Info 1981 - 1983 5000 ALL L5 2.2 N WE GAS w/ B Engine VIN;
Click For More Info 1981 - 1983 5000 ALL L5 2.2 T WK GAS w/ C Engine VIN;
Click For More Info 1984 - 1984 5000 S L5 2.2 N WU GAS w/ A Engine VIN;
Click For More Info 1984 - 1984 5000 S TURBO L5 2.2 T KH GAS w/ C Engine VIN;
Click For More Info 1985 - 1985 5000 CS TURBO L5 2.2 T KH GAS w/ C Engine VIN;
Click For More Info 1985 - 1987 5000 S L5 2.2 N KZ GAS w/ B Engine VIN;
Click For More Info 1986 - 1986 5000 CS L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1987 - 1987 5000 ALL L5 2.2 T MC GAS w/ E Engine VIN;
Click For More Info 1987 - 1988 5000 ALL L5 2.3 N NF GAS w/ B Engine VIN;
Click For More Info 1987 - 1988 5000 ALL L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1986 - 1988 5000 QUATTRO ALL L5 2.2 T MC GAS w/ D Engine VIN;
Click For More Info 1987 - 1988 5000 QUATTRO ALL L5 2.3 N NF GAS w/ B Engine VIN;
Click For More Info 1988 - 1990 80 ALL L4 2.0 N 3A GAS w/ B Engine VIN;
Click For More Info 1990 - 1990 80 ALL L4 2.0 N 3A GAS w/ A Engine VIN;
Click For More Info 1991 - 1992 80 ALL L5 2.3 N NG GAS w/ C Engine VIN;
Click For More Info 1988 - 1992 80 QUATTRO ALL L5 2.3 N NG GAS w/ C Engine VIN;
Click For More Info 1990 - 1992 80 QUATTRO ALL L5 2.3 N NG GAS w/ D Engine VIN;
Click For More Info 1988 - 1988 90 ALL L4 2.0 N 3A GAS w/ B Engine VIN;
Click For More Info 1988 - 1991 90 ALL L5 2.3 N NG GAS w/ C Engine VIN;
Click For More Info 1989 - 1989 90 ALL L5 2.3 N NG GAS
Click For More Info 1990 - 1991 90 ALL L5 2.3 N NG GAS w/ D Engine VIN;
Click For More Info 1993 - 1995 90 ALL V6 2.8 N AAH GAS
Click For More Info 1994 - 1995 90 ALL V6 2.8 N AFC GAS
Click For More Info 1988 - 1989 90 QUATTRO ALL L5 2.3 N NG GAS w/ C Engine VIN;
Click For More Info 1990 - 1991 90 QUATTRO ALL L5 2.3 N 7A GAS w/ E Engine VIN;
Click For More Info 1993 - 1994 90 QUATTRO ALL V6 2.8 N AAH GAS
Click For More Info 1995 - 1995 90 QUATTRO ALL V6 2.8 N AFC GAS
Click For More Info 2006 - 2008 A3 ALL L4 2.0 T BPY GAS w/ F Engine VIN;
Click For More Info 2009 - 2010 A3 ALL L4 2.0 T CBFA GAS
Click For More Info 2009 - 2010 A3 ALL L4 2.0 T CCTA GAS
Click For More Info 2006 - 2007 A3 QUATTRO ALL V6 3.2 N BUB GAS
Click For More Info 1996 - 1997 A4 ALL V6 2.8 N AFC GAS w/ A Engine VIN;
Click For More Info 1997 - 1997 A4 ALL V6 2.8 N AHA GAS w/ A Engine VIN;
Click For More Info 1997 - 1999 A4 ALL L4 1.8 T AEB GAS w/ B Engine VIN;
Click For More Info 1998 - 1999 A4 ALL V6 2.8 N AHA GAS w/ D Engine VIN;
Click For More Info 2000 - 2000 A4 ALL L4 1.8 T ATW GAS w/ C Engine VIN;
Click For More Info 2000 - 2001 A4 ALL V6 2.8 N ATQ GAS w/ H Engine VIN;
Click For More Info 2001 - 2001 A4 ALL L4 1.8 T AWM GAS w/ C Engine VIN;
Click For More Info 2002 - 2002 A4 ALL L4 1.8 T AMB GAS w/ C Engine VIN;
Click For More Info 2002 - 2004 A4 ALL V6 3.0 N ALL GAS w/ T Engine VIN;
Click For More Info 2003 - 2004 A4 ALL L4 1.8 T AMB GAS w/ C Engine VIN;
Click For More Info 2005 - 2005 A4 ALL L4 1.8 T AMB GAS
Click For More Info 2005 - 2005 A4 ALL V6 3.0 N BGN GAS
Click For More Info 2005 - 2006 A4 BASE L4 2.0 T BPG GAS w/ F Engine VIN;
Click For More Info 2006 - 2006 A4 CABRIOLET L4 1.8 T AMB GAS
Click For More Info 2007 - 2007 A4 ALL L4 2.0 T BWT GAS
Click For More Info 2008 - 2008 A4 BASE L4 2.0 T BWT GAS
Click For More Info 2008 - 2009 A4 CABRIOLET L4 2.0 T BWT GAS
Click For More Info 2009 - 2010 A4 ALL L4 2.0 T CAEB GAS
Click For More Info 1996 - 1997 A4 QUATTRO ALL V6 2.8 N AFC GAS w/ A Engine VIN;
Click For More Info 1997 - 1999 A4 QUATTRO ALL L4 1.8 T AEB GAS w/ B Engine VIN;
Click For More Info 1998 - 1998 A4 QUATTRO AVANT V6 2.8 N AHA GAS w/ D Engine VIN;
Click For More Info 1998 - 1998 A4 QUATTRO BASE L4 1.8 T AEB GAS w/ B Engine VIN;
Click For More Info 1999 - 1999 A4 QUATTRO ALL V6 2.8 N AHA GAS w/ D Engine VIN;
Click For More Info 2000 - 2000 A4 QUATTRO ALL L4 1.8 T ATW GAS w/ C Engine VIN;
Click For More Info 2000 - 2000 A4 QUATTRO BASE L4 1.8 T AEB GAS w/ B Engine VIN;
Click For More Info 2000 - 2001 A4 QUATTRO ALL V6 2.8 N ATQ GAS w/ H Engine VIN;
Click For More Info 2001 - 2001 A4 QUATTRO ALL L4 1.8 T AWM GAS w/ C Engine VIN;
Click For More Info 2002 - 2002 A4 QUATTRO AVANT L4 1.8 T AMB GAS w/ C Engine VIN;
Click For More Info 2002 - 2002 A4 QUATTRO BASE L4 1.8 T AMB GAS w/ C Engine VIN;
Click For More Info 2002 - 2004 A4 QUATTRO ALL V6 3.0 N ALL GAS w/ T Engine VIN;
Click For More Info 2003 - 2004 A4 QUATTRO ALL L4 1.8 T AMB GAS w/ C Engine VIN;
Click For More Info 2005 - 2005 A4 QUATTRO ALL V6 3.0 N BGN GAS
Click For More Info 2005 - 2005 A4 QUATTRO AVANT L4 1.8 T AMB GAS
Click For More Info 2005 - 2005 A4 QUATTRO BASE L4 1.8 T AMB GAS
Click For More Info 2005 - 2006 A4 QUATTRO AVANT L4 2.0 T BPG GAS w/ F Engine VIN;
Click For More Info 2005 - 2006 A4 QUATTRO BASE L4 2.0 T BPG GAS w/ F Engine VIN;
Click For More Info 2006 - 2006 A4 QUATTRO CABRIOLET V6 3.0 N BGN GAS
Click For More Info 2007 - 2007 A4 QUATTRO ALL L4 2.0 T BWT GAS
Click For More Info 2008 - 2008 A4 QUATTRO AVANT L4 2.0 T BWT GAS
Click For More Info 2008 - 2008 A4 QUATTRO BASE L4 2.0 T BWT GAS
Click For More Info 2008 - 2009 A4 QUATTRO CABRIOLET L4 2.0 T BWT GAS
Click For More Info 2009 - 2009 A4 QUATTRO ALL V6 3.2 N CALA GAS
Click For More Info 2009 - 2011 A4 QUATTRO ALL L4 2.0 T CAEB GAS
Click For More Info 2010 - 2010 A4 QUATTRO AVANT L4 2.0 T CAEB GAS
Click For More Info 2008 - 2010 A5 QUATTRO ALL V6 3.2 N CALA GAS
Click For More Info 1995 - 1995 A6 ALL V6 2.8 N AAH GAS w/ B Engine VIN;
Click For More Info 1995 - 1997 A6 ALL V6 2.8 N AFC GAS w/ A Engine VIN;
Click For More Info 1998 - 1999 A6 ALL V6 2.8 N AHA GAS w/ A Engine VIN;
Click For More Info 2000 - 2001 A6 ALL V6 2.8 N ATQ GAS w/ H Engine VIN;
Click For More Info 2002 - 2004 A6 ALL V6 3.0 N ALL GAS w/ T Engine VIN;
Click For More Info 1995 - 1997 A6 QUATTRO ALL V6 2.8 N AFC GAS w/ A Engine VIN;
Click For More Info 1996 - 1997 A6 QUATTRO ALL V6 2.8 N AFC GAS w/ C Engine VIN;
Click For More Info 1998 - 1998 A6 QUATTRO ALL V6 2.8 N AFC GAS
Click For More Info 1998 - 1998 A6 QUATTRO ALL V6 2.8 N AHA GAS
Click For More Info 1999 - 1999 A6 QUATTRO ALL V6 2.8 N AHA GAS w/ A Engine VIN;
Click For More Info 2000 - 2000 A6 QUATTRO BASE V8 4.2 N ART GAS w/ L Engine VIN;
Click For More Info 2000 - 2001 A6 QUATTRO ALL V6 2.8 N ATQ GAS w/ H Engine VIN;
Click For More Info 2000 - 2001 A6 QUATTRO BASE V6 2.7 T APB GAS w/ D Engine VIN;
Click For More Info 2001 - 2004 A6 QUATTRO BASE V8 4.2 N AWN GAS w/ L Engine VIN;
Click For More Info 2002 - 2002 A6 QUATTRO ALL V6 2.7 T APB GAS w/ D Engine VIN;
Click For More Info 2002 - 2004 A6 QUATTRO ALL V6 3.0 N ALL GAS w/ T Engine VIN;
Click For More Info 2003 - 2004 A6 QUATTRO BASE V6 2.7 T BEL GAS w/ D Engine VIN;
Click For More Info 2005 - 2005 A6 QUATTRO ALL V8 4.2 N BNK GAS
Click For More Info 2006 - 2006 A6 QUATTRO BASE V8 4.2 N BNK GAS
Click For More Info 2009 - 2009 A6 QUATTRO AVANT V6 3.0 S CAJA GAS
Click For More Info 2009 - 2009 A6 QUATTRO AVANT V6 3.0 S CCAA GAS
Click For More Info 2010 - 2010 A6 QUATTRO ALL V6 3.0 S CCAA GAS
Click For More Info 2011 - 2011 A6 QUATTRO BASE V8 4.2 N BVJ GAS
Click For More Info 1997 - 1999 A8 ALL V8 3.7 N AEW GAS w/ F Engine VIN;
Click For More Info 1997 - 1999 A8 QUATTRO ALL V8 4.2 N ABZ GAS w/ G Engine VIN;
Click For More Info 2000 - 2003 A8 QUATTRO ALL V8 4.2 N AKB GAS w/ L Engine VIN;
Click For More Info 2001 - 2003 A8 QUATTRO ALL V8 4.2 N AUX GAS w/ L Engine VIN;
Click For More Info 2004 - 2005 A8 QUATTRO ALL V8 4.2 N BFM GAS
Click For More Info 2005 - 2005 A8 QUATTRO L W12 6.0 N BSB GAS
Click For More Info 2006 - 2006 A8 QUATTRO ALL W12 6.0 N BSB GAS
Click For More Info 2006 - 2006 A8 QUATTRO ALL V8 4.2 N BGK GAS
Click For More Info 2007 - 2009 A8 QUATTRO L W12 6.0 N BSB GAS
Click For More Info 2011 - 2012 A8 QUATTRO BASE V8 4.2 N CDRA GAS
Click For More Info 2011 - 2012 A8 QUATTRO L V8 4.2 N CDRA GAS
Click For More Info 2001 - 2001 ALLROAD QUATTRO ALL V6 2.7 T APB GAS w/ P Engine VIN;
Click For More Info 2002 - 2002 ALLROAD QUATTRO ALL V6 2.7 T APB GAS w/ D Engine VIN;
Click For More Info 2003 - 2004 ALLROAD QUATTRO ALL V6 2.7 T BEL GAS w/ D Engine VIN;
Click For More Info 2003 - 2005 ALLROAD QUATTRO ALL V8 4.2 N BAS GAS
Click For More Info 2005 - 2005 ALLROAD QUATTRO ALL V6 2.7 T BEL GAS
Click For More Info 1994 - 1994 CABRIOLET ALL V6 2.8 N AAH GAS w/ L Engine VIN;
Click For More Info 1995 - 1995 CABRIOLET ALL V6 2.8 N AFC GAS w/ L Engine VIN;
Click For More Info 1995 - 1998 CABRIOLET ALL V6 2.8 N AFC GAS w/ A Engine VIN;
Click For More Info 1981 - 1984 COUPE ALL L5 2.2 N WE GAS w/ B Engine VIN;
Click For More Info 1984 - 1984 COUPE ALL L5 2.2 N KX GAS w/ A Engine VIN;
Click For More Info 1984 - 1987 COUPE ALL L5 2.2 N KX GAS w/ D Engine VIN;
Click For More Info 1987 - 1987 COUPE ALL L5 2.3 N NG GAS w/ C Engine VIN;
Click For More Info 1987 - 1987 COUPE ALL L5 2.2 N KX GAS w/ E Engine VIN;
Click For More Info 1990 - 1991 COUPE QUATTRO 20V L5 2.3 N 7A GAS w/ E Engine VIN;
Click For More Info 1973 - 1973 FOX ALL L4 1.5 N ZD GAS
Click For More Info 1973 - 1973 FOX ALL L4 1.5 N ZE GAS
Click For More Info 1974 - 1974 FOX ALL L4 1.5 N XV GAS
Click For More Info 1974 - 1974 FOX ALL L4 1.5 N XW GAS
Click For More Info 1974 - 1974 FOX ALL L4 1.5 N XY GAS
Click For More Info 1974 - 1974 FOX ALL L4 1.5 N XZ GAS
Click For More Info 1975 - 1976 FOX ALL L4 1.6 N YG GAS
Click For More Info 1975 - 1976 FOX ALL L4 1.6 N YH GAS
Click For More Info 1976 - 1976 FOX ALL L4 1.6 N YK GAS
Click For More Info 1977 - 1979 FOX ALL L4 1.6 N YG GAS
Click For More Info 1977 - 1979 FOX ALL L4 1.6 N YH GAS
Click For More Info 2009 - 2010 Q5 PREMIUM V6 3.2 N CALB GAS
Click For More Info 2009 - 2010 Q5 PREMIUM PLUS V6 3.2 N CALB GAS
Click For More Info 2009 - 2010 Q5 PRESTIGE V6 3.2 N CALB GAS
Click For More Info 1983 - 1985 QUATTRO ALL L5 2.2 T WX GAS w/ C Engine VIN;
Click For More Info 2010 - 2010 R8 ALL V10 5.2 N BUJ GAS
Click For More Info 2011 - 2012 R8 SPYDER V8 4.2 N CNDA GAS
Click For More Info 2003 - 2003 RS6 ALL V8 4.2 T BCY GAS
Click For More Info 1992 - 1993 S4 ALL L5 2.2 T AAN GAS w/ P Engine VIN;
Click For More Info 1992 - 1994 S4 ALL L5 2.2 T AAN GAS w/ R Engine VIN;
Click For More Info 2000 - 2001 S4 ALL V6 2.7 T APB GAS w/ D Engine VIN;
Click For More Info 2002 - 2002 S4 ALL V6 2.7 T APB GAS w/ D Engine VIN;
Click For More Info 2004 - 2006 S4 ALL V8 4.2 N BHF GAS
Click For More Info 2007 - 2008 S4 AVANT V8 4.2 N BHF GAS
Click For More Info 2007 - 2008 S4 BASE V8 4.2 N BHF GAS
Click For More Info 2007 - 2009 S4 CABRIOLET V8 4.2 N BHF GAS
Click For More Info 2010 - 2010 S4 ALL V6 3.0 S CCBA GAS
Click For More Info 2008 - 2008 S5 ALL V8 4.2 N CAUA GAS
Click For More Info 2010 - 2010 S5 CABRIOLET V6 3.0 S CAKA GAS
Click For More Info 2011 - 2012 S5 BASE V8 4.2 N CAUA GAS
Click For More Info 1995 - 1995 S6 ALL L5 2.2 T AAN GAS w/ A Engine VIN;
Click For More Info 2002 - 2003 S6 ALL V8 4.2 N BBD GAS w/ U Engine VIN;
Click For More Info 2011 - 2011 S6 BASE V10 5.2 N BXA GAS
Click For More Info 2001 - 2001 S8 ALL V8 4.2 N ALL GAS w/ U Engine VIN;
Click For More Info 2002 - 2002 S8 ALL V8 4.2 N AYS GAS w/ U Engine VIN;
Click For More Info 2003 - 2003 S8 ALL V8 4.2 N AYS GAS
Click For More Info 1970 - 1972 SUPER 90 ALL L4 1.8 N ALL GAS
Click For More Info 2000 - 2000 TT ALL L4 1.8 T ATC GAS w/ C Engine VIN;
Click For More Info 2001 - 2001 TT ALL L4 1.8 T ATC GAS w/ C Engine VIN;
Click For More Info 2001 - 2002 TT ALL L4 1.8 T AWP GAS w/ X Engine VIN;
Click For More Info 2001 - 2004 TT ALL L4 1.8 T AWP GAS w/ C Engine VIN;
Click For More Info 2005 - 2006 TT ALL L4 1.8 T AWP GAS
Click For More Info 2008 - 2009 TT ALL L4 2.0 T BPY GAS
Click For More Info 2000 - 2000 TT QUATTRO ALL L4 1.8 T ATC GAS w/ C Engine VIN;
Click For More Info 2001 - 2002 TT QUATTRO ALL L4 1.8 T AWP GAS w/ C Engine VIN;
Click For More Info 2001 - 2002 TT QUATTRO ALL L4 1.8 T AMU GAS w/ T Engine VIN;
Click For More Info 2001 - 2002 TT QUATTRO ALL L4 1.8 T AWP GAS w/ X Engine VIN;
Click For More Info 2003 - 2005 TT QUATTRO ALL L4 1.8 T BEA GAS
Click For More Info 2004 - 2006 TT QUATTRO ALL V6 3.2 N BHE GAS
Click For More Info 2006 - 2006 TT QUATTRO BASE L4 1.8 T BEA GAS
Click For More Info 2009 - 2010 TT QUATTRO ALL L4 2.0 T CCTA GAS
Click For More Info 1990 - 1991 V8 QUATTRO ALL V8 3.6 N PT GAS w/ E Engine VIN;
Click For More Info 1992 - 1994 V8 QUATTRO ALL V8 4.2 N ABH GAS w/ W Engine VIN;

Product Description

The U-Groove is Engineered for Greater Fuel Efficiency and Improved Throttle Response

DENSO’s patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the U shape. The ball of fire created in the U-Groove develops a larger and hotter flash front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures.

Even DENSO’s “standard” spark plug is something special. The innovative design that helped to make DENSO spark plugs famous, the U-Groove plug employs a unique, channeled ground electrode designed to generate a larger spark nucleus at the point of ignition. Greater spark energy than ordinary plugs means improved flame travel, producing more complete, consistent, and efficient combustion.

Spark plugs are not all alike. With the world-famous DENSO U-Groove spark plug it’s easy to see, thanks to its patented U-shaped ground electrode. The U-Groove forms a channel for the spark nucleus to form at the instant of ignition, limiting quenching to generate a more potent spark. The premium features don’t stop there: DENSO’s distinctive five-rib insulator in purified alumina prevents leakage and flashover, while dual internal copper-glass seals and a copper-core center electrode with nickel-alloy tip assure reliable spark delivery. To keep your engine running smoothly, its spark plugs must fire 25 times a second or more. If just one spark plug skips a beat you’ll know it instantly, with rough running, poor acceleration, and reduced fuel economy. DENSO U-groove spark plugs combine dependable performance and superior value.

FEATURES

  • 100 percent pre-fired to ensure reliable operation
  • Copper core center electrode for superior thermal conductivity
  • Unique five-rib insulator reduces flashover

BENEFITS

  • Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
  • Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
  • Wide range of part numbers for thousands of applications, including classic and collector cars

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