NGK 6664 - Alternative spark plugs

There are 32 replacement spark plugs for NGK 6664. The cross references are for general reference only, please check for correct specifications and measurements for your application. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include Amazon Associates.

NGK 6664 on Amazon

NGK 6664-4PK BR7EIX Iridium IX Spark Plug, Pack of 4

28.33$

• NGK 6664 replacement spark plugs
• Autolite 4054  Buy from Amazon
• Autolite XS4064
• Bosch 0241245575
• Bosch W225S2S
• Bosch W5CS
• Brisk L15W
• Brisk L17W
• Champion N4G
• Champion OE195T10
• Dacia 7701366085
• Daihatsu 999-3403-6911-00
• Daihatsu 9993403691100
• Denso 3095
• Denso W22ES-GU
• Denso W22ES-ZU
• Denso W22ESGU
• Denso W22ESZU
• Eyquem 805LP
• Honda 98079-57614
• Honda 9807957614
• Honda 9807957874
• LEXUS 9009872036
• Magneti Marelli CWP8L
• PAL (Brisk) L15W
• Renault 7701366085
• Subaru 320541120
• Suzuki 9900079A3722E
• Suzuki 9900079A45B7E
• Toyota 9009872036
• Yamaha 9079320001
• Yamaha 9089078108
• Yamaha 9470300065

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Applications of NGK 6664

Brand	Model	Engine size	HP	KW	Year	Engine	# of cyl	Spark plug gap
ABARTH	850 OT, 1000 OT, 1000 OTS						4	0.7
ALFA ROMEO	164 12V	3			06.1987 -09.1993	06410, 06412	6	0.7
ALFA ROMEO	1900 TI, 1900 C	1.9			1954 - 1955		4	0.7
ALFA ROMEO	1900 Super Sprint, Super TI	1.9			1956 - 1958		4	0.7
ALFA ROMEO	Alfa 90 i. Super	2.5	150	110	10.1984 -12.1990	AR016.46-019.11 cat	6	0.7
ALFA ROMEO	Giulia Spider Berline, (101.23)	1.6			1958 - 1962		4	0.7
ALFA ROMEO	Giulietta Sprint				1956 - 1958		4	0.7
ALFA ROMEO	GTV 2000 Typ105	2	133	98	1972 -		4	0.7
ALFA ROMEO	Montreal	2.6	195	144	1970 - 1977	V8	8	0.7
ALFA ROMEO	Spider 1300 Junior	1.3					4	0.7
ALFA ROMEO	Spider	1.6	90	66	1962 - 1966		4	0.7
ALFA ROMEO	Spider 1600 (Duetto)	1.6	109	80	06.1966 - 1967	0.536	4	0.7
ALFA ROMEO	Spider / I / Q.V.	2	130	94	04.1971 -12.1989	AR005.15	4	0.7
ALFA ROMEO	Spider 2.0	2	133	98	04.1971 -12.1989		4	0.7
ALFA ROMEO	Sprint Veloce, Sprint Special				1958 -		4	0.7
AUDI	Audi 60	1.5	54	40	02.1968 - 1972		4	0.7
AUDI	Audi 72	1.7	72	53	09.1965 - 1968		4	0.7
AUDI	75 L	1.7	75	55	12.1968 - 1972		4	0.7
AUDI	80 / 80 L	1.7	80	59	09.1966 - 1968		4	0.7
BMW	2600	2.6	101	74	1962 - 1963		8	0.7
BMW	2600 L	2.6	110	81	1962 - 1963		8	0.7
BMW	3.2 ab Motornr. 30644	3.2	120	88	-1961		8	0.7
BMW	3.2 Super ab Motornr. 30644	3.2	140	103	-1961		8	0.7
BMW	3200 CS	3.2			1962 - 1965		8	0.7
BMW	3200 L	3.2	140	103	1961 -		8	0.7
BMW	3200 S	3.2	160	118	1961 - 1964		8	0.7
BMW	501/6	2.1	72	53	1956 - 1958		6	0.7
BMW	501/8 ab Motornr. 14074	2.6	101	74	-1961		8	0.7
FIAT	850	0.85	34	25	1964 - 1974		4	0.7
FIAT	850 Super	0.85	37	27	1964 - 1974		4	0.7
LANCIA	Flaminia Pinin Farina	2.5			1962 - 1963	823.02	6	0.7
LANCIA	Flaminia	2.8			1963 - 1970	826	6	0.7
LANCIA	Flaminia	2.8			1963 - 1967	826.03	6	0.7
LANCIA	Flaminia	2.8			1963 - 1965	826.1	6	0.7
LANCIA	Flaminia	2.8			1964 - 1967	826.2	6	0.7
LANCIA	Flavia Berlina 1.5 1. Serie	1.5			1960 - 1963	815	4	0.7
LANCIA	Fulvia Coup? Rallye 1.3 HF 1. Serie	1.3			1967 - 1969	818.342	4	0.7
NSU	1000 TT	1.1	55	40	09.1965 - 1967		4	0.7
NSU	1200C	1.2	54	40	09.1969 -11.1971		4	0.7
NSU	Prinz 1000	1	43	32	1964 - 1967		4	0.7
NSU	Prinz 30E	0.6	30	22	1959 - 1962		2	0.7
NSU	Prinz 4	0.6	30	22	09.1961 - 1973		2	0.7
NSU	Sport-Prinz Bertone	0.6	30	22	1959 - 1962		2	0.7
NSU	Typ 110	1.1	53	39	09.1965 - 1967		4	0.7
PANHARD	24B / 24C (service dur)	0.85			1964 -	M8N	2	0.7
PANHARD	24BT / 24CT	0.85			1964 -	M8S	2	0.7
PANHARD	24CT	0.85			1965 -	M10S	2	0.7
PANHARD	Dyna Z / D65/PL 17 (service dur)	0.85	42	31		M5	2	0.7
PANHARD	Dyna Z / PL 17	0.85	50	37		Tigre	2	0.7
PANHARD	PL 17 (service dur)	0.85	50	37	1959 -	M6	2	0.7
PANHARD	PL 17	0.85	60	44	1959 -	Tigre B	2	0.7
A.J	16 C	350			1959 - 1964		1	0.5
A.J	18 Statesman	500			1945 - 1966		1	0.5
A.J	31	650			1959 - 1966		2	0.5
A.J	33	750			1965 - 1968		2	0.5
A.J	33 CSR	750			1965 - 1968		2	0.5
ARIEL	Arrow 200	200			1958 - 1965		1	0.8
ARIEL	Arrow 250	250			1958 - 1965		1	0.8
B.S.A.	Bantam 175, Bushman	175					1	0.5
B.S.A.	Bantam D10,14,14/4,14/5	175					1	0.5
B.S.A.	D10	175			1966 - 1967		1	0.5
B.S.A.	D14 Bantam	175			1968 - 1969		1	0.5
B.S.A.	D175 Bantam	175			1969 - 1971		1	0.5
B.S.A.	D175 Bushman	175			1969 - 1971		1	0.5
B.S.A.	B32 Alu Head	348			1946 - 1957		1	0.5
B.S.A.	B40 SS90	350			1962 - 1965		1	0.5
B.S.A.	B44	441			1966 - 1970		1	0.5
B.S.A.	A50	498			1962 - 1970		2	0.5
B.S.A.	B50 Gold Star	499			1971 - 1973		1	0.5
B.S.A.	B50 SS	499			1971 - 1973		1	0.5
B.S.A.	B50 SS Gold Star	499			1971 - 1972		1	0.5
B.S.A.	B50 T Victor	499			1971 - 1973		1	0.5
B.S.A.	A7 SS	500			1954 - 1962		2	0.5
B.S.A.	A10 RGS	646			1957 - 1963		2	0.5
B.S.A.	A10 RR	646			1957 - 1963		2	0.5
B.S.A.	A10 SR	646			1957 - 1963		2	0.5
BENELLI	Magnum 3V	50					1	0.5
BENELLI	125-2C Twin	125					2	0.5
BENELLI	2C, 2CE, Sport Speciale	250					1	0.5
BETA	EVO 125 2T	125			2008 -		1	0.6
BETA	REV 3 (Italy)	125					1	0.6
BETA	EVO 200 2T	200			2008 -		1	0.6
BETA	REV 3 O	200					1	0.6
BETA	EVO 250 2T	250			2008 -		1	0.6
BETA	REV 3 O	270					1	0.6
BETA	EVO 290 2T	290			2008 -		1	0.6
BULTACO	Sherpa S	200					1	0.5
CARABELA	Coyote MX	100					1	0.6
CARABELA	Marquesa Enduro	100					1	0.6
CARABELA	Marquesa Mini MX	100					1	0.6
CARABELA	Coyote MX	125					1	0.6
CARABELA	Torero Flat Track	450					1	0.6
CPI	Supercross 50	50			2003 -		1	0.8
CPI	Supermoto 50	50			2003 -		1	0.8
GILERA	50 TS	50			1979 - 1982		1	0.5
GILERA	GR 2 (Export)	50					1	0.5
GILERA	Touring	50			1973 - 1981		1	0.5
GILERA	Trial	50					1	0.5
GILERA	Jubilee	90					1	0.5
GILERA	125 GR1	125			1976 - 1981		1	0.5
GILERA	125 TG1	125			1976 - 1981		1	0.5
HARLEY-DAVIDSON	SX 125	125			1974 - 1975		1	0.5
HERCULES	ZX 1	50					1	0.5
KAWASAKI	KD 80	80			1980 - 1981		1	0.7
KAWASAKI	KH 80	80			1981 - 1982		1	0.8
KAWASAKI	KE 175	175			1981 - 1981		1	0.8
KAWASAKI	KL 250	250			1979 - 1983		1	0.8
KAWASAKI	KLX 250	250			1980 - 1984		1	0.8
KAWASAKI	LX 250	250			2009 - 2011		1	0.8
KAWASAKI	Z 250	250			1980 - 1980		2	0.8
KAWASAKI	Z 250 C	250			1980 - 1982		1	0.8
KAWASAKI	Z 250 G	250			1980 - 1984		1	0.8
KAWASAKI	Z 400	400			1976 - 1981		2	0.8
KAWASAKI	Z 400 B	400			1978 - 1980		2	0.8
KAWASAKI	Z 400 G	400			1979 - 1979		2	0.8
KAWASAKI	Z 440	440			1980 - 1985		2	0.8
KAWASAKI	Z 650 B	650			1977 - 1980		4	0.8
KAWASAKI	Z 650 C	650			1977 - 1980		4	0.8
KAWASAKI	Z 650 SR	650			1979 - 1980		4	0.8
KTM	250 EXC Enduro Competition	250			2003 -		1	0.6
KTM	250 EXC Six Days	250			2010 -		1	0.8
KTM	250 EXC (E-Starter)	250			2010 -		1	0.8
KTM	250 EXC	250			2010 -		1	0.8
KTM	250 MXC	250			2004 -		1	0.6
KTM	250 XC	250			2010 -		1	0.8
KTM	250 XC-W	250			2010 -		1	0.8
KTM	300 EXC Enduro Competition	300			2003 -		1	0.6
KTM	300 EXC	300			2010 -		1	0.8
KTM	300 EXC Sixt Days	300			2010 -		1	0.8
KTM	300 MXC	300			2003 -		1	0.6
KTM	300 XC	300			2010 -		1	0.8
KTM	300 XC-W	300			2010 -		1	0.8
LAMBRETTA	125,Lince,Linea,SX	125					1	0.5
LAMBRETTA	150 GP	150					1	0.5
LAMBRETTA	Spezial 150	150					1	0.5
LAMBRETTA	200 GP	200					1	0.5
LAMBRETTA	200,Jet,Lince,Mensa-Expres	200					1	0.5
LAMBRETTA	Pony,SX	200					1	0.5
MALAGUTI	Dune Enduro 75	75					1	0.5
MALAGUTI	RST 75 Turismo	75					1	0.5
MATCHLESS	G3C	350			1960 - 1964		1	0.5
MATCHLESS	G80	500			1945 - 1966		1	0.5
MATCHLESS	G12	650			1959 - 1966		2	0.5
MINARELLI	P4CS, CSA, P4R	50					1	0.5
MINARELLI	P6CS, CSA, P6R	50					1	0.5
MINARELLI	RV4,A	50					1	0.5
MONDIAL	Spezial V4 Record	50					1	0.5
MONTESA	Cota 74 /74T /80	75					1	0.5
MONTESA	Crono 75	75					1	0.5
MONTESA	Enduro 75 H6 /H7/ L	75					1	0.5
MONTESA	Cota 172/200	175					1	0.5
MONTESA	Crono 350	350					1	0.5
MONTESA	Enduro 360 H6/H7/H7S/L	350					1	0.5
MOTO GUZZI	Nibbio	50			1975 - 1976		1	0.5
MOTO GUZZI	V 35 II	350			1980 - 1987		2	0.5
MOTO GUZZI	V 35 Imola	350			1979 - 1987		2	0.5
MV AGUSTA	750 S American	750					4	0.5
OSSA	160 GT-T2	160					1	0.5
RIEJU	Drac/Water),RS-1,RV 50	50					1	0.5
SACHS	ZX 1	50					1	0.5
SACHS	W 2000	294					1	0.5
SUZUKI	DS 80	80			1993 - 1994		1	0.7
SUZUKI	JR 80 K2	80			2002 -		1	0.8
SUZUKI	TS 80 ERX	80					1	0.8
SUZUKI	GT 750	750					3	0.5
TRIUMPH	Trophy TR6 Nr.029364 ?>	650			1955 - 1973		2	0.5
YAMAHA	AG 100 H / E	100					1	0.8
YAMAHA	AG 100 F 3HA...	100			2007 - 2009		1	0.8
YAMAHA	DT 100	100					1	0.8
YAMAHA	DT 100 C	100					1	0.8
YAMAHA	DT 100 X	100					1	0.8
YAMAHA	MX 100	100			1979 -		1	0.8
YAMAHA	MX 100 H	100					1	0.8
YAMAHA	RT 100 E / F	100			1993 -		1	0.8
YAMAHA	TY 125 1K6	125			1977 - 1981		1	0.7
YAMAHA	AG 175 H	175					1	0.8
YAMAHA	TY 175	175					1	0.8
YAMAHA	TY 175 E	175					1	0.8
YAMAHA	TY 175 J	175					1	0.8
YAMAHA	RS 195	195					1	0.8
YAMAHA	NR 200	200					1	0.8
YAMAHA	RD 200 19,0mm 397	200					1	0.7
YAMAHA	TY 250 3BA	250			1988 - 1990		1	0.8
YAMAHA	TY 250 S16	250			1975 - 1979		1	0.8
YAMAHA	XJ 750	750			- 1983		4	0.7
YAMAHA	XJ 750 RH	750					4	0.7
YAMAHA	XS 750 1T5	750			1977 - 1979		3	0.7
YAMAHA	XS 750 C	750					3	0.7
YAMAHA	XS 750 D	750					3	0.7
YAMAHA	XS 750 E	750					3	0.7
YAMAHA	XS 750 S	750					3	0.7
YAMAHA	XS 750 SE	750					3	0.7
YAMAHA	XS 750 T	750					3	0.7
YAMAHA	XTS 750 SE	750					2	0.7
YAMAHA	XV 750	750			- 1983		2	0.7
YAMAHA	XV 750 SE 5G5	750			1981 - 1982		2	0.7
ZUNDAPP	KS 50 19.0 mm Gewindelange	50					1	0.5