NGK DR9EIX Iridium Spark Plug

Thread 12mm x hex 18mm x pitch 1.25mm
Ceramic resistor
Heat range 9
19mm (3/4") reach
0.6mm fine wire iridium centre electrode
0.7-0.8mm gap

Upgrade from the standard plug to NGK’s Iridium series for sharper performance and longer life. The ultra fine iridium centre electrode delivers a stronger, more consistent spark, improving throttle response, fuel efficiency, and cold starting. Iridium’s superior durability means less wear, longer service intervals, and reliable ignition even under extreme conditions. Key benefits over standard plugs:

Stronger spark for improved combustion and throttle response
Better fuel efficiency and smoother running
Easier cold starts
Longer lifespan thanks to iridium’s high melting point
Reduced misfires and consistent performance under load

Before You Place Your Order...

Note the image may not be exactly as item received and any slight difference will not be inferior or effect performance
Check the fitment list to ensure this item will fit your vehicle
When we refer to right or left, this is as you sit on your vehicle
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All parts and accessories are brand new and include VAT where applicable.
Most parts are pattern or aftermarket although some will be genuine but are not always stated as being so.
The use of motorcycle manufacturers' names is for reference purposes only. We do not imply that the products we sell are made by or with the permission of the names listed.

Bimota

Tesi 1D (851cc) 1991-92

Tesi 1D SR (904cc) 1991-92

Tesi SE (904cc) 1993-96

Ducati

851 SP 1988-91

851 Strada 1989-92

851 Strada Biposto 1990-92

888 Strada 1992-94

Honda

CB250 RSC (Electric Start) 1982

CB250 RSD (Electric Start) 1983

CB400 N Super Dream 1978-79

CB400 NA Super Dream 1979-81

CB400 NB Super Dream 1981-82

CB400 NC Super Dream 1982-84

CB400 T Dream 1978-80

CB750 F2C 1982

CB750 F2D 1983

CB750 FA 1980

CB750 FB 1981-82

CB750 FC 1982

CB750 FD 1983

CB900 F2C 1982

CB900 F2D 1983

CB900 FA 1980

CB900 FB 1981

CB900 FC 1982

CB900 FD 1983

CB900 FZ 1979

CM400 T 1979-81

FT500 Ascot 1982-85

Kawasaki

BJ250 A/B/C Estrella 1992-02

EN450 A LTD 1985-90

EN500 A Vulcan 1990-93

EN500 B Vulcan 1994-95

EN500 C Vulcan LTD 1996-09

ER-5 (ER500A) 1996-00

ER-5 (ER500C) 2001-07

GPX600 R (ZX600-C1) 1988

GPX600 R (ZX600-C10) 1997

GPX600 R (ZX600-C2) 1989

GPX600 R (ZX600-C3) 1990

GPX600 R (ZX600-C4) 1991

GPX600 R (ZX600-C5) 1992

GPX600 R (ZX600-C6) 1993

GPX600 R (ZX600-C7) 1994

GPX600 R (ZX600-C8) 1995

GPX600 R (ZX600-C9) 1996

GPX750 R (ZX750F) Ninja 1986-91

GPZ1000 RX (ZX1000A) 1985-89

GPZ500 S (EX500A) 1987-93

GPZ500 S (EX500D) 1994-09

GPZ500 S (EX500E) 1994-04

GPZ550 H 1982-84

GPZ600 R (ZX600-A) 1984, 1990

GPZ600 R (ZX600-A1) 1985

GPZ600 R (ZX600-A2) 1986

GPZ600 R (ZX600-A3) 1987

GPZ600 R (ZX600-A4/A4A) 1988

GPZ600 R (ZX600-A5/A5A) 1989

GPZ750 R (ZX750G) 1984-88

GPZ900 R (ZX900A) Ninja 1984-98

GT550 (Z550G) 1983-89, 1991-01

GT750 (Z750P) 1992-96

GTR1000 (ZG1000A) 1986-05

KLE500 A 1991-05

KLE500 B 2005-07

KLF185 A Bayou 1985-88

KLF220 A Bayou 1988-02

Z250 A1 (Twin) 1978-79

Z250 A2 (Twin) 1980

Z250 A3 (Twin) 1981-82

Z250 B (Twin) 1980-83

Z305 (KZ305A) CSR 1981-82

Z305 (KZ305B) CSR Belt 1982

Z305 (KZ305B) LTD 1987-88

Z550 (KZ550A) 1980-82

Z550 F (ZR550A) 1983-84

ZL1000 A Eliminator 1987-90

ZL600 B1 Eliminator 1995

ZL600 B2 Eliminator 1996

ZL600 B3 Eliminator 1997

ZR-7 (ZR750-F1) 1999

ZR-7 (ZR750-F2) 2000

ZR-7 (ZR750-F3) 2001

ZR-7 (ZR750-F4) 2002

ZR-7 (ZR750-F5) 2003

ZR-7 (ZR750-F6) 2004

ZR-7 S (ZR750-H1) 2001

ZR-7 S (ZR750-H2) 2002

ZR-7 S (ZR750-H3) 2003

ZR-7 S (ZR750-H4) 2004

ZR-7 S (ZR750-H5) 2005

ZR400 A (Z400F) 1983

ZR400 B (Z400F) 1984

ZR550 B Zephyr 1991-00

ZR750 C1 Zephyr 1991

ZR750 C2 Zephyr 1992

ZR750 C3 Zephyr 1993

ZR750 C4 Zephyr 1994

ZR750 C5 Zephyr 1995

ZR750 D1 Zephyr 1996

ZR750 D2 Zephyr 1997

KTM

450 Rally Factory Replica 2004

660 Rallye 2001-02

660 Rallye Factory Replica 2003-06

Laverda

500 Montjuic Mk1 1979-80

500 Montjuic Mk2 1981-83

Alpino 500 1977

Alpino 500 S 1978

Moto Guzzi

1000 V10 Centauro 1996-98

1000 V10 Centauro GT 1998-99

1000 V10 Centauro Sport 1998-99

Daytona 1000 1991-96

Daytona 1000 Racing 1996

Daytona 1000 RS 1997-98

Suzuki

GS1150 1984-86

GS250 T (4T) (Twin) 1980-81

GS300 L 1982-83, 1985

GS550 EF 1983-86

GS550 ES 1983-86

GS550 L (USA Custom) 1983, 1985-86

GSF1200 A Bandit (Naked) (ABS) 2006

GSF1200 Bandit (Naked) 1996-06

GSF1200 S Bandit (Half Faired) 1996-06

GSF1200 SA Bandit (Half Faired) (ABS) 1997, 2006

GSF1200 Z Bandit 2005

GSX1100 E 1984-86

GSX1100 EF 1984-86

GSX1100 ES 1984-86

GSX1100 F 1988-94

GSX1100 G (Shaft Drive) 1991-94

GSX1200 Inazuma 1998-02

GSX250 E 1980-83

GSX550 EF (Fully Faired) 1984-88

GSX550 ES (Half Faired) 1983-88

GSX600 F 1988-97

GSXR1100 G 1986

GSXR1100 H 1987

GSXR1100 J 1988

GSXR1100 K 1989

GSXR1100 L 1990

GSXR1100 M 1991

GSXR1100 N 1992

GSXR750 F 1985

GSXR750 G 1986

GSXR750 H 1987

GSXR750 R 1986

TU250 X 1997-00

XN85 Turbo (650cc) 1983-86

Yamaha

XS500 (Alloy Wheels) 1976-78

XZ550 1985-86

NGK DR9EIX Iridium Spark Plug