Passenger Cars and Commercial Vehicles

ROVER

25 (RF)

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.4 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20
1.6 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20
1.8 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20

45 (RT)

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.4 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20
1.6 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20
1.8 i 16V  DOHC K16 10/1999 on PK20PR11 1.0 IK20 VK20
2 i V6 24V  DOHC KV6 10/1999 to PK20PR11 1.0 IK20 VK20

75 (RJ)

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.8 i 16V  DOHC K16 2/1999 on PK20PR11 1.0 IK20 VK20
1.8 i 16V Turbo  DOHC K16 5/2003 on PK20PR11 1.0 IK20 VK20
2 i V6 24V  DOHC KV6 2/1999 on PK20PR11 1.0 IK20 VK20
2.5 i V6 24V  DOHC KV6 2/1999 on PK20PR11 1.0 IK20 VK20

3500

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
3.5 V8  1968 to 1971 W20FPU 0.7 IWF20
3.5 V8  1972 to 1976 W20FPU 0.6 IWF20

2000 / SD1

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
2   10/1982 to 12/1986 T20EPU 0.6 IT20 VT20

2300 / SD1

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
2.3   6/1976 to 10/1986 T16EPRU 0.6 IT16 VT16

2600 / SD1

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
2.6   12C / 13C 6/1976 to 10/1986 T16EPRU 0.6 IT16 VT16

3500 / SD1

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
3.5 V8  6/1976 to 10/1986 W16EPU 0.8 IW16 VW16
3.5 V8  10/1982 to 10/1986 W16EPRU 0.7 IW16 VW16
3.5 V8  10/1982 to 12/1986 W20EPU 0.9 IW20 VW20
3.5 V8 i Vitesse Injection  10/1982 to 12/1986 W20EPU 0.9 IW20 VW20

100

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.1 111 / 111i / 111 i Cabrio  Kseries 5/1990 on K20PRU 0.8 IK20 VK20
1.4 114 / i 16V / GTi 16V  Kseries 5/1990 on K20PRU 0.8 IK20 VK20

200

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.1 211 i  Kseries K20PRU 0.8 IK20 VK20
1.3 213  EV / EV2 3/1984 to 9/1989 W20EPRU11 1.0 IW20 VW20
1.4 214 / i / i16V / Si 16V  K16 (DOHC) 10/1989 to 1999 K20PRU 0.8 IK20 VK20
1.6 216 Sseries Q20PRU 0.9 IQ20 VQ20
1.6 216 i 16V Cabrio  DOHC 5/1982 to 2000 Q20PRU11 1.1 IQ20 VQ20
1.6 216 i 16V  DOHC 9/1990 to 2000 Q20PRU11 1.1 IQ20 VQ20
1.6 216 i 16V  D16A (HondaPMG) 10/1989 to 1996 Q20PRU11 1.1 IQ20 VQ20
1.6 216 i 16V  Kseries 2/1996 to 2000 K20PRU 0.8 IK20 VK20
1.8 218 i 16V  Kseries VVC 1996 to 1998 PK20PRP8 0.9 VK20Y
1.8 218 i 16V  Kseries VVC 1998 to 2000 PK20PR11 1.0 IK20 VK20
2 220 GTi  T 16 1/1993 to 2000 K20PRU 0.8 IK20 VK20
2 220 i Turbo  T 16 1/1993 to 2000 K20PRU 0.8 IK20 VK20
2 220 GTi 16V  20 M 4 (DOHCT 16.4) 9/1991 to 2000 K20PRU 0.8 IK20 VK20

400

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.4 GSi  K 16 4/1990 to 3/2000 Q20PRU 0.9 IQ20 VQ20
1.4 GSi 16V  DOHCK 16 1/1993 to 4/1995 Q20PRU 0.9 IQ20 VQ20
1.4 Si / SLi   Kseries 4/1995 to 3/2000 K20PRU 0.9 IK20 VK20
1.6 GSi 16V  D16A9 (DOHC) (Honda) 4/1990 to 3/2000 Q20PRU11 1.1 IQ20 VQ20
1.6 GTi 16V  DOHC 4/1990 to 3/2000 Q20PRU11 1.1 IQ20 VQ20
1.6 GSi   Kseries 4/1995 to 3/2000 K20PRU 0.9 IK20 VK20
1.8 i 16V  Kseries 4/1995 to 3/2000 K20PRU 0.9 IK20 VK20
2 Turbo  T 16 1/1993 to 3/2000 K20PRU 0.8 IK20 VK20
2 GTi 16V  DOHC M16 4V 2/1992 to 3/2000 K20PRU 0.9 IK20 VK20

600

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.8 i / Si  F 18 A3 1996 to 2001 KJ20CRL11 1.1 IK20 VK20
2 Ti / Turbo  1994 to 2001 K20PRU 0.9 IK20 VK20
2 i / Si  F 20 Z1 / F 20 Z2 8/1993 to 3/1996 KJ20CRL11 1.1 IK20 VK20
2.3 Si  H 23 A2 8/1993 to 3/2000 KJ20CRL11 1.1 IK20 VK20

800

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
2.0 (1) 820  20HDM8 (SOHC, Carb.) 1998 to 1990 W20EPRU 0.8 IW20 VW20
2.0 (1) 820 i / SE  M 16 E 10/1986 to 1992 K20PRU 0.8 IK20 VK20
2.0 (1) 820 i / Si  M 16 i 10/1986 to 1992 K20PRU 0.8 IK20 VK20
2.0 (1) 820 i 16V Turbo  M16 Engine (Turbo) 1991 to 1992 K20PRU 0.8 IK20 VK20
2.0 (2) 820 i 16V  T 16 1/1992 to 2001 K20PRU 0.8 IK20 VK20
2.0 (2) 820 i 16V Turbo  T16 Engine (Turbo) 1/1992 to 2001 K20PRU 0.8 IK20 VK20
2.5 (1) 825 / i V6 / Sterling  V6 C 25 A 10/1986 to 12/1991 Q20PRU11 1.1 IQ20 VQ20
2.5 (2) 825 i V6 Si  V6 2.5 K4F 1/1996 to 2001 Q20PRU11 1.1 IQ20 VQ20
2.7 (1) 827 / i V6 24V Si / Sterling  V6 C 27 A 2/1988 to 12/1991 Q20PRU11 1.1 IQ20 VQ20
2.7 (2) 827 i V6 24V Si / Sterling  V6 C 27 A 1/1992 to 2001 Q20PRU11 1.1 IQ20 VQ20

City Rover

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.4 i 16V  1/2004 on Q20PRU 0.9 IK20 VQ20

Maestro

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.3 A Plus  9/1988 to 1992 W20EPU 0.9 IW20 VW20
1.6 R’ Single Carb.  3/1983 to 10/1984 W20EPU 0.9 IW20 VW20
1.6 R’ Twin Carb.  3/1983 to 10/1984 W22EPU 0.9 IW22 VW22
1.6 ‘S’  10/1984 to 1992 Q20PU 0.8 IK20 VQ20
2 .. / i  10/1984 to 1992 W20EPRU 0.8 IW20 VW20

Metro

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1   Aseries 1989 to 1990 W20EPRU 0.8 IW16 VW20
1.1   Kseries 5/1990 on K20PRU 0.8 IK20 VK20
1.3   Aseries 1989 to 1990 W20EPRU 0.8 IW20 VW20
1.3 MG Turbo  Aseries 1982 to 1990 W22EPRU 0.9 IW22 VW22
1.3 MG Turbo  Oseries 5/1990 on W20EPRU 0.8 IW20 VW20
1.4 .. / i 16V / GTi  Kseries 5/1990 on K20PRU 0.8 IK20 VK20

Montego

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
1.3   Aseries 4/1984 to 1989 W20EPRU 0.8 IW20 VW20
1.6 Estate  Sseries 9/1988 on Q20PRU 0.8 IK20 VQ20
2 + MGI Estate   Oseries EFI 1984 to 1989 W22EPRU 0.8 IW22 VW22
2 MG  Oseries Turbo 1985 on W22EPRU 0.8 IW22 VW22
2 i (Estate)  9/1988 on W20EPRU 0.8 IW20 VW20
  Oseries 9/1988 on W20EPRU11 1.0 IW20 VW20

Land Rover

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
Defender 2.5   8/1990 on W20EPU 0.8 IW20 VW20
Defender 3.5 i V8   OHV V8 8/1990 on W16EPRU 0.9 IW16 VW16
Defender 3.9 i V8   OHV V8 1991 on W16EPRU 0.9 IW16 VW16
Discovery 2 i  20 (T4) 1993 on K20PRU 0.8 IK20 VK20
Discovery 3.5 V8  (Carb.) 9/1989 to 9/1990 W20EPRU 0.8 IW20 VW20
Discovery 3.5 i V8  22D 9/1989 on W16EPRU 0.8 IW16 VW16
Discovery 3.9 i V8  9/1989 to 8/1984 W16EPRU 0.9 IW16 VW16
Discovery 3.9 i V8  8/1994 on W16EPRU 0.9 IW16 VW16
Discovery 4 i V8  6/1994 to 1999 W16EPRU 0.9 IW16 VW16
Discovery 4 i V8  40 D (V8) (Thor) 1999 on PK16PR11 1.0 IK16
Discovery 4 i V6 24V  (FORD V6) 10/2004 on PT16EPRL13 1.3 IT16 VT16
Discovery 4.4 i V8 32V  (JAGUAR V8) 10/2004 on SK16PRA11 1.0 IK16
Freelander 1.8 i 16V  18 KV 4 2/1998 on PK20PRL11 1.1 IK20 VK20
Freelander 2.5 i V6  25K4F 9/2000 on PK20PRL11 1.1 IK20 VK20
Landrover 2.3   9/1963 to 8/1983 W16EPU 0.8 IW16 VW16
Landrover 2.3   9/1983 to 12/1986 T20EPU 0.6 IT20 VT20
Landrover 2.5   9/1983 to 7/1990 W20EPU 0.8 IW20 VW20
Landrover 2.6   9/1967 to 3/1982 W16ESU 0.8 IW16
Landrover 3.5 V8  9/1983 to 7/1990 W20EPU 0.8 IW20 VW20

Range Rover

Model Engine Year Standard Plug Gap (mm) Iridium Power Iridium Tough
3.5 (1) V8  (Short reach 1/2” , 12.7mm) 1970 to 1976 W16FPU 0.7 IWF16
3.5 (1) V8  6/1970 to 7/1981 W16EPU 0.6 IW16 VW16
3.5 (1) V8  8/1981 to 9/1990 W20EPU 0.8 IW20 VW20
3.5 (1) i V8  23D / 24D / 25D (EFI) 10/1985 to 9/1990 W20EPRU 0.8 IW20 VW20
3.5 (1) i V8  23D / 24D / 25D (EFI) 1/1987 to 9/1990 W16EPRU 0.9 IW16 VW16
3.9 (1) i V8   37D / 38D (AT) 1987 to 1994 W16EPRU 0.9 IW16 VW16
3.9 (1) i V8   35 D / 36 D (AT) 1987 to 1994 W16EPRU 0.9 IW16 VW16
3.9 (2 LP) i V8  42 D (V8) 7/1994 on W16EPRU 0.9 IW16 VW16
4.0 (2 LP) i .. / SE  40 D (V8) 7/1994 on W16EPRU 0.9 IW16 VW16
4.0 (2 LP) i .. / SE  40 D (V8) (Thor) 1999 on PK16PR11 1.0 IK16 VK16
4.2 (1) i V8   40D / 42 D 1992 to 1994 W16EPRU 0.9 IW16 VW16
4.2 (2 LP) i  42 D (V8) 7/1994 on W16EPRU 0.9 IW16 VW16
4.4 (3 LM) i V8  M 62 B44 3/2002 on K20TXR 0.9 IK20 VK20
4.6 (2 LP) i .. / HSE  46 D (V8) 7/1994 to 1999 W16EPRU 0.9 IW16 VW16
4.6 (2 LP) i .. / HSE  46 D (V8) (Thor) 1999 on PK16PR11 1.0 IK16 VK16

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