HKS Super Fire Racing Spark Plug 50003-M45G
SKU: 76065567214

HKS Super Fire Racing Spark Plug 50003-M45G

$34.78 $38.64
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Description

HKS Super Fire Racing Spark Plug 50003-M45GM Series Super Fire Spark Plugs HKS M Series spark plugs are high performance Iridium plugs designed to provide improved ignition performance, durability and anti carbon build up. 0. 6mm Iridium Alloy Center Electrode Outer Electrode with Platinum Chip Short Type Outer Electrode (Anti Vibration) Thermal Edge Spark Support Gap M Series is recommended for reliable ignition, durability and anti carbon buildup under high load. The Iridium alloy is used

M-Series Super Fire Spark Plugs

HKS M-Series spark plugs are high performance Iridium plugs designed to provide improved ignition performance, durability and anti-carbon build-up.

  • 0.6mm Iridium Alloy Center Electrode
  • Outer Electrode with Platinum Chip
  • Short Type Outer Electrode (Anti-Vibration)
  • Thermal Edge
  • Spark Support Gap

M Series is recommended for reliable ignition, durability and anti-carbon buildup under high load.

The Iridium alloy is used because of its durability and reliability.  On an average plug, a narrow core typically shortens life span of plug but with the intense durability of iridium there is no sacrifice in any longevity.  With a high melting point of 2454 degrees C, opposed to the 1769 degrees C of white gold, the electrode can tolerate the high levels of compression and minor knocking without any deterioration. A nickel coating on the housing also prevents the spark plug from premature deterioration.  The Iridium plugs are available for multiple applications and offered in "colder" heat ranges of 7 and up and specifically for rotary, heat ranges of 9 and up are offered.

Heat Range: NGK # 9
Thread Size: 14mm × 19mm
Wrench Size: 20.8mm

Fits:

1985 - 1989 HONDA ACCORD L4 1.8 ALL From 6/1985 Thru 9/1989 Production Date  CA1 Chassis  Stock Plug/Heat Range: LONG:5
1987 - 1989 HONDA ACCORD L4 2.0 ALL From 5/1987 Thru 9/1989 Production Date  CA5 Chassis  Stock Plug/Heat Range: LONG:5
1988 - 1989 HONDA ACCORD ALL 2.0 A20A3 From 4/1988 Thru 9/1989 Production Date  CA6 Chassis  Stock Plug/Heat Range: LONG:5
1982 - 1987 HONDA PRELUDE L4 1.8 ALL From 11/1982 Thru 4/1987 Production Date  AB83 Chassis  Stock Plug/Heat Range: LONG:6
1983 - 1987 MAZDA 626 L4 2.0 ALL From 10/1983 Thru 2/1987 Production Date  GCEP Chassis  Stock Plug/Heat Range: LONG:6
1993 - 1997 MITSUBISHI DIAMANTE ALL 3.0 6G72 From 1/1993 Thru 1/1997 Production Date  K45 Chassis  Wagon SOHC  Stock Plug/Heat Range: LONG:6
1990 - 1995 MITSUBISHI ECLIPSE ALL 2.0 4G63 From 2/1990 Thru 6/1995 Production Date  D22A Chassis  DOHC  Stock Plug/Heat Range: LONG:6
1990 - 1995 MITSUBISHI ECLIPSE ALL 2.0 4G63 From 2/1990 Thru 6/1995 Production Date  D27A Chassis  Stock Plug/Heat Range: LONG:6
1995 - 1999 MITSUBISHI ECLIPSE ALL 2.0 4G63 From 6/1995 Thru 8/1999 Production Date  D32A Chassis  Stock Plug/Heat Range: LONG:6
1997 - 1999 MITSUBISHI ECLIPSE ALL 2.0 4G63 From 3/1997 Thru 8/1999 Production Date  D38A Chassis  Stock Plug/Heat Range: LONG:6
1992 - 1992 MITSUBISHI LANCER ALL 2.0 4G63 From 10/1991 Thru 1/1994 Production Date  CD9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1993 - 1994 MITSUBISHI LANCER ALL 2.0 4G63 From 1/1994 Thru 9/1994 Production Date  CE9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1995 - 1995 MITSUBISHI LANCER ALL 2.0 4G63 From 9/1994 Thru 8/1996 Production Date  CE9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1996 - 1996 MITSUBISHI LANCER ALL 2.0 4G63 From 8/1996 Thru 12/1997 Production Date  CN9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
2003 - 2005 MITSUBISHI LANCER ALL 2.0 4G63 From 2/2004 Thru 2/2005 Production Date  CT9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1997 - 1998 MITSUBISHI LANCER ALL 2.0 4G63 From 1/1998 Thru 12/1998 Production Date  CP9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1999 - 2000 MITSUBISHI LANCER ALL 2.0 4G63 From 1/1999 Thru 1/2001 Production Date  CP9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1999 - 2000 MITSUBISHI LANCER ALL 2.0 4G63 From 1/2000 Thru 1/2001 Production Date  CP9A Chassis  Tommi Makinen Edition DOHC  Stock Plug/Heat Range: LONG:7
2001 - 2002 MITSUBISHI LANCER ALL 2.0 4G63 From 2/2001 Thru 3/2002 Production Date  CT9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
2003 - 2005 MITSUBISHI LANCER ALL 2.0 4G63 From 2/2003 Thru 1/2004 Production Date  CT9A Chassis  DOHC  Stock Plug/Heat Range: LONG:7
1988 - 1991 MITSUBISHI MONTERO V6 3.0 ALL From 9/1988 Thru 1/1991 Production Date  L141/146GW Chassis  Stock Plug/Heat Range: LONG:5
1988 - 1990 MITSUBISHI STARION ALL 2.6 ALL From 5/1988 Thru 10/1990 Production Date  A187A Chassis  Stock Plug/Heat Range: LONG:7
1985 - 1988 SUBARU JUSTY L3 1.2 ALL From 10/1985 Thru 10/1988 Production Date  KA7/KA8 Chassis  Stock Plug/Heat Range: LONG:6
1988 - 1994 SUBARU JUSTY L3 1.2 ALL From 11/1988 Thru 3/1994 Production Date  KA7/KA8 Chassis  Stock Plug/Heat Range: LONG:6
1983 - 1986 TOYOTA CELICA L6 2.8 5MGE From 8/1983 Thru 2/1986 Production Date  MA61 Chassis  Stock Plug/Heat Range: LONG:5
1988 - 1992 TOYOTA LAND CRUISER ALL 4.0 3FE From 8/1988 Thru 8/1992 Production Date  FJ62G/FJ80G Chassis  Stock Plug/Heat Range: LONG:5
1987 - 1990 TOYOTA TERCEL ALL 1.5 3E;3EE From 5/1986 Thru 9/1990 Production Date  EL31 Chassis  Stock Plug/Heat Range: LONG:5
1989 - 1992 VOLKSWAGEN GOLF ALL 1.8 RV From 10/1989 Thru 3/1992 Production Date  E-19RV Chassis  Stock Plug/Heat Range: LONG:6
1989 - 1992 VOLKSWAGEN JETTA ALL 1.8 ALL From 10/1989 Thru 11/1991 Production Date  E-16RV Chassis  Stock Plug/Heat Range: LONG:6
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76065567214

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M
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Michael
Phoenix, US
★★★★★ 5
Comfortable dress shoe.
Size: 7, Color: Brown Napa Leather
Finally a comfortable dress shoe. It's both comfortable to walk in and looks and wears like a more traditional dress shoes for the office.
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Reviewed in the United States on May 6, 2026
L
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Larry
Cuba, US
★★★★★ 5
Good value for the money.
Size: 9.5 Wide, Color: Beige
Comfortable right out of the box. Great style and well made. The more you wear the softer they get but maintain their overall appearance.
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Reviewed in the United States on May 25, 2026
A
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Amazon Customer
Whiting, US
★★★★★ 5
Very good quality for a reasonable price.
Size: 10, Color: Grey
Very good quality, very soft, very comfortable, look amazing, I’m very happy.
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Reviewed in the United States on May 23, 2026
M
Verified Purchase
Mike L.
Grantham, US
★★★★★ 4
Comfortable fit for slip-in fabric shoes
Size: 14, Color: Black/Black
My first experience with Marc Joseph. I typically purchase dress and casual work shoes from Florsheim and occasionally Rockport. I'm giving these four stars because the initial fit and feel appear solid. Depending on the shoe brand I wear a size 14 or 15. My feet are slightly wide but I don't alway need wide fit. These size 14 fit well with wide enough toe box. I've tried slip in shoes before and they just don't feel right. These somehow work and there is no heel slip. My only reservation is the high lip on the heel for slip-in and hope they dont catch pant hems. I gave 4 stars because I'll have to determine durability. Granted they are a light fabric shoe with a soft rubber tread. I'd like them to last for at least 6 months..and use them for business casual work wear during warm weather.
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Reviewed in the United States on May 19, 2026
C
Verified Purchase
Chris
Chelsea, US
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
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Reviewed in the United States on May 10, 2026

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