HKS Super Fire Racing Spark Plug 50003-M40I
SKU: 4917579355

HKS Super Fire Racing Spark Plug 50003-M40I

Sale price$36.82 Regular price$40.91
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Description

HKS Super Fire Racing Spark Plug 50003-M40IM 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 # 8
Thread Size: 14mm × 19mm
Wrench Size: 16mm

Fits:

 

ACURA  INTEGRA  1.8  L4  B18B1  1993 - 1995  From 7/1993 Thru 9/1995 Production Date  DB7 Chassis  DOHC  Stock Plug/Heat Range: ISO:5
ACURA  INTEGRA  1.8  L4  B18C5  1997 - 2001  From 10/1995 Thru 7/2001 Production Date  DC2/DB8 Chassis  DOHC  VTEC  Stock Plug/Heat Range: ISO:7
ACURA  LEGEND  3.2  V6  C32A1  1990 - 1998  From 10/1990 Thru 3/1998 Production Date  KA7/KA8 Chassis    Stock Plug/Heat Range: ISO:6
ACURA  MDX  3.5  V6  J35A5  2003 - 2006  From 2/2003 Thru 7/2006 Production Date  YD1 Chassis  VTEC  Stock Plug/Heat Range: ISO:5
ACURA  NSX  3.0  V6  C30A1  1990 - 2005  From 9/1990 Thru 12/2005 Production Date  NA1 Chassis    Stock Plug/Heat Range: ISO:6
ACURA  NSX  3.2  V6  C32B1  1997 - 2005  From 2/1997 Thru 12/2005 Production Date  NA2 Chassis    Stock Plug/Heat Range: ISO:6
ACURA  RL  3.5  V6  C35A1  1996 - 2004  From 2/1996 Thru 9/2004 Production Date  KA9 Chassis    Stock Plug/Heat Range: ISO:5
ACURA  RL  3.5  V6  J35A8  2004 - 2014  From 10/2004 Thru 11/2014 Production Date  KB1 Chassis  VTEC  Stock Plug/Heat Range: ISO:6
ACURA  RSX  2.0  L4  K20A2  2002 - 2006  From 7/2001 Thru 2/2007 Production Date  DC5 Chassis  i-VTEC  Stock Plug/Heat Range: ISO:7
ACURA  VIGOR  2.5  L5  G25A1  1992 - 1995  From 1/1992 Thru 2/1995 Production Date  CC2 Chassis  PGM-FI  Stock Plug/Heat Range: ISO:6
AUDI  A3  2.0  ALL  ALL  2006 - 2007  From 7/2006 Thru 1/2007 Production Date  GH-8PBWA Chassis  Sportback TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A3  2.0  ALL  ALL  2007 - 2008  From 1/2007 Thru 9/2008 Production Date  ABA-8PBWA Chassis  Sportback TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4  1.8  ALL  ALL  1997 - 1999  From 10/1995 Thru 6/1999 Production Date  E-8DADR Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4  1.8  ALL  ALL  1999 - 1999  From 6/1999 Thru 9/1999 Production Date  GF-8DADR Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4  1.8  ALL  ALL  1999 - 2001  From 10/1999 Thru 5/2001 Production Date  GF-8DAPT Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4  1.8  ALL  ALL  2001 - 2006  From 5/2001 Thru 7/2006 Production Date  GH-8EBFB Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4  2.0  ALL  ALL  2005 - 2007  From 8/2002 Thru 10/2007 Production Date  GH-8EALT Chassis    Stock Plug/Heat Range: ISO:5
AUDI  A4  2.0  ALL  ALL  2007 - 2008  From 10/2007 Thru 3/2008 Production Date  ABA-8EALT Chassis    Stock Plug/Heat Range: ISO:5
AUDI  A4 QUATTRO  2.8  V6  ALL  1996 - 1999  From 10/1996 Thru 5/1999 Production Date  E-8DACKF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.8  V6  ALL  1996 - 1999  From 2/1996 Thru 5/1999 Production Date  E-8DAAHF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  1.8  ALL  ALL  1997 - 1999  From 2/1996 Thru 5/1999 Production Date  E-8DAEBF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  1.8  ALL  ALL  1999 - 2001  From 6/1999 Thru 10/2001 Production Date  GF-8DAPUF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  1.8  ALL  ALL  2001 - 2002  From 11/2001 Thru 8/2002 Production Date  GF-8EAMBF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  1.8  ALL  ALL  2002 - 2005  From 2/2002 Thru 1/2005 Production Date  GF/GH-8EAMBF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  1.8  ALL  ALL  2002 - 2005  From 8/2002 Thru 1/2005 Production Date  GH-8EAMBF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  3.0  ALL  ALL  2002 - 2005  From 2/2002 Thru 1/2005 Production Date  GF/GH-8EASNF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  3.0  ALL  ALL  2002 - 2005  From 6/2001 Thru 1/2005 Production Date  GF/GH-8EASNF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.0  ALL  ALL  2005 - 2006  From 2/2005 Thru 2/2006 Production Date  GH-8EBGBF Chassis  TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.0  ALL  ALL  2005 - 2006  From 2/2005 Thru 2/2006 Production Date  GH-8EBGBF Chassis  Wagon TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  3.2  ALL  ALL  2005 - 2007  From 2/2005 Production Date  GH-8EAUKF Chassis  FSI  Stock Plug/Heat Range: ISO:7
AUDI  A4 QUATTRO  3.2  ALL  ALL  2005 - 2007  From 2/2005 Thru 10/2007 Production Date  GH-8EAUKF Chassis  Wagon  Stock Plug/Heat Range: ISO:7
AUDI  A4 QUATTRO  2.0  ALL  ALL  2006 - 2007  From 3/2006 Thru 10/2007 Production Date  GH-8EBWEF Chassis  TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.0  ALL  ALL  2006 - 2007  From 3/2006 Thru 10/2007 Production Date  GH-8EBWEF Chassis  Wagon  TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.0  ALL  ALL  2007 - 2008  From 10/2007 Thru 3/2008 Production Date  ABA-8EBWEF Chassis  TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  2.0  ALL  ALL  2007 - 2008  From 10/2007 Thru 8/2008 Production Date  ABA-8EBWEF Chassis  Wagon  TFSI  Stock Plug/Heat Range: ISO:6
AUDI  A4 QUATTRO  3.2  ALL  ALL  2008 - 2008  From 8/2008 Production Date  ABA-8KCALF Chassis  Wagon  Stock Plug/Heat Range: ISO:7
AUDI  A6 QUATTRO  2.8  V6  ALL  1995 - 1996  From 10/1994 Thru 9/1996 Production Date  E-4AAAH/4AAAHF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.8  V6  ALL  1995 - 1996  From 11/1994 Thru 9/1996 Production Date  E-4AAAHF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.8  V6  ALL  1996 - 1999  From 10/1996 Thru 8/1999 Production Date  E-4AACKF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.8  V6  ALL  1996 - 1999  From 10/1996 Thru 8/1999 Production Date  E-4AACKF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.8  V6  ALL  1999 - 2001  From 9/1999 Thru 10/2001 Production Date  GF-4BAPRF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.8  V6  ALL  1999 - 2001  From 9/1999 Thru 10/2001 Production Date  GF-4BAPRF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.7  ALL  ALL  2001 - 2002  From 10/2001 Thru 8/2002 Production Date  GF-4BARES Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  2.7  ALL  ALL  2002 - 2004  From 9/2002 Thru 6/2004 Production Date  GF-4BBESS Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  3.0  ALL  ALL  2002 - 2004  From 10/2001 Thru 6/2004 Production Date  GF-4BASNF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  3.0  ALL  ALL  2002 - 2005  From 10/2001 Thru 5/2005 Production Date  GF-4BASNF Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  4.2  ALL  ALL  2004 - 2004  From 7/2004 Production Date  GH-4FBATS Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  3.2  ALL  ALL  2005 - 2006  From 7/2004 Thru 8/2006 Production Date  GH-4FAUKS Chassis  FSI  Stock Plug/Heat Range: ISO:7
AUDI  A6 QUATTRO  3.2  ALL  ALL  2005 - 2008  From 6/2005 Production Date  GH-4FAUKS Chassis  Wagon  Stock Plug/Heat Range: ISO:7
AUDI  A6 QUATTRO  4.2  ALL  ALL  2005 - 2011  From 6/2005 Production Date  GH-4FBATS Chassis  Wagon  Stock Plug/Heat Range: ISO:6
AUDI  A6 QUATTRO  3.2  ALL  ALL  2006 - 2008  From 8/2006 Thru 1/2009 Production Date  ABA-4FAUKS Chassis  FSI  Stock Plug/Heat Range: ISO:7
AUDI  A8 QUATTRO  4.2  ALL  ALL  1999 - 1999  From 8/1999 Production Date  GF-4DAQF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A8 QUATTRO  4.2  ALL  ALL  2000 - 2003  From 9/2000 Production Date  GF-4DAUW Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A8 QUATTRO  4.2  ALL  ALL  2003 - 2006  From 10/2003 Thru 7/2006 Production Date  GH-4EBFMF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A8 QUATTRO  4.2  ALL  ALL  2004 - 2006  From 9/2004 Thru 7/2006 Production Date  GH-4EBFML Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A8 QUATTRO  6.0  ALL  ALL  2005 - 2009  From 3/2005 Production Date  GH-4EBHTF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  A8 QUATTRO  6.0  ALL  ALL  2005 - 2009  From 3/2005 Production Date  GH-4EBHTIN Chassis    Stock Plug/Heat Range: ISO:6
AUDI  ALLROAD QUATTRO  2.7  ALL  ALL  2001 - 2002  From 2/2001 Thru 8/2002 Production Date  GF-4BAREF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  ALLROAD QUATTRO  2.7  ALL  ALL  2002 - 2004  From 9/2002 Thru 8/2004 Production Date  GH-4BBESF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  ALLROAD QUATTRO  4.2  ALL  ALL  2004 - 2005  From 10/2003 Thru 8/2004 Production Date  GH-4BBASF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  RS6  4.2  ALL  ALL  2003 - 2003  From 2/2003 Thru 7/2004 Production Date  GH-4BBCYF Chassis    Stock Plug/Heat Range: ISO:7
AUDI  S4  2.7  ALL  ALL  2000 - 2002  From 6/1999 Thru 8/2003 Production Date  GF-8DAGBF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  S6  2.2  L5  ALL  1995 - 1995  From 11/1994 Thru 7/2000 Production Date  E-4AAAN Chassis    Stock Plug/Heat Range: ISO:7
AUDI  S6  4.2  ALL  ALL  2002 - 2003  From 11/2001 Production Date  GF/GH-4BANKF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  S6  4.2  ALL  ALL  2002 - 2003  From 8/2000 Thru 10/2001 Production Date  GF-4BAQJF Chassis    Stock Plug/Heat Range: ISO:6
AUDI  S8  4.2  ALL  ALL  2001 - 2003  From 1/2001 Production Date  GF-4DAYS Chassis    Stock Plug/Heat Range: ISO:6
AUDI  TT  1.8  ALL  ALL  2001 - 2005  From 9/2001 Thru 10/2005 Production Date  GF/GH-8NAUQ Chassis  Roadster  Stock Plug/Heat Range: ISO:6
AUDI  TT  1.8  ALL  ALL  2001 - 2005  From 1/2001 Thru 10/2005 Production Date  GF/GH-8NAUQ Chassis  Coupe  Stock Plug/Heat Range: ISO:6
AUDI  TT  1.8  ALL  ALL  2005 - 2006  From 11/2005 Thru 6/2006 Production Date  GH-8NBVR Chassis  Roadster  Stock Plug/Heat Range: ISO:6
AUDI  TT  1.8  ALL  ALL  2005 - 2006  From 11/2005 Thru 6/2006 Production Date  GH-8NBVR Chassis  Coupe  Stock Plug/Heat Range: ISO:6
AUDI  TT  1.8  ALL  ALL  2005 - 2006  From 6/2005 Production Date  QUATTRO SPORTS Chassis    Stock Plug/Heat Range: ISO:6
AUDI  TT QUATTRO  1.8  ALL  ALL  2000 - 2000  From 10/1999 Thru 12/2000 Production Date  GF-8NAPXF Chassis  Coupe  Stock Plug/Heat Range: ISO:6
AUDI  TT QUATTRO  1.8  ALL  ALL  2000 - 2000  From 5/2000 Thru 12/2000 Production Date  GF-8NAPXF Chassis  Roadster  Stock Plug/Heat Range: ISO:6
AUDI  TT QUATTRO  1.8  ALL  ALL  2001 - 2003  From 1/2001 Thru 8/2003 Production Date  GF/GH-8NBAMF Chassis  Coupe  Stock Plug/Heat Range: ISO:6
AUDI  TT QUATTRO  1.8  ALL  ALL  2001 - 2003  From 1/2001 Thru 8/2003 Production Date  GF/GH-8NBAMF Chassis  Roadster  Stock Plug/Heat Range: ISO:6
BMW  318I  1.8  ALL  ALL  1991 - 1995  From 7/1991 Thru 6/1998 Production Date  E-CA18 Chassis    Stock Plug/Heat Range: ISO:6
BMW  318I  1.9  L4  ALL  1996 - 1998  From 7/1998 Thru 10/2001 Production Date  GF/GH-AL19 Chassis  Touring  Stock Plug/Heat Range: ISO:6
BMW  318IS  1.8  ALL  ALL  1993 - 1995  From 5/1993 Thru 7/1996 Production Date  E-BE18 Chassis    Stock Plug/Heat Range: ISO:6
BMW  318IS  1.9  L4  ALL  1996 - 1997  From 4/1996 Thru 12/1999 Production Date  E-BE19 Chassis    Stock Plug/Heat Range: ISO:6
BMW  318TI  1.8  ALL  ALL  1995 - 1995  From 2/1995 Thru 7/1996 Production Date  E-CG18 Chassis    Stock Plug/Heat Range: ISO:6
BMW  318TI  1.9  L4  ALL  1996 - 1999  From 81/1996 Thru 10/2001 Production Date  E-CG19 Chassis    Stock Plug/Heat Range: ISO:6
BMW  323I  2.5  ALL  ALL  1998 - 1998  From 9/1998 Production Date  GF-AM25 Chassis    Stock Plug/Heat Range: ISO:6
BMW  325I  2.5  ALL  ALL  1991 - 1991  From 5/1991 Production Date  E-CB25 Chassis    Stock Plug/Heat Range: ISO:6
BMW  325I  2.5  ALL  ALL  1993 - 1993  From 10/1993 Production Date  E-BJ25 Chassis    Stock Plug/Heat Range: ISO:6
BMW  325I  2.5  ALL  ALL  2001 - 2005  From 11/2000 Thru 3/2005 Production Date  GH-AV25 Chassis  Touring  Stock Plug/Heat Range: ISO:6
BMW  328CI  2.8  L6  ALL  2000 - 2000  From 6/1999 Production Date  GF-AM28 Chassis    Stock Plug/Heat Range: ISO:6
BMW  328I  2.8  L6  ALL  1996 - 1998  From 8/1995 Thru 6/1998 Production Date  E-BK28 Chassis  Cabriolet  Stock Plug/Heat Range: ISO:6
BMW  328I  2.8  L6  ALL  1996 - 1998  From 8/1995 Thru 6/1998 Production Date  E-CD28 Chassis  Coupe  Stock Plug/Heat Range: ISO:6
BMW  328I  2.8  L6  ALL  1998 - 1998  From 7/1998 Production Date  GF-AM28 Chassis    Stock Plug/Heat Range: ISO:6
BMW  328I  2.8  L6  ALL  2000 - 2000  From 1/2000 Production Date
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SKU: 4917579355

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Reina Turcios
Pawtucket, US
★★★★★ 5
My honest review
Lightweight Protection with No White Cast I am very satisfied with this sunscreen. The texture is lightweight, it absorbs quickly, and it truly leaves a "no-cast" finish—without that white layer that many sunblocks tend to leave behind. Plus, it feels hydrating thanks to the collagen, so it works beautifully under makeup or on its own for everyday wear. It offers excellent SPF 50+ PA++++ protection against UVA and UVB rays and leaves no greasy residue. The size is convenient for carrying in a bag or taking along on trips. After using it for several days, my skin feels protected, soft, and comfortable, even in hot weather. I would definitely buy it again and highly recommend it to anyone looking for a lightweight, hydrating sunscreen with a natural finish.
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Reviewed in the United States on May 16, 2026
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Mara Diaz
Lexington, US
★★★★★ 5
I'm impressed
I'm delighted with this sunscreen. It has a super light texture that absorbs quickly and does not leave a greasy feeling, which is perfect for everyday use, even under makeup. It fulfills what it promises: it does not leave white residue, something that I value very much, especially in photos or when going out in the sun. In addition, it feels quite moisturizing thanks to collagen and hyaluronic acid, leaving the skin soft and with a natural finish
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Reviewed in the United States on April 20, 2026
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Lize Guerin
Lake Worth, US
★★★★★ 5
Love it
This has become my everyday sunscreen and I genuinely love it. It’s lightweight, super hydrating, and doesn’t leave that greasy feeling most sunscreens do. It blends in beautifully and sits perfectly under makeup, which is a must for me. I also have sensitive skin and this hasn’t caused any irritation or breakouts at all. It just feels smooth, comfortable, and easy to wear daily. One of those products you actually look forward to using.
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Reviewed in the United States on May 3, 2026
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Amazon Customer
Dallas, US
★★★★★ 3
Don’t buy
All it did was moisturize and it’s super thing and just liquid. I highly doubt this is actually protecting my skin from the sun. Leaves no cast at all though
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Reviewed in the United States on April 26, 2026
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Kgg
Draper, US
★★★★★ 5
Lightweight No-Cast Collagen Sunscreen SPF 50+ PA++++ – Daily UVA & UVB Protection
This sunscreen offers reliable broad-spectrum protection with SPF 50+ and PA++++, helping shield the skin from harmful UVA and UVB rays. Its lightweight, moisturizing formula absorbs quickly without leaving a white cast, making it suitable for all skin tones. Infused with collagen, it helps keep the skin feeling soft and hydrated throughout the day. The non-greasy finish works well for daily use, leaving the skin with a natural, smooth appearance. A practical choice for anyone looking to combine sun protection with lightweight hydration in one step.
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Reviewed in the United States on May 31, 2026

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