SKU: 18257657724

HKS Super Fire Racing Spark Plug 50003-M40LF

$38.85 $43.17
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  • USA
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

HKS Super Fire Racing Spark Plug 50003-M40LFM 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 × 25mm
Wrench Size: 16mm

Fits:

2006 - 2009 MAZDA 3 L4 2.0 ALL From 6/2006 Thru 6/2009 Production Date  BKEP Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2006 - 2009 MAZDA 3 L4 2.3 ALL From 6/2006 Thru 6/2009 Production Date  BK3P Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2009 - 2011 MAZDA 3 L4 2.0 ALL From 6/2009 Thru 8/2011 Production Date  BLEFP Chassis  Stock Plug/Heat Range: Conical Long Reach:6
2009 - 2013 MAZDA 3 L4 2.0 ALL From 6/2009 Thru 11/2013 Production Date  BLEAP Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2007 - 2009 MAZDA 3 L4 2.3 MZR From 6/2006 Thru 6/2009 Production Date  BK3P Chassis  Stock Plug/Heat Range: Conical Long Reach:6
2009 - 2013 MAZDA 3 L4 2.3 MZR From 6/2009 Thru 11/2013 Production Date  BL3FW Chassis  Stock Plug/Heat Range: Conical Long Reach:6
2005 - 2007 MAZDA 6 L4 2.3 ALL From 6/2005 Thru 12/2007 Production Date  GG3P Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2008 - 2012 MAZDA 6 L4 2.5 ALL From 1/2008 Thru 11/2012 Production Date  GH5FP/GH5AP Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2006 - 2007 MAZDA 6 L4 2.3 MZR From 6/2005 Thru 12/2007 Production Date  GG3P Chassis  Stock Plug/Heat Range: Conical Long Reach:6
2007 - 2011 MAZDA CX-7 L4 2.3 MZR From 12/2006 Thru 12/2011 Production Date  ER3P Chassis  Stock Plug/Heat Range: Conical Long Reach:5
2006 - 2014 MAZDA MX-5 MIATA L4 2.0 ALL From 8/2005 Production Date  NCEC Chassis  Stock Plug/Heat Range: Conical Long Reach: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: 18257657724

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4.2 ★★★★★
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Verified Purchase
Renee G. McGee
Charlottesville, US
★★★★★ 5
Fits perfect
Color: Black
Love this cover! It really does adhere to the fridge like the ad says. It shipped fast too. Love the stand on it too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
S
Verified Purchase
Susu
Belleville, US
★★★★★ 5
It’s a great value
Color: Black
My son is very happy with this iPad case. It fits perfectly, provides great protection against scratches and minor drops, and feels durable and well-made. The stand feature is very convenient for watching videos, reading, or working. It also has a sleek design and doesn’t add much extra weight to the device.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
W
Verified Purchase
William Kasimer
Birmingham, US
★★★★★ 5
Great case for iPad
Color: Black
I saw a similar Zugu case for my iPad and almost bought it, but it looked like my iPad might not fit, so I hunted and found this VIKESI case, which cost about 1/3 as much as the Zugu. It's close to perfect. My iPad fits perfectly, and the almost infinite number of angles that it permits, along with magnets to hold it in place make it ideal for working on a desk or in my lap. The only minor downside is that it's on the heavy side, probably because of the magnets. But unless you're travelling with it (I've switched to a small Fire tablet for travel), that won't be an issue. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
S
Verified Purchase
S. Sirico
West Palm Beach, US
★★★★★ 5
ipad cover
Color: Rose
love it. light but durable. like how it can be hinged from either side horizontally. no can do vertically. great bargain and colorful, got pink, the stylus holders perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
L
Verified Purchase
L Shavonne
Chelsea, US
★★★★★ 5
The magnet does not stick to the refrigerator as advertised.. UPDATE ( I love it and it does stick)
Color: Pink
Although it is a nice case, it seems sturdy and it is very beautiful, my main reason for purchasewas I loved the fact that it sticked to the refrigerator. I was very disappointed to see that it does not. It’s too heavy, and it immediately begins to slide. That is the reason why I could not give it more than three stars. It disappointed me enough to where I’m really considering returning the item. UPDATE: I found out how to make a stick to the refrigerator and I absolutely love it! I changed my review and my stars! I’m really happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

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