SKU: 24842056581

HKS Super Fire Racing Spark Plug 50003-M40HL

$38.85 $43.17
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

HKS Super Fire Racing Spark Plug 50003-M40HLM 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: 12mm × 26.5mm
Wrench Size: 14mm

Fits:

2014 - 2015 HONDA ACCORD ALL 2.0 ELECTRIC/GAS LFA1 From 6/2013 Production Date  CR6 Chassis  HYBRID  Stock Plug/Heat Range: M12 Long Reach Hex14:7
2015 - 2016 HONDA FIT L4 1.5 ALL L15B1 From 9/2013 Production Date  GK5/GK6 Chassis  Stock Plug/Heat Range: M12 Long Reach Hex14:7
2011 - 2012 INFINITI G25 ALL 2.5 ALL VQ25HR From 11/2006 Thru 11/2013 Production Date  V36/NV36 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2007 - 2008 INFINITI G35 ALL 3.5 ALL VQ35HR From 11/2006 Thru 11/2013 Production Date  PV36 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2008 - 2013 INFINITI G37 ALL 3.7 ALL VQ37VHR From 10/2007 Thru 11/2013 Production Date  CKV36 Chassis  Coupe  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2008 - 2013 INFINITI G37 ALL 3.7 ALL VQ37VHR From 12/2008 Thru 11/2013 Production Date  KV36 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2011 - 2015 LEXUS CT200H ALL 1.8 ALL ALL From 1/2011 Production Date  ZWA10 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2011 - 2013 MAZDA 3 L4 2.0 ALL ALL From 9/2011 Thru 11/2013 Production Date  BLFFP Chassis  SKYACTIV  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2012 - 2013 MAZDA 6 L4 2.5 ALL ALL From 11/2012 Production Date  GJ5FP Chassis  SKYACTIV  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2013 - 2016 MAZDA CX-5 L4 2.0 ALL ALL From 2/2012 Production Date  KEEFW.KEEAW Chassis  SKYACTIV  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2013 - 2016 MAZDA CX-5 L4 2.5 ALL ALL From 10/2013 Production Date  KE5FW.KE5AW Chassis  SKYACTIV  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2007 - 2009 NISSAN 350Z ALL 3.5 ALL VQ35HR From 1/2007 Thru 11/2008 Production Date  HZ33 Chassis  Roadster  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2007 - 2009 NISSAN 350Z ALL 3.5 ALL VQ35HR From 1/2007 Thru 11/2008 Production Date  Z33 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2009 - 2016 NISSAN 370Z ALL 3.7 ALL VQ37VHR From 12/2008 Production Date  Z34 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2009 - 2016 NISSAN GT-R V6 3.8 ALL VR38DETT From 12/2007 Production Date  R35 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2011 - 2015 NISSAN JUKE ALL 1.6 ALL MR16DDT From 11/2010 Production Date  F15 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2008 - 2013 NISSAN ROGUE ALL 2.5 ALL QR25DE From 8/2007 Thru 12/2013 Production Date  TNT31 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2013 - 2016 SCION FR-S ALL ALL ALL ALL From 04/2012 Production Date  ZN6 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:9
2012 - 2015 SCION IQ ALL 1.3 ALL 1NRFE From 8/2009 Production Date  NGJ10 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2013 - 2017 SUBARU BRZ ALL ALL ALL ALL From 03/2012 Production Date  ZC6 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:9
2014 - 2015 SUBARU FORESTER ALL 2.0 ALL FA20F From 11/2012 Production Date  SJG Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2012 - 2014 SUBARU LEGACY H4 2.5 ALL FB25 From 5/2012 Thru 6/2014 Production Date  BMM Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2013 - 2015 SUBARU LEGACY ALL 2.5 ALL FB25 From 10/2014 Production Date  BN9 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2012 - 2014 SUBARU OUTBACK H4 2.5 ALL FB25 From 5/2012 Thru 9/2014 Production Date  BRM Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2013 - 2015 SUBARU OUTBACK ALL 2.5 ALL FB25 From 10/2014 Production Date  BS9 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2015 - 2015 SUBARU WRX H4 2.0 ALL ALL From 8/2014 Production Date  VAG Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2013 - 2015 SUBARU XV CROSSTREK ALL 2.0 GAS FB20 From 10/2012 Production Date  GP7 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2014 - 2015 SUBARU XV CROSSTREK ALL 2.0 ELECTRIC/GAS FB20 From 6/2013 Production Date  GPE Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2017 - 2017 TOYOTA 86 ALL ALL ALL ALL From 04/2012 Production Date  ZN6 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:9
2006 - 2012 TOYOTA COROLLA ALL 1.8 ALL 2ZRFE From 10/2006 Thru 4/2012 Production Date  ZRE142/ZRE144 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2006 - 2012 TOYOTA COROLLA ALL 1.8 ALL 2ZRFE From 10/2006 Thru 4/2012 Production Date  ZRE142G/ZRE144G Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2007 - 2015 TOYOTA COROLLA ALL 1.8 ALL 2ZRFE From 10/2007 Production Date  ZRE152N/ZRE154N Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2014 - 2015 TOYOTA COROLLA ALL 1.8 ALL 2ZRFAE From 5/2012 Production Date  ZRE162G Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2009 - 2015 TOYOTA
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: 24842056581

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4.0 ★★★★★
Based on 30 reviews
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Product Reviews
P
Verified Purchase
Pamela G
West Palm Beach, US
★★★★★ 1
Easily Ripped apart within minutes
Color: Blue Puppy, Size: Medium Size 2, Color: Blue Puppy, Size: Medium Size 2
I have a new foster who’s only 35 pounds not an aggressive chewer and loves to play with my dogs rooster soccer ball toy but the ball itself is a little big for her to get her teeny little mouth around when she’s trying to carry and run with it this happened to pop up on my feed a size smaller (medium, instead of large ) and available for next day delivery, so I bought it specifically for the little dog to play with. I gave it to her to play outside while my hound is busy playing with one of her toys I went about watering the garden, when I turned around a few minutes later, I saw the ball appeared to be completely flattened. As I walked over, I saw pieces of black rubber on the ground, and then the rest of the ball had a gaping hole in it. The rooster version of the ball that I bought from another seller has been going strong for months with multiple dogs playing with it and chewing on it and ripping the side ribbons apart so either I got a defective toy or the quality of manufacturer from this seller is much lower since the durability of the ball seems to be less than an hour.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
C
Verified Purchase
Cmb galdamez
Waukegan, US
★★★★★ 5
Great ball
Color: Blue Puppy, Size: Medium Size 2
My babies love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
T
Verified Purchase
Tiff
Los Angeles, US
★★★★★ 2
Not very durable
Color: Blue Puppy, Size: Medium Size 2
This ball is cute and my dog loves tags. However he popped this ball with one bite to carry it…. Within 10 minutes of getting it. It should have a tougher exterior
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
L
Verified Purchase
Liza Jane
Phoenix, US
★★★★★ 5
Quality and comfort
Size: 10.5-11.5 Women/9-10 Men, Color: Black
Comfortable and fit well. I got these to replace a very old pair that finally wore out! Warmth is medium (I wear puffer booties for when it's really cold). Quality on these is great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
V
Verified Purchase
V M T R
Phoenix, US
★★★★★ 5
Can't go wrong with Acorn for as long as they last!
Size: 12-13 Women/10.5-11.5 Men, Color: Charcoal
Acorn is just a great company all around. I had bought my husband these slippers over 20 years ago. They are still in great shape although the sole has worn in some places. But nothing's coming apart! However, I decided to replace them for him. His foot is 10.5 and they are a little hard to get on right away-of course, after over 20 years of having "worn in" the original pair, anything would feel tight. So I'm not holding this against them. They will relax with use. The only difference is that the original sole was black and these are tan. I think I would prefer the black, but since it's only being worn in the house, no big deal. My husband has really cold feet and these slippers never fail to warm his feet right up! He said they feel really soft to walk in and like the cushioning. They're not too heavy and fit him great! I have Acorn slippers myself that I've worn every single day in the house and outside to the mailbox too. They last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

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