SKU: 3545640379

HKS Super Fire Racing Spark Plug 50003-M50HL

$38.85 $43.17
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Description

HKS Super Fire Racing Spark Plug 50003-M50HLM 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 # 10
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 43313 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 43315 ALL VR38DETT From 12/2007 Production Date  R35 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:8
2011 - 2015 NISSAN JUKE ALL 43252 ALL MR16DDT From 11/2010 Production Date  F15 Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:7
2008 - 2013 NISSAN ROGUE ALL 43222 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 43160 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 43313 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 43313 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 43313 ALL 2ZRFE From 10/2007 Production Date  ZRE152N/ZRE154N Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2014 - 2015 TOYOTA COROLLA ALL 43313 ALL 2ZRFAE From 5/2012 Production Date  ZRE162G Chassis  Stock Plug/Heat Range: M12 Long Reach HEX14:6
2009 - 2015
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 3545640379

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4.5 ★★★★★
Based on 492 reviews
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Product Reviews
D
Verified Purchase
Donna Smith
Chelsea, US
★★★★★ 4
Tea Tree Oil
Size: Tub 8 Ounce
I was trying to find a product to replace Maty's baby diaper rash relief which contains Calendula 3X HPUS & smells nice. Marie Originals is a similar product, only 1X HPUS Calendula & contains Tea tree oil. Although Tea Tree oil is very beneficial- if you or baby gets it in their eyes- it's irritating. This product has a strong Tea tree smell. It is a thick ointment like the discontinued Maty's product. I would buy Marie Originals again. Just wished it smelled better for use on a baby.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2024
K
Verified Purchase
KN
Houston, US
★★★★★ 1
Disappointed
Size: Tub 8 Ounce
Not happy with this product. The product fails to give the desired results. I used the entire thing but left disappointed. The price is high for this small amount and on top of that it doesn't help with the diaper rash.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
L
L. Minten
Whiting, US
★★★★★ 5
Can be used for more than just diaper rash...
Size: Tub 8 Ounce
We were turned on to using diaper rash ointment for healing cracked heels and rough hands. Our German exchange daughter brought a cream from Germany that was fantastic and we have spent the last fifteen years trying to find something US based that could compare. As grandparents, we also wanted to make sure when we are on deck for diaper duty we use something approved by very picky natural based parents. I figured I would try it out on myself first and frankly my hands need it desperately. The ingredients are natural based, well researched, and used in the top rated diaper rash creams. It is a New York company founded by a woman trying to come up with a burn cream for her daughter years ago. They have a poison oak bar they developed along with other healing creams. After researching it, as I encourage everyone to do on any skin or health product, I felt comfortable enough to give it a go. It comes well sealed in a small jar and is a firm creamy ointment. It smells nice - a little sweet and flowery, but not overwhelming - just a natural scent really. It only takes a scooch and covers well. I was expecting a thick what paste as in diaper creams from back in my day but this is transparent when you put it on. It absorbs nicely but leaves a water shedding quality. My normally rough hands are soft this morning and what I like best is the water shedding properties. I ran my hands under the water just to put it to the test and it did great. I have very sensitive skin and have had no issues. Really a nice cream I feel totally comfortable using myself and on those cute lil baby buns. The company put a lot of care into developing their products and I appreciate it. Oh, one question I would be asking is "is it oily" - It is not. The feeling you get from it is best described as "soft". The con - the writing on the jar is so small (old people can't see) so I relied on being able to blow up the pictures on here. What would be great is if they would add the back of the jar in the pictures too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2024
J
Verified Purchase
Jessica
Cuba, US
★★★★★ 2
No spatulas ?
Size: Tub 8 Ounce
Seems ok so far. We will see. A little disappointed that it didn’t come with the spatulas everyone pictured in the reviews.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
T
The Dude
Boise, US
★★★★★ 5
easy to use spatula
This two pack of baby spatulas are easy to use and easy to clean. You don't have to worry about getting your fingers sticky or messy when applying creams to your baby. The suction cup on the end is a nice touch so that you can stand these up straight and not get another surface dirty or sticky. Definitely recommend this item to new parents!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025

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