SKU: 3545640379

HKS Super Fire Racing Spark Plug 50003-M50HL

Sale price$38.85 Regular price$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:
  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: 3545640379

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4.7 ★★★★★
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Steven J.
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★★★★★ 5
Absolutely LOVEEE
I loooove this chair. I work from home and it is so comfortable to sit in any position. It is great for sitting criss cross but you can also sit normal or on your knees. Very stable and easy to put together. Great quality
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Reviewed in the United States on April 21, 2026
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Syd M
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I LOVE MY Criss Cross Applesauce Office Desk Chair IS THE BEST
Color: Cream, Size: PU Leather(No Wheels)
The Criss Cross Applesauce Office Desk Chair is a unique and innovative addition to any workspace, offering a blend of comfort, functionality, and modern design. What immediately stands out about this chair is its ergonomic design. The criss-cross frame provides excellent support to the back and promotes proper posture during long hours of sitting. This feature is particularly beneficial for reducing strain on the lower back and promoting overall spinal health, which is essential for those who spend extended periods at their desks. The chair is upholstered with high-quality materials that offer both durability and comfort. The cushioned seat and backrest provide ample support while maintaining a plush feel, ensuring comfort throughout the workday. Another notable feature is the adjustable height mechanism, which allows users to customize the chair to their preferred seating position. This versatility ensures that the chair can accommodate individuals of varying heights and preferences, enhancing overall ergonomic comfort. In terms of aesthetics, the Criss Cross Applesauce chair boasts a modern and sleek design that complements contemporary office decor. Its minimalist appearance blends seamlessly into any workspace environment, adding a touch of style without compromising functionality. Assembly of the chair is straightforward, with clear instructions provided for easy setup. The sturdy construction and stable base ensure reliability and safety, providing peace of mind for users. While the chair excels in comfort and design, some users may find the criss-cross frame design to be unconventional compared to traditional office chairs. It's important to consider personal preferences and ergonomic needs when choosing a chair that best suits individual comfort requirements. Overall, the Criss Cross Applesauce Office Desk Chair combines ergonomic support with modern aesthetics, making it a practical and stylish choice for enhancing comfort and productivity in the workplace. Its blend of functionality, comfort, and contemporary design earns it a recommendation for anyone looking to upgrade their office seating experience.
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Reviewed in the United States on July 10, 2024
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Verified Purchase
Na
Massapequa, US
★★★★★ 5
Perfect little black chair
I bought this chair for four reasons: 1. My favorite color is black, but the company offers different color options. 2. The height of the chair was exactly what I was looking for. I did not want a tall back for the chair. The chair is close to the ground, which is a plus for me, my back, and my knees as I get older. 3. The chair comes with the option of wheels or no wheels; I chose the no wheels option, as I get dizzy and sick when I spin around for too long. 4. The chair’s wide back and seat design are perfect for me, since I prefer to sit criss-cross in a chair. Pluses: It reclines, is comfy, and can be cleaned and moved easily.
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Reviewed in the United States on January 7, 2026
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Jennifer
Whiting, US
★★★★★ 5
Great chair, highly recommend!
Color: Cream, Size: PU Leather(No Wheels), Color: Cream, Size: PU Leather(No Wheels)
Very nice looking chair! It is comfortable, classy, and durable unless you have a cat like mine who used it for his claws. It was easy to put together. All of the hardware was of good quality and everything fit perfectly. My 14 year old daughter even put it together herself. We actually bought two of these. The other one is in my daughter‘s room for her vanity. I highly recommend them whether you’re buying it to sit crisscross or just for roomy comfort. It is a very comfortable chair and looks elegant.
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Reviewed in the United States on March 15, 2026
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Bly
West Palm Beach, US
★★★★★ 5
New Favorite Desk Chair
This chair is exactly what I was looking for! It is simple to put together, very sturdy and very comfortable. I typically tend to sit criss cross while at my desk and I can do that very comfortably with it. Im a bigger girlie so a chair that can hold weight or deal with me shifting positions was very important to me.
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Reviewed in the United States on May 25, 2026

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