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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
HKS Super Fire Racing Spark Plug 50003-M40GM 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: 20.8mm
Fits:
| 1985 - 1989 | HONDA | ACCORD | L4 | 1.8 | ALL | From 6/1985 Thru 9/1989 Production Date | CA1 Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1987 - 1989 | HONDA | ACCORD | L4 | 2.0 | ALL | From 5/1987 Thru 9/1989 Production Date | CA5 Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1988 - 1989 | HONDA | ACCORD | ALL | 2.0 | A20A3 | From 4/1988 Thru 9/1989 Production Date | CA6 Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1982 - 1987 | HONDA | PRELUDE | L4 | 1.8 | ALL | From 11/1982 Thru 4/1987 Production Date | AB83 Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1983 - 1987 | MAZDA | 626 | L4 | 2.0 | ALL | From 10/1983 Thru 2/1987 Production Date | GCEP Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1993 - 1997 | MITSUBISHI | DIAMANTE | ALL | 3.0 | 6G72 | From 1/1993 Thru 1/1997 Production Date | K45 Chassis | Wagon SOHC | Stock Plug/Heat Range: LONG:6 |
| 1990 - 1995 | MITSUBISHI | ECLIPSE | ALL | 2.0 | 4G63 | From 2/1990 Thru 6/1995 Production Date | D22A Chassis | DOHC | Stock Plug/Heat Range: LONG:6 |
| 1990 - 1995 | MITSUBISHI | ECLIPSE | ALL | 2.0 | 4G63 | From 2/1990 Thru 6/1995 Production Date | D27A Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1995 - 1999 | MITSUBISHI | ECLIPSE | ALL | 2.0 | 4G63 | From 6/1995 Thru 8/1999 Production Date | D32A Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1997 - 1999 | MITSUBISHI | ECLIPSE | ALL | 2.0 | 4G63 | From 3/1997 Thru 8/1999 Production Date | D38A Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1992 - 1992 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 10/1991 Thru 1/1994 Production Date | CD9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1993 - 1994 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 1/1994 Thru 9/1994 Production Date | CE9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1995 - 1995 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 9/1994 Thru 8/1996 Production Date | CE9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1996 - 1996 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 8/1996 Thru 12/1997 Production Date | CN9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 2003 - 2005 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 2/2004 Thru 2/2005 Production Date | CT9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1997 - 1998 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 1/1998 Thru 12/1998 Production Date | CP9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1999 - 2000 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 1/1999 Thru 1/2001 Production Date | CP9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1999 - 2000 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 1/2000 Thru 1/2001 Production Date | CP9A Chassis | Tommi Makinen Edition DOHC | Stock Plug/Heat Range: LONG:7 |
| 2001 - 2002 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 2/2001 Thru 3/2002 Production Date | CT9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 2003 - 2005 | MITSUBISHI | LANCER | ALL | 2.0 | 4G63 | From 2/2003 Thru 1/2004 Production Date | CT9A Chassis | DOHC | Stock Plug/Heat Range: LONG:7 |
| 1988 - 1991 | MITSUBISHI | MONTERO | V6 | 3.0 | ALL | From 9/1988 Thru 1/1991 Production Date | L141/146GW Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1988 - 1990 | MITSUBISHI | STARION | ALL | 2.6 | ALL | From 5/1988 Thru 10/1990 Production Date | A187A Chassis | Stock Plug/Heat Range: LONG:7 | |
| 1985 - 1988 | SUBARU | JUSTY | L3 | 1.2 | ALL | From 10/1985 Thru 10/1988 Production Date | KA7/KA8 Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1988 - 1994 | SUBARU | JUSTY | L3 | 1.2 | ALL | From 11/1988 Thru 3/1994 Production Date | KA7/KA8 Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1983 - 1986 | TOYOTA | CELICA | L6 | 2.8 | 5MGE | From 8/1983 Thru 2/1986 Production Date | MA61 Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1988 - 1992 | TOYOTA | LAND CRUISER | ALL | 4.0 | 3FE | From 8/1988 Thru 8/1992 Production Date | FJ62G/FJ80G Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1987 - 1990 | TOYOTA | TERCEL | ALL | 1.5 | 3E;3EE | From 5/1986 Thru 9/1990 Production Date | EL31 Chassis | Stock Plug/Heat Range: LONG:5 | |
| 1989 - 1992 | VOLKSWAGEN | GOLF | ALL | 1.8 | RV | From 10/1989 Thru 3/1992 Production Date | E-19RV Chassis | Stock Plug/Heat Range: LONG:6 | |
| 1989 - 1992 | VOLKSWAGEN | JETTA | ALL | 1.8 | ALL | From 10/1989 Thru 11/1991 Production Date | E-16RV Chassis | Stock Plug/Heat Range: LONG:6 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 132 reviews
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Product Reviews
★★★★★ 5
Perfect Solution for Areas Without Electricity – Easy, Reliable, and Worth It
Size: 1 Camera, Size: 1 Camera
I have to admit, this camera brand has become my favorite. This is already my third device: I have a Ring doorbell, a wall-mounted camera, and now this battery-powered version, which turned out to be exactly what I needed for an area where I don't have access to electricity.
I installed it in the hallway of my apartment, right outside the bathroom and bedroom entrances, where there are no outlets, and it has worked perfectly for monitoring that space. It gives me great peace of mind knowing that this area is covered without having to do any complicated installations.
One of the things I like most about this brand is the image and audio quality. The image is clear both day and night, and the sound is crisp, which makes a huge difference in daily use.
The installation was quick and easy, and the app is very user-friendly. Motion notifications arrive instantly, allowing me to stay informed at all times.
It's been installed for about 15 days and the battery is around 53%, which means it will last about a month depending on usage and the amount of motion it detects.
I'm also taking advantage of the 30-day free trial, and what I find excellent is that my current $9.99 plan covers all my devices at no extra cost.It also features two-way audio, integrates seamlessly with Alexa, and has performed well so far, even outdoors.
The only thing I'd mention is that battery life is highly dependent on activity, so in busy areas it may require more frequent recharging.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Stop thinking about which 1, get these!
Size: 1 Camera
Should have got these along time ago. Procrastinating way too much. Great quality, wireless, long lasting battery thus far. Easy to install just about anywhere. Can be moved around. Great set I bought 2 of the covers front of the house and rear yard plus my doorbell. Security surveillance all around! Dont think twice you'll be more than satisfied and greatful.just probably upset you didnt get them sooner.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great security features.
Size: 1 Camera
Works great I just wish the battery last longer.Nightvision is great as well weather proof.Sticks up and is sturdy as well.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Best 100-Inch TV Experience I’ve ever had
Style: 2026 Model, Size: 100-Inch, Style: 2026 Model, Size: 100-Inch
Absolutely stunning picture and performance!
I’ve been using the Toshiba 100" Z670 Series Mini-LED TV 9 hours+ every day, and it’s nothing short of amazing. The Mini-LED backlight combined with QLED delivers incredible contrast and vibrant colors — way better than conventional LED TVs. The native 144Hz panel makes motion incredibly smooth, whether I'm watching sports or playing fast-paced games on my PS5. And it’s super thin!!
Game Mode Pro works flawlessly; I barely notice any input lag. The REGZA Engine Zri keeps everything snappy, and Dolby Vision IQ + HDR10+ make movies pop. Sound from Dolby Atmos is surprisingly immersive for built-in speakers.
Setup was easy with Fire TV built-in, and Alexa is a nice bonus. For a 100-inch screen, the design is sleek and edge-to-edge. Definitely worth every penny if you want a premium home theater experience. Highly recommend!
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Great picture quality and smooth performance
Style: 2026 Model, Size: 65-Inch, Style: 2026 Model, Size: 65-Inch
This Toshiba 65" Mini‑LED TV has been a great upgrade for my living room. The picture is bright and clear, and the colors look very natural. The 144Hz refresh rate makes movies and games feel smooth, and Dolby Vision IQ works well in different lighting. The built‑in Fire TV is easy to use, and the sound with Dolby Atmos is better than I expected. Overall, it’s a solid TV for everyday watching and gaming.
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Reviewed in the United States on April 8, 2026