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JDM parts shipped direct from Japan

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HKS Super Fire Racing

The HKS Super Fire spark plugs feature high quality Iridium performance, designed and tested to handle increased vehicle performance.
On Sale
In Stock
Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I
Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I
Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL
Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL
Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I
Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF
Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF
Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL
Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL
Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL
HKS - Super Fire Racing

The HKS Super Fire spark plugs feature high quality Iridium performance, designed and tested to handle increased vehicle performance through aftermarket tuning.

Features

  • 0.4mm diameter Iridium core
  • Grooved electrode and available in a number of heat ranges
  • Price is for a single plug, you need to increase quantity according to your vehicle 

This part usually ships 11 days after payment.

Part Size Type Heat Range   Price Order
50003-M40X
 12x19mm 16mm X 8
USD $ 17.06
USD $ 22.07
50003-M40HL
 12x26.5mm 14mm HL 8
USD $ 19.32
USD $ 25.08
50003-M45HL
 12x26.5mm 14mm HL 9 - Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL
USD $ 19.32
USD $ 25.08
50003-M50HL
 12x26.5mm 14mm HL 10 - Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
USD $ 19.32
USD $ 25.08
50003-MR45HLZ
 12x26.5mm 14mm Protrusion Type 9
USD $ 23.19
USD $ 30.09
50003-MR40XLZ
 12x26.5mm 16mm Protrusion Type 8
USD $ 23.19
USD $ 30.09
50003-MR45XLZ
 12x26.5mm 16mm Protrusion Type 9
USD $ 23.19
USD $ 30.09
50003-M40XL
 12x26.5mm 16mm XL 8 - Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
USD $ 19.32
USD $ 25.08
50003-M45XL
8 in stock and ready to ship!
 12x26.5mm 16mm XL 9 - Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL
USD $ 19.32
USD $ 25.08
50003-M45RE
 14x12.7mm 20.8mm RE 9
USD $ 29.36
USD $ 38.12
50003-M50RE
 14x12.7mm 20.8mm RE 10
USD $ 29.36
USD $ 38.12
50003-M525RE
 14x12.7mm 20.8mm RE 10.5
USD $ 29.36
USD $ 38.12
50003-M35i
 14x19mm 16mm ISO 7 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
USD $ 17.06
USD $ 22.07
50003-M40I
8 in stock and ready to ship!
 14x19mm 16mm ISO 8 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I
USD $ 17.06
USD $ 22.07
50003-M45I
4 in stock and ready to ship!
 14x19mm 16mm ISO 9 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I
USD $ 17.06
USD $ 22.07
50003-M35
6 in stock and ready to ship!
 14x19mm 16mm JIS 7 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
USD $ 17.06
USD $ 22.07
50003-M40
 14x19mm 16mm JIS 8
USD $ 17.06
USD $ 22.07
50003-M45
 14x19mm 16mm JIS 9 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
USD $ 17.06
USD $ 22.07
50003-M35G
 14x19mm 20.8mm G 7
USD $ 17.06
USD $ 22.07
50003-M40G
 14x19mm 20.8mm G 8
USD $ 17.06
USD $ 22.07
50003-M45G
 14x19mm 20.8mm G 9
USD $ 17.06
USD $ 22.07
50003-M35LF
 14x25mm 16mm Conical Long Reach 7
USD $ 19.32
USD $ 25.08
50003-M40LF
 14x25mm 16mm Conical Long Reach 8 - Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF
USD $ 19.32
USD $ 25.08
50003-M35iL
 14x26.5mm 16mm Long Reach 7 - Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL
USD $ 17.06
USD $ 22.07
50003-M40iL
 14x26.5mm 16mm Long Reach 8
USD $ 17.06
USD $ 22.07
50003-M45iL
 14x26.5mm 16mm Long Reach 9
USD $ 17.06
USD $ 22.07
Size 12x19mm 16mm
Type X
Heat Range 8
50003-M40X
USD $ 17.06
USD $ 22.07
Size 12x26.5mm 14mm
Type HL
Heat Range 8
50003-M40HL
USD $ 19.32
USD $ 25.08
- Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL
Size 12x26.5mm 14mm
Type HL
Heat Range 9
50003-M45HL
USD $ 19.32
USD $ 25.08
- Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
Size 12x26.5mm 14mm
Type HL
Heat Range 10
50003-M50HL
USD $ 19.32
USD $ 25.08
Size 12x26.5mm 14mm
Type Protrusion Type
Heat Range 9
50003-MR45HLZ
USD $ 23.19
USD $ 30.09
Size 12x26.5mm 16mm
Type Protrusion Type
Heat Range 8
50003-MR40XLZ
USD $ 23.19
USD $ 30.09
Size 12x26.5mm 16mm
Type Protrusion Type
Heat Range 9
50003-MR45XLZ
USD $ 23.19
USD $ 30.09
- Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
Size 12x26.5mm 16mm
Type XL
Heat Range 8
50003-M40XL
USD $ 19.32
USD $ 25.08
- Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL
Size 12x26.5mm 16mm
Type XL
Heat Range 9
50003-M45XL
8 in stock and ready to ship!
USD $ 19.32
USD $ 25.08
Size 14x12.7mm 20.8mm
Type RE
Heat Range 9
50003-M45RE
USD $ 29.36
USD $ 38.12
Size 14x12.7mm 20.8mm
Type RE
Heat Range 10
50003-M50RE
USD $ 29.36
USD $ 38.12
Size 14x12.7mm 20.8mm
Type RE
Heat Range 10.5
50003-M525RE
USD $ 29.36
USD $ 38.12
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
Size 14x19mm 16mm
Type ISO
Heat Range 7
50003-M35i
USD $ 17.06
USD $ 22.07
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I
Size 14x19mm 16mm
Type ISO
Heat Range 8
50003-M40I
8 in stock and ready to ship!
USD $ 17.06
USD $ 22.07
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I
Size 14x19mm 16mm
Type ISO
Heat Range 9
50003-M45I
4 in stock and ready to ship!
USD $ 17.06
USD $ 22.07
- Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35
Size 14x19mm 16mm
Type JIS
Heat Range 7
50003-M35
6 in stock and ready to ship!
USD $ 17.06
USD $ 22.07
Size 14x19mm 16mm
Type JIS
Heat Range 8
50003-M40
USD $ 17.06
USD $ 22.07
- Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size 14x19mm 16mm
Type JIS
Heat Range 9
50003-M45
USD $ 17.06
USD $ 22.07
Size 14x19mm 20.8mm
Type G
Heat Range 7
50003-M35G
USD $ 17.06
USD $ 22.07
Size 14x19mm 20.8mm
Type G
Heat Range 8
50003-M40G
USD $ 17.06
USD $ 22.07
Size 14x19mm 20.8mm
Type G
Heat Range 9
50003-M45G
USD $ 17.06
USD $ 22.07
Size 14x25mm 16mm
Type Conical Long Reach
Heat Range 7
50003-M35LF
USD $ 19.32
USD $ 25.08
- Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF
Size 14x25mm 16mm
Type Conical Long Reach
Heat Range 8
50003-M40LF
USD $ 19.32
USD $ 25.08
- Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL
Size 14x26.5mm 16mm
Type Long Reach
Heat Range 7
50003-M35iL
USD $ 17.06
USD $ 22.07
Size 14x26.5mm 16mm
Type Long Reach
Heat Range 8
50003-M40iL
USD $ 17.06
USD $ 22.07
Size 14x26.5mm 16mm
Type Long Reach
Heat Range 9
50003-M45iL
USD $ 17.06
USD $ 22.07
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