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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.
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: 9 - 50003-M45
Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
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: ISO - Heat Range: 9 - 50003-M45I
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
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: 14x19mm 16mm - Type: JIS - Heat Range: 9 - 50003-M45
Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL

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 

HKS now available at our lowest prices ever!

HKS now available at our lowest prices ever!

HKS is now available at our lowest prices ever, delivered straight from Japan to anywhere in the world. HKS has the largest range of parts available including turbo kits, engine parts, electronics and many more.

This part usually ships 6 days after payment.

Product Size Type Heat Range   Price Order
50003-M40X
 12x19mm 16mm X 8 DISCONTINUED
This part is no longer available
50003-M40HL
 12x26.5mm 14mm HL 8 DISCONTINUED
This part is no longer available
50003-M45HL
 12x26.5mm 14mm HL 9 - Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL DISCONTINUED
This part is no longer available
50003-M50HL
 12x26.5mm 14mm HL 10 - Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL DISCONTINUED
This part is no longer available
50003-M40XL
 12x26.5mm 16mm XL 8 - Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL DISCONTINUED
This part is no longer available
50003-M45XL
 12x26.5mm 16mm XL 9 - Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL DISCONTINUED
This part is no longer available
50003-M45RE
 14x12.7mm 20.8mm RE 9 DISCONTINUED
This part is no longer available
50003-M50RE
 14x12.7mm 20.8mm RE 10 DISCONTINUED
This part is no longer available
50003-M525RE
 14x12.7mm 20.8mm RE 10.5 DISCONTINUED
This part is no longer available
50003-M35i
 14x19mm 16mm ISO 7 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i DISCONTINUED
This part is no longer available
50003-M40I
 14x19mm 16mm ISO 8 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I DISCONTINUED
This part is no longer available
50003-M45I
 14x19mm 16mm ISO 9 - Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I DISCONTINUED
This part is no longer available
50003-M35
 14x19mm 16mm JIS 7 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35 - Size: 14x19mm 16mm - Type: JIS - Heat Range: 7 - 50003-M35 DISCONTINUED
This part is no longer available
50003-M40
 14x19mm 16mm JIS 8 DISCONTINUED
This part is no longer available
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 DISCONTINUED
This part is no longer available
50003-M35G
 14x19mm 20.8mm G 7 DISCONTINUED
This part is no longer available
50003-M40G
 14x19mm 20.8mm G 8 DISCONTINUED
This part is no longer available
50003-M45G
 14x19mm 20.8mm G 9 DISCONTINUED
This part is no longer available
50003-M35LF
 14x25mm 16mm Conical Long Reach 7 DISCONTINUED
This part is no longer available
50003-M40LF
 14x25mm 16mm Conical Long Reach 8 - Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF DISCONTINUED
This part is no longer available
50003-M35iL
 14x26.5mm 16mm Long Reach 7 - Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL DISCONTINUED
This part is no longer available
50003-M40iL
 14x26.5mm 16mm Long Reach 8 DISCONTINUED
This part is no longer available
50003-M45iL
 14x26.5mm 16mm Long Reach 9 DISCONTINUED
This part is no longer available
Product   Order
Size: 12x19mm 16mm
Type: X
Heat Range: 8
50003-M40X
 DISCONTINUED
This part is no longer available
Size: 12x26.5mm 14mm
Type: HL
Heat Range: 8
50003-M40HL
 DISCONTINUED
This part is no longer available
- Size: 12x26.5mm 14mm - Type: HL - Heat Range: 9 - 50003-M45HL
Size: 12x26.5mm 14mm
Type: HL
Heat Range: 9
50003-M45HL
 DISCONTINUED
This part is no longer available
- Size: 12x26.5mm 14mm - Type: HL - Heat Range: 10 - 50003-M50HL
Size: 12x26.5mm 14mm
Type: HL
Heat Range: 10
50003-M50HL
 DISCONTINUED
This part is no longer available
- Size: 12x26.5mm 16mm - Type: XL - Heat Range: 8 - 50003-M40XL
Size: 12x26.5mm 16mm
Type: XL
Heat Range: 8
50003-M40XL
 DISCONTINUED
This part is no longer available
- Size: 12x26.5mm 16mm - Type: XL - Heat Range: 9 - 50003-M45XL
Size: 12x26.5mm 16mm
Type: XL
Heat Range: 9
50003-M45XL
 DISCONTINUED
This part is no longer available
Size: 14x12.7mm 20.8mm
Type: RE
Heat Range: 9
50003-M45RE
 DISCONTINUED
This part is no longer available
Size: 14x12.7mm 20.8mm
Type: RE
Heat Range: 10
50003-M50RE
 DISCONTINUED
This part is no longer available
Size: 14x12.7mm 20.8mm
Type: RE
Heat Range: 10.5
50003-M525RE
 DISCONTINUED
This part is no longer available
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 7 - 50003-M35i
Size: 14x19mm 16mm
Type: ISO
Heat Range: 7
50003-M35i
 DISCONTINUED
This part is no longer available
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 8 - 50003-M40I
Size: 14x19mm 16mm
Type: ISO
Heat Range: 8
50003-M40I
 DISCONTINUED
This part is no longer available
- Size: 14x19mm 16mm - Type: ISO - Heat Range: 9 - 50003-M45I
Size: 14x19mm 16mm
Type: ISO
Heat Range: 9
50003-M45I
 DISCONTINUED
This part is no longer available
- 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
 DISCONTINUED
This part is no longer available
Size: 14x19mm 16mm
Type: JIS
Heat Range: 8
50003-M40
 DISCONTINUED
This part is no longer available
- 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
 DISCONTINUED
This part is no longer available
Size: 14x19mm 20.8mm
Type: G
Heat Range: 7
50003-M35G
 DISCONTINUED
This part is no longer available
Size: 14x19mm 20.8mm
Type: G
Heat Range: 8
50003-M40G
 DISCONTINUED
This part is no longer available
Size: 14x19mm 20.8mm
Type: G
Heat Range: 9
50003-M45G
 DISCONTINUED
This part is no longer available
Size: 14x25mm 16mm
Type: Conical Long Reach
Heat Range: 7
50003-M35LF
 DISCONTINUED
This part is no longer available
- Size: 14x25mm 16mm - Type: Conical Long Reach - Heat Range: 8 - 50003-M40LF
Size: 14x25mm 16mm
Type: Conical Long Reach
Heat Range: 8
50003-M40LF
 DISCONTINUED
This part is no longer available
- Size: 14x26.5mm 16mm - Type: Long Reach - Heat Range: 7 - 50003-M35iL
Size: 14x26.5mm 16mm
Type: Long Reach
Heat Range: 7
50003-M35iL
 DISCONTINUED
This part is no longer available
Size: 14x26.5mm 16mm
Type: Long Reach
Heat Range: 8
50003-M40iL
 DISCONTINUED
This part is no longer available
Size: 14x26.5mm 16mm
Type: Long Reach
Heat Range: 9
50003-M45iL
 DISCONTINUED
This part is no longer available
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