HKS Spark Plug for Evo 1-8/DSM #9 (50003-M45G)
HKS M-Series Super Fire Racing spark plugs are sold individually. These high performance iridium plugs are designed to handle higher boost with improved ignition performance and anti-carbon build-up. Fits Mitsubishi Evolution 1-8 models and all 1G/2G DSM.
Vehicle Fitment:
1992-2005 Evolution I-VIII
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1993 Galant VR4
(And more!)
Includes:
(1) Spark Plug
Spark plugs are sold individually price is for one plug!
Heat Range and Thread
| Part Number: | Heat Range: | Thread: |
| 50003-M45G | NGK #9 | 14mm x 19 |
HKS Plug Heat Range Conversion Chart
| HKS | 25 | 30 | 35 | 40 | 45 | 50 | 52.5 | 55 |
| DENSO | 16 | 20 | 22 | 24 | 27 | 31 | 32 | 34 |
| NGK | 5 | 6 | 7 | 8 | 9 | 10 | 10.5 | 11 |
0.6mm Iridium Alloy Center Electrode:
Iridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability.
Outer Electrode with Platinum Chip:
The Outer Electrode incorporates a square platinum chip which improves durability, and when combined with the iridium center electrode boosts ignition performance.
Short Type Outer Electrode (Anti-Vibration):
The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode.
Thermal Edge:
After long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits.
Spark Support Gap:
Discharges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.
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°C, opposed to the 1769°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
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