NGK DPR9EIX-9 Iridium IX Spark Plug

NGK
  • S$0.00


NGK DPR9EIX-9 Iridium IX Spark Plug

IRIDIUM IX Ultimate Perfomance

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.

Features

  • Fine iridium tip ensures high durability and a consistently stable spark
  • Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Outstanding acceleration, high fuel efficiency and durability
  • Ultimate design, technology and performance

5 Things You Should Know About Spark Plugs

1. Anti-seize

NGK spark plugs feature what is known as trivalent plating. This silver-or-chrome colored finish on the threads is designed to provide corrosion resistance against moisture and chemicals. The coating also acts as a release agent during spark plug removal. NGK spark plugs are installed at the factory dry, without the use of anti-seize. NGK tech support has received a number of tech calls from installers who have over-tightened spark plugs because of the use of anti-seize. Anti-seize compound can act as a lubricant altering torque values up to 20 percent, increasing the risk of spark plug thread breakage.

2. Corona stain

Corona stain is observed as a light brown or tan discoloration above the hex (located on the ceramic body of the spark plug). Corona stain is created by oil or dirt particles surrounding the spark plug. Spark plugs create a high amount of static electricity as they fire, attracting these particles to the exposed ceramic between the plug boot and the hex. Corona stain is completely normal and should not be mistaken for exhaust gas blow-by or broken seals inside the spark plug.

3. Gapping fine-wire spark plugs

In the late 1980s, when fine-wire spark plugs first appeared, installers used incorrect gap tools and procedures resulting in bent or broken-off firing electrodes. As a result, many people assumed that one cannot adjust the gap on a precious metal plug. While most NGK spark plugs are pre-gapped, there are instances where the gap requires modification. NGK recommends a wire-style or feeler gage gap tool, which can adjust the gap without prying against the center electrode. NGK also recommends adjusting the gap no more than +/- 0.008" from the preset gap.

4. Torque

Torque is critical in the plug's ability to dissipate heat and perform properly. Always follow the manufacturer's recommended torque specification. An under-torqued spark plug can lead to excessive vibration and improper heat dissipation, causing spark plug and/or engine damage. An over-torqued spark plug may cause thread damage or breakage, or compromise internal seals within the spark plug, leading to improper heat dissipation or exhaust gas blow-by.

5. Copper plugs

"Copper spark plugs" is a term mistakenly used for a standard material spark plug. A standard material spark plug traditionally uses a nickel-alloy outer material fused to a copper core. Almost all spark plugs use a copper core center to conduct the electricity, jump the gap, and promote heat dissipation. However, as an outer electrode material, copper would not be a good choice, as it is soft and has a low melting point (resulting in a plug that would last minutes, not miles). Nearly all NGK spark plugs, including precious metals iridium and platinum, have a copper core. When one talks in terms of nickel alloys, platinum and iridium, one is referring to its durability, or how long a spark plug will last before it needs to be replaced. However, when one talks about copper, he or she is referring to its ability to conduct electricity that is needed to fire across the gap and ignite the air-fuel mixture.

Brand Model Year
HONDA CBR1000F 1987
SUZUKI DJEBEL250 1992-1996
SUZUKI DR250S 1990
SUZUKI DR250SH 1990
SUZUKI DR250SHE 1990
SUZUKI DR350 1990-1993
SUZUKI DR600 DAKAR 1985
SUZUKI DR650RSE 1991
SUZUKI DR800S 1990
KAWASAKI CS250 1985
KAWASAKI GPZ250 1983
KAWASAKI GPZ400 1983
KAWASAKI GPZ400F 1983
KAWASAKI GPZ400FII 1984
KAWASAKI GPZ550 1984
KAWASAKI KL250R 1984
KAWASAKI KLF400  
KAWASAKI KLR250  
KAWASAKI Z550GP 1982
KAWASAKI ZEPHYR400 1989-1995
TRIUMPH 620Series  
TRIUMPH ADVENTURE 1996
TRIUMPH DAYTONA1200  
TRIUMPH SPEED TRIPLE900  
TRIUMPH SPRINT900  
TRIUMPH THUNDERBIRD  
TRIUMPH THUNDERBIRD SPORTS  
TRIUMPH TROPHY1200 1996
TRIUMPH TROPHY900 1996
GILERA Saturno Isle of Man 350  
GILERA Saturno Isle of Man 500  
GILERA Saturno350 1994
GILERA Saturno500 1994
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