ZFR5FIX-11 NGK Iridium Spark Plug | Genuine NGK Spark Plug

🔧 Product Description

NGK Iridium Spark Plug – Part Number: ZFR5FIX-11

Iridium NGK spark plugs offer a longer service life than a standard nickel-tipped spark plug: while nickel-alloy plugs offer a service life of roughly 20,000-40,000km, NGK Iridium IX spark plugs offer a service life of up to 60,000km, so fewer replacements are needed over time despite the higher initial cost.

Precious-metal spark plugs like the NGK Iridium IX also offer higher ignitability, achieved with an exposed fine-tip centre electrode that promotes superior flame growth compared with a standard spark plug. Iridium has a much higher melting point (2410°C) than nickel (1453°C), allowing the centre electrode diameter to be reduced from 2.5mm to 0.6mm – a smaller electrode mass that reduces the impedance to flame progress, helping acceleration, fuel consumption and idle quality.

⚙️ Key Features

• Fine iridium-tipped centre electrode for a slow wear rate and stable idle
• Longer service life than standard nickel plugs
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs reduce the risk of flashover
• Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
• Copper core aids in heat removal
• Triple seals prevent leakage

📏 Specifications

• NGK stock number: 2477
• Thread: 14 mm
• Reach: 19 mm (3/4 in)
• Hex: 16 mm (5/8 in)
• Seat: Gasket
• Terminal: Solid
• Type: ISO Extended Projection Wide Gap

🚘 Application

Listed in NGK's application charts for automotive vehicles.

• Acura CL (1999-1997) – 4-12 per engine
• Acura CL (2003-2001) – 4-12 per engine
• Acura EL (2000-1997) – 4-12 per engine
• Acura Integra (2001-1992) – 4-12 per engine
• Acura MDX (2002-2001) – 4-12 per engine
• Acura TL (2003-1999) – 4-12 per engine
• Bmw 750iL (1996-1988) – 4-12 per engine
• Bmw 850Ci (1997-1993) – 4-12 per engine
• Bmw 850CSi (1995-1994) – 4-12 per engine
• Bmw 850i (1992-1991) – 4-12 per engine
• Chrysler 200 (2014-2011) – 4-12 per engine
• Chrysler Sebring (2007) – 4-12 per engine
• Chrysler Sebring (2010-2009) – 4-12 per engine
• Dodge Avenger (2014-2008) – 4-12 per engine
• Dodge Caliber (2012-2007) – 4-12 per engine
• Dodge Dakota (2007-2003) – 4-12 per engine
• Dodge Journey (2017-2009) – 4-12 per engine
• Dodge Ram 2500 (1996-1994) – 4-12 per engine
• Dodge Ram 3500 (1996-1994) – 4-12 per engine
• Honda Accord (2002-1990) – 4-12 per engine
• Honda Civic (2000-1992) – 4-12 per engine
• Honda Civic del Sol (1997-1993) – 4-12 per engine
• Honda CR-V (1998-1997) – 4-12 per engine
• Honda Odyssey (2004-1995) – 4-12 per engine
• Honda Pilot (2005-2003) – 4-12 per engine

That is the 25 most common of 47 applications NGK's charts list for this plug – ask us to check yours.

🔄 Supersession & Cross Reference

NGK's cross-reference tables list this plug against these part numbers.

• Autolite: XP5224, XP5224DP2, XP5405, XP5405DP2, XP985, XP985DP2
• DENSO: 4701, 5303, IK16, IK16TT
• Bosch: 4419, 9651, FR8LII33X

📦 Condition

• Brand new genuine product
• Supplied in original packaging