BR7HIX NGK Iridium Spark Plug | Genuine NGK Spark Plug

🔧 Product Description

NGK Iridium Spark Plug – Part Number: BR7HIX

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: 7067
• Thread: 14 mm
• Reach: 12.7 mm (1/2 in)
• Hex: 20.8 mm (13/16 in)
• Seat: Gasket

🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment and automotive vehicles. The gap is not the same on all of them – the chart lists between 0.5 mm and 1.0 mm depending on the engine, so check the line for yours.

• Chrysler M122A (4 CYL) – Inboard Engine
• Chrysler M122B (4 CYL) – Inboard Engine
• Chrysler M183B (6 CYL) – Inboard Engine
• Hardin H405TC (1990-1978) – Inboard Engine
• Evinrude (125 HP, 1972-1971) – Outboard Engine
• Evinrude (115 HP, 1970-1969) – Outboard Engine
• Evinrude CV4 (115 HP, 1998-1979) – Outboard Engine
• Evinrude TURBOJET CV4 (115 HP, 1998-1994) – Outboard Engine
• Evinrude CV4 (112 HP, 1997-1979) – Outboard Engine
• Evinrude CV4 (110 HP, 1997-1979) – Outboard Engine
• Evinrude STARFIRE (100 HP, 1972-1967) – Outboard Engine
• Evinrude V4 (100 HP, 1980-1979) – Outboard Engine
• Evinrude SPL CV4 (88 HP, 1997-1979) – Outboard Engine
• Evinrude (85 HP, 1980-1968) – Outboard Engine
• Evinrude TRIUMPH, 3-CYL. (65 HP, 1973-1972) – Outboard Engine
• Evinrude 2-CYL. (55 HP, 1989-1976) – Outboard Engine
• Evinrude (50 HP, 1979-1978) – Outboard Engine
• Evinrude (40 HP, 1976-1974) – Outboard Engine
• Evinrude COM 43 CID (40 HP, 1990-1981) – Outboard Engine
• Evinrude (30 HP, 1998-1978) – Outboard Engine
• Evinrude (28 HP, 1997-1978) – Outboard Engine
• Evinrude (25 HP, 1977) – Outboard Engine
• Evinrude 2-CYL. (25 HP, 1998-1977) – Outboard Engine
• Evinrude (20 HP, 1993-1978) – Outboard Engine
• Evinrude 2-CYL. (20 HP, 1998-1978) – Outboard Engine

That is the 25 most common of 374 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.

• DENSO: 4026, 5379, IWF22, W22FS-GU, W22FS-ZU
• Autolite: XS4092, XS4092DP, XS4093, XS4093DP
• Bosch: W5AP, W5AS
• Brisk: N17W
• Magneti Marelli: CWP8N

📦 Condition

• Brand new genuine product
• Supplied in original packaging