NGK
NGK Spark Plug - BR7EIX (6664)
Spark PlugsSKU NGKBR7EIX
Cheapest we found
$26.69
at XPERT Moto Gear
9 recent in-stock prices · spread $5.56 (21%)
Based only on in-stock prices checked in the last 30 days. 9 stores checked; dates for every store are shown below.
Recorded store prices
Prices we recorded when we last checked each store for this exact variant.
Product details
NGK have over 80 years of experience in spark plug manufacturing and is the world leader in spark plug technology. NGK has an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its application and designed to suit a broad range of motorcycles, ATVs & UTVs in Australasia. With NGK's dedication to quality, outstanding reliability and state-of-the-art manufacturing techniques, you can rely on your NGK Spark Plugs.
NGK's IX Iridium Series plugs were designed specifically for the performance enthusiast.
- Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark
- Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines
- Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
- Corrugated Ribs Prevent Flashover
- Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
- Copper Core Aids in Heat Removal
- Triple Seals Prevent Leakage
Specifications:
- Hex Size: 13/16" | 20.6 mm
- Style: BR7EIX
- Model: Iridium IX
- Terminal Configuration: Removable Nut
- Center Electrode Projection: Non-Projected
- Electrode Tip Material: Iridium
- Center Electrode Type: Necked Down
- Ground Electrode Configuration: Single
- Ground Electrode Shape: Grooved
- Thread Reach: 19.1 mm | 3/4"
- Heat Range: 7
- Spark Gap: 0.031" | 0.8 mm
- Electrical Resistance: 5k Ohms
- Units: Each
- Riding Style: Off-Road | Street | Watercraft
Price history
Recorded changes for this exact variant.
Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.
- 1XPERT Moto Gear2 points · last checked 22 Aug 2026
- 2Adventure On Store1 point · last checked 22 Aug 2026
- 3Coffs Motorsports1 point · last checked 22 Aug 2026
- 4Cully's Yamaha3 points · last checked 14 Aug 2026
- 5Gold Coast Dirt Bike Performance1 point · last checked 22 Aug 2026
- 6MotoHeaven8 points · last checked 21 Aug 2026
3 more store series are not shown to keep the chart readable.
Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.
How we collect and compare prices