Bosch (4503) FGR7DQI Platinum IR Fusion Spark Plug, Pack of 1

by Bosch

Product Features

• Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
• Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement
• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
• Factory pre-set gap allows for easy installation that never requires adjustment
• Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system

Product Details

• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000PKZ8EI
• Item model number: 4503
• Average Customer Review: 4.5 out of 5 stars  See all reviews (21 customer reviews)
• Amazon Best Sellers Rank: #1,218 in Automotive (See Top 100 in Automotive)
  • #14 in Automotive > Performance Parts & Accessories > Ignition & Electrical > Spark Plugs & Wires > Spark Plugs
  • #17 in Automotive > Replacement Parts > Ignition Parts > Spark Plugs & Wires > Spark Plugs

Product Description

If you're looking for the very latest in spark plug technology, look no further than Bosch Platinum Ir Fusion. Fusion features a patented, fused iridium and platinum center electrode, combined with exclusive surface air gap firing technology to produce a longer, more powerful spark. Its four yttrium-enhanced ground electrode design outperforms OE iridium plugs by significantly reducing gap wear. This means less stress on the ignition system for quicker starts, more efficient fuel combustion, and a longer performance life. In addition, Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system.

Customer Reviews

Most Helpful Customer Reviews

6 of 6 people found the following review helpful:

5.0 out of 5 stars Spark plugs are hot, October 4, 2007

By 

G. Varga - See all my reviews
(REAL NAME)   

This review is from: Bosch (4503) FGR7DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

I bought a set of six for my three series and they are exactly as represented. Top of the line plugs from Bosch. Installed and car runs perfectly.
I'll tell you more after the next 100,000 miles with them!

4 of 4 people found the following review helpful:

5.0 out of 5 stars Better mileage, November 21, 2009

By 

T. Guggisberg - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Bosch (4503) FGR7DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

I tried these plugs on my 2004 Honda Accord to see if they make a difference. The car only has 50k miles, well below the factory recommended change interval for the spark plugs. My average mileage has increased from about 26 to 28.5 MPG. They'll pay for themselves quickly with today's gas prices.

3 of 3 people found the following review helpful:

5.0 out of 5 stars Best Plug on the Market, February 20, 2010

By 

Robert D. Wolfe "Wolfeman" (Midland, MI USA) - See all my reviews
(REAL NAME)   

This review is from: Bosch (4503) FGR7DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

If your looking for Iridium for the platinum plug price, this is the plug for you. My Audi performs better and gets approximatley 1 mpg better fuel mileage than with inferior single ground bar Iridium Plugs on the market. Thumbs up to Bosch for this quality product.