NGK BKR5EGP G-Power Spark Plug, 4-Pack

Last updated date: July 13, 2020

DWYM Score
9.5

NGK BKR5EGP G-Power Spark Plug, 4-Pack

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We looked at the top Spark Plugs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Spark Plug you should buy.

Overall Take

This spark plug is made using a special trivalent metal plating that resists corrosion and prevents seizing. It also features a triple gasket seal to eliminate combustion gas leakage. Users will love the quicker starts and improved fuel efficiency that this spark plug provides. In our analysis of 14 expert reviews, the NGK NGK G-Power Spark Plug, 4-Pack placed 2nd when we looked at the top 10 products in the category. For the full ranking, see below.

Editor's Note July 13, 2020:
Checkout The Best Spark Plug for a detailed review of all the top spark plugs.

Expert Summarized Score
7.5
2 expert reviews
User Summarized Score
9.4
18,479 user reviews
Our Favorite Video Reviews
What experts liked
Uses an innovative design to try to supply the performance of iridium-constructed models at a cheaper price.
- Car Bibles
The plugs are designed to improve the throttle response and to prevent flashover and fouling.
- Car Speak Pro
What experts didn't like
Platinum on tip only.
- Car Bibles
Those who were not satisfied with the plugs complained most frequently about the plugs not fitting their vehicle (this most likely could have been prevented if they had double-checked the compatibility before buying).
- Car Speak Pro

From The Manufacturer

G-Power Platinum Alloy Spark Plugs offer superior performance with improved fuel efficiency, lower emissions, and quicker starts. 0.6mm laser welded fine Platinum tip reduces required voltage ensuring high durability and a consistently stable spark. Special configurations are used for the insulator noses to improve throttle response and prevent fouling with corrugated ribs on insulator to prevent flashover. Platinum alloy ground and center electrode for greater spark while ensuring precise gap during the life of the plug. Trivalent Metal Plating offers superior anti corrosion and anti-seizing properties while the triple gasket seal eliminates combustion gas leakage. Simply the best platinum spark plug at an economical cost.

Overall Product Rankings

Champion RC12YC Spark Plug
1. Champion RC12YC Spark Plug
Overall Score: 9.8
Expert Reviews: 1
NGK BKR5EGP G-Power Spark Plug, 4-Pack
2. NGK BKR5EGP G-Power Spark Plug, 4-Pack
Overall Score: 9.5
Expert Reviews: 2
Briggs & Stratton 491055S Spark Plug
3. Briggs & Stratton 491055S Spark Plug
Overall Score: 9.4
Expert Reviews: 0
DENSO PK20TT PLATINUM T T Spark Plugs, 6-Pack
4. DENSO PK20TT PLATINUM T T Spark Plugs, 6-Pack
Overall Score: 9.3
Expert Reviews: 3
E3 Spark Plugs Power Sports E336 E3 Spark Plug
5. E3 Spark Plugs Power Sports E336 E3 Spark Plug
Overall Score: 9.1
Expert Reviews: 1
Hilom 491055 Spark Plug, 2-Pack
6. Hilom 491055 Spark Plug, 2-Pack
Overall Score: 9.0
Expert Reviews: 0
Autolite AP5325-4PK Platinum Spark Plug, 4-Pack
7. Autolite AP5325-4PK Platinum Spark Plug, 4-Pack
Overall Score: 9.0
Expert Reviews: 1
Motorcraft SP-479 AGSF22WM Spark Plug, 8-Pack
8. Motorcraft SP-479 AGSF22WM Spark Plug, 8-Pack
Overall Score: 8.9
Expert Reviews: 0
Champion RC12YC Spark Plug, 2-Pack
9. Champion RC12YC Spark Plug, 2-Pack
Overall Score: 8.5
Expert Reviews: 2
ACDelco 41-993 Professional Iridium Spark Plug
10. ACDelco 41-993 Professional Iridium Spark Plug
Overall Score: 8.5
Expert Reviews: 2

An Overview On Spark Plugs

All machines that use gasoline engines are outfitted with spark plugs. This includes automobiles, lawnmowers, watercraft and aircraft. Spark plugs are responsible for creating the electricity needed to ignite the fuel mixture to start the combustion process and turn on the engine. Depending on the type of machine, you will most likely be able to replace the spark plugs on your own, without having to schedule an appointment with a mechanic.

As you begin shopping for the best spark plug, you’ll want to first make sure the plug meets International Organization for Standardization (ISO) and Society of Automobile Engineers (SAE) standards. You don’t want to invest money in a spark plug that won’t deliver reliability and durability.

Look for a spark plug that is able to improve your gas mileage and provide a faster start. For example, the NGK G-Power Spark Plug, 4-Pack uses a G-power platinum alloy that enhances its performance. The ground and center electrodes are able to retain a precise gap, while also creating a greater spark.

Review the spark plug’s outer shell next. You’ll find the Champion RC12YC Spark Plug uses a special TinTac and ULTRASEAL shell to protect the spark plug from corrosion. Corrosion is a spark plug’s enemy and will lead to the plug needing to be replaced prematurely.

Examine the design of the spark plug’s tip next. For example, the DENSO PLATINUM T T Spark Plugs, 6-Pack has a specially designed twin-tip that increases its ability to ignite. Others are made from a .6 millimeter laser-welded fine platinum that reduces the voltage required to start the engine.

Consider a spark plug that is designed to handle intense conditions if you’re into power sports. The E3 Spark Plugs Power Sports E3 Spark Plug is a great choice for this, as it’s made using a yttrium-enhanced alloy to that reduces side wire temperature by 8%. It’s also made with colder heat ranges, so you can make modifications to increase performance.

DWYM Fun Fact

In 1770, a man by the name of Alessandro Volta was able to ignite a toy gun with a spark from a Leyden jar. This concept was improved upon, and by 1860, a spark plug was created and listed in a patent filed by engineer Jean Lenoir. However, there was still a lot of work that had to be completed to make the spark plug more reliable.

Spark plugs were able to be marketed to the public by 1909, after Robert and Frank Stranahan made the spark plug more effective with a longer life span. Today, there are hundreds of different spark plugs for everything from vehicles to boats to aircraft.

The Spark Plug Buying Guide

  • It’s important that you always double-check that the spark plugs are compatible with your vehicle before you purchase them. There are two ways to do this. You can contact the manufacturer directly and ask a customer service representative, or you can use the compatibility tool at the top of the product page of certain websites. All you need to do is select your car’s year, make and model from the drop-down boxes and click the “check fit” button.
  • YouTube is flooded with step-by-step videos that will visually guide you through changing your machine’s spark plugs, whether that’s your lawnmower or family automobile.
  • If you have a four-cylinder vehicle, you’ll need four spark plugs. Vehicles that have six cylinders require six spark plugs. It’s important to know how many spark plugs your automobile needs before placing an order, otherwise, you may end up ready to do the job without the right number of plugs.
  • There are a few symptoms you need to keep an eye out for that will let you know your spark plugs need replacing. They include a decrease in fuel efficiency, slower acceleration and engine misfires.
  • As you compare the prices for spark plugs, you’ll need to make sure you are comparing the per-piece price. So, if the spark plugs come in a set, you’ll need to divide the total cost of the plugs by the number of pieces in the set. When you do this, you’ll discover that the NGK G-Power Spark Plug, 4-Pack and the DENSO PLATINUM T T Spark Plugs, 6-Pack are among the most affordable. You’ll pay a moderate price per piece for the Champion RC12YC Spark Plug, while the E3 Spark Plugs Power Sports E3 Spark Plug comes in on the higher end.