DENSO PK20TT PLATINUM T T Spark Plugs, 6-Pack

Last updated date: June 29, 2020

DWYM Score

DENSO PK20TT PLATINUM T T Spark Plugs, 6-Pack

Why Trust The DWYM Score?

DWYM is your trusted product review source. Along with our in-house experts, our team analyzes thousands of product reviews from the most trusted websites. We then create one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in the category.

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

Featuring a platinum-titanium designed twin tip, this spark plug is superior to other models on the market. It improves ignitability and offers the reliability you're looking for. Both platinum and titanium are also known for their ability to prevent corrosion and erosion. In our analysis of 15 expert reviews, the DENSO DENSO PLATINUM T T Spark Plugs, 6-Pack placed 4th when we looked at the top 10 products in the category. For the full ranking, see below.

Editor's Note June 29, 2020:
Checkout The Best Spark Plug for a detailed review of all the top spark plugs.

Expert Summarized Score
3 expert reviews
User Summarized Score
478 user reviews
Our Favorite Video Reviews
What experts liked
The Denso (4503) PK16TT Platinum TT Spark Plug is our choice for the best budget-friendly spark plug as it provides nearly all the performance-enhancing features of iridium but at a fraction of the cost. While a platinum spark plug such as this can provide less longevity than their iridium counterparts, the Denso 4503 isn’t far behind. It uses a platinum disc and electrode tip to provide solid performance. Those who purchased and reviewed this spark plug appreciated that it was compatible with a number of different vehicle makes and models, and came highly recommended by their mechanic. A couple of reviewers noted that they needed to re-gap their plug to fit, but most had no issues. With a price tag of about $3, this spark plug is a solid choice for those looking for a spark plug option on a budget. It has a rating of 4.5 on Amazon with nearly 400 people reviewing it, which we think goes a long way in convincing motor heads that this budget-friendly pick is just as good at improving engine performing as its more expensive counterparts.
- Motor Day
It works faster compared to other plugs. It can help you save fuel. It has dielectric strength. It can withstand any stress.
- The Washington Note
If you’re in the market for solid all-around spark plugs that are easy on your wallet, look no further then Denso 4504 PK20TT Platinum Spark Plugs. These value-priced platinum plugs pack a whole lot of performance, efficiency, and durability for a downright reasonable price. Featuring a dual-platinum construction, with a platinum disc and platinum electrode tip, these spark plugs provide a reliable spark to generate smooth, reliable combustion of the air-fuel mixture. This translates to great engine dependability, fuel efficiency, and performance. Another impressive feature is purified alumina powder, which is used as an insulator to increase thermal conductivity for maximum longevity. There are a few faults that we found with these double-platinum spark plugs. Occasionally, the gap was incorrectly set on some of the plugs. This is why it’s critical that you inspect the gap and adjust it accordingly. In addition, these double-platinum plugs cannot match the quality, performance, and longevity that iridium spark plugs boast. Nonetheless, we believe that Denso 4504 PK20TT Platinum Spark Plugs are some of the best affordable spark plugs for your car, truck, or SUV.
- The Drive
What experts didn't like
It does not work on all types of cars. May cause misfire. May not work on bikes.
- The Washington Note

From The Manufacturer

The patented DENSO Platinum TT Spark Plug has a twin-tip design to improve ignitability and extend reliability. Until recently, this twin-tip design could only be found in the most technologically advanced automobiles. But now DENSO is offering this cutting-edge technology in a platinum-titanium design. Conventional platinum plugs use platinum for only the center electrode, while the DENSO Platinum TT Spark Plug features platinum on the center electrode and a titanium-enhanced alloy on the ground electrode for increased durability and minimized tip erosion. Both precious metals fight corrosion and erosion, ensuring superior spark performance and maximum spark plug life capable of extended operation in excess of 60,000 miles. In addition, the secondary tip on the ground electrode results in less obstruction of spark growth, while still maintaining the same gap. With this in mind, if your vehicle exhibits bad spark plug symptoms including slow acceleration, poor fuel economy, or engine misfires, consider DENSO for your performance spark plug replacement.

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 an 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 literally 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 4-cylinder vehicle, you’ll need four spark plugs. Vehicles that have 6-cylinders require six spark plugs. It’s important to know how many spark plugs your automobile needs before place 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, a slower acceleration and engine misfires.
  • As you compare the price for a spark plug, 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.