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NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4

Brand: NGK

4.7 2,200 ratings

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$20.17 with 26 percent savings

Typical price: $27.34

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Purchase options and add-ons

Brand	NGK
Core Material	Iridium
Top Material Type	Metal
Vehicle Service Type	Car

About this item

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
Trivalent Metal Plating; Part number of spark plug inside the box: BKR5EIX-11

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NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4

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Product Description

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response. The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect. Longer insulator nose, the corrugated ribs on insulator prevent flashover, and a triple gasket seal eliminates combustion gas leakage. Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines. Trivalent metal plating. Copper core aids in heat removal.

Product information

Technical Details

Manufacturer

‎NGK

Brand

‎NGK

Model

‎SPARK PLUG

Item Weight

‎1.6 ounces

Product Dimensions

‎3.62 x 3.84 x 0.96 inches

Item model number

‎5464-4PK

Is Discontinued By Manufacturer

‎No

Exterior

‎Machined

Manufacturer Part Number

‎5464-4PK

Additional Information

ASIN

B003BUCKQ8

Customer Reviews

4.7 2,200 ratings

4.7 out of 5 stars

Best Sellers Rank

#20,543 in Automotive (See Top 100 in Automotive)
#158 in Automotive Replacement Spark Plugs

Date First Available

June 17, 2008

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here

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What's in the box

SPARK PLUG

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	This Item NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4	Recommendations NGK (6994) Laser Iridium Spark Plug (4 Pack)	dummy NGK BPR7HIX Iridium Spark Plug (NGK5944)	dummy NGK BPR6EIX Iridium Spark Plug (NGK6637)	dummy Sixity Auto 4 pc NGK Iridium IX Spark Plugs compatible with Toyota Corolla 1.8L 2.4L L4 1998-2012	dummy 5464 BKR5EIX-11 Spark Plug, KAX Double Iridium Spark Plugs 4 Pack Fit for Corolla, Tacoma, Yaris, Prius, 4Runner, Forester, Sonata, Santa Fe, Accent
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	-26% $20.17 Typical: $27.34	$40.67	$11.99	$12.02	$40.99	$17.86
Delivery	Get it Mar 22 - 26	Get it as soon as Monday, Mar 25	Get it Mar 21 - 25	Get it Mar 21 - 25	Get it as soon as Monday, Mar 25	Get it as soon as Monday, Mar 25
Customer Ratings	4.72,200	4.795	5.03	4.63	5.016	4.426
Sold By	MX PowerPlay	OverStockDirect	Sixity Auto	Sixity Auto	Sixity Auto	KAX-AUTO Direct 2
compatible vehicles	Car	—	—	Motorcycle	2012 toyota corolla	—
number of items	4	1	1	1	1	4
thread size	—	—	14 millimeters	14 millimeters	14mm	—
core material	Iridium	Iridium	Iridium	Iridium	Iridium	Iridium
top material	Metal	—	—	—	Metal	Nickel

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Customer reviews

4.7 out of 5

2,200 global ratings

How customer reviews and ratings work

Customers say

Customers like the performance, quality, value, fit and ease of installation of the auto part. They mention that it improves performance, fits snugly and doesn't fall out of plug sockets. They are also happy with ease of install, durability, and gas mileage.

AI-generated from the text of customer reviews

144 customers mention141 positive3 negative

Customers are satisfied with the performance of the spark plugs. They mention that the car runs great so far, improved performance, and improved fuel mileage. Some say that the sluggishness and hesitation during acceleration is gone.

"Really great plugs, works well with my 2008 Suzuki sx4" Read more

"Got em in 24 hrs,,,perfect fit.Car runs ALOT better." Read more

"...I’ve also noticed a slight increase in fuel economy, but that’s no surprise after replacing fouled out plugs...." Read more

"...These made the engine run like new." Read more

65 customers mention58 positive7 negative

Customers like the plug. They say they are great, are suitable for imports, and are the best plugs for Japanese cars. They also say that they are a perfect replacement for OE plugs and a great fit for their vehicles.

"Really great plugs, works well with my 2008 Suzuki sx4" Read more

"Great plugs, and great packaging. In the box you the 4 plugs, each with a small box to keep them from damaging each other...." Read more

"...A very good plug, and about 1/2 the cost of the local auto parts store...Recommended!!" Read more

"...Good plugs." Read more

58 customers mention56 positive2 negative

Customers are satisfied with the quality of the auto part. They mention that it is a very good brand, the replacements are of exquisite quality, and represent the best of the best when compared to other brands. Some say that the product is top of the line and a great replacement for the stock ones.

"Great quality from a great brand. These I have used many times and never an issue...." Read more

"Quality, good price, arrived fast and were in perfect condition." Read more

"Good, high quality spark plugs for a Toyota" Read more

"...The replacements are of exquisite quality and represent the best of the best when compared to others...." Read more

45 customers mention43 positive2 negative

Customers appreciate the value of the auto part. They mention that it is well-priced and is in good condition. Some customers also say that the product is brand new and perfect.

"...properly sized and they have proven to be long lasting at a very good price point" Read more

"Quality, good price, arrived fast and were in perfect condition." Read more

"...Price for four plugs was good too! Car is running great with quite a few miles on it...." Read more

"Came on time. Good price for quality brand. A very small percentage said beware of counterfits. I didn't install yet but they look good to me." Read more

33 customers mention28 positive5 negative

Customers like the fit of the spark plugs. They mention that they fit snugly and don't fall out of plug sockets. Some say that the threads don' t cross-thread easily.

"Got em in 24 hrs,,,perfect fit.Car runs ALOT better." Read more

"...These I have used many times and never an issue. They come properly sized and they have proven to be long lasting at a very good price point" Read more

"...Top notch oem quality that don't cross thread easily and seat well...." Read more

"...They fit snugly and don't fall out of plug sockets, and the threads reply with a pretty tangible force when completely tightened...." Read more

20 customers mention20 positive0 negative

Customers find the installation of the auto part to be easy. They mention that the replacement was simple and required no special effort. Customers also appreciate the smooth installation of new Iridium plugs.

"Fits 2009 Subaru forester. Not a difficult install if you have some mechanical skills...." Read more

"...I'm very pleased it was an easy and profitable installation." Read more

"...with beat-up jalopies!4 cylinders = 4 plugs. Replacement was dead simple, easy and required no special effort, like the #2 Down O2 Sensor I..." Read more

"...With the right tools this job was incredibly easy and the entire thing was done in under an hour and a half...." Read more

18 customers mention15 positive3 negative

Customers like the durability of the auto part. They mention that it's long-lasting, has no abnormal wear, and runs smoother. Some say that the plugs should last much longer.

"...They come properly sized and they have proven to be long lasting at a very good price point" Read more

"...with a substantially higher melting point, so these plugs are more durable and should last longer than platinum at least in theory...." Read more

"...Once in you can actually get up to 200,000 miles the iridium’s. last a long time worth the extra money...." Read more

"...These plugs should last a long time!" Read more

17 customers mention17 positive0 negative

Customers are satisfied with the gas mileage of the auto part. They mention that it improves the fuel economy, resulting in better mpg and lower emissions.

"...I'm sure my gas mileage will also improve." Read more

"I like the performance of them, power and mileage which makes makes them awesome" Read more

"...I hope (but am pretty sure) the fuel usage is improved, but too early to tell." Read more

"...every 10k Km while Iridium lasts easily 50k KM and a saving of approximately 20% of gas due to better responsiveness of the engine and more power in..." Read more

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Kai vesprey

Exactly what you see is what you get

Reviewed in the United States on December 13, 2023

Number of Items: 4Verified Purchase

Really great plugs, works well with my 2008 Suzuki sx4

Helpful

Amazon Customer

Perfect fit,,,pre gapped

Reviewed in the United States on November 18, 2023

Number of Items: 4Verified Purchase

Got em in 24 hrs,,,perfect fit.Car runs ALOT better.

Helpful

charles Rand

Great Quality

Reviewed in the United States on August 12, 2023

Number of Items: 4Verified Purchase

Great quality from a great brand. These I have used many times and never an issue. They come properly sized and they have proven to be long lasting at a very good price point

2 people found this helpful

Helpful

Eric New

Works good in riding mowers

Reviewed in the United States on December 6, 2023

Number of Items: 4Verified Purchase

riding mowers start much better a bargain. Must buy

Helpful

PNWShawn

No more rough idle! My engine is smooth and quiet once again.

Reviewed in the United States on November 15, 2019

Number of Items: 4Verified Purchase

My Subaru had been running a little rough and it was time for new spark plugs so I decided to go for the upgrade and try iridium plugs. The old plugs had about 50k miles on them and were long overdue for replacement. The OEM plugs were platinum and I had been told that platinum plugs can last as long as 100k miles. That certainly wasn’t the case here as after 50k they were all fouled. I installed the new iridium plugs and suddenly my engine was like new again! The idle was quiet and smooth like it should be. I’ve also noticed a slight increase in fuel economy, but that’s no surprise after replacing fouled out plugs. Having only put about 1k miles on them so far I can’t say whether the BKR5EIX-11 Iridium IX Spark Plugs are any better than the OEM platinum plugs, but they’re about the same price so why not give them a try? Iridium is a much harder metal than platinum, with a substantially higher melting point, so these plugs are more durable and should last longer than platinum at least in theory. They don’t run any hotter than the OEM plugs, but with a finer electrode they require less power to generate a spark, which means they’re more efficient. I expected them to be pre-gapped, but since they’re not the OEM plugs for my Impreza 2.5i they weren’t gapped correctly for my car. I don’t know if it’s because iridium is a much harder metal than platinum and copper, or just that my hands aren’t as strong as they used to be, but I really had a tough time setting the proper gap of 0.44. Once I finally got them gapped I decided to save a lot of money and install them myself. I checked an online Subaru forum and some people said it was very difficult to change out the plugs on a 2008 Impreza. While I wouldn’t say it was easy, I definitely would not say it was all that hard. As long as you have a standard 5/8” spark plug socket, a 3” or 4” extension, a swivel bit, and a little bit of patience, I don’t see any reason to pay a shop or dealership a ridiculous sum of money to install them for you. Perhaps if you consider your time extremely valuable or maybe you spent a lot on your manicure it would be worth it, but you don’t need to be a master mechanic to install new plugs in an Impreza. If you prefer to leave such tasks to the professionals, no judgement here. I’m just a little short on cash right now and the dealership wanted an awful lot of money to swap out four spark plugs.

15 people found this helpful

Helpful

John Unruh

Smoother sounding four cylinder

Reviewed in the United States on January 29, 2024

Number of Items: 4Verified Purchase

The spark plugs give smoother sound than regular plugs to my four cyclinder when stepping hard on the gas. From what I read, they give a tiny bit less horsepower, but make up for it by longevity. A good idea if your spark plugs are located in a hard to reach place.

Helpful

Paul K.

Works like they should

Reviewed in the United States on September 20, 2023

Number of Items: 4Verified Purchase

Quality, good price, arrived fast and were in perfect condition.

One person found this helpful

Helpful

David Painter

Great plugs

Reviewed in the United States on October 23, 2023

Number of Items: 4Verified Purchase

NGK Iridium plugs last and last. In my Prius I relaced the OEM plus at 70k miles and this is my 2nd replacement at 145k miles. I noticed that my engine immediately ran smoother after installation.

2 people found this helpful

Helpful

Top reviews from other countries

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Amazonprimeuser

Better fuel mileage

Reviewed in Canada on December 29, 2023

Number of Items: 4Verified Purchase

Good plugs

juan cota

Buen producto

Reviewed in Mexico on April 7, 2021

Number of Items: 4Verified Purchase

Excelente calidad

Translate review to English

C. C

Does its Job Well!

Reviewed in Singapore on April 2, 2021

Number of Items: 4Verified Purchase

Changed spark plugs on 2008 Mazda3 1.6 with this set of 4 spark plugs. Works very well and no more stuttering engine during idle. Highly recommended!

xsx

OEM Fit.

Reviewed in Canada on October 2, 2023

Number of Items: 4Verified Purchase

Excellent.

Marc

Excellent spark plugs

Reviewed in Canada on August 20, 2023

Number of Items: 4Verified Purchase

This pack of 4 Iridium spark plugs were literally half the price of what Canadian Tire wanted for the exact same plugs. They work great (as expected). Save your money and buy them from Amazon instead of in the stores.

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