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Denso (3381) K20HR-U11 Traditional Spark Plug, Pack of 1

Brand: Denso

4.4 301 ratings

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Amazon's Choice in Automotive Performance Spark Plugs by Denso

$5.09

Available at a lower price from other sellers that may not offer free Prime shipping.

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Purchase options and add-ons

Brand	Denso
Core Material	Copper
Thread Size	14 millimeters
Top Material Type	Metal

About this item

K20HR-U11
Increases engine performance and throttle response
Efficient fuel consumption
Improved cold-starting
Stable combustion during idling

› See more product details

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Denso (3381) K20HR-U11 Traditional Spark Plug, Pack of 1

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LEXIVON 5/8" Swivel Magnetic Spark Plug Socket, 3/8" Drive x 10" Total Length | Enhanced Magnetic Design with Thin Wall Socke

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Top Brand: Denso

Highly Rated

100K+ customers rate items from this brand highly

Trending

50K+ orders for this brand in past 3 months

Low Returns

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From the manufacturer

About us

DENSO is a global company focused on advanced mobility that positively changes how the world moves and contributes to greater well-being. As a global Fortune 500 company, we have a broad product portfolio and widespread global impact. We are focused on the development of core technologies in four fields to create new value and influence the future of mobility. DENSO's network spans across 35 countries and regions allowing us to share diverse perspectives and opinions to deliver global and regional solutions to meet societal needs.The DENSO brand is built on delivering more Quality and Reliability. Whether supplying the world’s automakers with reliable OE parts, or developing aftermarket, DENSO’s line of products are built to deliver superior all-around performance every day. At DENSO we’ve taken everything we have learned as an OE manufacturer and applied it to our aftermarket product lines. Every component that leaves our factories has been designed with precision, manufactured to OE standards. At DENSO, we’re constantly striving to break new ground with innovative solutions for today’s demanding automotive needs. All of our products are built to OE-standards and incorporate the upgrades — an OE manufacturer can make. DENSO First Time Fit products are manufactured to give you the right part and the right fit … the first time, every time.

Product Description

Denso Spark Plug Denso's standard plugs have always offered a patented U-groove ground electrode producing for a larger, hotter spark. Copper core for better thermal conductivity. Machine rolled threads to reduce cross-threading and seizing . The plug insulator is constructed of purified alumina powder for extreme stress with 5 ribs to prevent flashover. Technical Specifications - 14mm Thread, 26.5mm (1.04") Reach, 5/8" (16mm) Hex Size, Gasket Seat, Resistor, Solid Terminal, Projected Electrodes, U-Groove Ground Electrodes, .044" (1.1mm) Gap

Product information

Technical Details

Manufacturer

‎Auto Extra

Brand

‎Denso

Item Weight

‎1.6 ounces

Item model number

‎DEN3381

Batteries

‎Lithium Metal batteries required.

Is Discontinued By Manufacturer

‎No

Manufacturer Part Number

‎062110040312

OEM Part Number

‎0

Position

‎Left

Additional Information

ASIN

B0012Q4H96

Customer Reviews

4.4 301 ratings

4.4 out of 5 stars

Best Sellers Rank

#102,530 in Automotive (See Top 100 in Automotive)
#42 in Automotive Performance Spark Plugs

Date First Available

January 2, 2007

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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	This Item Denso (3381) K20HR-U11 Traditional Spark Plug, Pack of 1	Recommendations SET (6) NEW For Standard Spark Plugs K20HRU11 3381	dummy 6 pc NGK Iridium IX Spark Plugs compatible with Toyota Tacoma 4.0L V6 2005-2015	dummy Denso (3297) SK20R11 Iridium Spark Plug, Pack of 1	dummy NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW	dummy 6 PCSNEW -- DENSO #3381 -- U-GROOVE - Standard Spark Plugs -- K20HR-U11
	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	$5.19	$22.96	$55.06	$8.97	$38.84	$30.18
Delivery	Get it as soon as Saturday, May 11	Get it May 21 - 22	Get it as soon as Saturday, May 11	Get it as soon as Saturday, May 11	Get it as soon as Monday, May 13	Get it May 8 - 13
Customer Ratings	4.4301	4.75	4.681	4.6871	4.72,728	4.691
Value for money	4.0	—	4.8	4.3	4.4	5.0
Mileage	4.0	—	4.9	4.4	4.3	4.8
Sold By	Amazon.com	autopart00988	Sixity Auto	Amazon.com	G.P.S.	Newparts
compatible vehicles	—	2003-2010 Replacement For TOYOTA 4RUNNER V6 4.0L 24VALVE 1GR-FE ENGINE ONLY 2007-2009 Replacement For TOYOTA FJ CRUSIER V6 4.0L 24VALVE 1GR-FE ENGINE ONLY 2005-2016 Replacement For TOYOTA TACOMA V6 4.0L 24VALVE 1GR-FE ENGINE ONLY 2004-2011 Replacement For TOYOTA TUNDRA V6 4.0L 24VALVE 1GR-FE ENGINE ONLY	—	—	Car	Car
number of items	1	6	1	1	6	1
core material	Copper	Copper	Iridium	Iridium	Iridium	Copper

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Customer reviews

4.4 out of 5

301 global ratings

How customer reviews and ratings work

Customers say

Customers like the quality, value, ease of installation, and performance of the spark plug. For example, they mention that it works great, it's cheap to replace, and that the plug tool makes the job a breeze. That said, they say the engine runs smoother with the new plugs.

AI-generated from the text of customer reviews

56 customers mention51 positive5 negative

Customers are satisfied with the quality of the spark plug. They mention that it works as intended, is a real testament to the quality, and is able to fire solidly. Some say that the plugs are a good stock plug and a reliable brand.

"Great product and super price" Read more

"...A real testament to the quality of the plug." Read more

"...Fit just like original. I could tell an improvement when I first started the engine. It started quicker and idled smoothly." Read more

"...I wouldn’t purchase these anywhere else but Amazon great price and great product. These are the same exact plugs that the dealership sells." Read more

19 customers mention19 positive0 negative

Customers appreciate the value of the spark plug. They mention it's a factory plug at a good price, and it'll be cheap to replace.

"Great product and super price" Read more

"...I wouldn’t purchase these anywhere else but Amazon great price and great product. These are the same exact plugs that the dealership sells." Read more

"Great Spark Plug from Japan. They're OEM, don't cost much, and come pre gapped...." Read more

"Good for the money 💰..." Read more

8 customers mention8 positive0 negative

Customers find the installation of the spark plug to be easy. They mention that the plugs install smoothly with anti-seize, and the gapping was relatively consistent. Some say that the sparkplug tool makes the job a breeze.

"Easy to put in my Tacoma. No misfires, work fine." Read more

"...They install smoothly with anti-seize, and the plug gapping was relatively consistent with about .006 variation...." Read more

"OEM plugs, no problem with installation...." Read more

"OEM for 2004 Toyota 4Runner V6, spark plug change is an easy job, takes roughly 1 hr at a leisurely pace. You will need a 5/8 in spark plug socket" Read more

8 customers mention6 positive2 negative

Customers like the performance of the spark plugs. They mention that the engine runs smoother, starts quicker, and idles more smoothly.

"...It started quicker and idled smoothly." Read more

"...I like the performance of these plugs. Engine runs smoother when cold and has good acceleration...." Read more

"...it took a lot of troubleshooting to figure out why the FJ was running so poorly after getting the new plugs...." Read more

"Truck ran smoother with the new spark plugs" Read more

6 customers mention6 positive0 negative

Customers like the gap of the spark plug. They say it's already gapped correctly and adjusts easily with a spacing gauge.

"Great Spark Plug from Japan. They're OEM, don't cost much, and come pre gapped...." Read more

"...They install smoothly with anti-seize, and the plug gapping was relatively consistent with about .006 variation...." Read more

"...They were already gapped correctly so I didnt even need to bother gapping them." Read more

"What else can you say about spark plugs...they gap, they fit, they work. I'd buy them again and probably will." Read more

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Shannon Duncan

Spark up my life

Reviewed in the United States on August 14, 2023

Size: 1 Count (Pack of 1)Verified Purchase

Great product and super price

Helpful

Joe Fish

145,000 miles!!!!!!

Reviewed in the United States on August 11, 2013

Size: 1 Count (Pack of 1)Verified Purchase

I bought my 4Runner from the dealer with 110,000 miles on it and was told they did the necessary tune ups. Needless to say, the car ran find and I figured, since theses are copper plugs I would replace the plugs about every 30,000 miles for normal tune up. When I pulled the plugs, I could not believe what I saw. The plugs were original (Denso on passenger side and NGK on drivers side like the factory installs) and had gaps of 0.50 to 0.65 compared to the preset gap of 0.39 to 0.40. The plugs were obviously very old and far out of spec yet the 4Runner kept on running. It even recently passed smog. I have never seen old copper plugs like this last this long and still be running. A real testament to the quality of the plug.

7 people found this helpful

Helpful

Tom

Factory Replacements hard to beat

Reviewed in the United States on June 23, 2023

Size: 1 Count (Pack of 1)Verified Purchase

At 74,000 miles was time to change plugs, added these as they are direct replacements of factory. My Tacoma definitely has a bit more pep and improved milage showed on the last tank.

Helpful

Fogger_man

OEM Plugs!

Reviewed in the United States on March 20, 2020

Size: 1 Count (Pack of 1)Verified Purchase

These are the exact spark plugs used in the factory. OEM for my 2007 Toyota Tacoma 4.0L. They came nicely packaged and all pregapped to about .042. Fit just like original. I could tell an improvement when I first started the engine. It started quicker and idled smoothly.

2 people found this helpful

Helpful

John Wedmore

Do not buy these

Reviewed in the United States on February 4, 2024

Size: 1 Count (Pack of 1)Verified Purchase

Plugs arrived loose (outside individual boxes within mailer) which I should have immediately returned. I went through and installed them in my truck anyway after checking gap and regapping to spec and torque requirements and immediately upon firing the vehicle up it had a check engine light and multiple misfires. Went through the whole plug install process again to check if install was improper, it wasn’t, and ended up going to dealership to buy directly from Toyota. Repeated the install process with new plugs and misfire/idle problems disappeared.

In short, do not buy spark plugs from Amazon, not worth the risk of serious damage to your vehicle. I’m upset that I missed the return window on these but hopefully this review saves someone from making the same mistake I did.

Google search “Amazon bad spark plugs” and you’ll see thousands of results describing exactly what u went through with these plugs. Never buying automotive parts from Amazon again after this experience

2 people found this helpful

Helpful

Ryan & Cass

Replacement for my 2010 Tacoma 4x4

Reviewed in the United States on July 6, 2019

Size: 1 Count (Pack of 1)Verified Purchase

I bought these plugs on here due to their cheaper cost to purchase over the dealership. I wouldn’t purchase these anywhere else but Amazon great price and great product. These are the same exact plugs that the dealership sells.

Helpful

Wander Miguel Hernandez

Producto original Denson

Reviewed in the United States on February 11, 2023

Size: 1 Count (Pack of 1)Verified Purchase

Este producto es muy bueno, son el tipo de remplazo que establece el fabricante, quedaron perfectamente en mi toyota vitz de tres pistones. Las recomiendo.

Helpful

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One Trashy Lady

Works in 13 Tacoma

Reviewed in the United States on October 25, 2021

Size: 1 Count (Pack of 1)Verified Purchase

Easy to put in my Tacoma. No misfires, work fine.

Helpful