- Home Page /
- Auto & Tires /
- Automotive Replacement Parts /
- Engine & Powertrain Replacement Parts /
- Ignition and Tune Up /
- Spark Plugs and Wires /
- Iridium Spark Plugs /
- Denso (3421) SK20HR11 Iridium Long Life Spark...
0 ratings
Item #:
22942952
Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug Fits select: 2006 HONDA CIVIC, 2005-2015 TOYOTA TACOMA
85% of respondents would recommend this to a friend
Item #:
22942952
AUD 52
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
Afterpay Information
Split your bill into 4 payments of AUD 13 interest-free
Add the item to your cart
Select Afterpay at checkout
Fill in your details
Complete your first payment
and pay the remaining in easy instalments or according to the payment plan you selected
Here’s why you should Afterpay it
Get everything you need now..
Shop thousands of brands and millions of products, online and in-store.
Pay over six weeks.
Make the first payment upfront and the rest over time. Always interest-free when you pay it in 4.
No fees when you pay on time.
We’ll send you reminders and cap late payments to help you get back on track.
(1) Terms and conditions. apply. (2) Installment Agreement. (3) Eligible for customers in. Australia, (4) Your final payment plan may vary depending on your credit history.
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Only 12 items left in stock.
Order now and get it around Thursday, November 12
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Buy Now Pay Later
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110 V-120 V). Recommended power converters Buy Now.
What Stands Out
Long Life
The Denso Iridium SK20HR11 offers extended performance, ensuring optimal engine efficiency for up to 100,000 miles, reducing the frequency of replacements and saving you time and money.
High Durability
Constructed with robust iridium material, this spark plug withstands extreme conditions, promoting better ignition and overall engine health, making it a reliable choice for various driving conditions.
Precise Fit
Engineered to fit select models including 2006 Honda Civic and 2005-2015 Toyota Tacoma, ensuring easy installation and enhanced performance tailored specifically for these vehicles.
Product Details
- Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug
| Manufacturer part number | 3421 |
| Compatible cars | •2000-2006 Honda Insight Base Hatchback 3 1.0L ELECTRIC/GAS •2003 Infiniti FX35 Base Sport Utility 4 3.5L GAS •2003 Mercedes-Benz E55 AMG Base Sedan 4 5.4L GAS •2003 Mercedes-Benz E55 AMG Base Sedan 4 5.5L GAS •2003 Mercedes-Benz S55 AMG Kompressor Sedan 4 5.5L GAS •2003 Mercedes-Benz SL55 AMG Kompressor Convertible 2 5.5L GAS •2003-2005 Mercedes-Benz S55 AMG Base Sedan 4 5.4L GAS •2003-2007 Mercedes-Benz SL55 AMG Base Convertible 2 5.4L GAS •2003-2009 Toyota 4Runner Limited Sport Utility 4 4.7L GAS |
| Vehicle fitment type | Specific |
| Material | Iridium |
| Brand | DENSO |
| Vehicle make | Honda, Toyota, BMW, Cadillac, Lexus, Nissan, Volvo, Mitsubishi, Porsche, Saab |
| Vehicle model | Civic |
| Vehicle year | 2006, 2005, 2015, 2021, 2003, 2013, 2007, 2004, 2010, 2008, 2011, 2012, 2009, 2017, 2018, 2019 |
| Count per pack | 1 |
| Automotive parts division | Direct Replacement |
| Items included | SPARK PLUG |
| Model | 3421 |
| Vehicle type | Car |
| Item Weight | 0.4 lbs (180 grams) |
Who Should Buy?
-
Long Distance Drivers
Those frequently driving long distances would benefit from improved fuel efficiency and longer-lasting performance.
-
High Performance Vehicles
Performance enthusiasts looking for enhanced throttle response and improved ignition would find this spark plug ideal.
-
Regular Maintenance
Car owners focused on regular maintenance will appreciate the longevity and reliability of these iridium spark plugs.
-
Budget-Conscious Shoppers
Cost-sensitive individuals may find this premium spark plug beyond their budget compared to standard alternatives.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How to Shop Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Online From Ubuy?
Answer: It’s easy to shop Denso (3421) SK20HR11 Iridium Long Life Spark Plug, online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
Question:
Is Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Available to Shop Online in Australia?
Answer: Yes, at Ubuy Australia this product is available for you to shop at a reasonable price. The Denso (3421) SK20HR11 Iridium Long Life Spark Plug, is not available locally but you can trust us with our express shipping services. -
Question:
How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
DENSO Iridium Spark Plugs Editorial Review
Denso (3421) SK20HR11 Iridium Long Life Spark Plug is a high-quality ignition component designed to enhance performance in select vehicles like the 2006 Honda Civic and 2005-2015 Toyota Tacoma. This spark plug features a durable iridium material, which ensures a longer lifespan compared to conventional plugs. Many users appreciate the significant improvement in fuel efficiency and engine performance after installation. It fits a variety of cars, showcasing its compatibility across different brands, including Honda and Toyota. This product guarantees a smooth and efficient ignition, contributing to overall vehicle reliability and performance, making it a solid choice for vehicle maintenance.
Customer Reviews & Ratings
19 customers ratings
-
5 Star
95%
-
4 Star
5%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Compatible with various Honda and Toyota models
- Made from durable iridium material
- Longer lifespan than traditional spark plugs
- Improves fuel efficiency and engine performance
- Easy direct replacement installation
Cons
- May not be suitable for all vehicle models
Platform Trust & Buyer Confidence
L
Laura
Verified buyer
“The product is excellent, the shopping was fast, and everything went well! I really recommend buy from this seller.”
20 October 2026 · via Trustpilot
KC
Kerrie
Verified buyer
“I wanted to buy this beautiful antique style tray and the only place I could find it was in the USA and I live in Australia. I ordered it and it came promptly and is absolutely beautiful. I am so happy!”
21 October 2026 · via Trustpilot
JM
James
Verified buyer
“Great experience really pleased the way you track everything and I can see where it is and what's happening Other companies did not want to send it to me because it came under dangerous goods But you went through all the correct procedures and got it to me in Australia Thank you”
24 October 2026 · via Trustpilot
H
Helen
Verified buyer
“Communication between the supplier and the buyer was excellent and i am very happy with my products”
27 October 2026 · via Trustpilot
R
Riki
Verified buyer
“Reputable and reliable Had items from overseas that weren't readily available in Aus. Ordering was easy. Parcels were fast. They kept me updated on status. Got exactly what I wanted and as it was described and pictured. Freight was a good price considering it was international. Would use them again if I require anything from USA.”
31 October 2026 · via Trustpilot
WHY SHOP WITH US
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
AUD 52
Order now and get it around Thursday, November 12
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 12 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.