Denso
0 ratings
Denso 3421 Spark Plugs, (Pack of 1)
genuine image
Denso 3421 Spark Plugs, (Pack of 1)
DENSO's long life spark plug lasts up to three times as long as conventional plugs, ensuring superior ignitability and reliability.
Denso 3421 Spark Plugs, (Pack of 1)
Item #: 103413954

Denso 3421 Spark Plugs, (Pack of 1)

Item #: 103413954

INR 1982

Price Details

Price

INR 1982

M.R.P. INR 1982

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Sunday, July 26
Secured transactionsecured 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
  • fedex
  • dhl
DENSO's long life spark plug lasts up to three times as long as conventional plugs, ensuring superior ignitability and reliability.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
discover payment
visa payment
diners club payment
mastercard payment
american express payment
rupay payment
Ships from Ubuy, Sold by: UBNA Distribution LLC
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Performance
Denso 3421 Spark Plugs deliver optimal ignition and fuel efficiency, ensuring peak performance for your engine while reducing emissions compared to standard plugs.
Durable Design
Engineered with advanced materials, these spark plugs resist wear and corrosion, providing longer lifespan and reliability for your vehicle maintenance needs.
Easy Installation
Designed for straightforward compatibility, Denso spark plugs simplify the installation process, making it convenient for both experienced mechanics and DIY enthusiasts.

Product Details

Shop Denso 3421 Spark Plugs, (Pack of 1) online at a best price in India. B0025UOO6O
Item Weight0.25 lbs (110 grams)

Who Should Buy?

Suitable For
  • Car Enthusiasts

    Ideal for users who prioritize performance and reliability in their vehicles, ensuring optimal engine efficiency.

  • Routine Maintenance

    Perfect for regular maintenance of vehicles, helping to prevent misfires and improve fuel efficiency over time.

  • Cost-Conscious Owners

    Suitably priced spark plugs that provide good value for money without compromising on quality or performance.

Not Suitable For
  • High-Performance Cars

    Not suitable for high-performance or racing vehicles that require specialized spark plugs for enhanced output.

Product Description

Denso 3421 Spark Plugs, (Pack of 1)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are Denso 3421 Spark Plugs and what makes them special?

    Answer: Denso 3421 Spark Plugs are high-performance spark plugs designed for optimal engine performance. They feature a unique platinum center electrode that provides better fuel efficiency and reduces emissions. This advanced engineering helps maintain a cleaner engine by ensuring a consistent ignition spark. Many car enthusiasts and mechanics choose Denso plugs for their reliability in various driving conditions, making them an ideal choice for both everyday drivers and performance vehicles.
  • Question: How do I know if Denso 3421 Spark Plugs are compatible with my vehicle?

    Answer: To determine compatibility, you should check your vehicle's owner's manual or manufacturer's specifications to find the recommended spark plug model. Denso 3421 Spark Plugs are suitable for a wide range of vehicles due to their versatile design. Additionally, you can use online tools or consult with an auto parts specialist who can help you verify compatibility based on your vehicle's make, model, and engine type.
  • Question: How often should I replace my Denso 3421 Spark Plugs?

    Answer: The replacement frequency for Denso 3421 Spark Plugs is generally every 30,000 to 50,000 miles, depending on your driving habits and conditions. Regular checks during routine maintenance can help identify any signs of wear. Signs that replacements may be needed include rough idling, misfires, or decreased fuel efficiency. A timely replacement helps maintain engine performance and fuel economy, ensuring a smoother driving experience.
  • Question: What are the benefits of using Denso 3421 Spark Plugs over other brands?

    Answer: Denso 3421 Spark Plugs are known for their high-quality materials and innovative design, which deliver superior performance compared to many other brands. With features like a platinum electrode, they offer better durability and a stronger spark, which can improve fuel efficiency and reduce emissions. Drivers who prioritize performance and engine longevity often choose Denso plugs for their reliability and effectiveness in enhancing overall engine function.
  • Question: Can I install Denso 3421 Spark Plugs myself?

    Answer: Yes, installing Denso 3421 Spark Plugs can be a straightforward task for those who are familiar with basic automotive maintenance. You'll need some common tools like a spark plug socket and ratchet. Ensure you properly gap the spark plugs according to your vehicle’s specifications before installation. For those inexperienced with car repairs, consulting a professional mechanic or watching instructional videos can provide additional guidance to ensure a proper installation.
  • Question: Do Denso 3421 Spark Plugs improve fuel efficiency?

    Answer: Yes, Denso 3421 Spark Plugs can help improve fuel efficiency by ensuring a more effective ignition process. A consistent and accurate spark translates to better combustion within the engine. As a result, this can lead to improved mileage and reduced fuel consumption. Drivers looking to enhance their vehicle's performance, especially in stop-and-go city driving or during long highway trips, may particularly notice the benefits of improved fuel efficiency.
  • Question: Are Denso 3421 Spark Plugs suitable for high-performance engines?

    Answer: Absolutely! Denso 3421 Spark Plugs are engineered to perform exceptionally well in high-performance engines. Their platinum center electrode provides excellent spark stability and longevity, making them suitable for vehicles that are modified for enhanced performance. Enthusiasts often use these plugs in racing or performance applications, where reliable ignition is critical for maximizing engine output and acceleration.
  • Question: What makes Denso Spark Plugs different from conventional spark plugs?

    Answer: Denso Spark Plugs, including the 3421 model, incorporate advanced materials and technology that distinguish them from conventional spark plugs. Features such as a platinum center electrode and a unique design enhance durability and ignition efficiency. These innovations lead to a more powerful ignition spark, ultimately providing better engine performance, efficiency, and lower emissions compared to standard plugs, which might not offer the same level of engineering.
  • Question: How do I clean Denso 3421 Spark Plugs?

    Answer: Cleaning Denso 3421 Spark Plugs can help maintain their performance, although replacement is often recommended when signs of wear appear. If you choose to clean them, use a wire brush or specialized spark plug cleaner to remove carbon deposits carefully. Inspect for any cracks or excessive wear after cleaning. Regular maintenance, including periodic inspections and cleaning, can help extend the lifespan of your spark plugs and contribute to optimal engine performance.
  • Question: Where can I buy Denso 3421 Spark Plugs in India?

    Answer: You can purchase Denso 3421 Spark Plugs at Ubuy. Ubuy offers a convenient online shopping experience and a variety of automotive parts, including Denso spark plugs, making it easy to find what you need for your vehicle. They also provide detailed product descriptions and customer reviews, helping you make an informed decision while shopping for auto accessories.

Denso Spark Plugs Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4.1/5 1,500 + reviews
Read reviews
PK
Purchase
Verified buyer

“logistcs is very good”

13 June 2026 · via Trustpilot
AN
Akhil
Verified buyer

“Very good and seamless experience, delivery package came in very good condition”

12 June 2026 · via Trustpilot
DK
Dr Kumarasway
Verified buyer

“Heavy import cost and DHL's high delivery fees.”

9 June 2026 · via Trustpilot
JM
J Mama
Verified buyer

“Interesting book and the seller describe it thank you”

8 June 2026 · via Trustpilot
PC
Paritosh
Verified buyer

“Excellent quality and a perfect fit. Description and measurements provided are to the point. Keep them coming more 🤟🏻”

8 June 2026 · via Trustpilot
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.

INR 1982

Order now and get it around Sunday, July 26

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Advanced laser welding process used for durability.
  • Designed for luxury vehicles by top automakers like GM and Toyota.
  • Patented Iridium alloy for enhanced performance.
  • Shrunken center electrode size improves ignitability.
  • Manufactured to OE standards for reliability.
  • 100% pre-fired for guaranteed operation.

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.