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DENSO 3478 Iridium Long Life Spark Plug

(Hyundai Sonata 2011-14, Santa Fe 2013-16, Tucson 2014-15; Lexus IS250 2006-13, IS350 2006-13, RC350 2015-21, RC F 2015-21, RC200t 2016 + 9 more models)

Part of: DENSO Iridium Long Life Spark Plug

Other options in this family: DENSO 3534 DENSO FK16HQR11#4 DENSO SK20R-P11 DENSO 3518 DENSO 3494

Manufacturer

Picture for manufacturer DENSO

Part Number

3478
11 reviews
Sale Price

$16.18

In Stock (10+)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The DENSO 3478 Iridium Long Life spark plug delivers superior ignition performance and extended service life for demanding automotive applications. Featuring advanced iridium technology, this spark plug provides consistent firing even under extreme conditions.

Key Features:

  • Iridium center electrode for exceptional durability and wear resistance
  • Long-life design reduces maintenance intervals and replacement frequency
  • Manufactured to strict OE performance, durability, and emissions standards
  • Consistent spark delivery for optimal engine efficiency
  • Superior ignition reliability across wide temperature ranges
  • Precision-engineered for exact OEM fit and performance

DENSO's iridium spark plugs are engineered to meet or exceed original equipment specifications, ensuring reliable starting, smooth acceleration, and optimal fuel economy throughout their extended service life.

Products specifications

Fits

Hyundai Sonata 2011-14, Santa Fe 2013-16, Tucson 2014-15; Lexus IS250 2006-13, IS350 2006-13, RC350 2015-21, RC F 2015-21, RC200t 2016, RC300 2016-21; Kia Sorento 2012-16, Optima 2011-15, Sportage 2014-15; Nissan 300ZX 1984-89 + 4 more models

Pre-Gap Size

1.1

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Ground Electrode Quantity

1

Manufacturer Heat Range

16

Center Electrode Tip Material

Iridium

Thread Diameter

12.00

Center Electrode Core Material

Copper

Resistance

5000

Ground Configuration

Needle-to-Needle

Reach

26.50

Ground Electrode Tip Design

Platinum Needle

Hex Size

16.0

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Good prices. Reasonable shipping. Thanks.

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easy shopping

good pricing and easy to order online from Autoplicity

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Easy

Good price for great name brand car parts. AEM fuel filter very low price and new. Hope the shipping is as great as the price. :)

Great website and the ordering was easy too. I like the way they show the full price including shipping and tax. Got the confirmation immediately and the shipment notification the next business day. <br>

Great website to maneuver around and great prices! I used amazon.com to check out with them. Great service so far! Thanks!!!! Recommended on my website!

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