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DENSO 3515 Iridium Long Life Spark Plug

(Toyota Corolla 1975-79, Supra 1993; Mercedes-Benz E350 2021-23, E300 2019, E400 2017-18, E450 2020-23; Mitsubishi Eclipse 2000-05 + 3 more models)

Part of: DENSO Iridium Long Life Spark Plug

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

Manufacturer

Picture for manufacturer DENSO

Part Number

3515
8 reviews
Sale Price

$17.25

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The DENSO 3515 Iridium Long Life spark plug delivers superior ignition performance and extended service life for demanding automotive applications. Engineered with DENSO's advanced iridium technology, this plug features an ultra-fine 0.6mm iridium center electrode that requires lower voltage to fire, ensuring reliable starts and consistent performance across a wide range of operating conditions.

Key Features:

  • Premium iridium construction provides exceptional durability and wear resistance
  • Ultra-fine center electrode delivers improved ignitability and fuel efficiency
  • Manufactured to OE specifications for performance, durability, and emissions compliance
  • Extended service life reduces maintenance frequency and long-term costs
  • Superior anti-fouling properties maintain consistent performance
  • Precision-engineered ground electrode design optimizes flame kernel growth

DENSO iridium spark plugs are trusted by automotive professionals and enthusiasts worldwide for their proven reliability and performance. Each plug undergoes rigorous quality testing to ensure it meets the strictest OEM standards for fit, function, and longevity.

Products specifications

Fits

Toyota Corolla 1975-79, Supra 1993; Mercedes-Benz E350 2021-23, E300 2019, E400 2017-18, E450 2020-23; Mitsubishi Eclipse 2000-05; Audi A3 2009-13, A3 Quattro 2009-13; Bentley Continental 2011-13

Manufacturer Heat Range

20

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Pre-Gap Size

0.8

Center Electrode Tip Material

Iridium

Ground Electrode Quantity

3

Center Electrode Core Material

Copper

Thread Diameter

14.00

Resistance

5000

Ground Configuration

Needle-to-Needle

Reach

26.50

Ground Electrode Tip Design

Platinum Needle

Hex Size

16.0

No issues, really easy, product met all expectations, build well.

Smooth

So far, so good. Anxious to receive the product. Product delivered quickly and accurately. Thanks.

Very fast shipping plus I saved a ton of money on the same lift kit I would have purchased locally!

Quick and easy. Best price I found - shipping too!

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