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DENSO 3509 Iridium Long Life Spark Plug

(Ford Mustang 2020-22; Toyota Tacoma 2017, Supra 1993; Chevrolet Corvette 1961-62; Mercedes-Benz C230 2003-06, C350 2006, C320 2001-05, C280 2006 + 6 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

3509
5 reviews
Sale Price

$15.50

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The DENSO 3509 Iridium Long Life spark plug delivers superior performance and extended service life for a wide range of vehicles. Featuring a fine 0.4mm iridium center electrode, this plug provides optimal ignitability and durability that outlasts conventional copper plugs by up to three times.

Key Features:

  • Ultra-fine iridium center electrode for improved throttle response and acceleration
  • High melting point iridium alloy resists wear and maintains sharp edges longer
  • 360-degree laser welding ensures superior construction quality
  • Copper core enhances heat dissipation and prevents overheating
  • Manufactured to OE performance, durability, and emissions standards
  • Pre-gapped and ready to install

DENSO's patented iridium technology concentrates spark energy for more complete fuel combustion, resulting in better fuel efficiency and lower emissions. The robust design withstands extreme temperatures and pressures in modern engines, making this an excellent OE replacement or upgrade spark plug.

Products specifications

Fits

Ford Mustang 2020-22; Toyota Tacoma 2017, Supra 1993; Chevrolet Corvette 1961-62; Mercedes-Benz C230 2003-06, C350 2006, C320 2001-05, C280 2006, C240 2001-05, C55 AMG 2005-06, C32 AMG 2002-04; Buick Riviera 1989-93 + 2 more models

Manufacturer Heat Range

20

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Pre-Gap Size

0.8

Ground Electrode Quantity

1

Center Electrode Tip Material

Iridium

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

It was great.

Easy to order process!! Arrived sooner than expected. Part was new, as stated, and worked flawlessly. Will order from this site again in future!!

Quick

The website was easy to use, the pricing looks good. So far, so good.

easiest order that I have ever placed. Price is cheaper than amazon even with shipping added in.

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