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DENSO 3139 U-Groove Spark Plug

(Toyota Tundra 2005-09, Corolla 2005-06, 2009-10, Camry 1992-96, 2002-11, 4Runner 2003-09, RAV4 1996-97, 2001-08, Highlander 2001-10 + 56 more models)

Part of: DENSO U-Groove Spark Plug

Other options in this family: DENSO 3381 DENSO 12-12-9-065-004 DENSO 4085 DENSO 3120 DENSO 3051

Manufacturer

Picture for manufacturer DENSO

Part Number

3139
11 reviews
Sale Price

$4.23

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 3139 is a standard spark plug featuring advanced U-Groove ground electrode technology designed to enhance ignition performance and engine efficiency. This OEM-quality ignition component delivers reliable spark energy for optimal combustion in a wide range of automotive applications.

Key Features:

  • U-Groove ground electrode design provides superior ignitability compared to conventional spark plugs
  • Enhanced spark exposure promotes more complete fuel combustion for improved engine efficiency
  • Standard resistor construction reduces electromagnetic interference (EMI)
  • Precision-engineered center electrode and insulator for consistent performance
  • Copper core center electrode provides excellent heat dissipation and thermal conductivity
  • Durable construction withstands harsh combustion chamber conditions

DENSO's U-Groove technology positions the spark at the edge of the ground electrode rather than beneath it, allowing the flame kernel to expand more freely into the air-fuel mixture. This results in more efficient ignition, smoother engine operation, and better throttle response. Ideal for both original equipment replacement and performance-minded vehicle owners seeking reliable ignition components.

Products specifications

Fits

Toyota Tundra 2005-09, Corolla 2005-06, 2009-10, Camry 1992-96, 2002-11, 4Runner 2003-09, RAV4 1996-97, 2001-08, Highlander 2001-10, Sequoia 2005-09, Sienna 2001-06, Land Cruiser 1998-2007, Avalon 1995, 2000-04, Celica 1992-2005 + 51 more models

Manufacturer Heat Range

20

Pre-Gap Size

1.1

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Center Electrode Tip Material

Nickel

Ground Electrode Quantity

1

Ground Configuration

Standard

Center Electrode Core Material

Copper

Thread Diameter

14.00

Resistance

5000

Ground Electrode Tip Design

U-Groove

Reach

19.00

Hex Size

16.0

Quick Site. Need better Pics of Parts

Very quick service. A+++++

Smooth transaction and a good quality product.

Fast service

1st time, so far so good

I just placed my order, and so far I've enjoyed my experience. The website is very easy to read, and technical assistance helped me locate my correct part. Fingers crossed it's clear sailing from here.

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

Great service. Shipped out the day after I ordered it...plus it was the cheapest of the competition.

I bought a Motive pressure brake bleeder from Autoplicity. I have been looking around for different prices for quite a while, and their price, even with shipping cost, was the lowest. After ordering, I received a notification of shipment and tracking number. The item arrived well packaged, complete, and intact within a few days. I am looking forward to using it.

Cheap prices, great quality, and fast delivery. Autoplicity will continue to receive my patronage.

Easy and fast. Order arrived very fast. Thanks.

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