Denso Spark Plug 5309

Brand: Denso Car Parts

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Part Number: 5309
Part Location: U.S.
Availability: *Special Order
Delivery: 2 - 3 Weeks

Retail: $20.99

Price: $19.99

You Save: $1.00

Electrode Core Material

Copper

Electrode Tip Material

Iridium Rhodium Alloy

Electrode Type

U-Groove

Insulator Type

Quantity

Single

Reach

0.748 Inch

Resistor

Seat Type

Tapered

Thread Size (IN)

0.472 Inch

Thread Size (MM)

12 Millimeter

Wrench Diameter

5/8 Inch

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Denso Spark Plug

Spark Plug; Iridium Power; OE-Replacement; With Resistor; Copper; iridium; Standard; Single

MPN: 5309

Iridium Power® best demonstrates its performance improvement during Acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding Temperatures greater than 4000 Degree Fahrenheit. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs. To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required Voltage.

Resistor: Yes

Electrode Type: U-Groove

Electrode Core Material: Copper

Electrode Tip Material: Iridium Rhodium Alloy

Insulator Type: OEM

Thread Size (IN): 0.472 Inch

Thread Size (MM): 12 Millimeter

Reach: 0.748 Inch

Seat Type: Tapered

Wrench Diameter: 5/8 Inch

Quantity: Single

Features

Tapered Cut, U-Groove Ground Electrode
Worlds Smallest 0.4 Millimeter Iridium Center Electrode
360 Degree Laser Welding Assembly Process
Delivers Maximum Spark Energy While Withstanding Temperatures Greater Than 4000 Degree Fahrenheit
Features Combine To Achieve Higher Ignitability And Require Lower Spark Voltage Than Ever Before
Acceleration Improves In Comparison With Normal Plugs
Unsurpassed Center Electrode Durability
Improved Spark Ignition For Maximum Combustion, Even With Lean Air-Fuel Mixtures
Available For Many Performance And Power Sports Applications
Limited 90 Day Warranty

Specifications of Denso Spark Plug 5309
Electrode Core Material	Copper
Electrode Tip Material	Iridium Rhodium Alloy
Electrode Type	U-Groove
Insulator Type	OEM
Quantity	Single
Reach	0.748 Inch
Resistor	Yes
Seat Type	Tapered
Thread Size (IN)	0.472 Inch
Thread Size (MM)	12 Millimeter
Wrench Diameter	5/8 Inch