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Ignition
Spark plugs
DENSO part number: IWF20

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Spark Plug

DENSO part number: IWF20

Where to buy?

GTIN/EAN

042511053786, 042511537842, 1004251153784

Packing unit

Quantity per packing unit

Status

Normal

Replaces DENSO part numbers:

W20FPR-ZU

W20FS-ZU

Show all specifications

Part specifications

Technical Information

Ground:TAPERCUT. Terminal Shape:Removable

Description

Iridium Power

For OE number

99906910X9008

Connector type

Removable SAE

Diameter [mm]

Spanner Size

20.6

Tightening Torque [Nm]

Net Weight [g]

Country Specific Design

Japan

Spark Plug

1 - Earthed Electrode

Thread Length [mm]

12,7

Gross Weight [g]

Alternative item

Catalogues and marketing materials

Browse the Downloads Area section

OE numbers

DENSO

267700501

267700-5010

5378

+18

General product information

Known as the ‘heart of the engine’, spark plugs play a key role in the ignition and performance of the entire engine. The well-timed combustion of the fuel-air mixture of gasoline and oxygen is what generates power in gasoline engines. The precise timing of the spark created by the spark plug ignites the fuel, triggering combustion.

To create this spark, a high voltage is passed between the centre electrode and ground electrode of the spark plug. This voltage breaks down the natural insulation between these electrodes and an electrical spark is generated. Although this strong spark only lasts for about 1/1,000 of a second, it has to be precisely and reliably timed to trigger the combustion of the fuel-air mixture.