Description

DENSO IXUH22I 5356 Iridium Power Spark Plug

The DENSO IXUH22I (5356) is an Iridium Power spark plug designed for petrol engines that require a fine-wire iridium center electrode. It uses a 0.4 mm iridium electrode, which helps produce a concentrated spark while requiring less voltage from the ignition system.

DENSO’s fine-wire iridium technology is designed to provide dependable ignition and consistent spark performance, helping the engine maintain smooth and efficient combustion.

The IXUH22I has a 12 mm thread diameter, 26.5 mm thread reach and 16 mm hex size. It is used in a wide variety of petrol vehicles from manufacturers such as Toyota, Honda, Hyundai, Kia, Peugeot, Citroën, Mitsubishi, Subaru, Daihatsu, Smart and Mercedes-Benz, among others.

DENSO IXUH22I 5356 Specifications

Specification	Details
Brand	DENSO
Part Number	IXUH22I
DENSO Stock Number	5356
Product Series	Iridium Power
Spark Plug Type	Iridium
Center Electrode	0.4 mm Iridium
Thread Diameter	12 mm
Thread Reach	26.5 mm
Hex Size	16 mm
Recommended Gap	0.9 mm
Heat Range	22
Seat Type	Gasket / Flat Seat
Ground Electrode	Standard, Tapercut / U-Groove
Resistance	5 kΩ
Terminal	Fixed SAE type
Quantity per Engine	Depends on vehicle
DENSO OE Reference	267700-7371 / 267700-7370 references may appear depending on catalog
Category	Automotive Spark Plug

DENSO specification data lists the IXUH22I with a 12 mm diameter, 26.5 mm reach, 16 mm hex, 0.9 mm gap and 0.4 mm iridium center electrode.

Key Features of DENSO IXUH22I

0.4 mm Fine Iridium Center Electrode

One of the main features of the IXUH22I is its 0.4 mm fine-wire iridium center electrode. Its small diameter allows the spark to be concentrated at the firing point and is one of the reasons fine-wire iridium plugs can operate with a lower required ignition voltage.

Improved Ignitability

The fine center electrode requires less voltage to produce a spark than a conventional larger electrode. This can help maintain reliable ignition, particularly during engine starting and other conditions where a consistent spark is important.

Iridium Construction

The center electrode is made from iridium, a material known for its resistance to high temperatures and electrode wear. This allows DENSO to use a very small electrode while maintaining the durability needed for normal engine operation.

Tapercut / U-Groove Ground Electrode

The IXUH22I uses a tapercut/U-groove ground electrode design. This design works together with the fine center electrode to support reliable spark formation and consistent ignition.

Stable Spark Performance

The combination of the 0.4 mm iridium center electrode and the ground-electrode design is intended to provide a focused and consistent spark throughout the plug’s service life.

16 mm Hex Design

The IXUH22I features a 16 mm hex, which is useful in applications where a relatively narrow spark-plug socket is required.

Benefits of DENSO IXUH22I 5356

When the IXUH22I is the correct specification for the engine, replacing worn spark plugs can help maintain:

• Reliable engine starting
• Smooth engine operation
• Consistent ignition
• Efficient combustion
• Good throttle response
• Stable engine performance
• Reduced possibility of ignition-related misfires caused by worn plugs
• Long-lasting electrode performance
• Consistent spark under demanding operating conditions

As with any spark plug, the IXUH22I should be selected according to the exact engine and manufacturer’s specification rather than simply by vehicle model.

DENSO IXUH22I Applications

The DENSO IXUH22I is used across a broad range of petrol vehicles. Its applications include smaller European and Japanese engines as well as larger Korean, Japanese and American V6/V8 applications.

DENSO catalog information associates the IXUH series with manufacturers including BMW, Mercedes-Benz, Honda, Mitsubishi, Mazda, Subaru, Suzuki and Daihatsu, while application and cross-reference data also lists Peugeot, Citroën, Toyota, Hyundai, Kia, Acura, Opel, Chrysler and Smart.

Below are some of the documented applications.

Peugeot

DENSO IXUH22I applications include several Peugeot petrol models, such as:

• Peugeot 108 1.2
• Peugeot 2008 1.2 VTi
• Peugeot 208 1.0
• Peugeot 208 1.2
• Peugeot 301 1.2 VTi 72
• Peugeot 308 1.2 THP / PureTech

The plug is associated with a number of 1.0L and 1.2L Peugeot petrol engines.

Citroën

Applications include:

• Citroën C1 II 1.2 VTi 82
• Citroën C3 II 1.0 VTi 68
• Citroën C3 II 1.2 VTi 82
• Citroën C3 III 1.2
• Citroën C3 1.2 PureTech
• Citroën C-Elysée 1.2 VTi 72
• Citroën DS3 1.2 VTi 82
• Citroën DS3 Cabriolet 1.2 VTi 82

These applications include petrol engines from the EB0, EB2 and EB2F families.

Toyota

Documented Toyota applications include:

• Toyota Aygo 1.2
• Other Toyota applications using the corresponding SU001-01126 spark-plug reference

Toyota’s SU001-01126 is listed as an OE reference associated with the DENSO IXUH22I.

Hyundai

Applications reported for the IXUH22I include:

• Hyundai Accent 1.4
• Hyundai Accent 1.6
• Hyundai Accent Sedan 1.4
• Hyundai Accent Sedan 1.6
• Hyundai Elantra 1.6 CVVT
• Hyundai Tucson 2.0
• Hyundai Santa Fe Sport 2.0
• Hyundai Santa Fe XL 3.3

The exact spark-plug specification can vary depending on the engine code and model year, so these details should be confirmed before ordering.

Kia

Documented applications include:

• Kia Forte 1.8
• Kia Forte 2.0
• Kia Forte5 2.0
• Kia Rondo 2.0
• Kia Cadenza 3.3 V6
• Kia K900 3.8 V6
• Kia K900 5.0 V8
• Kia Sedona 3.3 V6

These applications show that the IXUH22I is used in both smaller four-cylinder engines and selected larger V6 and V8 petrol engines.

Honda

The IXUH22I 5356 is also listed for several Honda petrol engines, including:

• Honda Pilot 3.5 V6
• Honda Ridgeline 3.5 V6
• Honda Passport 3.5 V6

DENSO catalog information lists the plug for several Honda 3.5L V6 applications, including engines from the J35 family.

Acura

Documented applications include:

• Acura MDX 3.5 V6
• Acura RLX 3.5 V6

These applications use Honda/Acura J35-series engines in the relevant configurations.

Mitsubishi

The IXUH22I is also listed for:

• Mitsubishi Eclipse Cross 1.5
• Eclipse Cross GK1W / 4B40 applications

Subaru

The spark plug is associated with the following Subaru OE reference:

• Subaru SAB330DE8760

This reference is cross-listed with the DENSO IXUH22I.

Daihatsu

The IXUH22I is also associated with Daihatsu references including:

• Daihatsu 90048-51189
• Daihatsu NDIXUH22IA

The exact vehicle and engine application should be checked before installation.

Mazda

Documented applications include:

• Mazda Carol 660 Hybrid — R06D
• Mazda Flair 660 Hybrid — R06A / R06D
• Mazda Flair Wagon 660 Hybrid — R06A

These applications make the IXUH22I relevant to certain Japanese kei cars equipped with Suzuki-derived 660cc engines.

Opel

Documented applications include:

• Opel Corsa F 1.2
• Opel Crossland X 1.2

These vehicles use variants of the EB2 and related 1.2L petrol engine family in the relevant applications.

Chrysler

The IXUH22I is also listed for selected Chrysler models, including:

• Chrysler 200 3.6 V6
• Chrysler Pacifica 3.6 V6
• Chrysler Town & Country 3.6 V6

The relevant applications include Chrysler’s 3.6L Pentastar V6 family.

Mercedes-Benz

The IXUH22I also appears in application data for selected Mercedes-Benz petrol models, including:

• Mercedes-Benz E 350
• Mercedes-Benz E 500
• Mercedes-Benz SLK 300

The exact plug specification depends on the particular engine and vehicle configuration.

Why Choose DENSO IXUH22I?

The IXUH22I combines DENSO’s fine-wire iridium technology with a long-reach M12 design. Its main specifications include a 0.4 mm iridium center electrode, 0.9 mm recommended gap, 26.5 mm thread reach and 16 mm hex.

For vehicles that specifically call for the IXUH22I, it provides a high-quality iridium replacement designed around the ignition requirements of the applicable engine.