Denso 5302 Spark Plug
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Denso
 Iridium Power

Denso 5302 Spark Plug

Brand Denso 5302
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium
Ground Configuration Standard
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Tapercut, U-Groove
Hex Size 16.0
Manufacturer Heat Range 20
Pre-Gap Size 1.1
Reach 19.00
Resistance 5000
Seat Type Flat
Thread Diameter 14.00
Product line Iridium Power
Fits Jaguar, Volvo, Mercedes-Benz, Plymouth, Dodge, Saab, Chrysler, Eagle, Porsche, Lexus, Toyota, Volkswagen, Audi, Honda, Lotus, Sterling, Acura, Jeep, Mazda, and Nissan · 194 vehicles

Iridium Power line. Features Denso's smallest iridium center electrode for increased performance.

Tapercut, U-Groove design. Promotes a stronger spark for efficient ignition.

Iridium tip. Copper core and nickel ground electrode construction balance durability and conductivity.

Cross-references Datsun/Nissan 22401-01P16, Datsun/Nissan 22401-02P16 and DENSO Auto Parts IQ20 for the same application. See all 32.

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Denso Iridium Power Spark Plug 5302

Denso Iridium Power spark plug 5302 is built for drivers who want precise ignition performance and stable combustion in a wide range of import and performance applications. Its 0.4 mm iridium center electrode is paired with a tapered-cut, U-groove ground electrode design to support efficient spark delivery and consistent throttle response.

The Iridium Power line focuses on compact electrode design and durable materials for dependable ignition performance in vehicles such as the Jaguar XJ8, Volvo S60, and Mercedes-Benz S500. If you are searching for a Denso 5302 spark plug for older Honda, Toyota, Nissan, or Mazda applications, this part number is a direct reference point for fitment research.

Key Features

  • Iridium center electrode tip with a 0.4 mm design for focused spark delivery
  • Tapered-cut, U-groove ground electrode design for improved flame kernel exposure
  • Copper core center electrode and nickel ground electrode construction
  • 5000 ohm resistor for ignition noise suppression
  • 14 mm thread diameter, 19.00 mm reach, and flat seat design
  • Pre-gapped at 1.1 mm for specified applications
  • Heat range 20 for application-specific thermal control

Product Details

Denso Iridium Power 5302 is a secondary ignition spark plug engineered around a fine-wire iridium center electrode and a single ground electrode configuration. The compact electrode profile helps concentrate the spark, while the tapercut and U-groove ground design supports efficient ignition across a broad range of gasoline engines. This plug is commonly cross-referenced in OE-style applications, including Denso IQ20, and is used in fitment research for vehicles such as the Jaguar XJR, Volvo V70, and Mercedes-Benz SL500.

This part cross-references DENSO Auto Parts IQ20 for the same application.

Common Issues This Part Can Address

  • Misfire caused by worn or eroded spark plug electrodes
  • Hard starting related to weak ignition output
  • Rough idle from inconsistent spark delivery
  • Reduced combustion efficiency from aged plugs
  • Ignition noise concerns in resistor-equipped systems

Installation Notes and Tips

  • Verify thread diameter, reach, seat type, and heat range before installation.
  • Check the specified gap for your engine application before use.
  • Confirm vehicle-specific fitment for models such as the Honda Civic, Toyota Camry, and Nissan Maxima.
  • Some applications in the fitment data note special cylinder requirements; review engine notes before ordering.
  • Use proper torque procedures to avoid thread or seat damage.

Quality Assurance

Denso manufactures the Iridium Power line with fine-electrode construction and application-specific specifications for reliable ignition service. Part number 5302 is built to match listed OE-style dimensions and fitment references across supported vehicles.

Related reading

This part fits 194 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2003JaguarVanden Plas—N/AIridium Power
2003JaguarXJ8—N/AIridium Power
2003JaguarXJR—N/AIridium Power
2003VolvoC70—N/AIridium Power
2003VolvoS60—N/AIridium Power
2003VolvoV70—N/AIridium Power
2002JaguarS-Type—N/AIridium Power
2002JaguarVanden Plas—N/AIridium Power
2002JaguarXJ8—N/AIridium Power
2002JaguarXJR—N/AIridium Power
2002JaguarXK8—N/AIridium Power
2002JaguarXKR—N/AIridium Power
2002VolvoC70—N/AIridium Power
2002VolvoS60—N/AIridium Power
2002VolvoS80—N/AIridium Power
2002VolvoV70—N/AIridium Power
2001JaguarS-Type—N/AIridium Power
2001JaguarVanden Plas—N/AIridium Power
2001JaguarXJ8—N/AIridium Power
2001JaguarXJR—N/AIridium Power
2001JaguarXK8—N/AIridium Power
2001JaguarXKR—N/AIridium Power
2001VolvoC70—N/AIridium Power
2001VolvoS60—N/AIridium Power
2001VolvoS80—N/AIridium Power
2001VolvoV70—N/AIridium Power
2000JaguarS-Type—N/AIridium Power
2000JaguarVanden Plas—N/AIridium Power
2000JaguarXJ8—N/AIridium Power
2000JaguarXJR—N/AIridium Power
2000JaguarXK8—N/AIridium Power
2000JaguarXKR—N/AIridium Power
2000VolvoC70—N/AIridium Power
2000VolvoS70—N/AIridium Power
2000VolvoS80—N/AIridium Power
2000VolvoV70—N/AIridium Power
1999JaguarVanden Plas—N/AIridium Power
1999JaguarXJ8—N/AIridium Power
1999JaguarXJR—N/AIridium Power
1999Mercedes-BenzS420—N/AIridium Power
1999Mercedes-BenzS500—N/AIridium Power
1999Mercedes-BenzS600—N/AIridium Power
1999PlymouthProwler—N/AIridium Power
1999VolvoC70—N/AIridium Power
1999VolvoS70—N/AIridium Power
1999VolvoS80—N/AIridium Power
1999VolvoV70—N/AIridium Power
1998DodgeStratus—N/AIridium Power
1998JaguarVanden Plas—N/AIridium Power
1998JaguarXJ8—N/AIridium Power
1998JaguarXJR—N/AIridium Power
1998JaguarXK8—N/AIridium Power
1998Mercedes-BenzC230—N/AIridium Power
1998Mercedes-BenzCL500—N/AIridium Power
1998Mercedes-BenzE320BaseN/ATwo spark plugs are required per cylinder.; Iridium Power
1998Mercedes-BenzML320—N/ATwo spark plugs are required per cylinder.; Iridium Power
1998Mercedes-BenzS320—N/AIridium Power
1998Mercedes-BenzS420—N/AIridium Power
1998Mercedes-BenzS500—N/AIridium Power
1998Mercedes-BenzS600—N/AIridium Power
1998Mercedes-BenzSL500—N/AIridium Power
1998Mercedes-BenzSL600—N/AIridium Power
1998Mercedes-BenzSLK230—N/AIridium Power
1998VolvoC70—N/AIridium Power
1998VolvoS90—N/AIridium Power
1998VolvoV70—N/AIridium Power
1998VolvoV90—N/AIridium Power
1997DodgeStratus—N/AIridium Power
1997JaguarXK8—N/AIridium Power
1997Mercedes-BenzC230—N/AIridium Power
1997Mercedes-BenzE320—N/AIridium Power
1997Mercedes-BenzS320—N/AIridium Power
1997Mercedes-BenzS600—N/AIridium Power
1997Mercedes-BenzSL600—N/AIridium Power
1997Volvo960—N/AIridium Power
1996DodgeStratus—N/AIridium Power
1996Mercedes-BenzS420—N/AIridium Power
1996Mercedes-BenzS500—N/AIridium Power
1996Mercedes-BenzS600—N/AIridium Power
1996Mercedes-BenzSL500—N/AIridium Power
1996Mercedes-BenzSL600—N/AIridium Power
1996Saab900—N/AIridium Power
1996Volvo960—N/AIridium Power
1995ChryslerSebring—N/AIridium Power
1995DodgeStratus—N/AIridium Power
1995Saab900—N/AIridium Power
1995Volvo960—N/AIridium Power
1994Porsche911—N/AIridium Power
1994Porsche911—N/ATwo spark plugs are required per cylinder.; Iridium Power
1994Saab900—N/AIridium Power
1994Saab9000—N/AIridium Power
1994Volvo850—N/AIridium Power
1994Volvo960—N/AIridium Power
1993LexusES300—N/AIridium Power
1993Saab9000—N/AIridium Power
1993ToyotaCamry—N/AIridium Power
1993Volvo960—N/AIridium Power
1992LexusES300—N/AIridium Power
1992Saab9000—N/AIridium Power
1992ToyotaCamry—N/AIridium Power
1992ToyotaSupra—N/AIridium Power
1992VolkswagenGolf—N/AIridium Power
1992Volvo960—N/AIridium Power
1991Audi90 Quattro—N/AIridium Power
1991HondaCivic—N/AIridium Power
1991HondaCRX—N/AIridium Power
1991LexusES250—N/AIridium Power
1991Saab9000—N/AIridium Power
1991ToyotaCamry—N/AIridium Power
1991ToyotaSupra—N/AIridium Power
1991VolkswagenGolf—N/AIridium Power
1991VolkswagenJetta—N/AIridium Power
1991VolkswagenPassat—N/AIridium Power
1990AcuraLegend—N/AIridium Power
1990Audi90 Quattro—N/AIridium Power
1990HondaCivic—N/AIridium Power
1990HondaCRX—N/AIridium Power
1990HondaCRXBaseN/AIridium Power
1990JeepCherokee—N/AIridium Power
1990JeepComanche—N/AIridium Power
1990JeepWagoneer—N/AIridium Power
1990LexusES250—N/AIridium Power
1990MazdaMPV—N/AIridium Power
1990Saab900—N/AIridium Power
1990Saab9000—N/AIridium Power
1990ToyotaCamry—N/AIridium Power
1990ToyotaSupra—N/AIridium Power
1990VolkswagenGolf—N/AIridium Power
1990VolkswagenJetta—N/AIridium Power
1990VolkswagenPassat—N/AIridium Power
1989AcuraIntegra—N/AIridium Power
1989AcuraLegend—N/AIridium Power
1989HondaCivic—N/AIridium Power
1989HondaCRX—N/AIridium Power
1989JaguarVanden Plas—N/AIridium Power
1989JaguarXJ6—N/AIridium Power
1989JeepCherokee—N/AIridium Power
1989JeepComanche—N/AIridium Power
1989JeepWagoneer—N/AIridium Power
1989Mazda323—N/AIridium Power
1989Mazda626—N/AIridium Power
1989Mazda929—N/AIridium Power
1989MazdaB2600—N/AIridium Power
1989MazdaMPV—N/AIridium Power
1989MazdaMX-6—N/AIridium Power
1989Nissan300ZX—N/AIridium Power
1989NissanPulsar NX—N/AIridium Power
1989Saab900—N/AIridium Power
1989ToyotaCamry—N/AIridium Power
1989ToyotaMR2—N/AIridium Power
1989ToyotaSupra—N/AIridium Power
1988AcuraIntegra—N/AIridium Power
1988AcuraLegend—N/AIridium Power
1988HondaCivic—N/AIridium Power
1988HondaCRX—N/AIridium Power
1988HondaPrelude2.0 SiN/AIridium Power
1988JaguarVanden Plas—N/AIridium Power
1988JaguarXJ6—N/AIridium Power
1988JeepCherokee—N/AIridium Power
1988JeepComanche—N/AIridium Power
1988JeepWagoneer—N/AIridium Power
1988Mazda323—N/AIridium Power
1988Mazda626—N/AIridium Power
1988Mazda929—N/AIridium Power
1988MazdaMX-6—N/AIridium Power
1988Nissan200SX—N/AIridium Power
1988Nissan300ZX—N/AIridium Power
1988NissanMaxima—N/AIridium Power
1988NissanPulsar NX—N/AIridium Power
1988Saab900—N/AIridium Power
1988Saab9000—N/AIridium Power
1988ToyotaCamry—N/AIridium Power
1988ToyotaMR2—N/AIridium Power
1988ToyotaSupra—N/AIridium Power
1987AcuraIntegra—N/AIridium Power
1987AcuraLegend—N/AIridium Power
1987JaguarXJ6—N/AIridium Power
1987JeepCherokee—N/AIridium Power
1987JeepComanche—N/AIridium Power
1987JeepWagoneer—N/AIridium Power
1987Nissan200SX—N/AIridium Power
1987Nissan300ZX—N/AIridium Power
1987NissanMaxima—N/AIridium Power
1987NissanPulsar NXSEN/AIridium Power
1987Saab9000—N/AIridium Power
1987ToyotaSupra—N/AIridium Power
1986AcuraIntegra—N/AIridium Power
1986AcuraLegend—N/AIridium Power
1986Nissan300ZX—N/AIridium Power
1986NissanMaxima—N/AIridium Power
1986Saab9000—N/AIridium Power
1985Nissan300ZX—N/AIridium Power
1985NissanMaxima—N/AIridium Power
1984Nissan300ZX—N/AIridium Power
Directly replaces or cross-references 32 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Datsun/Nissan — 22401-01P16Datsun/Nissan — 22401-02P16DENSO Auto Parts — IQ20Honda — 98079-561-48Honda — 98079-561-58Honda — 98079-561-58SHonda — 18218200016Honda — 18218200018Jaguar — EBC2230Jaguar — EBC11480Mazda — 0000-18-F201Mazda — 0000-18-F220Mazda — F201-18-110Mazda — F202-18-110AMazda — F220-18-110Mazda — F221-18-110Mercedes-Benz — 003 159 73 03Mercedes-Benz — 003 159 76 03Saab — 30 52 0467Saab — 59 58 798Saab — 75 05 142Saab — 88 19 294Saab — 91 17 565Saab — 91 39 643Toyota — 90919-01127Toyota — 90919-01127-83Toyota — 90919-01145Volkswagen — ZVP 121 086 SVolvo — 271636-0Volvo — 271766-0Volvo — 8642661-0Volvo — 8670058-0