Denso 3445 Spark Plug
OE Quality 60-Day Returns
Denso
 U-Groove Conventional

Denso 3445 Spark Plug

Brand Denso 3445
Center Electrode Core Material Copper
Center Electrode Tip Material Nickel
Ground Configuration Standard
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Standard
Hex Size 16.0
Manufacturer Heat Range 22
Pre-Gap Size 0.9
Reach 26.50
Resistance 5000
Seat Type Flat
Thread Diameter 12.00
Product line U-Groove Conventional
Fits Acura, Chrysler, Honda, Hyundai, Kia, Dodge, Jeep, Mitsubishi, Ram, Volkswagen, Mercedes-Benz, and Smart · 136 vehicles

U-Groove design. Improves ignitability for more efficient engine performance.

Copper core. Helps promote consistent spark delivery and dependable combustion.

Nickel tip. Provides a durable electrode surface for steady operation.

Cross-references DENSO Auto Parts XU22HDR9, Mitsubishi 132 159 00 03 and Mitsubishi 132 159 01 03 for the same application. See all 4.

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Denso 3445 U-Groove Spark Plug Overview

Denso 3445 is a U-Groove conventional spark plug built for direct-fit applications across a wide range of import and domestic vehicles. Its U-groove design is engineered to improve ignitability, helping support smoother combustion and consistent engine efficiency in the vehicles listed below.

This spark plug is a fitment match for many 2010-2017 Acura, Honda, Hyundai, Kia, Chrysler, Dodge, Jeep, Ram, Mitsubishi, Volkswagen, Mercedes-Benz, and Smart applications, including popular models such as the Honda Accord, Hyundai Tucson, and Kia Sorento.

Key Features

  • U-Groove conventional design for improved spark exposure and ignitability
  • 5000 ohm resistor for ignition system noise suppression
  • Nickel center electrode tip with copper core for stable heat transfer
  • Nickel ground electrode with standard configuration
  • Pre-gapped at 0.9 mm for listed applications
  • Flat seat, 12.00 mm thread diameter, 26.50 mm reach, and 16.0 mm hex size
  • Manufacturer heat range 22

Product Details

Denso U-Groove Conventional spark plugs are built around a design that exposes the spark more effectively at the firing point, which can help promote reliable ignition under everyday driving conditions. The Denso 3445 part number is used in a broad range of fitments, including 2015-2017 Honda Pilot, 2015-2017 Acura RDX, 2015-2017 Hyundai Tucson, and 2015-2016 Jeep Grand Cherokee applications. This part cross-references DENSO Auto Parts XU22HDR9 for the same application.

For buyers searching for a Denso 3445 spark plug, this OE-style conventional plug is a direct replacement option for many vehicles that specify the listed thread, reach, seat, and gap dimensions. It is also listed for select Mitsubishi applications, including the Mitsubishi Outlander, and for vehicles such as the Chrysler Pacifica and Volkswagen Passat.

What This Spark Plug Helps Address

  • Hard starting caused by worn or fouled spark plugs
  • Rough idle from inconsistent spark delivery
  • Misfire conditions related to aged ignition components
  • Reduced fuel efficiency from incomplete combustion
  • Loss of throttle response in high-mileage ignition systems

Installation Notes and Tips

Verify thread diameter, reach, seat type, and pre-gap before installation. The Denso 3445 uses a flat seat and 12.00 mm thread diameter, so it should be matched only to the engine specifications listed in the fitment data. Check the vehicle application carefully for the exact year and model, especially on vehicles such as the Honda Civic, Acura TLX, and Hyundai Elantra where engine-specific requirements can vary.

Before installing, inspect ignition coils, boots, and plug wells for wear or contamination. Apply the manufacturer-recommended torque procedure for the engine, and confirm the gap remains at 0.9 mm if adjustment is needed during service.

Quality Assurance

Denso is a recognized OE supplier in ignition components, and the U-Groove Conventional line is built to meet the dimensional and performance requirements of listed applications. The Denso 3445 is specified for direct replacement use in the vehicles shown in the fitment data, including many 2015-2017 Honda, Hyundai, and Kia models.

  • Fits 2015-2017 Acura RDX, N/A, U-Groove Conventional
  • Fits 2015-2017 Acura TLX, N/A, U-Groove Conventional
  • Fits 2017 Chrysler Pacifica, N/A, U-Groove Conventional
  • Fits 2016-2017 Honda HR-V, N/A, U-Groove Conventional
  • Fits 2015-2017 Honda Pilot, N/A, U-Groove Conventional
  • Fits 2017 Honda Ridgeline, N/A, U-Groove Conventional
  • Fits 2015-2017 Hyundai Elantra, N/A, U-Groove Conventional
  • Fits 2015-2017 Hyundai Santa Fe, N/A, U-Groove Conventional
  • Fits 2015-2017 Hyundai Santa Fe Sport, N/A, U-Groove Conventional
  • Fits 2015-2017 Hyundai Tucson, N/A, U-Groove Conventional
  • Fits 2015-2017 Kia Sorento, N/A, U-Groove Conventional
  • Fits 2015-2017 Kia Sportage, N/A, U-Groove Conventional
  • Fits 2015-2016 Acura MDX, N/A, U-Groove Conventional
  • Fits 2015-2016 Acura RLX, N/A, U-Groove Conventional
  • Fits 2015-2016 Chrysler 200, N/A, U-Groove Conventional
  • Fits 2015-2016 Chrysler 300, N/A, U-Groove Conventional
  • Fits 2015-2016 Chrysler Town & Country, N/A, U-Groove Conventional
  • Fits 2015-2016 Dodge Challenger, N/A, U-Groove Conventional
  • Fits 2015-2016 Dodge Charger, N/A, U-Groove Conventional
  • Fits 2015-2016 Dodge Durango, N/A, U-Groove Conventional
  • Fits 2015-2016 Dodge Grand Caravan, N/A, U-Groove Conventional
  • Fits 2015-2016 Dodge Journey, N/A, U-Groove Conventional
  • Fits 2015-2016 Honda Accord, N/A, U-Groove Conventional
  • Fits 2015-2016 Honda Odyssey, N/A, U-Groove Conventional
  • Fits 2015-2016 Hyundai Azera, N/A, U-Groove Conventional
  • Fits 2015-2016 Hyundai Elantra GT, N/A, U-Groove Conventional
  • Fits 2015-2016 Hyundai Equus, N/A, U-Groove Conventional
  • Fits 2015-2016 Hyundai Genesis, N/A, U-Groove Conventional
  • Fits 2015-2016 Hyundai Genesis Coupe, N/A, U-Groove Conventional
  • Fits 2015-2016 Jeep Cherokee, N/A, U-Groove Conventional
  • Fits 2015-2016 Jeep Grand Cherokee, N/A, U-Groove Conventional
  • Fits 2015-2016 Jeep Wrangler, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Cadenza, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Forte, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Forte Koup, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Forte5, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia K900, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Optima, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Sedona, N/A, U-Groove Conventional
  • Fits 2015-2016 Kia Soul, N/A, U-Groove Conventional
  • Fits 2010-2011 Kia Soul, N/A, U-Groove Conventional
  • Fits 2015-2016 Mitsubishi Outlander, N/A, U-Groove Conventional
  • Fits 2015-2016 Ram 1500, N/A, U-Groove Conventional
  • Fits 2015-2016 Ram ProMaster 1500, N/A, U-Groove Conventional
  • Fits 2015-2016 Ram ProMaster 2500, N/A, U-Groove Conventional
  • Fits 2015-2016 Ram ProMaster 3500, N/A, U-Groove Conventional
  • Fits 2015-2016 Volkswagen CC, N/A, U-Groove Conventional
  • Fits 2016 Volkswagen Passat, N/A, U-Groove Conventional
  • Fits 2015-2016 Volkswagen Touareg, N/A, U-Groove Conventional
  • Fits 2015 Acura ILX, N/A, U-Groove Conventional
  • Fits 2015 Honda Civic, N/A, U-Groove Conventional
  • Fits 2015 Honda Crosstour, N/A, U-Groove Conventional
  • Fits 2015 Hyundai Sonata, N/A, U-Groove Conventional
  • Fits 2015 Mercedes-Benz C250, N/A, U-Groove Conventional
  • Fits 2015 Mercedes-Benz G550, N/A, U-Groove Conventional
  • Fits 2015 Mercedes-Benz SLK250, N/A, U-Groove Conventional
  • Fits 2015 Ram C/V, N/A, U-Groove Conventional
  • Fits 2008-2015 Smart Fortwo, N/A, U-Groove Conventional

Related reading

This part fits 136 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelFuel TypePositionNotes
2017AcuraRDX——N/AU-Groove Conventional
2017AcuraTLX——N/AU-Groove Conventional
2017ChryslerPacifica——N/AU-Groove Conventional
2017HondaHR-VLX—N/AU-Groove Conventional
2017HondaHR-VEX-L—N/AU-Groove Conventional
2017HondaHR-VEX—N/AU-Groove Conventional
2017HondaPilot——N/AU-Groove Conventional
2017HondaRidgelineSport—N/AU-Groove Conventional
2017HondaRidgelineRTS—N/AU-Groove Conventional
2017HondaRidgelineRTL-T—N/AU-Groove Conventional
2017HondaRidgelineRTL-E—N/AU-Groove Conventional
2017HondaRidgelineRTL—N/AU-Groove Conventional
2017HondaRidgelineRT—N/AU-Groove Conventional
2017HyundaiElantra——N/AU-Groove Conventional
2017HyundaiSanta Fe——N/AU-Groove Conventional
2017HyundaiSanta Fe Sport——N/AU-Groove Conventional
2017HyundaiTucson——N/AU-Groove Conventional
2017KiaSorento——N/AU-Groove Conventional
2017KiaSportage——N/AU-Groove Conventional
2016AcuraMDX——N/AU-Groove Conventional
2016AcuraRDX——N/AU-Groove Conventional
2016AcuraRLX——N/AU-Groove Conventional
2016AcuraTLX——N/AU-Groove Conventional
2016Chrysler200——N/AU-Groove Conventional
2016Chrysler300——N/AU-Groove Conventional
2016ChryslerTown & Country——N/AU-Groove Conventional
2016DodgeChallenger——N/AU-Groove Conventional
2016DodgeCharger——N/AU-Groove Conventional
2016DodgeDurango——N/AU-Groove Conventional
2016DodgeGrand Caravan——N/AU-Groove Conventional
2016DodgeJourney——N/AU-Groove Conventional
2016HondaAccord——N/AU-Groove Conventional
2016HondaHR-VLX—N/AU-Groove Conventional
2016HondaHR-VEX-L—N/AU-Groove Conventional
2016HondaHR-VEX—N/AU-Groove Conventional
2016HondaOdyssey——N/AU-Groove Conventional
2016HondaPilot——N/AU-Groove Conventional
2016HyundaiAzera——N/AU-Groove Conventional
2016HyundaiElantra——N/AU-Groove Conventional
2016HyundaiElantra GT——N/AU-Groove Conventional
2016HyundaiEquus——N/AU-Groove Conventional
2016HyundaiGenesis——N/AU-Groove Conventional
2016HyundaiGenesis Coupe——N/AU-Groove Conventional
2016HyundaiSanta Fe——N/AU-Groove Conventional
2016HyundaiSanta Fe Sport——N/AU-Groove Conventional
2016HyundaiTucson——N/AU-Groove Conventional
2016JeepCherokee——N/AU-Groove Conventional
2016JeepGrand Cherokee——N/AU-Groove Conventional
2016JeepWrangler——N/AU-Groove Conventional
2016KiaCadenza——N/AU-Groove Conventional
2016KiaForte——N/AU-Groove Conventional
2016KiaForte Koup——N/AU-Groove Conventional
2016KiaForte5——N/AU-Groove Conventional
2016KiaK900——N/AU-Groove Conventional
2016KiaOptima—ELECTRIC/GASN/AU-Groove Conventional
2016KiaOptima——N/AU-Groove Conventional
2016KiaSedona——N/AU-Groove Conventional
2016KiaSorento——N/AU-Groove Conventional
2016KiaSoul——N/AU-Groove Conventional
2016KiaSportage——N/AU-Groove Conventional
2016MitsubishiOutlander——N/AU-Groove Conventional
2016Ram1500——N/AU-Groove Conventional
2016RamProMaster 1500——N/AU-Groove Conventional
2016RamProMaster 2500——N/AU-Groove Conventional
2016RamProMaster 3500——N/AU-Groove Conventional
2016VolkswagenCC——N/AU-Groove Conventional
2016VolkswagenPassat——N/AU-Groove Conventional
2016VolkswagenTouareg——N/AU-Groove Conventional
2015AcuraILX——N/AU-Groove Conventional
2015AcuraMDX——N/AU-Groove Conventional
2015AcuraRDX——N/AU-Groove Conventional
2015AcuraRLX—GASN/AU-Groove Conventional
2015AcuraTLX——N/AU-Groove Conventional
2015Chrysler200——N/AU-Groove Conventional
2015Chrysler300——N/AU-Groove Conventional
2015ChryslerTown & Country——N/AU-Groove Conventional
2015DodgeChallenger——N/AU-Groove Conventional
2015DodgeCharger——N/AU-Groove Conventional
2015DodgeDurango——N/AU-Groove Conventional
2015DodgeGrand Caravan——N/AU-Groove Conventional
2015DodgeJourney——N/AU-Groove Conventional
2015HondaAccord——N/AU-Groove Conventional
2015HondaCivic——N/AU-Groove Conventional
2015HondaCivicSE—N/AU-Groove Conventional
2015HondaCivicLX—N/AU-Groove Conventional
2015HondaCivicHF—N/AU-Groove Conventional
2015HondaCivicEX-L—N/AU-Groove Conventional
2015HondaCivicEX—N/AU-Groove Conventional
2015HondaCrosstour——N/AU-Groove Conventional
2015HondaOdyssey——N/AU-Groove Conventional
2015HondaPilot——N/AU-Groove Conventional
2015HyundaiAzera——N/AU-Groove Conventional
2015HyundaiElantra——N/AU-Groove Conventional
2015HyundaiElantra GT——N/AU-Groove Conventional
2015HyundaiEquus——N/AU-Groove Conventional
2015HyundaiGenesis——N/AU-Groove Conventional
2015HyundaiGenesis Coupe——N/AU-Groove Conventional
2015HyundaiSanta Fe——N/AU-Groove Conventional
2015HyundaiSanta Fe Sport——N/AU-Groove Conventional
2015HyundaiSonata—ELECTRIC/GASN/AU-Groove Conventional
2015HyundaiTucson——N/AU-Groove Conventional
2015JeepCherokee——N/AU-Groove Conventional
2015JeepGrand Cherokee——N/AU-Groove Conventional
2015JeepWrangler——N/AU-Groove Conventional
2015KiaCadenza——N/AU-Groove Conventional
2015KiaForte——N/AU-Groove Conventional
2015KiaForte Koup——N/AU-Groove Conventional
2015KiaForte5——N/AU-Groove Conventional
2015KiaK900——N/AU-Groove Conventional
2015KiaOptima—ELECTRIC/GASN/AU-Groove Conventional
2015KiaOptima——N/AU-Groove Conventional
2015KiaSedona——N/AU-Groove Conventional
2015KiaSorento——N/AU-Groove Conventional
2015KiaSoul——N/AU-Groove Conventional
2015KiaSportage——N/AU-Groove Conventional
2015Mercedes-BenzC250——N/AU-Groove Conventional
2015Mercedes-BenzG550——N/AU-Groove Conventional
2015Mercedes-BenzSLK250——N/AU-Groove Conventional
2015MitsubishiOutlander——N/AU-Groove Conventional
2015Ram1500——N/AU-Groove Conventional
2015RamC/V——N/AU-Groove Conventional
2015RamProMaster 1500——N/AU-Groove Conventional
2015RamProMaster 2500——N/AU-Groove Conventional
2015RamProMaster 3500——N/AU-Groove Conventional
2015SmartFortwo——N/AU-Groove Conventional
2015VolkswagenCC——N/AU-Groove Conventional
2015VolkswagenTouareg——N/AU-Groove Conventional
2014SmartFortwo——N/AU-Groove Conventional
2013SmartFortwo——N/AU-Groove Conventional
2012SmartFortwo——N/AU-Groove Conventional
2011KiaSoul——N/AU-Groove Conventional
2011SmartFortwo——N/AU-Groove Conventional
2010KiaSoul——N/AU-Groove Conventional
2010SmartFortwo——N/AU-Groove Conventional
2009SmartFortwo——N/AU-Groove Conventional
2008SmartFortwo——N/AU-Groove Conventional
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DENSO Auto Parts — XU22HDR9Mitsubishi — 132 159 00 03Mitsubishi — 132 159 01 03Mitsubishi — 132 159 02 03