Denso 3139 Spark Plug
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Denso
 U-Groove Conventional

Denso 3139 Spark Plug

Brand Denso 3139
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 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 U-Groove Conventional
Fits Toyota, Lexus, Scion, Mercedes-Benz, Pontiac, Volvo, and Chrysler · 243 vehicles

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

Copper core. Helps promote consistent spark delivery.

Nickel tip. Provides durable electrode contact for reliable ignition.

Cross-references DENSO Auto Parts K20R-U11 and General Motors 96130723 for the same application. See all 2.

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Denso 3139 U-Groove Spark Plug

Denso 3139 is a conventional spark plug built for direct-fit ignition service across a wide range of Toyota, Lexus, Scion, Pontiac, Volvo, Mercedes-Benz, Chrysler, and related applications. Its U-Groove electrode design is engineered to improve ignitability, helping support smoother combustion and consistent engine efficiency.

Key Features

  • U-Groove ground electrode tip design for improved spark exposure
  • 5000 ohm resistor for stable ignition performance
  • Copper center electrode core with nickel tip materials
  • Nickel ground electrode with standard ground configuration
  • Pre-gapped at 1.1 mm for OE-style service
  • 14 mm thread diameter, 19.00 mm reach, and flat seat design
  • 16.0 mm hex size for common spark plug service tools
  • Manufacturer heat range 20

Product Details

The Denso U-Groove Conventional line focuses on dependable secondary ignition performance with a design that promotes a stronger spark path. Part number 3139 is a practical choice for drivers servicing Toyota Camry, Toyota Corolla, Toyota Highlander, Lexus RX330, Lexus LS430, and other listed applications where correct thread size, reach, and seat type matter for proper cylinder head fitment. This part cross-references DENSO Auto Parts K20R-U11 and General Motors 96130723 for the same application.

What It Helps Address

  • Hard starting caused by worn or fouled spark plugs
  • Rough idle from inconsistent ignition output
  • Misfire conditions related to degraded plug electrodes
  • Reduced fuel efficiency from incomplete combustion
  • Loss of throttle response in aging ignition service intervals

Installation Notes and Fitment

Compatible With 1990-2013 Toyota Camry, Toyota Corolla, Toyota Highlander, Toyota RAV4, Toyota Sienna, Toyota Tundra, Lexus ES330, Lexus GS430, Lexus LS430, Lexus RX330, Scion xB, Pontiac Vibe, Volvo S80, Volvo XC90, Mercedes-Benz SLK55 AMG, and other listed vehicles. Fits 2002-2011 Toyota Camry, N/A; Fits 2005-2006 Toyota Corolla, N/A; Fits 2001-2010 Toyota Highlander, N/A; Fits 2004-2006 Lexus RX330, N/A; Fits 2008-2011 Scion xB, N/A; Fits 2007-2008 Volvo S80, N/A; Fits 2010 Volvo XC90, N/A; Fits 2006 Mercedes-Benz Crossfire, N/A; Fits 2003-2006 Mercedes-Benz CLK55 AMG, N/A; Fits 2007-2010 Pontiac Vibe, N/A. Verify thread diameter, reach, seat type, and heat range before installation. The flat seat design and 14 mm thread size should match the cylinder head specification exactly, and the pre-gap should be checked against the engine’s service requirements before final torque.

Quality Assurance

Denso is known for OE-level ignition component engineering, and the U-Groove Conventional series is built to meet the dimensional and performance requirements expected in routine spark plug replacement service. Part number 3139 is specified for direct-fit applications where correct ignition geometry and resistor design are important.

Related reading

This part fits 243 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2013ToyotaMatrixN/AU-Groove Conventional
2012LexusHS250hN/AU-Groove Conventional
2012ToyotaMatrixN/AU-Groove Conventional
2011LexusHS250hN/AU-Groove Conventional
2011ScionxBN/AU-Groove Conventional
2011ToyotaCamryN/AU-Groove Conventional
2011ToyotaMatrixN/AU-Groove Conventional
2010LexusHS250hN/AU-Groove Conventional
2010LexusSC430N/AU-Groove Conventional
2010Mercedes-BenzSLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2010PontiacVibeN/AU-Groove Conventional
2010SciontCN/AU-Groove Conventional
2010ScionxBN/AU-Groove Conventional
2010ToyotaCamryN/AU-Groove Conventional
2010ToyotaCorollaN/AU-Groove Conventional
2010ToyotaHighlanderN/AU-Groove Conventional
2010ToyotaMatrixN/AU-Groove Conventional
2010VolvoS80N/AU-Groove Conventional
2010VolvoXC90N/AU-Groove Conventional
2009LexusGX470N/AU-Groove Conventional
2009LexusSC430N/AU-Groove Conventional
2009SciontCN/AU-Groove Conventional
2009ScionxBN/AU-Groove Conventional
2009Toyota4RunnerN/AU-Groove Conventional
2009ToyotaCamryN/AU-Groove Conventional
2009ToyotaCorollaN/AU-Groove Conventional
2009ToyotaHighlanderN/AU-Groove Conventional
2009ToyotaMatrixN/AU-Groove Conventional
2009ToyotaSequoiaN/AU-Groove Conventional
2009ToyotaTundraN/AU-Groove Conventional
2008LexusGX470N/AU-Groove Conventional
2008LexusRX400hN/AU-Groove Conventional
2008LexusSC430N/AU-Groove Conventional
2008SciontCN/AU-Groove Conventional
2008ScionxBN/AU-Groove Conventional
2008Toyota4RunnerN/AU-Groove Conventional
2008ToyotaCamryN/AU-Groove Conventional
2008ToyotaHighlanderN/AU-Groove Conventional
2008ToyotaRAV4N/AU-Groove Conventional
2008ToyotaSequoiaN/AU-Groove Conventional
2008ToyotaSolaraN/AU-Groove Conventional
2008ToyotaTundraN/AU-Groove Conventional
2008VolvoS60N/AU-Groove Conventional
2008VolvoS80N/AU-Groove Conventional
2008VolvoXC90N/AU-Groove Conventional
2007LexusGS430N/AU-Groove Conventional
2007LexusGX470N/AU-Groove Conventional
2007LexusLX470N/AU-Groove Conventional
2007LexusRX400hN/AU-Groove Conventional
2007LexusSC430N/AU-Groove Conventional
2007Mercedes-BenzSLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2007SciontCN/AU-Groove Conventional
2007Toyota4RunnerN/AU-Groove Conventional
2007ToyotaCamryN/AU-Groove Conventional
2007ToyotaHighlanderN/AU-Groove Conventional
2007ToyotaLand CruiserN/AU-Groove Conventional
2007ToyotaRAV4N/AU-Groove Conventional
2007ToyotaSequoiaN/AU-Groove Conventional
2007ToyotaSolaraN/AU-Groove Conventional
2007ToyotaTundraN/AU-Groove Conventional
2007VolvoS80N/AU-Groove Conventional
2007VolvoXC90N/AU-Groove Conventional
2006ChryslerCrossfireN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2006LexusES330N/AU-Groove Conventional
2006LexusGS430N/AU-Groove Conventional
2006LexusGX470N/AU-Groove Conventional
2006LexusLS430N/AU-Groove Conventional
2006LexusLX470N/AU-Groove Conventional
2006LexusRX330N/AU-Groove Conventional
2006LexusRX400hN/AU-Groove Conventional
2006LexusSC430N/AU-Groove Conventional
2006Mercedes-BenzCLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2006PontiacVibeN/AU-Groove Conventional
2006SciontCN/AU-Groove Conventional
2006Toyota4RunnerN/AU-Groove Conventional
2006ToyotaCamryN/AU-Groove Conventional
2006ToyotaCorollaN/AU-Groove Conventional
2006ToyotaHighlanderN/AU-Groove Conventional
2006ToyotaLand CruiserN/AU-Groove Conventional
2006ToyotaMatrixN/AU-Groove Conventional
2006ToyotaRAV4N/AU-Groove Conventional
2006ToyotaSequoiaN/AU-Groove Conventional
2006ToyotaSiennaN/AU-Groove Conventional
2006ToyotaSolaraN/AU-Groove Conventional
2006ToyotaTundraN/AU-Groove Conventional
2006VolvoXC90N/AU-Groove Conventional
2005LexusES330N/AU-Groove Conventional
2005LexusGS430N/AU-Groove Conventional
2005LexusGX470N/AU-Groove Conventional
2005LexusLS430N/AU-Groove Conventional
2005LexusLX470N/AU-Groove Conventional
2005LexusRX330N/AU-Groove Conventional
2005LexusSC430N/AU-Groove Conventional
2005Mercedes-BenzCLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2005PontiacVibeN/AU-Groove Conventional
2005SciontCN/AU-Groove Conventional
2005Toyota4RunnerN/AU-Groove Conventional
2005ToyotaCamryN/AU-Groove Conventional
2005ToyotaCelicaN/AU-Groove Conventional
2005ToyotaCorollaN/AU-Groove Conventional
2005ToyotaHighlanderN/AU-Groove Conventional
2005ToyotaLand CruiserN/AU-Groove Conventional
2005ToyotaMatrixN/AU-Groove Conventional
2005ToyotaRAV4N/AU-Groove Conventional
2005ToyotaSequoiaN/AU-Groove Conventional
2005ToyotaSiennaN/AU-Groove Conventional
2005ToyotaSolaraN/AU-Groove Conventional
2005ToyotaTundraN/AU-Groove Conventional
2005VolvoXC90N/AU-Groove Conventional
2004LexusES330N/AU-Groove Conventional
2004LexusGS430N/AU-Groove Conventional
2004LexusGX470N/AU-Groove Conventional
2004LexusLS430N/AU-Groove Conventional
2004LexusLX470N/AU-Groove Conventional
2004LexusRX330N/AU-Groove Conventional
2004LexusSC430N/AU-Groove Conventional
2004Mercedes-BenzC32 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2004Mercedes-BenzCLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2004Mercedes-BenzSLK230N/AU-Groove Conventional
2004PontiacVibeN/AU-Groove Conventional
2004Toyota4RunnerN/AU-Groove Conventional
2004ToyotaAvalonN/AU-Groove Conventional
2004ToyotaCamryN/AU-Groove Conventional
2004ToyotaCelicaN/AU-Groove Conventional
2004ToyotaHighlanderN/AU-Groove Conventional
2004ToyotaLand CruiserN/AU-Groove Conventional
2004ToyotaMatrixN/AU-Groove Conventional
2004ToyotaRAV4N/AU-Groove Conventional
2004ToyotaSiennaN/AU-Groove Conventional
2004ToyotaSolaraN/AU-Groove Conventional
2003LexusES300N/AU-Groove Conventional
2003LexusGS430N/AU-Groove Conventional
2003LexusGX470N/AU-Groove Conventional
2003LexusLS430N/AU-Groove Conventional
2003LexusLX470N/AU-Groove Conventional
2003LexusRX300N/AU-Groove Conventional
2003LexusSC430N/AU-Groove Conventional
2003Mercedes-BenzC32 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2003Mercedes-BenzCLK55 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2003Mercedes-BenzSLK230N/AU-Groove Conventional
2003PontiacVibeN/AU-Groove Conventional
2003Toyota4RunnerN/AU-Groove Conventional
2003ToyotaAvalonN/AU-Groove Conventional
2003ToyotaCamryN/AU-Groove Conventional
2003ToyotaCelicaN/AU-Groove Conventional
2003ToyotaHighlanderN/AU-Groove Conventional
2003ToyotaLand CruiserN/AU-Groove Conventional
2003ToyotaMatrixN/AU-Groove Conventional
2003ToyotaRAV4N/AU-Groove Conventional
2003ToyotaSiennaN/AU-Groove Conventional
2003ToyotaSolaraN/AU-Groove Conventional
2002LexusES300N/AU-Groove Conventional
2002LexusGS430N/AU-Groove Conventional
2002LexusLS430N/AU-Groove Conventional
2002LexusLX470N/AU-Groove Conventional
2002LexusRX300N/AU-Groove Conventional
2002LexusSC430N/AU-Groove Conventional
2002Mercedes-BenzC230N/AU-Groove Conventional
2002Mercedes-BenzC32 AMGN/ATwo spark plugs are required per cylinder.; U-Groove Conventional
2002Mercedes-BenzSLK230N/AU-Groove Conventional
2002ToyotaAvalonN/AU-Groove Conventional
2002ToyotaCamryN/AU-Groove Conventional
2002ToyotaCelicaN/AU-Groove Conventional
2002ToyotaHighlanderN/AU-Groove Conventional
2002ToyotaLand CruiserN/AU-Groove Conventional
2002ToyotaRAV4N/AU-Groove Conventional
2002ToyotaSiennaN/AU-Groove Conventional
2002ToyotaSolaraN/AU-Groove Conventional
2001LexusGS430N/AU-Groove Conventional
2001LexusLS430N/AU-Groove Conventional
2001LexusLX470N/AU-Groove Conventional
2001LexusRX300N/AU-Groove Conventional
2001Mercedes-BenzSLK230N/AU-Groove Conventional
2001ToyotaAvalonN/AU-Groove Conventional
2001ToyotaCelicaN/AU-Groove Conventional
2001ToyotaHighlanderN/AU-Groove Conventional
2001ToyotaLand CruiserN/AU-Groove Conventional
2001ToyotaRAV4N/AU-Groove Conventional
2001ToyotaSiennaN/AU-Groove Conventional
2000LexusGS400N/AU-Groove Conventional
2000LexusLS400N/AU-Groove Conventional
2000LexusLX470N/AU-Groove Conventional
2000LexusRX300N/AU-Groove Conventional
2000LexusSC400N/AU-Groove Conventional
2000ToyotaAvalonN/AU-Groove Conventional
2000ToyotaCelicaN/AU-Groove Conventional
2000ToyotaLand CruiserN/AU-Groove Conventional
1999LexusGS400N/AU-Groove Conventional
1999LexusLS400N/AU-Groove Conventional
1999LexusLX470N/AU-Groove Conventional
1999LexusRX300N/AU-Groove Conventional
1999LexusSC400N/AU-Groove Conventional
1999ToyotaCelicaN/AU-Groove Conventional
1999ToyotaLand CruiserN/AU-Groove Conventional
1998LexusGS400N/AU-Groove Conventional
1998LexusLS400N/AU-Groove Conventional
1998LexusLX470N/AU-Groove Conventional
1998LexusSC400N/AU-Groove Conventional
1998ToyotaCelicaN/AU-Groove Conventional
1998ToyotaLand CruiserN/AU-Groove Conventional
1998ToyotaSupraN/AU-Groove Conventional
1997LexusLS400N/AU-Groove Conventional
1997LexusSC400N/AU-Groove Conventional
1997ToyotaCelicaN/AU-Groove Conventional
1997ToyotaPreviaN/AU-Groove Conventional
1997ToyotaRAV4N/AU-Groove Conventional
1997ToyotaSupraN/AU-Groove Conventional
1996LexusSC400N/AU-Groove Conventional
1996ToyotaCamryN/AU-Groove Conventional
1996ToyotaCelicaN/AU-Groove Conventional
1996ToyotaPreviaN/AU-Groove Conventional
1996ToyotaRAV4N/AU-Groove Conventional
1996ToyotaSupraN/AU-Groove Conventional
1995LexusES300N/AU-Groove Conventional
1995LexusSC400N/AU-Groove Conventional
1995ToyotaAvalonN/AU-Groove Conventional
1995ToyotaCamryN/AU-Groove Conventional
1995ToyotaCelicaN/AU-Groove Conventional
1995ToyotaMR2N/AU-Groove Conventional
1995ToyotaPreviaN/AU-Groove Conventional
1995ToyotaSupraN/AU-Groove Conventional
1994LexusES300N/AU-Groove Conventional
1994LexusLS400N/AU-Groove Conventional
1994LexusSC400N/AU-Groove Conventional
1994ToyotaCamryN/AU-Groove Conventional
1994ToyotaCelicaN/AU-Groove Conventional
1994ToyotaMR2N/AU-Groove Conventional
1994ToyotaSupraN/AU-Groove Conventional
1993LexusLS400N/AU-Groove Conventional
1993LexusSC300N/AU-Groove Conventional
1993LexusSC400N/AU-Groove Conventional
1993ToyotaCamryN/AU-Groove Conventional
1993ToyotaCelicaN/AU-Groove Conventional
1993ToyotaMR2N/AU-Groove Conventional
1993ToyotaSupraN/AU-Groove Conventional
1992LexusLS400N/AU-Groove Conventional
1992LexusSC300N/AU-Groove Conventional
1992LexusSC400N/AU-Groove Conventional
1992ToyotaCamryN/AU-Groove Conventional
1992ToyotaCelicaN/AU-Groove Conventional
1992ToyotaMR2N/AU-Groove Conventional
1991LexusLS400N/AU-Groove Conventional
1990LexusLS400N/AU-Groove Conventional
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DENSO Auto Parts — K20R-U11General Motors — 96130723