Denso 3127 Spark Plug
OE Quality 60-Day Returns
Denso
 Double Platinum

Denso 3127 Spark Plug

Brand Denso 3127
Center Electrode Core Material Copper
Center Electrode Tip Material Platinum
Ground Configuration Standard
Ground Electrode Core Material Nickel
Ground Electrode Quantity 1
Ground Electrode Tip Design Platinum Chip
Hex Size 16.0
Manufacturer Heat Range 20
Pre-Gap Size 0.8
Reach 19.00
Resistance 5000
Seat Type Flat
Thread Diameter 14.00
Product line Double Platinum
Fits Mercedes-Benz, Mitsubishi, Toyota, Nissan, Lexus, and Alfa Romeo · 89 vehicles

OE performance standards. Built to meet strict durability and emissions requirements.

Double Platinum design. Platinum on both electrodes helps maintain consistent spark performance.

Spark plug. Provides reliable secondary ignition for efficient engine operation.

Cross-references DENSO Auto Parts PK20R8, Toyota 90919-01180 and Toyota 90919-01180-83 for the same application. See all 4.

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Denso Double Platinum Spark Plug 3127

Denso Double Platinum spark plug 3127 is built for OE-style ignition performance, durability, and emissions control. It uses a platinum tip on the center electrode and a platinum chip ground design to support consistent spark delivery in demanding applications such as Mercedes-Benz CL600, S600, and SL65 AMG engines.

The Double Platinum line is aimed at vehicles that benefit from stable ignition performance and long service life. This plug also cross-references DENSO Auto Parts PK20R8 for the same application.

Key Features

  • Part number 3127 from Denso Double Platinum
  • Platinum center electrode tip with platinum chip ground electrode design
  • Copper center electrode core and nickel ground electrode core
  • 5000 ohm resistance for ignition system compatibility
  • 0.8 pre-gap size, 14.00 mm thread diameter, 19.00 mm reach
  • Flat seat design with 16.0 mm hex size
  • Manufactured to OE performance, durability, and emissions standards

Detailed Description

Denso 3127 is a Double Platinum spark plug engineered for precise ignition in a wide range of import and luxury applications. The platinum center electrode and platinum chip ground electrode help maintain stable firing characteristics, while the copper core and nickel ground core support efficient heat transfer and dependable operation. This makes it a direct-fit choice for drivers servicing Mercedes-Benz CL600, S600, SL600, SL65 AMG, and S65 AMG models, as well as select Toyota, Lexus, Mitsubishi, Nissan, and Geo applications listed below.

Compatible With 2003-2014 Mercedes-Benz CL600, N/A; 2008-2014 Mercedes-Benz CL65 AMG, N/A; 2005-2006 Mercedes-Benz CL65 AMG, N/A; 2013-2014 Mercedes-Benz SL65 AMG, N/A; 2011 Mercedes-Benz SL65 AMG, N/A; 2005-2009 Mercedes-Benz SL65 AMG, N/A; 2003-2013 Mercedes-Benz S600, N/A; 2006-2013 Mercedes-Benz S65 AMG, N/A; 2004-2009 Mercedes-Benz SL600, N/A; 2003-2006 Mitsubishi Montero, N/A; 2001-2004 Toyota Sequoia, N/A; 2000-2004 Toyota Tundra, N/A; 1993-1998 Nissan Quest, N/A; 1995-1996 Lexus LS400, N/A; 1991-1995 Toyota MR2, N/A; 1990-1993 Toyota Celica, N/A; 1990-1992 Geo Prizm, N/A; 1990-1991 Toyota Corolla, N/A.

What It Helps Address

  • Misfire concerns caused by worn or inconsistent spark plugs
  • Hard starting from degraded ignition performance
  • Rough idle related to weak spark delivery
  • Reduced throttle response from aging plugs
  • Service replacement for OE-style maintenance intervals

Installation Notes and Tips

Verify the thread diameter, reach, seat type, and pre-gap size before installation. This plug uses a flat seat, 14.00 mm thread diameter, 19.00 mm reach, and 0.8 pre-gap size. For Mercedes-Benz CL600, S600, SL600, SL65 AMG, and S65 AMG applications, follow the vehicle service procedure and confirm the correct ignition service layout before replacement.

Fitment language for search: Fits 2003-2014 Mercedes-Benz CL600, N/A; Fits 2008-2014 Mercedes-Benz CL65 AMG, N/A; Fits 2003-2013 Mercedes-Benz S600, N/A; Fits 2004-2009 Mercedes-Benz SL600, N/A; Fits 2000-2004 Toyota Tundra, N/A.

Quality Assurance

Denso manufactures this spark plug to meet strict OE performance, durability, and emissions standards. The Double Platinum design reflects Denso’s focus on stable ignition performance for factory-style service replacement.

Related reading

This part fits 89 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2014Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2014Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2014Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2013Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2013Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2013Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2013Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2013Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2012Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2012Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2012Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2012Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2011Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2011Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2011Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2011Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2011Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2010Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2010Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2010Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2010Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2009Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2008Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2007Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2007Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2007Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2007Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2007Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzS65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2006MitsubishiMontero—N/ADouble Platinum
2005Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2005Mercedes-BenzCL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2005Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2005Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2005Mercedes-BenzSL65 AMG—N/ATwo spark plugs are required per cylinder.; Double Platinum
2005MitsubishiMontero—N/ADouble Platinum
2004Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2004Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2004Mercedes-BenzSL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2004MitsubishiMontero—N/ADouble Platinum
2004ToyotaSequoia—N/ADouble Platinum
2004ToyotaTundra—N/ADouble Platinum
2003Mercedes-BenzCL600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2003Mercedes-BenzS600—N/ATwo spark plugs are required per cylinder.; Double Platinum
2003MitsubishiMontero—N/ADouble Platinum
2003ToyotaSequoia—N/ADouble Platinum
2003ToyotaTundra—N/ADouble Platinum
2002ToyotaSequoia—N/ADouble Platinum
2002ToyotaTundra—N/ADouble Platinum
2001ToyotaSequoia—N/ADouble Platinum
2001ToyotaTundra—N/ADouble Platinum
2000ToyotaTundra—N/ADouble Platinum
1998NissanQuest—N/ADouble Platinum
1997NissanQuest—N/ADouble Platinum
1996LexusLS400—N/ADouble Platinum
1996NissanQuest—N/ADouble Platinum
1995LexusLS400—N/ADouble Platinum
1995NissanQuest—N/ADouble Platinum
1995ToyotaMR2—N/ADouble Platinum
1994NissanQuest—N/ADouble Platinum
1994ToyotaMR2—N/ADouble Platinum
1993NissanQuest—N/ADouble Platinum
1993ToyotaCelica—N/ADouble Platinum
1993ToyotaMR2—N/ADouble Platinum
1992GeoPrizmGSiN/AOE; Spark Plug - Double Platinum
1992ToyotaCelica—N/ADouble Platinum
1992ToyotaMR2—N/ADouble Platinum
1991GeoPrizmGSiN/AOE; Spark Plug - Double Platinum
1991ToyotaCelica—N/ADouble Platinum
1991ToyotaCorollaGTSN/ADouble Platinum
1991ToyotaMR2—N/ADouble Platinum
1990GeoPrizmGSiN/AOE; Spark Plug - Double Platinum
1990ToyotaCelica—N/ADouble Platinum
1990ToyotaCorollaGTSN/ADouble Platinum
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 — PK20R8Toyota — 90919-01180Toyota — 90919-01180-83Toyota — 94849777