Champion 7445 Spark Plug
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Champion
 Double Platinum Power

Champion 7445 Spark Plug

Brand Champion 7445
Center Electrode Tip Material Platinum
Electrical Terminal Type Non-Removable Nut
Ground Electrode Core Material Platinum
Ground Electrode Quantity 1
Hex Size 0.551
Hex Size 14
Hex Type Hex
Insulator Height 0.118
Manufacturer Heat Range 4
Pre-Gap Size 0.039
Pre-Gap Size 1.0
Reach 1.043
Resistor Type Yes
Seat Type Flat
Product line Double Platinum Power
Fits Mercedes-Benz · 42 vehicles

Double Platinum Power. Delivers stronger performance with a sharper spark focus.

Platinum electrodes. Fine-wire center and pad design help maximize service life.

Heat-Active alloy. Promotes efficient spark delivery for consistent ignition.

Cross-references DENSO Auto Parts 6043, 0041593903 and A0041593903 for the same application. See all 5.

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Champion Double Platinum Power Spark Plug

Champion Double Platinum Power spark plug Part Number 7445 is built for drivers who want consistent ignition performance and long service life. Its platinum fine-wire center electrode and platinum pad ground electrode help sharpen spark focus, while Heat-Active alloy supports stable operation under demanding conditions.

Key Features

  • Platinum center electrode tip material for durable spark delivery
  • Platinum ground electrode core material for extended wear resistance
  • Heat-Active alloy construction for responsive ignition performance
  • Pre-gapped to 0.039 in / 1.0 mm
  • Resistor type spark plug for reduced electrical noise
  • Flat seat design with 1.043 in reach
  • Non-removable nut terminal and 14 mm hex size

Product Details

Champion Double Platinum Power is a performance-focused spark plug line that emphasizes sharper spark concentration and longer electrode life. This Part Number 7445 plug uses platinum on both the center and ground electrodes, which helps maintain consistent firing characteristics over time. It is a direct replacement style spark plug for select Mercedes-Benz AMG applications, including Mercedes-Benz C63 AMG, E63 AMG, CLS63 AMG, ML63 AMG, SL63 AMG, S63 AMG, CL63 AMG, CLK63 AMG, R63 AMG, and SLS AMG model years listed in the fitment data. This part cross-references DENSO Auto Parts 6043 for the same application.

What It Helps Address

  • Rough idle caused by worn spark plug electrodes
  • Hard starting related to weak ignition output
  • Misfire conditions from inconsistent spark delivery
  • Reduced throttle response from degraded plug performance
  • Service intervals affected by electrode wear

Installation Notes and Tips

Verify the vehicle’s required plug type, gap, and heat range before installation. This plug is pre-gapped to 0.039 in / 1.0 mm, and fitment notes for the listed Mercedes-Benz AMG applications specify a 0.040 in gap and REA4PMPB4 plug type number. Confirm the flat seat design, 14 mm hex, 1.043 in reach, and resistor specification match the engine’s requirements. For best results, inspect ignition coils and boots during spark plug service and follow the manufacturer’s torque procedure.

Quality Assurance

Champion’s Double Platinum Power line uses platinum electrode materials and Heat-Active alloy construction to support durable ignition performance and sharper spark focus. Part Number 7445 is built to meet the specifications shown in the product data for the listed Mercedes-Benz AMG applications.

Related reading

This part fits 42 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2015Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2015Mercedes-BenzSLS AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2014Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2014Mercedes-BenzSLS AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2013Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2013Mercedes-BenzSLS AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2012Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2012Mercedes-BenzSL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2012Mercedes-BenzSLS AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzCLS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzE63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzML63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzSL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2011Mercedes-BenzSLS AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzCL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzCLS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzE63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzML63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2010Mercedes-BenzSL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzCL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzCLK63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzCLS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzE63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzML63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2009Mercedes-BenzSL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzC63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzCL63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzCLK63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzCLS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzE63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzML63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2008Mercedes-BenzS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2007Mercedes-BenzCLK63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2007Mercedes-BenzCLS63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2007Mercedes-BenzE63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2007Mercedes-BenzML63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
2007Mercedes-BenzR63 AMG6.3LV8N/AGap 0.040 (in); Plug Type Number REA4PMPB4; Double Platinum Power
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DENSO Auto Parts — 60430041593903A0041593903ILZKAR7A10REA4PMPB4