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Champion RC12MCC4 Spark Plug for 4.7L Engine by Mopar

Part no: SPRC12MCC4

Champion RC12MCC4 Spark Plug for 4.7L Engine

Please Verify Fitment

This product fits only specific vehicles. Select your vehicle to ensure it fits.

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Product Details


  • 1999-2004 Jeep Grand Cherokee WJ with 4.7L Engine without High Output
  • 2005-2007 Jeep Grand Cherokee WK with 4.7L Engine
  • 2006-2007 Jeep Commander XK with 4.7L Engine


Champion RC12MCC4 type Spark Plug for the listed Jeeps with a 4.7L Engine.

Product Details:

  • Plug Type: RC12MCC4
  • Seat Type: Gasket
  • Hex Size: 15.88mm
  • Thread Size: 14mm
  • Thread Reach: 0.75"
  • Taper Diameter: 0.27"
  • Installed Height: 1.99"
  • Insulator Projection: 0.12"
  • Gap: 0.0394"-0.0433"
  • Center Electrode Diameter: 0.1"
  • Center Electrode Material: Nickel Copper Alloy
  • Ground Electrode Material: Nickel Copper Alloy
  • Classification: Champion Copper Plus
  • Resistor Plug: Y

Parts Included:

  • (1) Champion RC12MCC4 Spark Plug for 4.7L Engine

Years Covered:

1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007

For California residents: Proposition 65 Warning

Vehicle Fitment

2005-2007JeepGrand Cherokee WK
1999-2004JeepGrand Cherokee WJ

Additional Information

SKU Aliases CHH 439, RC12MCC4

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