Champion 520 W20 Industrial Spark Plug

• Shell
• Thread Diameter7/8"
• Seat TypeGasket
• Reach20.6mm (13/16")
• Hex Size15/16" (24mm)
• Terminal TypeRemovable Nut
• Gap.026" (0.65mm)

• Center Electrode
• MaterialNickel
• TypeOversized
• Size3.2mm
• ProjectionNon-Projected

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorNo
• Heat Range20
• Torque SpecsCast Iron: 50-55 lb. ft.

• Part Information
• BrandChampion
• Replacement GasketA-478

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• 1928
  • Cadillac
    • 341 A Base Verify fitment
  • Nash
    • Standard Base Verify fitment
• 1927
  • Cadillac
    • 341 Base Verify fitment
  • Nash
    • Standard Base Verify fitment
• 1926
  • Cadillac
    • 341 Base Verify fitment
  • Chevrolet
    • Superior Base Verify fitment
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  • Cleveland
    • Model 31 Base Verify fitment
    • Model 43 Base Verify fitment
  • Nash
    • Light Six Base Verify fitment
• 1925
  • Cadillac
    • V-63 Base Verify fitment
  • Chevrolet
    • Superior Truck Base Verify fitment
  • Cleveland
    • Model 31 Base Verify fitment
    • Model 43 Base Verify fitment
  • Nash
    • Light Six Base Verify fitment
• 1924
  • Cadillac
    • V-63 Base Verify fitment
  • Chevrolet
    • Superior Base Verify fitment
    • Superior Truck Base Verify fitment
  • Cleveland
    • Model 42 Base Verify fitment
• 1923
  • Cadillac
    • Type 61 Base Verify fitment
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• 1922
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  • Chevrolet
    • 490 Base Verify fitment
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  • Cleveland
    • Model 41 Base Verify fitment
• 1921
  • Cadillac
    • Type 59 Base Verify fitment
  • Chevrolet
    • 490 Base Verify fitment
    • FB Base Verify fitment
    • Model G Base Verify fitment
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  • Cleveland
    • Model 41 Base Verify fitment
• 1920
  • Cadillac
    • Type 59 Base Verify fitment
  • Cleveland
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• 1919
  • Cadillac
    • Type 57 Base Verify fitment
  • Cleveland
    • Model 40 Base Verify fitment
• 1918
  • Cadillac
    • Type 57 Base Verify fitment
• 1917
  • Cadillac
    • Type 55 Base Verify fitment
• 1916
  • Cadillac
    • Type 53 Base Verify fitment
• 1915
  • Cadillac
    • Type 51 Base Verify fitment
• 1914
  • Cadillac
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• 1913
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• 1912
  • Cadillac
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• 1911
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• 1910
  • Cadillac
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• 1909
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• 1908
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• 1907
  • Cadillac
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• 1906
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• 1905
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    • Model D Base Verify fitment
• 1904
  • Cadillac
    • Model A Base Verify fitment
    • Model B Base Verify fitment
• 1903
  • Cadillac
    • Model A Base Verify fitment

Powersports

Sorry, no powersports applications are associated with this part.

Non-Automotive

Sorry, no non-automotive applications are associated with this part.