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QL78YC - Champion Spark Plug ( #938M)

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$4.18

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Item Number
1383663

Model Number
QL78YC

Manufacturer
Champion Spark Plugs

Category
Spark Plugs

Section
Champion Spark Plugs

Technical information (PDF)
Warranty (PDF)
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Sold in Full Boxes Only, PRICED PER PLUG. Complete Spark Plug Charts In Our Shop/Service Catalog

Additional Info

Replaces OEM 0437929.

Plug Type QL78YC
Seat Type Gasket
Hex Size (Inch) 0.813
Hex Size (MM) 20.650
Thread Size (Inch) 0.551
Thread Size (MM) 14.000
Thread Reach (Inch) 0.5
Taper Diameter (Inch) 0.25
Installed Height (Inch) 2.24
Insulator Projection (Inch) 0.06
Gap (Inch) 0.022-0.028
Gap (MM) 0.56-0.71
Center Electrode Diameter (Inch) 0.1
Center Electrode Material Nickel Copper Alloy
Ground Electrode Material Nickel Copper Alloy
Ground Electrode Quantity 1
Classification Champion Copper Plus Small Engine
Resistor Plug Yes
Resistor Type Q-Type Inductive Suppressor
Manufacturer Heat Range 78
Electrical Terminal Type Non-Removable Nut

Champion Champion Spark Plug - Ql78yc/938m is equivalent to parts:

505449 Evinrude Johnson OMC BRP
505448 Evinrude Johnson OMC BRP
437929 Evinrude Johnson OMC BRP
938 Mercury Marine
816837Q Mercury Marine
816837B2 Mercury Marine
14814Q Mercury Marine
14814568 Mercury Marine
33816837Q Mercury Marine
33816837B 2 Mercury Marine
33 14814Q Mercury Marine
33 14814568 Mercury Marine
33 938 Mercury Marine

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