Top 5 QL78YC Marine Spark Plug – Automotive Replacement Spark Plugs

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1. Champion

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Champion Copper Plus Small Engine 938M Spark Plug Carton of 1, QL78YC

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Champion #ad - Inhibits corrosion. Built to iso and SAE standards for proven performance. Oe type replacement plug. Copper core center electrode allows for accurate control of heat range for longer life. Copper plus - Dependable Performance and Durability.
BrandChampion #ad
ManufacturerChampion Spark Plug #ad
Height3.94 Inches
Length3.94 Inches
Weight0.06 Pounds
Width3.94 Inches
Part Number938M (QL78YC)
Model938M
WarrantyNon automotive spark plug guarantee. When installed in accordance with Champion recommendations, Champion Copper Plus small engine spark plugs will meet and/or exceed the warranty requirements of the vehicle and or engine manufacturer.

2. Champion

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Champion Copper Plus Small Engine 938S Spark Plug Carton of 24, QL78YC

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Champion #ad - Copper plus - Dependable Performance and Durability. Copper core center electrode allows for accurate control of heat range for longer life. Oe type replacement plug. Inhibits corrosion. Built to iso and SAE standards for proven performance.
BrandChampion #ad
ManufacturerChampion Spark Plug #ad
Height4.25 Inches
Length4.5 Inches
Weight3 Pounds
Width6.5 Inches
Part Number938S
Model938S
WarrantyPlease contact retailer/seller for assistance

3. Champion

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Champion 828M Pack of 4 Copper Marine Spark Plugs QL77JC4

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Champion #ad - Features a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics. Genuine oEM Champion parts. Pack of 4. Resists fouling and provides superior corrosion resistance.
BrandChampion #ad
ManufacturerChampion #ad
Height4 Inches
Length1 Inches
Weight0.5 Pounds
Width4 Inches
Part Number828M QL77JC4
ModelC33828M

4. Champion

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Champion QL77JC4 828M Pack of 8 Spark Plugs

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Champion #ad - Reach: 12. 7mm 1/2", terminal type: solid, hex size: 13/16" 21mm, Gap: .039" 1. 0mm. Genuine oem Champion Spark Plugs. Thread size: 14mm, seat Type: Gasket, Resistor Type: Inductive. Pack of 8. Please consult owner's manual for proper part number identification and proper installation.
BrandChampion #ad
ManufacturerChampion #ad
Height3 Inches
Length2 Inches
Weight0.15 Pounds
Width3 Inches
Part NumberQL77JC4 (828M)
ModelQL77JC4 (828M)

5. Champion

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QL78YC, Champion Copper Plus Small Engine 938M Spark Plug Carton of 4

#ad
Champion #ad - Built to iso and SAE standards for proven performance. Inhibits corrosion. Copper core center electrode allows for accurate control of heat range for longer life. Oe type replacement plug. Copper plus - Dependable Performance and Durability.
BrandChampion #ad
ManufacturerCHAMPION #ad
Height0.93 Inches
Length3.96 Inches
Width3.9 Inches
Part Number938M (QL78YC)
Model938M
WarrantyPlease contact retailer/seller for assistance