NGK 703 Standard Spark Plug - BU8H S25 (Case of 25)
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SKU: 703 F29978
BU8H S25 14 Millimeter Thread Size 1/2 Inch Reach 0.016 Inch Pre Gap Size 13/16 Inch Hex Nickel Ground Electrode Core Copper Center Electrode
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BU8H S25
14 Millimeter Thread Size
1/2 Inch Reach
0.016 Inch Pre Gap Size
13/16 Inch Hex
Nickel Ground Electrode Core
Copper Center Electrode
Nickel Center Electrode Tip
Flat Seat
1 Ohm Resistance
For Use With 1999-1978 Mariner/ 2002-1978 Mercury Outboard Engines
98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
High-grade alumina silicate ceramic insulator for superior strength and heat transfer
Cold-rolled threads to prevent cross-threading and damage to cylinder heads
Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
Quantity: 25 per package
14 Millimeter Thread Size
1/2 Inch Reach
0.016 Inch Pre Gap Size
13/16 Inch Hex
Nickel Ground Electrode Core
Copper Center Electrode
Nickel Center Electrode Tip
Flat Seat
1 Ohm Resistance
For Use With 1999-1978 Mariner/ 2002-1978 Mercury Outboard Engines
98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
High-grade alumina silicate ceramic insulator for superior strength and heat transfer
Cold-rolled threads to prevent cross-threading and damage to cylinder heads
Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
Quantity: 25 per package
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