NGK DCPR7E Spark Plug for Evinrude, Johnson, and Mercury Outboard Engines

The NGK DCPR7E is a standard nickel spark plug built for reliable ignition performance in outboard motors and select powersport engines. It uses a solid copper core for superior heat dissipation, strong conductivity, and a broad operating heat range, paired with corrosion-resistant plating that keeps installation and removal easy season after season. The ground electrode uses a standard configuration with a nickel ground electrode core and a nickel center electrode tip over a copper center electrode core, giving consistent spark performance across a wide range of operating temperatures.

This plug is a direct fit for outboard applications including Evinrude (1995-2003), Johnson (1995-2004), and Mercury (2006) outboard motors, and is also used across a range of motorcycle and snowmobile engines including American Iron Horse, BMW, Buell, Harley-Davidson, Titan, and Arctic Cat. Always confirm the correct spark plug against your engine's maintenance manual before ordering, since using an incorrect plug can reduce performance, hurt fuel economy, or damage the engine.

Specifications

• Brand: NGK
• Manufacturer Part Number: DCPR7E
• Resistance: 5000 Ohm
• Ground Configuration: Standard
• Ground Electrode Core Material: Nickel
• Center Electrode Core Material: Copper
• Center Electrode Tip Material: Nickel
• Thread Size: 14mm
• Weight: 0.15 pounds
• Country of Origin: Japan
• UPC: 087295139325

Fitment

• Outboard: Evinrude (1995-2003)
• Outboard: Johnson (1995-2004)
• Outboard: Mercury (2006)
• Motorcycle: American Iron Horse (2003-2007)
• Motorcycle: BMW (1997-2008)
• Motorcycle: Buell (1987-2005)
• Motorcycle: Harley-Davidson (1985-2009)
• Motorcycle: Titan (2005)
• Snowmobile: Arctic Cat (2002)

Replaces (OEM)

• 55188857
• 55190788
• 55226083
• 12127681415
• 12129065004

Frequently Asked Questions

What is the NGK DCPR7E spark plug used for? The NGK DCPR7E is a standard nickel spark plug designed for outboard motors and select motorcycle and snowmobile engines, providing reliable ignition performance and a broad heat range.

Does the NGK DCPR7E fit Evinrude and Johnson outboards? Yes, the NGK DCPR7E is fitted to Evinrude outboards from 1995 to 2003 and Johnson outboards from 1995 to 2004.

Is the NGK DCPR7E compatible with Mercury outboard engines? The DCPR7E fits Mercury outboard engines from 2006.

What is the resistance rating of the DCPR7E spark plug? The NGK DCPR7E has a resistance of 5000 Ohm.

What material is the center electrode of the DCPR7E made from? The center electrode core is copper for heat dissipation and conductivity, with a nickel center electrode tip.

What thread size does the NGK DCPR7E use? The DCPR7E has a 14mm thread size.

How much does the NGK DCPR7E spark plug weigh? The NGK DCPR7E weighs 0.15 pounds.

Are there OEM equivalent part numbers for the DCPR7E? Yes, OEM equivalent numbers for the DCPR7E include 55188857, 55190788, and 55226083 (Alfa Romeo), and 12127681415 and 12129065004 (BMW).

Does the DCPR7E fit motorcycle engines as well as outboards? Yes, in addition to outboard fitment, the DCPR7E is used on American Iron Horse, BMW, Buell, Harley-Davidson, and Titan motorcycles, as well as Arctic Cat snowmobiles from 2002.

Where is the NGK DCPR7E manufactured? The NGK DCPR7E spark plug is manufactured in Japan.

How many spark plugs come in one purchase of the DCPR7E? The NGK DCPR7E is sold as a single spark plug, unit count of one.

Why is a correct spark plug fitment important for my engine? Installing an incorrect plug in place of the NGK DCPR7E can reduce optimum performance, lower fuel economy, or cause engine damage, so it should always be checked against your engine's maintenance manual.