NGK 2771 V-Power Spark Plug UR5, Copper Core, Fits Ford GM I/O Marine Engines

The NGK 2771 is a V-Power spark plug (NGK model designation UR5) built on NGK's V-Power platform, which is tested to NGK's original-equipment standards. The design pairs a V-cut center electrode with a concave ground electrode, a combination that increases ignitability and gives more consistent combustion compared to a standard nickel plug. The center electrode uses a copper core for strong heat dissipation and reliable cold starts, while the ground electrode and center electrode tip use nickel construction in a standard ground configuration. A trivalent metal plating is applied to the plug body, which eliminates the need to apply anti-seize compound before installation, simplifying the swap for DIY installers and technicians alike.

Electrically, the NGK 2771 carries 5000 ohms of resistance for suppression of radio-frequency interference, and it uses a 14 millimeter thread size. It is sold individually, one spark plug per package.

This plug is used across a wide range of applications, including Ford and GM engines, Isuzu and Jeep engines, and numerous stern-drive (I/O) marine engine builders such as Berkeley, Flagship, Hardin, Indmar, and OMC, in addition to Winco generators, Toro utility vehicles, Chrysler and Ford commercial/industrial engines, and various farm equipment applications. Always confirm the correct spark plug against your engine's maintenance manual before ordering.

Specifications

• Brand: NGK
• Manufacturer Part Number: 2771
• Manufacturer Model Number: UR5
• Spark Plug Series: V-Power
• Resistance: 5000 ohms
• Ground Configuration: Standard
• Ground Electrode Core Material: Nickel
• Center Electrode Core Material: Copper
• Center Electrode Tip Material: Nickel
• Thread Size: 14 millimeters
• Plating: Trivalent metal plating
• Quantity: 1 spark plug per package
• UPC: 087295127711
• Weight: 0.15 pounds
• Fit Type: Universal Fit

Fitment

• Ford: 1970-1997
• GM: 1971-1995
• Isuzu: 1989-1994
• Jeep: 1984-1986
• Berkeley (I/O): 1974-1990
• Flagship (I/O): 1971-1977
• Hardin (I/O): 1969-1990
• Indmar (I/O): 1976-1997
• OMC (I/O): 1973-1985
• Winco: Generator applications
• Toro: Utility vehicle applications
• Chrysler, Ford: Commercial/industrial applications
• Various: Farm equipment applications

Frequently Asked Questions

What is the NGK 2771 spark plug? The NGK 2771 is a V-Power spark plug, corresponding to NGK's UR5 model, featuring a copper-core center electrode and a V-cut electrode design for improved ignitability.

Does the NGK 2771 require anti-seize compound? No. The NGK 2771 spark plug has a trivalent metal plating that eliminates the need to apply anti-seize compound during installation.

What is the thread size of the NGK 2771 spark plug? The NGK 2771 uses a 14 millimeter thread size.

What is the electrical resistance of the NGK 2771? 5000 ohms of resistance is built into the NGK 2771 for suppression of radio-frequency interference.

What materials are used in the NGK 2771 spark plug? Copper forms the center electrode core, while nickel is used for the ground electrode core and the center electrode tip on the NGK 2771.

What makes and engines does the NGK 2771 fit? The NGK 2771 fits Ford (1970-1997), GM (1971-1995), Isuzu (1989-1994), and Jeep (1984-1986) engines, along with I/O marine engines from Berkeley, Flagship, Hardin, Indmar, and OMC, plus Winco generators, Toro utility vehicles, Chrysler and Ford commercial/industrial engines, and various farm equipment.

How many spark plugs come in one package? One NGK 2771 spark plug ships per package.

Is the NGK 2771 a genuine NGK part? Yes, the NGK 2771 (NGK model UR5) is a genuine NGK V-Power spark plug, not an aftermarket clone.

What is the difference between the NGK 2771 V-Power plug and a standard nickel spark plug? The NGK 2771 uses a V-cut center electrode and concave ground electrode design that increases ignitability compared to a standard nickel plug, along with trivalent plating that removes the anti-seize step.

What ground configuration does the NGK 2771 use? The NGK 2771 uses a standard ground electrode configuration.

How much does the NGK 2771 spark plug weigh? The NGK 2771 spark plug weighs 0.15 pounds.

Should I confirm compatibility before ordering the NGK 2771? Yes, check your engine's maintenance manual before ordering the NGK 2771, since using the wrong spark plug can reduce performance, hurt fuel economy, or damage the engine.