NGK Spark Plug P/N:90656
NGK 3716 spark plug for the 1983-1990 Ford Mustang 4-cylinder 2.3L, the 1984 Mustang V6 3.8L and other vehicles ignites the air-fuel mixture in the cylinder. It is a single platinum plug, one of the NGK spark plugs offered as an upgrade for engines that originally ran nickel alloy plugs.
Hard starting, a rough idle or a misfire can mean the plugs are worn. Before you replace them, rule out a weak ignition coil, a worn plug wire or a fuel delivery problem, since an engine can misfire for those reasons too.
The 1983-1990 Ford Mustang 4-cylinder 2.3L, the 1984 Mustang V6 3.8L, the 1983-1988 Ford Ranger 4-cylinder 2.3L, the 1983-1985 Ford Escort 4-cylinder 1.6L and the 1985-1990 Escort 4-cylinder 1.9L are among the vehicles this spark plug fits. This listing is one plug. The 1983-1990 Ford Mustang 4-cylinder 2.3L takes four, and the 1984 Mustang V6 3.8L takes six.
Fit and size
Build and materials
Interchange: TR5-1GP
This part cross-references / interchanges with the following part numbers:
Are these Ford Ranger spark plugs right for the 1983-1988 model with the 4-cylinder 2.3L?
Yes. NGK 3716 fits the 1983-1988 Ford Ranger 4-cylinder 2.3L and takes four plugs. If your car is not named here, check its year and engine in the "Vehicles it fits" section.
What thread does the NGK 3716 spark plug have?
NGK 3716 has an M14 - 1.25 thread with cold-rolled threads. It is not a short style plug.
Is this plug the same as the NGK iridium ix spark plug?
No. This listing is a single platinum plug from the G-Power Platinum line with a 0.6 mm platinum tip. NGK iridium spark plugs, including the iridium IX, are separate products.
How do I know if these platinum plugs are worn out?
Hard starting, a rough idle or a misfire can point to worn plugs. A shop can inspect the electrodes to see how worn they are.
Is NGK TR5-1GP the same plug as 3716?
Yes. TR5-1GP is NGK's other number for this plug, which is also sold as NGK 3716.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.