NGK Spark Plug P/N:90656
NGK 2685 spark plug for the 1987-1992 Chevrolet Camaro V8 5.7L and other vehicles ignites the air-fuel mixture in each cylinder. This G-Power Platinum plug is one of the NGK spark plugs with a single platinum tip.
A misfire, hard start or rough idle can mean worn plugs, but ignition coils, wires and fuel delivery can also be behind them. With the engine off and cool, look at the electrode and ceramic of a removed plug and measure the gap against 0.040 in (1.0 mm) before you decide.
This plug is a direct-fit replacement for the 1987-1992 Chevrolet Camaro V8 5.7L, which takes eight, and for the 1988-1994 Buick Skylark 4-cylinder 2.3L and the 1988-1994 Pontiac Grand Am 4-cylinder 2.3L, which take four each. If your car is not named here, look up its year and engine on the Buyer's Guide tab.
Fit and size
Build and materials
Interchange: 41-603 · 41-808 · SP-467
5614286 · FR4GP
This part cross-references / interchanges with the following part numbers:
Are these Camaro spark plugs right for a 1987-1992 Chevrolet Camaro V8 5.7L?
Yes. NGK 2685 fits the 1987-1992 Chevrolet Camaro V8 5.7L, which takes eight plugs.
Is this the Pontiac Grand Am spark plug for a 1988-1994 Pontiac Grand Am 4-cylinder 2.3L?
Yes. NGK 2685 fits the 1988-1994 Pontiac Grand Am 4-cylinder 2.3L, which takes four plugs.
Is the NGK 2685 one of the NGK iridium spark plugs?
No. NGK 2685 is a single platinum plug. An NGK Iridium IX spark plug is a different plug and is not what this listing is.
What gap and thread size does this NGK platinum spark plug have?
The gap is 0.040 in (1.0 mm). The thread is M14 - 1.25 with a 0.750 in (19.0 mm) reach and a 5/8 in (16 mm) hex.
Does NGK 2685 replace FR4GP?
Yes. FR4GP is NGK's other number for this plug, and it is listed with the 41-603 and 41-808 cross-references.
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.