NGK YR5GP spark plug for the 1972-1973 Chevrolet Impala 6-cylinder 4.1L, the 1972-1974 Impala V8 5.7L, 6.6L or 7.4L and other vehicles ignites the air-fuel mixture in the cylinder and is one of the NGK spark plugs with a single platinum tip.
Hard starting, a misfire or a rough idle can mean a plug is worn out. Those signs alone don't prove the plug is the problem, though; a tired ignition wire is another common source.
Listed for a wide range of Chevrolet, GMC, Buick and Pontiac models, the same plug fits the 1972 Chevrolet Camaro V8 6.6L, the 1972-1973 Camaro V8 5.0L, the 1972-1974 Camaro 6-cylinder 4.1L or V8 5.7L and the 1993-1998 Chevrolet B7 V8 6.0L. The 6-cylinder engines take six plugs and the V8 engines take eight. If your car isn't named here, look up its year and engine on the Buyer's Guide tab.
Fit and size
Build and materials
Interchange: 41-830 · HR9APX+
AP145 · APP145 · 4006 · 4206 · 4509 · PTF16TT · 2953
This part cross-references / interchanges with the following part numbers:
Is the NGK YR5GP a Chevy Impala spark plug for the 1972-1973 Chevrolet Impala 6-cylinder 4.1L?
Yes. NGK YR5GP is listed for the 1972-1973 Chevrolet Impala 6-cylinder 4.1L, which takes six plugs, and for the 1972-1974 Impala V8 5.7L, 6.6L or 7.4L, which take eight.
Do these Camaro spark plugs fit the 1972-1973 Chevrolet Camaro V8 5.0L?
Yes. NGK YR5GP is listed for the 1972-1973 Chevrolet Camaro V8 5.0L, and that engine takes eight plugs.
Is the YR5GP one of the NGK iridium spark plugs?
No. This spark plug is a single platinum design with a fine wire 0.6 mm platinum tip on the center electrode, not an iridium one.
Is there a step up from this G-Power Platinum plug, such as an NGK iridium IX spark plug?
Yes. For better performance than this single platinum plug, the NGK Iridium IX is the step up to consider. It is a different plug and is not part of this listing.
What thread size and gap does the NGK YR5GP spark plug have?
The thread is M14 - 1.25 with a 5/8 in (16 mm) hex, and the gap is .040 in (1.0 mm). The seat is tapered.
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.
