NGK (3901) CPR7EA-9 Standard Spark Plug, Pack of 1
- Copper core, metal top
- 10mm thread
- 20k-30k mile rating
- 0.02 kg
- Pack of 1
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A copper-core standard plug listed for cars and trucks with a vehicle specific fit. Gap and reach are not given, so match the part number to your engine.
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ASIN: B001RM4R86Model: CPR7EA-9Category: Spark Plugs
Overview
An engine that calls for this exact NGK part number is where this standard plug belongs. It has a copper core and metal top, and it is sold as a single plug.
It suits a routine plug change with a conventional design. The description is generic, with no gap or heat range shown.
Who it's for
Cars and trucks where the service manual names this plug and the regular copper service interval is acceptable. Those who need an upgrade over standard copper should consider another NGK type.
Pros and cons
- Stated service range
- Cross-reference numbers listed
- Sold as a single plug
- Gap size not stated
- Heat range not given
Performance notes
A copper core conducts heat away quickly, but copper wears faster than iridium, hence the modest mileage rating. Correct heat range and gap, set per the engine manual, matter more than the plug's material.
Specifications
| Brand | NGK |
|---|---|
| Model | CPR7EA-9 |
| Dimensions & fit | |
| Thread size | 10mm |
| Weight | 0.02 kg |
| Construction & materials | |
| Core material | Copper |
| Top material | Metal |
| Compatibility & installation | |
| Vehicle type | Car, Truck |
| Other details | |
| Replaces | 92070-0022, 09482-00621, 94701-00420, 94703-00420, 31917-KPH-901 |
| Mileage rating | 20k-30k miles |
| Fit type | Vehicle Specific Fit |
Frequently asked questions
Is the NGK CPR7EA-9 an iridium or platinum plug?
No. The listing gives a copper core with a metal top.
How many plugs come in the pack?
One. The listing says Pack of 1.
Which plugs does it replace?
Cross-references include 92070-0022, 09482-00621, 94701-00420, 94703-00420 and 31917-KPH-901.