ACCEL 0576S-4 Shorty Copper Core Spark Plug
- Pack of 4 shorty copper core plugs
- 14 millimeter threads, standard 5/8 socket
- Universal fit, listed for UTVs
- Alloy steel top
- 4 ounces item weight
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A four pack of shorty copper core plugs for cramped spaces. Heat range and gap are not given.
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ASIN: B007RVTC7WModel: 0576S-4Category: Spark Plugs
Overview
ACCEL builds these shorty plugs so the boots clear the header or manifold and the header tube stays undented. They install with a standard socket and carry machine rolled threads.
Easier socket access than factory plugs makes install simpler in cramped bays. The seller promises bigger flame fronts and more high rpm power, but gives no numbers.
Who it's for
Mechanics working in crowded bays or on UTVs with header clearance problems will value the short body. Anyone without a verified plug number should check before buying.
Pros and cons
- Standard 5/8 socket fits
- Copper core thermal conductivity
- Machine rolled threads
- Pack of four
- Heat range not listed
- Gap not listed
- Warranty details unclear
Performance notes
Copper in the core conducts heat from the tip, which helps resist fouling. A shorter body leaves air space between the boot and the metal beside it, so heat from the header does not damage the boot.
Specifications
| Model | 0576S-4 |
|---|---|
| Dimensions & fit | |
| Thread size | 14 millimeters |
| Weight | 4 ounces |
| Construction & materials | |
| Core material | Copper |
| Top material | Alloy steel |
| Compatibility & installation | |
| Vehicle type | UTV |
| Other details | |
| Number of items | 4 |
| Fit type | Universal fit |
Frequently asked questions
Do ACCEL 0576S-4 plugs need maintenance?
The listing gives no service interval or gap setting. Check the gap against your engine's specification before installing.
What socket do the 0576S-4 plugs use?
The description says a standard 5/8 socket.
Are they for cars?
The listing says universal fit but lists UTV as the vehicle type.