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⚡ Ignite your ride with Motorcraft’s spark of excellence!
The Motorcraft SP588 spark plug features a copper core for enhanced conductivity and a precise 14mm thread size, designed specifically for motorcycle engines. Lightweight and compact, it offers reliable ignition performance backed by Motorcraft’s trusted quality, making it a top choice for riders seeking consistent power and durability.


| ASIN | B09GWB5KY6 |
| Best Sellers Rank | #158,197 in Automotive ( See Top 100 in Automotive ) #1,051 in Automotive Replacement Spark Plugs |
| Brand Name | Motorcraft |
| Compatible with Vehicle Type | Motorcycle |
| Core Material | Copper |
| Customer Reviews | 5.0 5.0 out of 5 stars (5) |
| Included Components | Spark Plug |
| Item Type Name | Spark Plug |
| Manufacturer | Motorcraft |
| Manufacturer Part Number | SP588 |
| Model Number | SP588 |
| Thread Size | 14mm |
| Top Material Type | Copper |
| UPC | 031508140592 |
| Unit Count | 1.0 Count |
C**N
Good buy
Always seem to be a good plug.
C**R
Good
Works great- seller shipped quickly
L**4
Perfect for my 2021 Ford F150 5.0
I recently installed these spark plugs in my 2021 Ford F-150 with the 5.0 V8, and I'm thoroughly impressed. They seamlessly matched the OEM specifications and came pre-gapped, which was a convenient touch, although I made sure to verify the gap myself — a step I'd recommend to anyone. The new plugs immediately resolved a minor misfire issue, a significant improvement given the extensive idling I do with my truck. While I haven't monitored the fuel economy closely, the overall performance boost has left me very satisfied with this purchase.
Trustpilot
2 days ago
1 month ago