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Description
HP Copper Spark Plug - 578C1-6Overview: ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for
Overview:
ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
Features:
- The Copper core is a better conductor than Iridium or Platinum plugs
- Copper dissipates heat much better than other materials
- "C" - Cut Design un-shrouds the spark kernel for a better burn
- Unlike Iridium or Platinum plugs, the ACCEL HP plugs are gapable
- Machine rolled threads for precise thread engagement
- One step colder than stock
- Whether using on the street or on the strip, ACCEL HP Copper Core spark plugs deliver!
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 2017 | Ford | F-150 | Raptor | 213/3.5 V6 |
| 2013 - 2017 | Ford | Explorer | Sport | 213/3.5 V6 |
| 2016 - 2017 | Ford | Explorer | Platinum | 213/3.5 V6 |
| 2015 - 2017 | Lincoln | Navigator | 213/3.5 V6 | |
| 2015 - 2017 | Ford | Expedition | 213/3.5 V6 | |
| 2015 - 2017 | Ford | Transit-150 | 213/3.5 V6 | |
| 2015 - 2017 | Ford | Transit-250 | 213/3.5 V6 | |
| 2015 - 2017 | Ford | Transit-350 | 213/3.5 V6 | |
| 2015 - 2017 | Ford | Transit-350 HD | 213/3.5 V6 | |
| 2014 - 2017 | Ford | Police Interceptor Utility | 213/3.5 V6 | |
| 2017 | Lincoln | MKT | 213/3.5 V6 | |
| 2013 - 2017 | Ford | Taurus | SHO | 213/3.5 V6 |
| 2016 - 2017 | Ford | Flex | Limited | 213/3.5 V6 |
| 2017 | Ford | Flex | SEL | 213/3.5 V6 |
| 2013 - 2017 | Ford | Police Interceptor Sedan | 213/3.5 V6 | |
| 2017 | Ford | GT | 213/3.5 V6 | |
| 2011 - 2014 | Ford | F-150 | FX4 | 213/3.5 V6 |
| 2011 - 2014 | Ford | F-150 | FX2 | 213/3.5 V6 |
| 2010 - 2015 | Ford | Flex | Limited | / |
| 2010 - 2014 | Ford | Flex | SEL | / |
| 2010 - 2016 | Lincoln | MKS | EcoBoost | 213/3.5 V6 |
| 2010 - 2016 | Lincoln | MKT | EcoBoost | 213/3.5 V6 |
| 2013 - 2017 | Ford | F-150 | Limited | 213/3.5 V6 |
| 2011 - 2017 | Ford | F-150 | Platinum | 213/3.5 V6 |
| 2011 - 2017 | Ford | F-150 | XL | 213/3.5 V6 |
| 2011 - 2017 | Ford | F-150 | XLT | 213/3.5 V6 |
| 2011 - 2017 | Ford | F-150 | King Ranch | 213/3.5 V6 |
| 2011 - 2017 | Ford | F-150 | Lariat | 213/3.5 V6 |
| 2015 | Ford | F-150 | 213/3.5 V6 | |
| 2010 - 2012 | Ford | Taurus | SHO | / |
| 2011 - 2012 | Ford | Flex | Titanium | / |
| 2016 | Ford | F-150 | XL | 164/2.7 V6 |
| 2016 | Ford | F-150 | XLT | 164/2.7 V6 |
| 2016 - 2017 | Ford | F-150 | SSV | 213/3.5 V6 |
Specs:
| Application | Ford EcoBoost |
|---|---|
| Brand | ACCEL |
| Emission Code | 2 |
| GAP | .030" |
| Heat Range | 1 Step Colder |
| Hex Size | 5/8" |
| Length | Standard |
| Product Type | Spark Plug |
| Projected Tip | Yes |
| Qty | 6 |
| Reach | 1" |
| Resistor | Yes |
| Seat Type | Tapered |
| Style | Copper Core |
| Thread Pitch | 1.25mm |
| Thread Size | 14mm |
| Torque Specification | 7.2-14.5 lb.ft. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Soft and cooling
Color: 08 - Sage Green, Size: Queen (20" X 30")
These are great pillowcases. Very soft, comfortable, and they stay cool throughout the night. They fit perfectly and feel really nice against your skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 4
Sheets are good. Greens don't match
Color: 08 - Sage Green, Size: King (20" X 36"), Color: 08 - Sage Green, Size: King (20" X 36")
I purchased the sage green sheets to go along with another Bedsure comforter, then purchased 2 more pillow cases (because i
I like a lot of pillows) and the greens don't exactly match. This doesn't REALLY bother me as I feel like its fine with a little "texture."
Sheets feel nice and light and I love the look of it in my room.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Good buy Pillowcases
Color: 08 - Sage Green, Size: King (20" X 36")
I bought these Bedsure king-size pillowcases from Amazon and overall I’m very happy with them. The first thing I noticed was how incredibly soft and smooth the fabric feels. They almost feel silky, which makes them very comfortable to sleep on. When you lay your head down, the material feels cool and gentle on the skin, which I really like.
I also appreciate the zipper closure. It keeps the pillow securely inside the case and makes everything look neat and tidy on the bed. The zipper is hidden well and doesn’t feel bulky or uncomfortable.
The only small downside is that the pillowcases are so smooth that the pillows can sometimes slide around or even slip off the bed a little. However, that’s really just because the material is so silky.
Overall, I would still recommend these pillowcases. They are soft, comfortable, and feel like a nice upgrade compared to regular pillowcases.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Very nice pillowcases
Color: 06 - Beige, Size: Standard (20" X 26")
These pillowcases are really nice. They're soft and wash well. I really like the pocket on the end. It makes your pillows look nice and neat. The price is good too.
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Reviewed in the United States on May 31, 2026
★★★★★ 3
Love the sheets but GOSH THEY STINK
Color: 19 - Forest Green, Size: Queen (20" X 30")
I have the dark green sheets and bought these for extra cases to match. I would give them 5 stars if it weren’t for the fact that they smell absolutely horrible. I am so surprised after reading reviews that more people don’t mention it?! Maybe it’s more prominent in darker colors but I have washed these now 3 different times even with scent beads and still hate the smell. I wish I could accurately describe what it smells like— it’s just not good and for some reason, body heat only exacerbates it and makes the smell even worse and I wake up feeling like a smell like the sheets… which isn’t a good thing.
Besides that, I do really enjoy them. They feel great on your skin and I love the color. I wish the smell didn’t kill them so badly for me ☹️
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Reviewed in the United States on June 9, 2026