SKU: 37740474710

HP Copper Spark Plug - 578C1-6

Sale price$44.96 Regular price$49.95
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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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:
  1. 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
SKU: 37740474710

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Thrifty Shopper
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★★★★★ 5
Buy if you love flat pillows
Love the fact the pillow can be separated into two sections. The thinner section is perfect for stomach sleeping; add the other piece for side sleeping. Add a down pillow for back sleeping. The pillow is fluffy, unlike the rock slab feeling of memory foam.
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Reviewed in the United States on March 31, 2026
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Tom Baldwin
Massapequa, US
★★★★★ 2
Only about 1.75 inches thick, and hard as a rock.
Size: 2.7"H (Standard)
This is nowhere near the 2.7 inches advertised. After waiting 4 days for it to expand, it never got higher than 1.75 inches from bottom to the highest point. Also, I'm not sure what kind of Talalay they claim to use; this was hard as a rock.
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Reviewed in the United States on October 28, 2025
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Roz
Bozeman, US
★★★★★ 5
Wonderful
Size: King (Pack of 1)
This pillow is amazing! If you want a good nights sleep, give this pillow a try!
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Reviewed in the United States on April 27, 2026
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C Oregon
Cuba, US
★★★★★ 5
Great Pillow!
Size: King (Pack of 1)
Excellent product. I have been searching for a pillow that wasn't too soft or too hard and supported my neck. I now wake up without a stiff neck and a headache. Wonderful!
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Reviewed in the United States on January 11, 2026
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Lcm
Battle Creek, US
★★★★★ 4
Comfortable
Size: King (Pack of 1)
An adjustable pillow
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Reviewed in the United States on August 12, 2024

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