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Champion QL78YC Spark Plug, Pack of 4

Based on 444 reviews
Condition: New
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$18.48
Holiday Deal · 22% off was $23.61

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 12
Order within 21 hours and 48 minutes

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At a glance

Condition
New
Model
QL78YC
Weight
8.48 oz
Core Material
Copper
Top Material Type
Metal
Vehicle Service Type
Car, Truck
Automotive Fit Type
Vehicle Specific Fit
In the box
938-1

Features 2

  • Sold 4 per pack
  • CHAMPION SPARK PLUG CO. QL78YC, CHPQL78YC

Specs 17

Brand Champion
Core Material Copper
Top Material Type Metal
Vehicle Service Type Car, Truck
Number of Items 4
Brand Name Champion
Manufacturer Part Number QL78YC
Item Highlight Replaces 3579. Copper-core center dissipates heat fast across thousands of fitments. 20,000-30,000 mile reliability.

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Excellent replacement plugs.
Work well, motor runs starts like it should again.
Reviewed in the United States on December 27, 2025 by Daniel Donaldson

OEM 2000 Johnson 50hp outboard
Just what I needed.
Reviewed in the United States on June 14, 2026 by SaltyDog

Gap
Not gapped you have to make sure to gap them
Reviewed in the United States on April 16, 2026 by Michael Vitale

Good to go.
Worked great on my 1997 Johnson 90 hp outboard!
Reviewed in the United States on March 21, 2025 by zackery blair

Correct plug
I received the correct spark plugs, 4 stars because they are packaged in crappy plastic with cardboard backing instead of the small cardboard boxes with the little cardboard tubes that protect the electrode.
Reviewed in the United States on May 22, 2025 by Michael

real champs
Theses are the real thing....wasnt sure but they arent fake
Reviewed in the United States on November 9, 2024 by Steve M Smith

they are better than ngk
good job
Reviewed in the United States on September 4, 2025 by James D. CooperIII

50hp mercury plugs
Arrived on time a worked great in my 2 stroke mercury.
Reviewed in the United States on May 23, 2025 by Justin B.
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