⚡ Ignite your engine’s potential with OEM precision!
OverstockDirect OEM Iridium Spark Plugs (6 pack) SP580X CYFS12YT4X deliver genuine OEM quality with a precise 0.05-inch gap and 14mm thread size, ensuring perfect fit and optimal ignition. Featuring a durable nickel core and ceramic top, these spark plugs are engineered for reliable performance and longevity, ideal for UTV and watercraft engines.
| Brand | OVERSTOCKDIRECT |
| Core Material | Nickel |
| Gap Size | 0.05 Inches |
| Thread Size | 14millimeters |
| Top Material Type | Ceramic |
| Vehicle Service Type | UTV |
| Manufacturer | OverstockDirect |
| Item Weight | 10.5 ounces |
| Package Dimensions | 6.22 x 3.86 x 0.94 inches |
| Manufacturer Part Number | SP580X CYFS12YT4X |
C**S
OEM Fit — Fixed Cylinder 3 Misfire on My 2015 F-150 EcoBoost
These spark plugs were the exact match for my 2015 F-150 EcoBoost, and they did the trick. I was dealing with a misfire in cylinder 3, and after swapping these in, the issue was completely resolved. They all arrived pre-gapped at 0.035, but I regapped them to 0.032, which is what my truck runs best on.✅ True OEM part numbers✅ No damage, packaging was clean✅ Immediate improvement in throttle response✅ Solved the misfire without needing a shop visitPerfect if you’re doing a tune-up or fixing a misfire — especially at this price for all six.
R**X
Great plugs for the cost
Got to replace the 6 plugs in my 2013 Ford F150 XLT and these have been holding up strong for the last 1/2 year w/o any issues. Very happy for the cost and quality.
J**N
Best price, legit item
Exactly as described
N**I
works well
Why did you pick this product vs others?:after 1000 miles i have no issues on my 1st gen ecoboost 3.5.
E**S
Improvement on older truck
Saw the difference in old is new plugs. Truck runs smoother. Fits for 2016 Ford F150.
J**E
OEM brand
Fits right
D**N
Great OEM part at half the cost as from dealer.
For Sequioa 2005 SUV.
W**Y
OEM spark plugs
Perfect fit for my Ford fusion hybrid
Trustpilot
2 months ago
2 weeks ago
