BDFHYK Set of 8 Iridium Spark Plug Compatible with Expedition F150 F250 F350 F450, Compatible with Lincoln Mark LT Navigator,5.4L 6.8L V8 V10 Engine Replacement for SP515 SP546

Works great and heck of a deal.

Same as OEM, same part number as well.

I love this product because the original equipment in the truck was already past it's life expectancy. So I had issues with my truck where several cylinders were carbonized and so I added a bunch of additives to the fuel and the oil and did several oil changes while these spark plugs endured. All of these chemicals I added to the truck one way or another and after a thousand miles they're still holding up really well and my truck is not misfiring or anything like that. And they're burning everything I add to the fuel and oil. I'll buy this product over and over again. Great Product at a Great Price.

One broke after a few hundred miles, will update.

Great plugs. The price on these made me somewhat skeptical, but these iridium sparkpkuga are excellent for the price point. I ordered a spare set just bc.

fuel efficiency and valor for money whit durability excellent

Perfect fit, vehicle is running pretty smooth since changing the spark plugs.

Not Motorcraft but a knock off. I installed them and they work but would not recommend clone plugs as it’s a lot of work to change plugs in a 4.6 ford.