The ultimate in spark plug technology and performance
Iridium electrode is smaller than a standard electrode; requires less voltage
Hotter spark and extended spark plug service life compared to conventional plugs
Has the distinctive black ceramic with red lettering and gold-colored corrosion-protected coating on the metal shell
Exceed OEM specifications for plug service life
Sold in pairs in convenient blister pack
The ultimate in spark plug technology and performance
Iridium electrode is smaller than a standard electrode; requires less voltage
Hotter spark and extended spark plug service life compared to conventional plugs
Has the distinctive black ceramic with red lettering and gold-colored corrosion-protected coating on the metal shell
Exceed OE specifications for plug service life
Sold in pairs in convenient blister pack
Product Note:
Specification
Details
Color
Varies (make selection above)
Engine Type
Varies (make selection above)
OEM Reference
Varies (make selection above)
Quantity
2
Range
Standard
Spark Plug Type
Resistor
Thread
Varies (make selection above)
Thread Reach
3/4 in.
Type
Iridium
Wrench Size
Varies (make selection above)
Engine Type
Milwaukee Eight
Quantity
2
Range
Standard
Spark Plug Type
Resistor
Thread Reach
3/4 in.
Type
Iridium
Wrench Size
16mm
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
These plugs increased my gas mileage on my Harley-Davidson M8 114 cammed.
My guess about 10-15 per tank full of gas.
Now this is the good stuff
By Dylan C. on
Verified Purchaser
Really good deal on spark plugs for my Harley Davidson, replaced the stock spark plugs easily.
Harley parts
By Scott B. on
Verified Purchaser
Parts were as described. Will definitely do business with you again.
Thanks!
By Denzil S. on
Verified Purchaser
They really helped the performance of my motorcycle!
I highly recommend
By I. on
Got a pair for my 02 1200 Bobber that's not stock by any means and I noticed a big difference. Heck of a plug. I highly recommend them.
Great product
By Stephen R. on
Verified Purchaser
I have an 02 sportster 883 xl custom and replaced the stock plugs and they seem to make a slight improvement on throttle response and I'm happy with the product and would recommend.
Plug tips
By Nathan G. on
Verified Purchaser
Very good plugs, one of the tips broke off while I was Gaping it. Used it anyway. Runs good. Tiny tip could be an issue. Plugs too expensive to break
How many stars would you give this product? Write a review.
Yes, if you were to choose the 2015 Harley Davidson FLHXS Street Glide Special iridium spark plugs from our fit guide, you'd receive the correct components to fit your machine. They screw right in place of the OEM plugs.
Verified Purchaser
