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Autolite Finewire Iridium Spark Plug

This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Product may vary from photo(s).

Everyday Low Price: $8.99

Gold Club Price: What's This? The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info $8.09

J&P Part: 383-485

Rating: Read Reviews


Autolite Finewire Iridium Spark Plug

• More focused ignition to prevent fouling than leading standard plug

• .6mm finewire design with Sport V-trim ground electrode engineered to offer improved ignitability and durability over standard plug

• Up to 26% quicker starts than leading standard plugs

• More horsepower and better fuel efficiency than standard plug

• Meets or exceeds OEM design

Product Specs

  • Manufacturer Part Number: XS65
  • OEM Reference: 5R6A
  • Sold in Units: Each


This product fits a variety of motorcycles. Please select yours so we can find the right part and guarantee fitment. Select A Motorcycle

Harley-Davidson® Models

Dyna Low Rider Convertible FXDS-CONV : 1994–1998
Dyna Low Rider FXDL : 1993–1998
Dyna Super Glide Custom FXDC : 1992
Dyna Super Glide Daytona FXDB-D : 1992
Dyna Super Glide FXD : 1995–1998
Dyna Super Glide Sturgis FXDB-S : 1991
Dyna Wide Glide FXDWG : 1993–1998
Low Rider FXSB : 1985
Softail Bad Boy FXSTSB : 1995–1997
Softail Custom FXSTC : 1984–1999
Softail Fat Boy FLSTF : 1990–1999
Softail Heritage Classic FLSTC : 1987–1999
Softail Heritage FLST : 1986–1990
Softail Heritage Springer FLSTS : 1997–1999
Softail Night Train FXSTB : 1998–1999
Softail Nostalgia FLSTN : 1993–1996
Softail Springer FXSTS : 1988–1999
Softail Standard FXST : 1984–1990, 1999
Super Glide Custom FXRC : 1985
Super Glide Disc Glide FXRDG : 1984
Super Glide Fat Bob FXEF : 1985
Super Glide FXR : 1986–1994
Super Glide FXR2 : 1999
Super Glide FXR3 : 1999
Super Glide FXR4 : 2000
Super Glide Grand Touring FXRD : 1986
Super Glide II FXR : 1984–1985
Super Glide Low Rider Anniversary FXRS : 1988
Super Glide Low Rider Convertible FXRS-CONV : 1989–1993
Super Glide Low Rider Custom Anniversary FXLR : 1987
Super Glide Low Rider Custom FXLR : 1987–1994
Super Glide Low Rider FXRS : 1984–1992
Super Glide Low Rider Sport FXRS-SP : 1987–1993
Super Glide Police FXRP : 1984–1994
Super Glide Sport Glide FXRT : 1984–1992
Touring Electra Glide Classic Anniversary FLHTC : 1988
Touring Electra Glide Classic EFI FLHTCI : 1996–1998
Touring Electra Glide Classic FLHTC : 1984–1998
Touring Electra Glide Police FLHTP : 1986–1998
Touring Electra Glide Sport FLHS : 1987–1993
Touring Electra Glide Standard FLHT : 1985–1989, 1995–1998
Touring Electra Glide Ultra Classic EFI FLHTCUI : 1995–1998
Touring Electra Glide Ultra Classic FLHTCU : 1989–1998
Touring Road Glide EFI FLTRI : 1998
Touring Road Glide FLTR : 1998
Touring Road King Classic EFI FLHRCI : 1998
Touring Road King EFI FLHRI : 1996–1998
Touring Road King FLHR : 1994–1998
Touring Road King Police FLHP : 1997–1998
Touring Tour Glide Classic Anniversary FLTC : 1988
Touring Tour Glide Classic FLTC : 1984–1992
Touring Tour Glide FLT : 1984–1986
Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
Touring Tour Glide Ultra Classic FLTCU : 1989–1995
Wide Glide FXWG : 1985–1986

Customer Reviews

 gary.clay3 Posted:

I used these to help with a problem my bike has of backfiring once in awhile after the ignition is tuned off. they worked very well and last about twice as long as the original plug

 stumpginny Posted:

Best plugs I have run. evo or tc!

 HeyMnnshot Posted:

Great plug and price.

 brianscottwilson Posted:

so far working well !

 DJBaar Posted:

Great plugs, but make sure you gap them for the ignition you are running.

 gregwenzel Posted:

nice plugs. exact fit! ! !

 jkaran Posted:

Great Value

 crocodiledendy Posted:

Nice plugs. Posted:

Work great hard to believe spark plugs can add pep to a stock bike.

 grnbud Posted:

Great spark plugs

 bmanceaux Posted:

very good spark plugs!

 stevewebb Posted:

Great plugs for the money. Easy start ups on my carb bike. use these on all my bikes

 lanceman72 Posted:

Excellent Plugs!!! Noticed my New Bike (only 2000 miles) runs better after swapping to these. I've put these plugs in other bikes with the same excellent results.

 Reconscout1 Posted:

no problems as of yet, no fitment issues came well packaged and in good condition.

 pedroleo1 Posted:

Still testing on my 883 Iron. So far so good.

 rdhouse1 Posted:

Got many miles out of them, no miss very happy! Posted:

Reliable performance on a mildly modified Twin Cam

 doug570 Posted:

Excellant plugs. Run nothing but Autolite and these are the best.

 pegasus90 Posted:

Great plugs.

 Gator454 Posted:

Smooth running plug!

 Gator454 Posted:

If you are doing your own work it will pay to use these plugs.

 ScribblinJohnny Posted:

Nice plugs, I expect to see a bit better throttle response.

 Wordhasher Posted:

Every time I buy new plugs, I buy the latest, greatest plugs on the market. Then a couple months later, I throw them away and buy another set of these. You think I'd learn, but I'm a sucker for a great ad.

 qqking Posted:

great plug

 aoxender Posted:

Excellent spark plug, smooth idle, excellent performance. Picked with the help of JP Cycles chat line.

 bogasbugger Posted:

Sweet. Slight but noticeable difference. Smoother ride and less popping. It's hard to tell without a dyno run, but the bike feels more tiny bit more powerful. They look really well made, let's see how long they will last. Up to now, they seem like a good bang for the bucks.

 3120684 Posted:

running a 93 hot setup in a 67 flh these are the only plugs i use. they idle better than any other and are excellent on top end. greate for carb motors

 bikenut53 Posted:

these are great, the only plug I found that will go the whole summer on a panhead

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