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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: $7.99

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 $7.19

J&P Part: 383-489

Rating: Read Reviews

Description

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: XS85
  • OEM Reference: J12YC
  • Sold in Units: Each

Fitment

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

Duo Glide FLH : 1955–1964
Duo Glide FLHF : 1958–1964
E : 1948–1950
EL : 1948–1952
Electra Glide Fat Bob FLHFB : 1965–1970
Electra Glide FL : 1973
Electra Glide FLH : 1965–1973
Electra Glide FLHB : 1965–1970
Electra Glide FLHF : 1965–1974
Electra Glide Police Model FLP : 1974
ELF : 1952
ELP : 1949
ELS : 1951–1952
EP : 1949
ES : 1948–1950
FL : 1948–1964
FLB : 1965–1970
FLBF : 1970
FLE : 1953–1956
FLEF : 1953–1956
FLF : 1952–1964
FLFB : 1965–1969
FP : 1949
FS : 1948–1950
Hydra Glide FLHF : 1955–1957
Hydra Glide FLS : 1951–1952
Panhead FL : 1948–1950
Police Model FLP : 1949, 1971–1972
Police Model FLPF : 1971–1972
Superglide Electric Start FXE : 1974
Superglide Kick Start FX : 1971–1974
U : 1948
UL : 1948
US : 1948
WL : 1948

Customer Reviews

  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

  Posted:

Best plugs I have run. evo or tc!

  Posted:

Great plug and price.

  Posted:

so far working well !

  Posted:

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

  Posted:

nice plugs. exact fit! ! !

  Posted:

Great Value

  Posted:

Nice plugs.

  Posted:

Great spark plugs

  Posted:

very good spark plugs!

  Posted:

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

  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.

  Posted:

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

  Posted:

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

  Posted:

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

  Posted:

Reliable performance on a mildly modified Twin Cam

  Posted:

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

  Posted:

Great plugs.

  Posted:

Smooth running plug!

  Posted:

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

  Posted:

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

  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.

  Posted:

great plug

  Posted:

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

  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