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E3 Spark Plugs E3.34

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  • E3 Spark Plugs E3.34
  • E3 Spark Plugs E3.34
  • E3 Spark Plugs E3.34
  • E3 Spark Plugs E3.34
  • E3 Spark Plugs E3.34
  • E3 Spark Plugs E3.34
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32 Reviews

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J&P Part: 383-529


E3 Spark Plugs E3.34

• E3.34 is a 14mm, 0.750″ reach plug with a gasket seat

• It is used in a variety of powersport applications, especially older Harley Davidson motorcycles

• The patented DiamondFIRE ground electrode is secured to the shell with two legs to help facilitate heat transfer, and to withstand the intense vibration of powersport engine applications

• The unique DiamondFIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use

• The E3 ground electrode and full-size center electrode also provides optimal performance over an extended product life

• Cannot be gapped

Important Product Notes

Product Specs

Manufacturer Part Number: E3.34

Sold in Units: Each


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Click (+) to view all compatible models

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
Electra Glide Anniversary FLH : 1978
Electra Glide Classic FLHC : 1979, 1981
Electra Glide FLH : 1975, 1977–1978, 1981
Electra Glide FLH-74 : 1980
Electra Glide FLH-80 : 1978–1980
Low Rider FXSB : 1984–1985
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
Sturgis Belt FXB : 1980–1982
Super Glide Custom FXRC : 1985
Super Glide Disc Glide FXRDG : 1984
Super Glide Electric Start FXE : 1975–1978, 1980–1981, 1984
Super Glide Fat Bob FXEF : 1980–1981, 1984–1985
Super Glide Fat Bob FXEF 74CI : 1979
Super Glide Fat Bob FXEF 80CI : 1979
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 Kick Start FX : 1977
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 FLH : 1984
Touring Electra Glide Police FLHTP : 1986–1998
Touring Electra Glide Special Edition FLHX : 1984
Touring Electra Glide Sport FLHS : 1984, 1987–1993
Touring Electra Glide Standard FLHT : 1984–1989, 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 : 1984–1986

Customer Reviews

Overall Rating:
5/5 based on 32 ratings

5 by

These plugs are the best, and JP pricing is a no brainer

5 by

Not sure about fuel economy but the bike definitely starts quicker and runs better. I highly recommend these plugs if you have and older EVO.

5 by

Seem to work similar to the Split Fires I used to use. Noticed a performance boost and no fouling when in stop and go city traffic compared to standard plugs

4 by

I have Sold more E3s in AZ in my AREA than can be imagined. I run Them In my Polaris 500HO My 84 Harley FLHTC. Dodge Ram and RZR 800 I love em

5 by

Speed delivery and a great fit

5 by

bike starts easy and seems to have more power fuel mileage stayed about the same

5 by

Love these olugs!

5 by

They work grate .

5 by

Read about and like the reviews installed in shoevlhead seen big difference. Installing in all my power products.

5 by

great thanks.

5 by

I've been running E3's now for 4 years in my bikes and don't see a need to switch brands for any reason.

0 by

bike started missing so badly I turned around and went home after 10 miles. put 4 year old plugs back in and bike ran great like always. returned

5 by

Best plugs I have ever used

5 by

I'm always tinkering on my bikes but have settled on these for all my bikes. And any I work on get these.

5 by

Great plugs- felt improvement immediately!

5 by

good plug

5 by


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Important Product Notes

Once opened, electrical items cannot be returned, except in the case of a manufacturing defect.

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