Dennis Kirk Inc.
Legendary Service... Ask Your Friends - Since 1969
Need Assistance?
Over 150K Powersport Items - In-Stock and ready to ship today! View tires, apparel, helmets, exhaust and more!

Denso Iridium Spark Plug - IW16

  • Part #: IW16
  • Manufacturer Part #: IW16

MSRP Price: $10.95

Our Price: $9.85

You Save:
$1.10 (10%)
10+ on Hand

Ships Today!
If ordered in:

0 1 : 2 0 : 4 0
  • HOUR
  • MIN
  • SEC

Overview of Denso Iridium Spark Plug - IW16

  • Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
  • Six times harder than platinum, iridium does not melt in temperatures above 4000 deg. F
  • Ground electrode features a tapered cut and U-groove that forms a large volume area for the flames center
  • 360 deg. laser welding of electrode provides a seal that resists wear even in the worst conditions
  • Replaces NGK #'s: BP5ES, BPR5ES, BP5ES-11, BPR5ES-11 and BPR5EVX-11

Specs for Denso Iridium Spark Plug - IW16

Type Resistor
Units Each
Weight 0.50 lbs

Specs for Denso Iridium Spark Plug - IW16

Type Resistor
Units Each
Weight 0.50 lbs

Fitment for Denso Iridium Spark Plug - IW16

See if this part fits your ride

Part IW16 fits the following machines

Harley-Davidson
  • 1984 Harley-Davidson Disc Glide - FXRDG
  • 1998 Harley-Davidson Dyna Convertible - FXDS-CONV
  • 1997 Harley-Davidson Dyna Convertible - FXDS-CONV
  • 1996 Harley-Davidson Dyna Convertible - FXDS-CONV
  • 1995 Harley-Davidson Dyna Convertible - FXDS-CONV
  • 1992 Harley-Davidson Dyna Daytona - FXDB
  • 1992 Harley-Davidson Dyna Glide Custom - FXDC
  • 1998 Harley-Davidson Dyna Low Rider - FXDL
  • 1997 Harley-Davidson Dyna Low Rider - FXDL
  • 1996 Harley-Davidson Dyna Low Rider - FXDL
  • 1995 Harley-Davidson Dyna Low Rider - FXDL
  • 1994 Harley-Davidson Dyna Low Rider - FXDL
  • 1993 Harley-Davidson Dyna Low Rider - FXDL
  • 1994 Harley-Davidson Dyna Low Rider Convertible - FXDS-CONV
  • 1991 Harley-Davidson Dyna Sturgis - FXDB
  • 1998 Harley-Davidson Dyna Super Glide - FXD
  • 1997 Harley-Davidson Dyna Super Glide - FXD
  • 1996 Harley-Davidson Dyna Super Glide - FXD
  • 1995 Harley-Davidson Dyna Super Glide - FXD
  • 1998 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1997 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1996 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1995 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1994 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1993 Harley-Davidson Dyna Wide Glide - FXDWG
  • 1981 Harley-Davidson Electra Glide - FLH
  • 1980 Harley-Davidson Electra Glide - FLH-80
  • 1979 Harley-Davidson Electra Glide - FLH-80
  • 1981 Harley-Davidson Electra Glide - FLHS
  • 1980 Harley-Davidson Electra Glide - FLHS
  • 1987 Harley-Davidson Electra Glide - FLHT
  • 1986 Harley-Davidson Electra Glide - FLHT
  • 1985 Harley-Davidson Electra Glide - FLHT
  • 1981 Harley-Davidson Electra Glide Classic - FLHC
  • 1980 Harley-Davidson Electra Glide Classic - FLHC
  • 1979 Harley-Davidson Electra Glide Classic - FLHC
  • 1998 Harley-Davidson Electra Glide Classic - FLHTC
  • 1997 Harley-Davidson Electra Glide Classic - FLHTC
  • 1996 Harley-Davidson Electra Glide Classic - FLHTC
  • 1995 Harley-Davidson Electra Glide Classic - FLHTC
  • 1994 Harley-Davidson Electra Glide Classic - FLHTC
  • 1993 Harley-Davidson Electra Glide Classic - FLHTC
  • 1992 Harley-Davidson Electra Glide Classic - FLHTC
  • 1991 Harley-Davidson Electra Glide Classic - FLHTC
  • 1990 Harley-Davidson Electra Glide Classic - FLHTC
  • 1989 Harley-Davidson Electra Glide Classic - FLHTC
  • 1988 Harley-Davidson Electra Glide Classic - FLHTC
  • 1987 Harley-Davidson Electra Glide Classic - FLHTC
  • 1986 Harley-Davidson Electra Glide Classic - FLHTC
  • 1985 Harley-Davidson Electra Glide Classic - FLHTC
  • 1984 Harley-Davidson Electra Glide Classic - FLHTC
  • 1998 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1997 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1996 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 1981 Harley-Davidson Electra Glide Heritage - FLH
  • 1985 Harley-Davidson Electra Glide Special - FLHX
  • 1989 Harley-Davidson Electra Glide Sport - FLHS
  • 1988 Harley-Davidson Electra Glide Sport - FLHS
  • 1987 Harley-Davidson Electra Glide Sport - FLHS
  • 1998 Harley-Davidson Electra Glide Standard - FLHT
  • 1997 Harley-Davidson Electra Glide Standard - FLHT
  • 1996 Harley-Davidson Electra Glide Standard - FLHT
  • 1995 Harley-Davidson Electra Glide Standard - FLHT
  • 1998 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1997 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1996 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1995 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1994 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1993 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1992 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1991 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1990 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1989 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 1998 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1997 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1996 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1995 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 1981 Harley-Davidson Fat Bob - FXEF
  • 1980 Harley-Davidson Fat Bob - FXEF
  • 1979 Harley-Davidson Fat Bob - FXEF-80
  • 1999 Harley-Davidson FXR 2
  • 1999 Harley-Davidson FXR 3
  • 2000 Harley-Davidson FXR 4
  • 1990 Harley-Davidson Heritage Softail - FLST
  • 1989 Harley-Davidson Heritage Softail - FLST
  • 1988 Harley-Davidson Heritage Softail - FLST
  • 1987 Harley-Davidson Heritage Softail - FLST
  • 1986 Harley-Davidson Heritage Softail - FLST
  • 1999 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1998 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1997 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1996 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1995 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1994 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1993 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1992 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1991 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1990 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1989 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1988 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1987 Harley-Davidson Heritage Softail Classic - FLSTC
  • 1993 Harley-Davidson Heritage Softail Nostalgia - FLSTN
  • 1996 Harley-Davidson Heritage Softail Special - FLSTN
  • 1995 Harley-Davidson Heritage Softail Special - FLSTN
  • 1994 Harley-Davidson Heritage Softail Special - FLSTN
  • 1999 Harley-Davidson Heritage Softail Springer - FLSTS
  • 1998 Harley-Davidson Heritage Softail Springer - FLSTS
  • 1997 Harley-Davidson Heritage Softail Springer - FLSTS
  • 1985 Harley-Davidson Low Glide - FXRS
  • 1984 Harley-Davidson Low Glide - FXRS
  • 1985 Harley-Davidson Low Glide Custom - FXRC
  • 1993 Harley-Davidson Low Rider - FXRS
  • 1992 Harley-Davidson Low Rider - FXRS
  • 1991 Harley-Davidson Low Rider - FXRS
  • 1990 Harley-Davidson Low Rider - FXRS
  • 1989 Harley-Davidson Low Rider - FXRS
  • 1988 Harley-Davidson Low Rider - FXRS
  • 1987 Harley-Davidson Low Rider - FXRS
  • 1986 Harley-Davidson Low Rider - FXRS
  • 1981 Harley-Davidson Low Rider - FXS
  • 1980 Harley-Davidson Low Rider - FXS-80
  • 1979 Harley-Davidson Low Rider - FXS-80
  • 1985 Harley-Davidson Low Rider - FXSB
  • 1987 Harley-Davidson Low Rider Chrome - FXRC
  • 1993 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1992 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1991 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1990 Harley-Davidson Low Rider Convertible - FXRS-CONV
  • 1994 Harley-Davidson Low Rider Custom - FXLR
  • 1993 Harley-Davidson Low Rider Custom - FXLR
  • 1992 Harley-Davidson Low Rider Custom - FXLR
  • 1991 Harley-Davidson Low Rider Custom - FXLR
  • 1990 Harley-Davidson Low Rider Custom - FXLR
  • 1989 Harley-Davidson Low Rider Custom - FXLR
  • 1988 Harley-Davidson Low Rider Custom - FXLR
  • 1987 Harley-Davidson Low Rider Custom - FXLR
  • 1993 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1992 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1991 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1990 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1989 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1988 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1987 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1986 Harley-Davidson Low Rider Sport - FXRS-SP
  • 1998 Harley-Davidson Road Glide - FLTR
  • 1998 Harley-Davidson Road King - FLHR
  • 1997 Harley-Davidson Road King - FLHR
  • 1996 Harley-Davidson Road King - FLHR
  • 1995 Harley-Davidson Road King - FLHR
  • 1994 Harley-Davidson Road King - FLHR
  • 1998 Harley-Davidson Road King Classic Injected - FLHRC I
  • 1998 Harley-Davidson Road King Injected - FLHR I
  • 1997 Harley-Davidson Road King Injected - FLHR I
  • 1996 Harley-Davidson Road King Injected - FLHR I
  • 1993 Harley-Davidson Softail - FXST
  • 1992 Harley-Davidson Softail - FXST
  • 1991 Harley-Davidson Softail - FXST
  • 1990 Harley-Davidson Softail - FXST
  • 1989 Harley-Davidson Softail - FXST
  • 1988 Harley-Davidson Softail - FXST
  • 1987 Harley-Davidson Softail - FXST
  • 1986 Harley-Davidson Softail - FXST
  • 1985 Harley-Davidson Softail - FXST
  • 1984 Harley-Davidson Softail - FXST
  • 1999 Harley-Davidson Softail Custom - FXSTC
  • 1998 Harley-Davidson Softail Custom - FXSTC
  • 1997 Harley-Davidson Softail Custom - FXSTC
  • 1996 Harley-Davidson Softail Custom - FXSTC
  • 1995 Harley-Davidson Softail Custom - FXSTC
  • 1994 Harley-Davidson Softail Custom - FXSTC
  • 1993 Harley-Davidson Softail Custom - FXSTC
  • 1992 Harley-Davidson Softail Custom - FXSTC
  • 1991 Harley-Davidson Softail Custom - FXSTC
  • 1990 Harley-Davidson Softail Custom - FXSTC
  • 1989 Harley-Davidson Softail Custom - FXSTC
  • 1988 Harley-Davidson Softail Custom - FXSTC
  • 1987 Harley-Davidson Softail Custom - FXSTC
  • 1986 Harley-Davidson Softail Custom - FXSTC
  • 1999 Harley-Davidson Softail Fat Boy - FLSTF
  • 1998 Harley-Davidson Softail Fat Boy - FLSTF
  • 1997 Harley-Davidson Softail Fat Boy - FLSTF
  • 1996 Harley-Davidson Softail Fat Boy - FLSTF
  • 1995 Harley-Davidson Softail Fat Boy - FLSTF
  • 1994 Harley-Davidson Softail Fat Boy - FLSTF
  • 1993 Harley-Davidson Softail Fat Boy - FLSTF
  • 1992 Harley-Davidson Softail Fat Boy - FLSTF
  • 1991 Harley-Davidson Softail Fat Boy - FLSTF
  • 1990 Harley-Davidson Softail Fat Boy - FLSTF
  • 1999 Harley-Davidson Softail Night Train - FXSTB
  • 1999 Harley-Davidson Softail Springer - FXSTS
  • 1998 Harley-Davidson Softail Springer - FXSTS
  • 1997 Harley-Davidson Softail Springer - FXSTS
  • 1996 Harley-Davidson Softail Springer - FXSTS
  • 1995 Harley-Davidson Softail Springer - FXSTS
  • 1994 Harley-Davidson Softail Springer - FXSTS
  • 1993 Harley-Davidson Softail Springer - FXSTS
  • 1992 Harley-Davidson Softail Springer - FXSTS
  • 1991 Harley-Davidson Softail Springer - FXSTS
  • 1990 Harley-Davidson Softail Springer - FXSTS
  • 1989 Harley-Davidson Softail Springer - FXSTS
  • 1988 Harley-Davidson Softail Springer - FXSTS
  • 1997 Harley-Davidson Softail Springer Bad Boy - FXSTSB
  • 1996 Harley-Davidson Softail Springer Bad Boy - FXSTSB
  • 1995 Harley-Davidson Softail Springer Bad Boy - FXSTSB
  • 1999 Harley-Davidson Softail Standard - FXST
  • 1993 Harley-Davidson Sport Glide - FXRT
  • 1992 Harley-Davidson Sport Glide - FXRT
  • 1991 Harley-Davidson Sport Glide - FXRT
  • 1990 Harley-Davidson Sport Glide - FXRT
  • 1989 Harley-Davidson Sport Glide - FXRT
  • 1988 Harley-Davidson Sport Glide - FXRT
  • 1987 Harley-Davidson Sport Glide - FXRT
  • 1986 Harley-Davidson Sport Glide - FXRT
  • 1985 Harley-Davidson Sport Glide - FXRT
  • 1984 Harley-Davidson Sport Glide - FXRT
  • 1986 Harley-Davidson Sport Glide Grand Touring - FXRD
  • 1981 Harley-Davidson Sturgis - FXB
  • 1980 Harley-Davidson Sturgis - FXB
  • 1981 Harley-Davidson Super Glide - FXE
  • 1994 Harley-Davidson Super Glide - FXR
  • 1993 Harley-Davidson Super Glide - FXR
  • 1992 Harley-Davidson Super Glide - FXR
  • 1991 Harley-Davidson Super Glide - FXR
  • 1990 Harley-Davidson Super Glide - FXR
  • 1989 Harley-Davidson Super Glide - FXR
  • 1988 Harley-Davidson Super Glide - FXR
  • 1987 Harley-Davidson Super Glide - FXR
  • 1986 Harley-Davidson Super Glide - FXR
  • 1985 Harley-Davidson Super Glide - FXR
  • 1984 Harley-Davidson Super Glide - FXR
  • 1985 Harley-Davidson Super Glide Fat Bob - FXEF
  • 1981 Harley-Davidson Tour Glide - FLT
  • 1980 Harley-Davidson Tour Glide - FLT
  • 1994 Harley-Davidson Tour Glide Classic - FLTC
  • 1993 Harley-Davidson Tour Glide Classic - FLTC
  • 1992 Harley-Davidson Tour Glide Classic - FLTC
  • 1991 Harley-Davidson Tour Glide Classic - FLTC
  • 1990 Harley-Davidson Tour Glide Classic - FLTC
  • 1989 Harley-Davidson Tour Glide Classic - FLTC
  • 1988 Harley-Davidson Tour Glide Classic - FLTC
  • 1987 Harley-Davidson Tour Glide Classic - FLTC
  • 1986 Harley-Davidson Tour Glide Classic - FLTC
  • 1985 Harley-Davidson Tour Glide Classic - FLTC
  • 1984 Harley-Davidson Tour Glide Classic - FLTC
  • 1995 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1994 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1993 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1992 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1991 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1990 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1989 Harley-Davidson Tour Glide Ultra Classic - FLTCU
  • 1996 Harley-Davidson Tour Glide Ultra Classic Injected - FLTCU I
  • 1986 Harley-Davidson Wide Glide - FXWG
  • 1985 Harley-Davidson Wide Glide - FXWG
  • 1981 Harley-Davidson Wide Glide - FXWG
  • 1980 Harley-Davidson Wide Glide - FXWG

Iridium Spark Plug - IW16

4 out of 5 reviews
FitFinish:
Value:
Quality:
Style:


Fit/Finish:
Value:
Quality:
Style:

Bike runs better

I put these in my Vulcan a few years ago and I swear it ran better and was a touch more powerful. Same goes for the FXD, faster, smoother, better. Great plugs!

Review By:

from Minnesnowda

Was this review helpful to you?


Fit/Finish:
Value:
Quality:
Style:

Review By:

Fit/Finish:
Value:
Quality:
Style:

They Work!

Replaced the stock Harley plugs and the bike runs great! They came pre-gapped at .040 so they were ready to go.

Review By:

from Topeka, KS

Was this review helpful to you?


Fit/Finish:
Value:
Quality:
Style:

iridium spark plug

It is very good for high temerature wear. I think they last twice as long as other spark pluds. I am very satisfied with this product.

Review By:

from thailand

Was this review helpful to you?


Fit/Finish:
Value:
Quality:
Style:

Review By:

Instructions and Manuals for Denso Iridium Spark Plug - IW16

You May Also Be Interested In