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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. Denso 4025

Denso 4025 Spark Plug

Denso 4025 Spark Plug
Denso 4025 Spark Plug Image 1
Denso 4025 Spark Plug

Denso
Brand:Denso
Part Number: 4025
UPC: 042511040250
Weight: 0.11 lbs
Condition:New



On Sale:

$2.89

Availability:
15 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the Denso 4025 Spark Plug for your vehicle. Buy now and secure your purchase online!

U-Groove design provides better ignitability for increased engine efficiency.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Nickel
Gap Size:
0.7 mm
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
U-Groove
Hex Size:
20.6 mm
Manufacturer Heat Range:
22
Reach:
12.70 mm
Seat Type:
Flat
Thread Diameter:
14.00 mm
DENSO Auto Parts #:
W22FS-U
Country of Origin:
CN

Select a vehicle to narrow Denso 4025 Spark Plug fitment info!

Last Updated: 11/08/2023

Years Vehicle Per Vehicle Fit NotesFitment Notes

1969

 

1968

 

1967

 

1969

 

1968

 

1967

 
Kawasaki C2SS

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki C2SS



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1969

 

1968

 

1967

 

1969

 

1968

 

1967

 
Kawasaki C2TR

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki C2TR



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1973

 

1972

 

1971

 

1970

 

1975

 

1974

 

1973

 

1972

 

1971

 

1970

 
Kawasaki G4TR

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki G4TR



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1979

 

1978

 

1977

 

1976

 

1979

 

1978

 

1977

 

1976

 
Kawasaki KD100M

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KD100M



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1987

 

1986

 

1987

 

1986

 
Kawasaki KD80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KD80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1984

 

1983

 

1982

 

1981

 

1980

 

1984

 

1983

 

1982

 

1981

 

1980

 
Kawasaki KD80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KD80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1976

 

1975

 

1976

 

1975

 
Kawasaki KD80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KD80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1981

 

1980

 

1979

 

1978

 

1977

 

1976

 

1981

 

1980

 

1979

 

1978

 

1977

 

1976

 
Kawasaki KM100

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KM100



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1976

 

1975

 

1976

 

1975

 
Kawasaki KT250

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KT250



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1976

 

1976

 
Kawasaki KV100

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KV100



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1980

 

1979

 

1978

 

1977

 

1976

 

1980

 

1979

 

1978

 

1977

 

1976

 
Kawasaki KV75

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki KV75



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1973

 

1975

 

1974

 

1973

 
Kawasaki MC1

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki MC1



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1975

 

1974

 
Kawasaki MT1

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki MT1



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1971

 

1972

 

1971

 
Kawasaki MT1

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Kawasaki MT1



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

2004

 

2004

 
LEM LX2 SR

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

LEM LX2 SR



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1974

 

1974

 
Suzuki 292 Nomad

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki 292 Nomad



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1975

 

1974

 
Suzuki 340 Nomad

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki 340 Nomad



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1978

 

1978

 
Suzuki DS185

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki DS185



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1977

 

1976

 

1975

 

1974

 

1973

 

1977

 

1976

 

1975

 

1974

 

1973

 
Suzuki GT185

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki GT185



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1977

 

1976

 

1977

 

1976

 
Suzuki GT500

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki GT500



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1980

 

1979

 

1980

 

1979

 
Suzuki RM50

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki RM50



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1977

 

1976

 

1975

 

1974

 

1973

 

1977

 

1976

 

1975

 

1974

 

1973

 
Suzuki RV125

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki RV125



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1971

 

1970

 

1969

 

1972

 

1971

 

1970

 

1969

 
Suzuki T250

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki T250



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1971

 

1972

 

1971

 
Suzuki T350

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki T350



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1975

 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 
Suzuki T500 Titan

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki T500 Titan



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1977

 

1976

 

1975

 

1974

 

1977

 

1976

 

1975

 

1974

 
Suzuki TC185

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki TC185



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1976

 

1975

 

1974

 

1976

 

1975

 

1974

 
Suzuki TM75

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki TM75



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1973

 

1972

 

1971

 

1975

 

1974

 

1973

 

1972

 

1971

 
Suzuki TS125

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki TS125



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1979

 

1978

 

1977

 

1976

 

1975

 

1974

 

1973

 

1972

 

1971

 

1979

 

1978

 

1977

 

1976

 

1975

 

1974

 

1973

 

1972

 

1971

 
Suzuki TS185

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki TS185



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1977

 

1976

 

1975

 

1977

 

1976

 

1975

 
Suzuki TS75

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki TS75



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1975

 

1974

 

1975

 

1974

 
Suzuki XR400

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki XR400



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1975

 

1974

 

1975

 

1974

 
Suzuki XR440

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Suzuki XR440



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1983

 

1982

 

1981

 

1983

 

1982

 

1981

 
Yamaha DT80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha DT80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1973

 

1973

 
Yamaha EL433

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha EL433



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1973

 

1972

 

1973

 

1972

 
Yamaha EW433

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha EW433



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1971

 

1970

 

1971

 

1970

 
Yamaha G6S

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha G6S



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1972

 
Yamaha G7S

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha G7S



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1971

 

1971

 
Yamaha GP396

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha GP396



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1973

 

1973

 
Yamaha GT1

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha GT1



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1980

 

1979

 

1978

 

1977

 

1976

 

1980

 

1979

 

1978

 

1977

 

1976

 
Yamaha GT80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha GT80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1979

 

1978

 

1977

 

1976

 

1975

 

1974

 

1973

 

1979

 

1978

 

1977

 

1976

 

1975

 

1974

 

1973

 
Yamaha GTMX

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha GTMX



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1971

 

1971

 
Yamaha JT1

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha JT1



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1972

 
Yamaha JT2

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha JT2



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1972

 

1972

 
Yamaha LS2

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha LS2



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1982

 

1981

 

1980

 

1982

 

1981

 

1980

 
Yamaha MX80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha MX80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1997

 

1997

 
Yamaha RA700 WaveRaider

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha RA700 WaveRaider



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

2008

 

2007

 

2006

 

2008

 

2007

 

2006

 
Yamaha SJ700 Super Jet

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha SJ700 Super Jet



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1973

 

1972

 

1973

 

1972

 
Yamaha SL292

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha SL292



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1969

 

1969

 
Yamaha SL396

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha SL396



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1970

 

1970

 
Yamaha SW396

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha SW396



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
Yamaha SW433

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha SW433



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1974

 

1974

 
Yamaha TL433F

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha TL433F



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1990

 

1989

 

1988

 

1987

 

1990

 

1989

 

1988

 

1987

 
Yamaha WJ500 WaveJammer

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha WJ500 WaveJammer



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 
Yamaha WR500 WaveRunner

-L U/K
2
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha WR500 WaveRunner



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

2 Per Vehicle

1992

 

1991

 

1990

 

1989

 

1988

 

1992

 

1991

 

1990

 

1989

 

1988

 
Yamaha YSR50

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha YSR50



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1976

 

1976

 
Yamaha YZ80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Hot Plug
Standard Plug with Patented U-Groove Design
 

Yamaha YZ80



-L U/K U-Groove Conventional
Gap 0.027
Hot Plug
Standard Plug with Patented U-Groove Design

1 Per Vehicle

1974

 

1974

 
Yamaha YZ80

-L U/K
1
 
U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design
 

Yamaha YZ80



-L U/K U-Groove Conventional
Gap 0.027
Standard Plug with Patented U-Groove Design

1 Per Vehicle