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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. Bosch 6721

Bosch 6721 Spark Plug

Bosch 6721 Spark Plug
Bosch 6721 Spark Plug Image 1
Bosch 6721 Spark Plug

Bosch
Brand:Bosch
Part Number: 6721
UPC: 028851019354
Weight: 0.1 lbs
Condition:New



On Sale:

$4.73

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

Product Information

Description:

Get the Bosch 6721 Spark Plug for your vehicle. Buy now and secure your purchase online!

Bosch OE Fine Wire Platinum Spark Plugs deliver improved ignitability and fuel efficiency. The fine wire design with a platinum firing pin on the center electrode and tapered ground electrode are an economical upgrade from conventional copper core spark plugs. Engineered to meet or exceed Original Equipment specifications for platinum spark plugs.

Features and Benefits:

  • 1 year Technician Warranty (visit www.boschautoparts.com/sparkplugs for details)
  • 4 year customer satisfaction guarantee (visit www.boschautoparts.com/sparkplugs for details)
  • OE Fine Wire design with Platinum firing pin on the center electrode requires up to 24% less voltage to ignite and up to 2 times longer life compared to standard copper spark plugs
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
  • Tapered ground electrode allows for better ignition throughout the life of the spark plug

Specifications:

Center Electrode Core Material:
Nickel-Yttrium and Copper
Center Electrode Tip Material:
Platinum
Electrical Terminal Type:
Non-Removable Nut
Ground Configuration:
Standard
Ground Electrode Core Material:
N/A
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Tapered
Ground Electrode Tip Material:
Nickel-Yttrium
Hex Size:
16
Insulator Material:
Ceramic
Insulator Type:
Projected
Manufacturer Heat Range:
8
Outdoor Power Equipment Application:
No
Package Contents:
Spark Plug
Package Quantity:
1
Pre-Gap Size:
1.1 mm
Product Length:
3.125984 in
Product Width:
0.748031 in
Reach:
19 mm
Resistance:
6000 Ohm
Resistor:
Yes
Seat Type:
Flat
Short Style:
No
Spark Plug Type:
4-Cycle
Thread Diameter:
14 mm
Prop 65 Warning Label Required?:
No
Country of Origin:
DE

Manufacturer Warranty:

72 Months

Select a vehicle to narrow Bosch 6721 Spark Plug fitment info!

Last Updated: 08/11/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1998

 

1998

 
Dodge B1500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B1500



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1998

 

1997

 

1998

 

1997

 
Dodge B1500

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B1500



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

1998

 

1997

 

1998

 

1997

 
Dodge B1500

5.2L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B1500



5.2L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1998

 

1998

 
Dodge B2500

5.2L V8 LPG OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B2500



5.2L V8 LPG OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1998

 

1997

 

1998

 

1997

 
Dodge B2500

5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B2500



5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1997

 

1997

 
Dodge B2500

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B2500



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

1998

 

1998

 
Dodge B3500

5.2L V8 LPG OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B3500



5.2L V8 LPG OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1998

 

1997

 

1998

 

1997

 
Dodge B3500

5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge B3500



5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 
Dodge Dakota

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Dakota



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 
Dodge Dakota

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Dakota



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Dodge Dakota

5.2L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Dakota



5.2L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 
Dodge Durango

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Durango



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Dodge Durango

5.2L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Durango



5.2L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Dodge Durango

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Durango



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

2003

 

2002

 

2001

 

2000

 

2003

 

2002

 

2001

 

2000

 
Dodge Ram 1500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2001

 

2000

 

2001

 

2000

 
Dodge Ram 1500

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

2001

 

2000

 

2001

 

2000

 
Dodge Ram 1500

5.2L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500



5.2L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Dodge Ram 1500

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500



3.9L V6 Gas OHV OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Dodge Ram 1500

5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500



5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

2003

 

2002

 

2001

 

2000

 

1999

 
Dodge Ram 1500 Van

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500 Van



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

2003

 

2002

 

2001

 

2000

 

1999

 
Dodge Ram 1500 Van

5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 1500 Van



5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2002

 

2001

 

2000

 

2002

 

2001

 

2000

 
Dodge Ram 2500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 2500



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Dodge Ram 2500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 2500



5.9L V8 Gas OHV OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

2003

 

2002

 

2001

 

2000

 

1999

 
Dodge Ram 2500 Van

5.2L V8 CNG OHV,
5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 2500 Van



5.2L V8 CNG OHV,
5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2001

 

2001

 
Dodge Ram 2500 Van

3.9L V6 Gas OHV
6
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 2500 Van



3.9L V6 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

6 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Dodge Ram 2500 Van

5.2L V8 LPG OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 2500 Van



5.2L V8 LPG OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2002

 

2001

 

2000

 

2002

 

2001

 

2000

 
Dodge Ram 3500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 3500



5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Dodge Ram 3500

5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 3500



5.9L V8 Gas OHV OE Fine Wire Platinum
with Marking # RC12LC4
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

2003

 

2002

 

2001

 

2000

 

1999

 
Dodge Ram 3500 Van

5.2L V8 CNG OHV,
5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 3500 Van



5.2L V8 CNG OHV,
5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Dodge Ram 3500 Van

5.2L V8 LPG OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Dodge Ram 3500 Van



5.2L V8 LPG OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1998

 

1998

 
Jeep Grand Cherokee

5.2L V8 Gas OHV,
5.9L V8 Gas OHV
8
 
OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Jeep Grand Cherokee



5.2L V8 Gas OHV,
5.9L V8 Gas OHV OE Fine Wire Platinum
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

8 Per Vehicle

1990

 

1990

 
Nissan 240SX

2.4L L4 Gas SOHC
4
 
OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Nissan 240SX



2.4L L4 Gas SOHC OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

4 Per Vehicle

1990

 

1990

 
Nissan Axxess

2.4L L4 Gas SOHC
4
 
OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Nissan Axxess



2.4L L4 Gas SOHC OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

4 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1994

 

1993

 

1992

 

1991

 

1990

 
Nissan D21

2.4L L4 Gas SOHC
4
 
OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Nissan D21



2.4L L4 Gas SOHC OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

4 Per Vehicle

1997

 

1996

 

1995

 

1997

 

1996

 

1995

 
Nissan Pickup

2.4L L4 Gas SOHC
4
 
OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Nissan Pickup



2.4L L4 Gas SOHC OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

4 Per Vehicle

1992

 

1991

 

1990

 

1992

 

1991

 

1990

 
Nissan Stanza

2.4L L4 Gas SOHC
4
 
OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset
 

Nissan Stanza



2.4L L4 Gas SOHC OE Fine Wire Platinum
For City Driving
Original Center Electrode Material is Copper/Nickel
Do Not Gap, Gap is Preset

4 Per Vehicle