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2004 Triumph Speed Four

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NGK 3521 Spark Plug
for 2004 Triumph Speed Four -L U/K

NGK 3521 Spark Plug - 2004 Triumph Speed Four Image 1
NGK 3521 Spark Plug - 2004 Triumph Speed Four Image 2
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NGK 3521 Spark Plug - 2004 Triumph Speed Four Image 4
NGK 3521 Spark Plug - 2004 Triumph Speed Four

NGK
Brand:NGK
Part Number: 3521
UPC: 00087295135211
Weight: 0.03 lbs
Condition:New



On Sale:

$7.53

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

Product Information

Description:

Get the NGK 3521 Spark Plug for your 2004 Triumph Speed Four. Buy now and secure your purchase online!

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Features and Benefits:

  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium
Electrical Terminal Type:
Removable Nut
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Hex Size:
5/8 in.
Insulator Height:
50.00 mm
Manufacturer Heat Range:
9
Part Number:
CR9EIX
Pre-Gap Size:
.032 in.
Reach:
.75 in.
Resistance:
5000.0 Ohm
Seat Type:
Flat
Stock Number:
3521
Thread Diameter:
10.00 mm
Champion Spark Plug #:
RG6HCC
DENSO Auto Parts #:
3521
DENSO Auto Parts #:
4132
DENSO Auto Parts #:
4191
DENSO Auto Parts #:
5366
DENSO Auto Parts #:
5633
DENSO Auto Parts #:
IU27
DENSO Auto Parts #:
IU27A
DENSO Auto Parts #:
U27ES-N-ZU
DENSO Auto Parts #:
U27ES-NZU
DENSO Auto Parts #:
U27ESR-NZU
DENSO Auto Parts #:
VKJ20RZM11
Daihatsu #:
999-06910-X9-024
Harley Davidson #:
31600012
Harley Davidson #:
31600085
Harley Davidson #:
RG6HCC
NGK #:
3521
Suzuki #:
99000-69835-CR9
Yamaha #:
90793-20123
Yamaha #:
90793-20125
Yamaha #:
90793-20151
Yamaha #:
90793-2B125
Country of Origin:
JP

Manufacturer Warranty:

2 Months

NGK 3521 Spark Plug compatibility with your 2004 Triumph Speed Four...

Last Updated: 09/02/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2005

 

2004

 

2003

 

2002

 

2005

 

2004

 

2003

 

2002

 
Triumph Speed Four

-L U/K
1
 
Iridium IX Spark Plug
Gap 0.026
 

Triumph Speed Four



-L U/K Iridium IX Spark Plug
Gap 0.026

1 Per Vehicle

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