The item you selected has ended, but we found something similar.View original listing

YearMakeModelTrimEngine

Picture 1 of 2

NGK - 3521 - Spark Plug, Iridium IX

4.7117 product ratings

The Parts Locker (5638)

99.4% positive feedback

Price:

$6.00

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

Genuine NGK Laser Iridium Spark Plug CR9EIX 3521 Performance

About this product

Product Identifiers

BrandNGK

Manufacturer Part Number3521

eBay Product ID (ePID)171169389

Additional Product Features

Part TypeSpark Plug

All listings for this product

Genuine NGK Laser Iridium Spark Plug CR9EIX 3521 Performance

item 1 Genuine NGK Laser Iridium Spark Plug CR9EIX 3521 Performance

*1* CR9EIX Spark Plug NGK 3521 Iridium IX Motorcycle Auto Truck ATV UTV Water

item 2 *1* CR9EIX Spark Plug NGK 3521 Iridium IX Motorcycle Auto Truck ATV UTV Water

ONE NEW NGK CR9EIX IRIDIUM IX SPARK PLUG #3521 1994-1999 SUZUKI DR350 DR350SE

item 3 ONE NEW NGK CR9EIX IRIDIUM IX SPARK PLUG #3521 1994-1999 SUZUKI DR350 DR350SE

New NGK Spark Plug 3521 / CR9EIX bm5

item 4 New NGK Spark Plug 3521 / CR9EIX bm5

NGK Spark Plug 3521

item 5 NGK Spark Plug 3521

NGK Spark Plug Pre-Gap 0.03 Iridium IX For Aprilia RSV4 Factory

item 6 NGK Spark Plug Pre-Gap 0.03 Iridium IX For Aprilia RSV4 Factory

NGK Spark Plug Pre-Gap 0.03 Iridium IX For Aprilia RSV4 Factory

item 7 NGK Spark Plug Pre-Gap 0.03 Iridium IX For Aprilia RSV4 Factory

NGK CR9EIX - Iridium IX Spark Plug

item 8 NGK CR9EIX - Iridium IX Spark Plug

GENUINE NGK LASER IRIDIUM SPARK PLUG CR9EIX 3521 PERFORMANCE TRIUMPH DAYTONA 675

item 9 GENUINE NGK LASER IRIDIUM SPARK PLUG CR9EIX 3521 PERFORMANCE TRIUMPH DAYTONA 675

+$2.95 shipping

Spark Plug NGK 1006 (1 Spark Plug Only)

item 10 Spark Plug NGK 1006 (1 Spark Plug Only)

NGK Iridium-IX Spark Plug CR9EIX #3521 A29

item 11 NGK Iridium-IX Spark Plug CR9EIX #3521 A29

Iridium Spark Plug NGK 3521

item 12 Iridium Spark Plug NGK 3521

Iridium Spark Plug NGK 3521

item 13 Iridium Spark Plug NGK 3521

NGK SPARK PLUGS IRIDIUM IX SPARK PLUG 3521 CR9EIX HARLEY-DAVIDSON ZR SR TE TC SV

item 14 NGK SPARK PLUGS IRIDIUM IX SPARK PLUG 3521 CR9EIX HARLEY-DAVIDSON ZR SR TE TC SV

NGK Spark Plug 3521; Iridium IX CR9EIX 10.00mm Gasket

item 15 NGK Spark Plug 3521; Iridium IX CR9EIX 10.00mm Gasket

Iridium Spark Plug NGK 3521

item 16 Iridium Spark Plug NGK 3521

1 Pack NGK Iridium IX 3521 Spark Plugs CR9EIX ps

item 17 1 Pack NGK Iridium IX 3521 Spark Plugs CR9EIX ps

NGK 3521 Iridium Sparkplug CR9EIX

item 18 NGK 3521 Iridium Sparkplug CR9EIX

item 19 Ngk Spark Plug P N 3521

NGK CR9EIX Iridium IX Spark Plug 10mm Thread 3/4" Reach for RZR 900 1000 3521

item 20 NGK CR9EIX Iridium IX Spark Plug 10mm Thread 3/4" Reach for RZR 900 1000 3521

+$4.99 shipping

CR9EIX Ngk Spark Plug Ea

item 21 CR9EIX Ngk Spark Plug Ea

Spark Plug-Iridium IX NGK 3521

item 22 Spark Plug-Iridium IX NGK 3521

Ngk 3521 Iridium IX Spark Plug - CR9EIX

item 23 Ngk 3521 Iridium IX Spark Plug - CR9EIX

NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

item 24 NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

item 25 NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

item 26 NGK Iridium-IX Spark Plug CR9EIX #3521 Aprilia Scarabeo 100 4T 2007-2009

Ngk 3521 Iridium IX Spark Plug - CR9EIX 4050824

item 27 Ngk 3521 Iridium IX Spark Plug - CR9EIX 4050824

NGK Iridium IX Spark Plug CR9EIX (3521)

item 28 NGK Iridium IX Spark Plug CR9EIX (3521)

Spark Plug-Iridium IX NGK 3521

item 29 Spark Plug-Iridium IX NGK 3521

+$6.30 shipping

Spark Plug-Iridium IX NGK 3521

item 30 Spark Plug-Iridium IX NGK 3521

+$6.30 shipping

Spark Plug-Iridium IX NGK 3521

item 31 Spark Plug-Iridium IX NGK 3521

Spark Plug-Iridium IX NGK 3521

item 32 Spark Plug-Iridium IX NGK 3521

CR9EIX NGK SPARK PLUG

item 33 CR9EIX NGK SPARK PLUG

NGK Iridium IX Spark Plug - CR9EIX - 3521

item 34 NGK Iridium IX Spark Plug - CR9EIX - 3521

item 35 Genuine NGK NGK Iridium IX Spark Plug 3521

+$8.99 shipping

NGK Single IX Iridium Spark Plug CR9EIX 1989-2020 Harley Davidson Triumph 3521

item 36 NGK Single IX Iridium Spark Plug CR9EIX 1989-2020 Harley Davidson Triumph 3521

+$5.95 shipping

Iridium Spark Plug NGK 3521

item 37 Iridium Spark Plug NGK 3521

NGK 3521 CR9EIX IRIDIUM IX SPARK PLUG

item 38 NGK 3521 CR9EIX IRIDIUM IX SPARK PLUG

NGK Iridium IX Spark Plugs CR9EIX

item 39 NGK Iridium IX Spark Plugs CR9EIX

NGK Iridium IX Spark Plug - CR9EIX Motorcycle ATV/UTV Street Bike Dirt Bike PWC

item 40 NGK Iridium IX Spark Plug - CR9EIX Motorcycle ATV/UTV Street Bike Dirt Bike PWC

Spark Plug-Iridium IX NGK 3521

item 41 Spark Plug-Iridium IX NGK 3521

NGK Iridium IX 3521 Spark Plugs CR9EIX ps

item 42 NGK Iridium IX 3521 Spark Plugs CR9EIX ps

+$8.95 shipping

One New NGK Iridium Resistor Spark Plug 3521

item 43 One New NGK Iridium Resistor Spark Plug 3521

NGK Iridium Spark Plug (Sold Each) CR9EIX 3521 Fits Polaris RZR XP 1000 14-15

item 44 NGK Iridium Spark Plug (Sold Each) CR9EIX 3521 Fits Polaris RZR XP 1000 14-15

Iridium Spark Plug NGK 3521

item 45 Iridium Spark Plug NGK 3521

NGK 3521 Iridium IX Spark Plug for Electrical Spark Plugs ru

item 46 NGK 3521 Iridium IX Spark Plug for Electrical Spark Plugs ru

NGK Iridium Spark Plug 3521 For 2018-2018 Harley FXBRS Softail Breakout 114

item 47 NGK Iridium Spark Plug 3521 For 2018-2018 Harley FXBRS Softail Breakout 114

NGK Iridium Spark Plug 3521 For 2018-2018 Harley Davidson FXFB Softail Fat Bob

item 48 NGK Iridium Spark Plug 3521 For 2018-2018 Harley Davidson FXFB Softail Fat Bob

NGK Iridium Spark Plug 3521 2018-2009 Harley Davidson FXLR Softail Low Rider

item 49 NGK Iridium Spark Plug 3521 2018-2009 Harley Davidson FXLR Softail Low Rider

NGK Iridium Spark Plug 3521 For 1994-2002 Kawasaki ZX900 Ninja ZX-9R

item 50 NGK Iridium Spark Plug 3521 For 1994-2002 Kawasaki ZX900 Ninja ZX-9R

NGK Spark Plug #3521 3521

item 51 NGK Spark Plug #3521 3521

NGK - Iridium IX Spark Plug (CR9EIX) 3521

item 52 NGK - Iridium IX Spark Plug (CR9EIX) 3521

10-17 Yamaha YZ450F WR450F YZ WR 450F NGK Laser Iridium Spark Plug Part# CR9EIX

item 53 10-17 Yamaha YZ450F WR450F YZ WR 450F NGK Laser Iridium Spark Plug Part# CR9EIX

Spark Plug-Iridium IX NGK 3521

item 54 Spark Plug-Iridium IX NGK 3521

NGK Iridium IX Spark Plugs CR9EIX 3521

item 55 NGK Iridium IX Spark Plugs CR9EIX 3521

+$4.95 shipping

item 56 Genuine NGK NGK Iridium IX Spark Plug 3521

+$9.99 shipping

item 57 Genuine NGK NGK Iridium IX Spark Plug 3521

+$9.99 shipping

NGK Iridium IX Spark Plugs - CR9EIX (Replaces CR9E) 3521

item 58 NGK Iridium IX Spark Plugs - CR9EIX (Replaces CR9E) 3521

+$5.95 shipping

Spark Plug-Iridium IX NGK 3521

item 59 Spark Plug-Iridium IX NGK 3521

listings for this product

Ratings and Reviews

4.7

17 product ratings

15 users rated this 5 out of 5 stars
1 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by alex-p78
Jan 21, 2017
This is a most performance spark plugs on market. Great performance and superb acceleration. This is a great low cost mod for any bike.
Excellent performance and great quality. Bike runs well with the new spark's.
Verified purchase: YesCondition: New
by joshsjewelery
Feb 09, 2018
Complete junk!! The threads broke off the plug hand tight.
These are junk!! It broke off in my motor and had to be professionally removed. A simple 2 second job was turned into a whole weekend of no riding and a repair bill.
Verified purchase: YesCondition: New
by joellopez_73
Feb 17, 2016
awesome product
Best of the best
Verified purchase: YesCondition: New
by sammym219
Mar 30, 2016
Happy customer
Happy with the product and quality.
Verified purchase: YesCondition: New
by tomoxj6s
Jul 16, 2018
Very good product, my bike is very happy...
Verified purchase: YesCondition: New
by mustangmachanic694206
May 12, 2019
Woke up the engine!
Worth the price bike runs great!
Verified purchase: YesCondition: New
by 6turbo6.ds
Nov 25, 2024
Runs gooder!...
Runs gooder!
Verified purchase: YesCondition: New

Best Selling in Spark Plugs & Glow Plugs

Save on Spark Plugs & Glow Plugs

You may also like