NGK Spark Plug for 250cc and more - Iridium

This is the highest performance NGK Iridium spark plug for your 250cc engine.

After rejetting your carburetor, you'll want to use these for best spark, performance, and spark plug life!

NGK Iridium spark plugs are pre-gapped. The manufacturer does not recommend re-gapping them as you will likely break the electrode.

This plug works great with our high powered coil or CDI/Coil combo products!

From NGK:

NGK's IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast.

• Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark
• Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines
• Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
• Corrugated Ribs Prevent Flashover
• Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
• Copper Core Aids in Heat Removal
• Triple Seals Prevent Leakage

Plug Specifications

• Thread Size: 12mm
• Hex Size: 11/16" (17.5mm)
• Reach: 19mm (3/4")
• Seat Type: Gasket
• Gap: .036" (0.9mm)
• Heat Range: 8
• Terminal Type: Threaded Stud
• Resistor: Yes
• Thread Pitch: 1.25mm

This performance product can replace these vehicle-specific part numbers. Will work with hundreds of other models. Part Numbers are supplied for reference only and subject to change.

Baja Reaction 250 - BR250-350
Baja Dune 250 - DN250-475
Joyner Sand Viper / Spider 250cc - 172mm-022400
Joyner Dirt Devil 2004 - SZ02080000
Hammerhead (all 250cc models)  - 172mm-022400
Kinroad XT250GK (all 250 models) - 98056-SCC0-1000
Roketa GK-06 - GK-06-250-3-27-5
Roketa GK-13 - GK-13-250-03-24-07
Roketa GK-19 - GK-19-250-03-33-06
SUNL SLGK-250-2A - XF172MM-1001307
Generic OEM Part # YYSLL2500312

This product also works with the following non-buggy vehicles (and many more!)

Bimota:  DB2,  YB-5
Cagiva:  Elefant 900
DAZON:  Raider Max 250R  
DIAMO:  Avalanche, Avalanche 4x4   
Ducati:  750 SS  
Honda:  CB450SC Nighthawk, CB550SC Nighthawk, CB650SC, CB700SC, CB750, CBR600F, CM450A, CM450E, CMX450C, CRF230F, CRF230L, CRF230M, CX500TC, CX650C, CX650T, GB500, GL1100, GL1100A, GL1100I, GL1200, GL1200A, GL1200I, GL1200L, GL1200SEi, GL650, GL650I, NT650 Hawk GT, NX650, SR600R, VF1000F, VF1100C, VF1100S, VF500C, VF500F, VF700C, VF700F, VF700S, VF750C, VF750CD, VF750F, VF750S, VT500C, VT500FT, VT600C Shadow, VT600CD Shadow VLX Deluxe, VT600CD Shadow, VT600CD2 Shadow,  VT700C,  VT750C Shadow, VT750CD Shadow,  VT750CD2 Shadow,  VT750DC Shadow Spirit,  VTR250,  XL350R, XL600R,  XL600V,  XR350R, XR500R,  XR600R, XR650L, TRX250, TRX250 TE, TRX250 TM, TRX250 TX, TRX250EX, TRX250X, TRX300, TRX300FW
Kawasaki: KL600-B, KL650, KL650-A, KL650-B Tengai, KL650R-A, KLR650, KLR650-A, KLX650-A, KLX650-C, KLX650-D, KLX650R, VN1500-A Vulcan, VN1500-B Vulcan, ZG1200-A Voyager XII,  ZG1200-B Voyager XII, KLF400, KSF250, KVF360, KVF400-A, KVF400-B, KVF400-C, KVF400-D 
KTM:  660 Rally  
Lifan:  LF125 GY, LF125 GY-3A, LF125 GY-5, LF150 GY, LF150 GY-3A, LF150 GY-5, LF200, LF200 GY-2, LF200 GY-5, LF200-D 
MIDWEST:  UTX700, UTX700 SE, WRX600i, WRX700i 
Motofino:  MF150 PY, MF150-2, MF150-6B, MF150-6C, MF200 PY, MZ, Skorpion Sport, Skorpion Tour, MF250ST 
Suzuki:  Boulevard S50, Boulevard S83, GS500, GS500E, GS500F, LS650 Savage, S40 Boulevard, S50 Intruder, S83 Intruder, VS1400 Intruder, VS1400GL Intruder, VS1400GLP Intruder, VS700GL, VS750GL, VS800GL Intruder, VX800  
Triumph: Adventurer Cruiser, America, Bonneville, Bonneville SE, Bonneville T100, Daytona, Daytona 1200, Daytona 900, Daytona 955i, Legend TT, Rocket III, Scrambler, Speed Triple, Speed Triple Café, Speedmaster, Speedster, Sprint 900, Sprint Executive, Sprint RS, Sprint Sports, Sprint ST, Super III Supersport, T509 Speed Triple, Thruxton 900, Thunderbird, Thunderbird Cruiser, Thunderbird Sport, Tiger, Tiger 900, Tiger 900 Dual Purpose, Trident 750, Trident 900 Standard 
UNISON:  Mobility 650, UTV 500, UTV 600,  UTV 700
United Motors:  DSF 200, DTF 200,  SMF 200  
Yamaha:  FJ 1100, FJ 1200, FZ 700, FZ 750, FZR 1000, FZR 750R, FZX 700, FZX 750 Fazer, GTS 1000, SRX 600, TT600 S, VMX 1200 V-Max, VX19CT Stratoliner, XT 600, XT 600 E, XV1900 Roadliner, XV19C Raider, XV19C Raider S, XVZ 1300 CT Royal Star Tour Deluxe, XVZ 1300 Royal Star, XVZ 1300 Venture Royale, XVZ12, XVZ1300 TF Royal Star Venture, XVZ1300 TFM Royal Star Midnight Venture, XVZ13A Royal Star, XVZ13D Royal Venture, XVZ13TFW Royal Star Venture, XC 180 Riva,  XC 200 Riva, YFM600FWA, YFM660F,  YFM660L,  YFM660R,  YXR660