Established 2003

Specializing In Sportsters

FULL REBUILDS - HARDENED VALVE SEATS - CYLINDER BORING - HELIARC/CASE REPAIR - MACHINE SHOP
CASE BEARING RACE LINE LAPPING - ROD RACES LAPPED TO SIZE - MAGNETO TESTING AND REPAIR

Spark Plug Charts

Quick Reference for Most Engines

This information has been verified form several sources, however, it is always best to consult the Harley service manual and the spark plug manufacturer data.

Evo Motors
  TC88/96 Evo 80 CID Evo XL
H-D Standard 6R12 5R6A 6R12
H-D Gold 6R12G 5R6AG 6R12G
H-D Platinum 6R12PP 5R6APP 6R12PP
Champion RA8HC RN12YC RA8HC
Autolite 4164 4265 4164
Autolite Platinum AP4164DP2 AP4265DP2 AP4164DP2
Accel 2418
Y2418P		 2410A 2418
Y2418P
Splitfire SF416D SF6D SF416D
Screamin Eagle
S=Hot
P=Cold 		EX12S
EX12P 		EVS13S
EVS13P		 EX12S
EX12P
AC Delco   44NS  
NGK DCPR7E BPR5ES-11  
NGK Platinum   BPR5EVX-11  
Bosch   WR8D
WR8DC
WR8DP		  
Denso Iridium IXU22 IW16  
Real Harleys
  Iron XL
57-71
900cc		 Iron XL
72-79
1000cc		 Iron XL
80-85
1000cc		 Pan/Shovel
48-74		 Shovelhead
75-81		 Shovelhead
82-84
H-D Standard 2, 3, 4, 5 4, 5 4R5   5R6A 5RL
H-D Gold 4R5G 4R5G 4R5G   5R6AG 5R6AG
H-D Platinum XL10S XL10S XL10S   5R6APP 5R6APP
Champion H8
RL82YC		 H8C
RL82YC		 RL82YC J12YC RN12YC RN13LYC
Autolite   4123 4123   4265 2585
Autolite Platinum         AP4265DP2  
Accel 2402 2402 2413 2401 2410A 2417
Splitfire   SF412C SF412C   SF6D SF426E
TP6E
Screamin Eagle
S=Hot
P=Cold		   XL10S XL10S   EVS13S
EVS13P		 EVS13S
EVS13P
AC Delco 42F/42-6FS 42F/42-6FS 42F/42-6FS   44NS/44XLS 44NS/44XLS
NGK B-6L B6HS     BPR5ES-11 ZGR5C-11
NGK Platinum         BPR5EVX-11  
Bosch            
Denso Iridium   IWF22        

SERVICES

Buy and Sell Ironheads - Buy and Sell Ironhead Parts - Rebuild Ironheads - Specialty Work - Wheel Building and Lacing - Wiring - Engine Rebuilding - Transmission Rebuilding - Flywheel Trueing - Line Lap Case Bearing Races - Lap Rod Races - Valve Jobs - Install Hardened Seats - Cylinder Boring - Heliarc Welding - Lathe and Mill Work - Powder Coating

All work is performed in house in a fully equipped shop.

GET IN TOUCH

IronHeadCycle LLC
North Texas
United States of America
Phone: 940-297-5009
Send a Message to IronHeadCycle

DISTRIBUTOR FOR:

Eastern

V-Twin

Colony