All

Spark Plugs,Champion H8C K Model Spt 1952/78 Cold Plug Replaces Hd 31629-78..Hd #4
eatures of Spark Plugs:

• Patented Resistor: High voltage semi conductor resistor for maximum EMI suppression, proven to be the most durable in the industry. Certified compatibility for use in modern computer controlled, distributorless ignition systems
• ive Rib Near Diamond Hard Insulator: Patented, zirconia toughened alumina insulator for near diamond hardness. ive rib design increases strength 35% while insuring against ignition flashover and securing the plug boot seal
• Rust Resistant Shell Finish: Zinc plated shell resulting in maximum corrosion resistance. Also serves as thread lubricant to aid in prevention of thread seizure
• Triple Seal Assembly: Use of upper and lower metal gasket along with sillment seal provides strongest yet least stressful seal known to the industry. Eliminates spark plug failure due to heat or mechanical induced stress
• Copper Core Center Electrode: Provides maximum heat dissipation and durability
• Precision Rolled Threads: Conforms exactly to I.S.O. and S.A.E. standards as specified by all engine manufacturers, resulting in easy installation and removal

Champion Copper Plus
OE it Spark Plug with .030 Gap
Fits K Model & Sportster 1952/1978 - 900cc Cold Plug 1000cc
Package of 8, Champion # H8C
Replaces HD Code # 4
Replaces HD# 32301-47A & 31629-78

Spark Plugs,Champion N12Yc Sh 1975/Later W/Points Hot Rpls Hd 5A6A Mfg .38
eatures of Spark Plugs:

• Patented Resistor: High voltage semi conductor resistor for maximum EMI suppression, proven to be the most durable in the industry. Certified compatibility for use in modern computer controlled, distributorless ignition systems
• ive Rib Near Diamond Hard Insulator: Patented, zirconia toughened alumina insulator for near diamond hardness. ive rib design increases strength 35% while insuring against ignition flashover and securing the plug boot seal
• Rust Resistant Shell Finish: Zinc plated shell resulting in maximum corrosion resistance. Also serves as thread lubricant to aid in prevention of thread seizure
• Triple Seal Assembly: Use of upper and lower metal gasket along with sillment seal provides strongest yet least stressful seal known to the industry. Eliminates spark plug failure due to heat or mechanical induced stress
• Copper Core Center Electrode: Provides maximum heat dissipation and durability
• Precision Rolled Threads: Conforms exactly to I.S.O. and S.A.E. standards as specified by all engine manufacturers, resulting in easy installation and removal

Champion Copper Plus
OE it Spark Plug with .025 Gap
Fits 1200cc Shovelhead all models 1975/Later with Points Hot Plug
Package of 4, Champion # N12YC
Replaces HD Code # 5A6A
Replaces HD# 32312-78A

Spark Plugs,Champion Rn12Yc Pkg 24 Sh 75/84 W/Elec Ign & Bt Evo 84/99 Hd32311-83 #404S
eatures of Spark Plugs:

• Patented Resistor: High voltage semi conductor resistor for maximum EMI suppression, proven to be the most durable in the industry. Certified compatibility for use in modern computer controlled, distributorless ignition systems
• ive Rib Near Diamond Hard Insulator: Patented, zirconia toughened alumina insulator for near diamond hardness. ive rib design increases strength 35% while insuring against ignition flashover and securing the plug boot seal
• Rust Resistant Shell Finish: Zinc plated shell resulting in maximum corrosion resistance. Also serves as thread lubricant to aid in prevention of thread seizure
• Triple Seal Assembly: Use of upper and lower metal gasket along with sillment seal provides strongest yet least stressful seal known to the industry. Eliminates spark plug failure due to heat or mechanical induced stress
• Copper Core Center Electrode: Provides maximum heat dissipation and durability
• Precision Rolled Threads: Conforms exactly to I.S.O. and S.A.E. standards as specified by all engine manufacturers, resulting in easy installation and removal

Champion Copper Plus
Convenient shop pack of 24 of the most popular selling Champion spark plugs, the RN12YC
Fits all Big Twin Evolution & Shovelhead models 1975/Later with electronic ignitions
Replaces HD Code 5R6A
Replaces HD# 32311-83

Spark Plugs,Champion Rn12Yc Sh 75/84 W/Elec Ign & Bt Evo 84/99 Hot Plug Rpls Hd5R6A 404
eatures of Spark Plugs:

• Patented Resistor: High voltage semi conductor resistor for maximum EMI suppression, proven to be the most durable in the industry. Certified compatibility for use in modern computer controlled, distributorless ignition systems
• ive Rib Near Diamond Hard Insulator: Patented, zirconia toughened alumina insulator for near diamond hardness. ive rib design increases strength 35% while insuring against ignition flashover and securing the plug boot seal
• Rust Resistant Shell Finish: Zinc plated shell resulting in maximum corrosion resistance. Also serves as thread lubricant to aid in prevention of thread seizure
• Triple Seal Assembly: Use of upper and lower metal gasket along with sillment seal provides strongest yet least stressful seal known to the industry. Eliminates spark plug failure due to heat or mechanical induced stress
• Copper Core Center Electrode: Provides maximum heat dissipation and durability
• Precision Rolled Threads: Conforms exactly to I.S.O. and S.A.E. standards as specified by all engine manufacturers, resulting in easy installation and removal

Champion Copper Plus
OE it Spark Plug with .040 Gap
Fits 1200cc & 1340cc Shovelhead all models Late 1977/1981, 1340cc Evolution 1984/Later with Electronic Ignition Hot Plug
Package of 4, Champion # RN12YC
Replaces HD Code # 5R6A
Replaces HD# 32311-83

V-Twin Manufacturing Champion H10C Plugs, 1972-78 XL XL - Pack

These Champion copper plus spark plugs are one heat range ho tter than stock replacement plugs. The spark plug gap is .03 0".

XL 1957-1978
XL 1957-1971

V-Twin Manufacturing Champion H8C Spark Plugs, 1972-78 XL XL - Pack

Copper plus style Champion spark plugs have a gap of .030".

XL 1972-1978

V-Twin Manufacturing Champion Spark Plug, 24 PK, RN12YC - Pack

Spark plug shop pack includes 24 copper plus type spark plugs. Spark plug gap measures .040.

FXST 1984-1998
FLST 1986-1998
FX 1975-1981
FL 1975-1981
FXS 1975-1980
FLT 1984-1998
FXR 1984-1994
FXD 1991-1994

V-Twin Manufacturing Champion Spark Plugs, 1200 V2 1988-up XL - Pack

Copper plus style Champion spark plugs have a gap of .040".

FXST 1999-UP
FLST 1999-UP
FLT 1999-UP
FXD 1999-UP
XL 1999-UP

V-Twin Manufacturing Champion Spark Plugs, 1979-85 XL XL - Pack

Copper plus style Champion spark plugs have a gap of .040".

XL 1979-1985