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Spark Plugs,Champion Rn12Yc Pkg 24 Sh 75/84 W/Elec Ign & BT Evo 84/99 Hd32311-83 #404S
Mid-USA
$88.45
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Spark Plugs,Champion N12Yc Sh 1975/Later W/Points Hot Rpls Hd 5A6A Mfg .38
Mid-USA
$16.50
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Spark Plugs,Champion Rn12Yc Sh 75/84 W/Elec Ign & BT Evo 84/99 Hot Plug Rpls Hd5R6A 404
Mid-USA
$15.29
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Spark Plugs,Champion H8C K Model Spt 1952/78 Cold Plug Replaces Hd 31629-78..Hd #4
Mid-USA
$31.91
Spark Plugs,Champion Rn12Yc Pkg 24 Sh 75/84 W/Elec Ign & BT Evo 84/99 Hd32311-83 #404S Harley Mid-USA - K and G Cycles
Mid-USA

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

MID-18032

$88.45

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Shipping calculated at checkout.
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 N12Yc Sh 1975/Later W/Points Hot Rpls Hd 5A6A Mfg .38 Harley Mid-USA - K and G Cycles
Mid-USA

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

MID-18035

$16.50

In Stock

Save $-16.50
/
Shipping calculated at checkout.
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 Sh 75/84 W/Elec Ign & BT Evo 84/99 Hot Plug Rpls Hd5R6A 404 Harley Mid-USA - K and G Cycles
Mid-USA

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

MID-18033

$15.29

In Stock

Save $-15.29
/
Shipping calculated at checkout.
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
Spark Plugs,Champion H8C K Model Spt 1952/78 Cold Plug Replaces Hd 31629-78..Hd #4 Harley Mid-USA - K and G Cycles
Mid-USA

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

MID-18039

$31.91

In Stock

Save $-31.91
/
Shipping calculated at checkout.
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