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CHAMPION RC12YX spark plug

RC12YX CHAMPION – Properties, Compatibility and Alternatives

The CHAMPION RC12YX represents a reliable ignition solution designed for small engines and various automotive applications. This Spark plug CHAMPION RC12YX delivers consistent performance through its copper core construction and standard electrode configuration. The component serves as a critical element in the ignition system, providing the electrical spark necessary for fuel combustion in internal combustion engines.

Advantages of the RC12YX CHAMPION

  • Copper core construction ensures excellent heat dissipation and electrical conductivity for reliable ignition performance
  • Standard electrode design provides consistent spark formation across various operating conditions
  • The Spark plug RC12YX CHAMPION features a durable construction that withstands high-temperature environments
  • Resistor-type configuration reduces electromagnetic interference in electronic systems
  • Wide heat range compatibility makes the RC12YX CHAMPION spark plug suitable for different engine types
  • Cost-effective replacement option that maintains OEM performance standards

Technical Data

Feature Value
Manufacturer Champion
Model CHAMPION RC12YX
Type Resistor spark plug
Thread size 14mm
Thread length 19mm (3/4")
Wrench size 20.6mm (13/16")
Heat range 12
Electrode gap 0.028-0.031" (0.7-0.8mm)
Resistance 5000-10000 ohms
Application Small engines, lawn equipment, marine engines

Compatibility and Areas of Application

The CHAMPION RC12YX finds primary application in small engine systems, particularly those requiring moderate heat range characteristics. This CHAMPION RC12YX spark plug works effectively in air-cooled engines commonly found in outdoor power equipment, marine applications, and certain automotive systems. The component's design specifications make it suitable for engines operating under standard to moderate load conditions.

  • Lawn mowers and garden equipment with single-cylinder engines
  • Outboard marine engines in the lower horsepower range
  • Go-karts and recreational vehicle applications
  • Generators and portable power equipment
  • Some vintage automotive applications requiring this specific heat range

Suitable for the following vehicle models and equivalents

It is important to mention that alternative products can be found on AUTODOC. Currently, there are over 7000 items available in the spark plugs category.

Car maker Car Model
Honda Small engine equipment (GX series)
Briggs & Stratton Various small engine models
Kohler Single-cylinder engine applications
Tecumseh Lawn equipment engines

Application Notes and Important Questions

  • What is the correct gap setting for optimal performance? The RC12YX CHAMPION requires precise gap adjustment between 0.028-0.031 inches for proper ignition timing
  • How often should replacement occur in typical applications? Standard Spark plug CHAMPION RC12YX maintenance intervals suggest replacement every 100 operating hours or annually for seasonal equipment
  • Can this component be used in high-performance applications? The moderate heat range makes it suitable for standard operating conditions rather than high-stress environments
  • What are the signs indicating replacement necessity? Poor starting, rough idling, or reduced engine performance typically indicate spark plug degradation

Conclusion

The CHAMPION RC12YX provides dependable ignition performance for small engine applications requiring standard heat range characteristics. Its copper core construction and resistor design ensure reliable operation across various operating conditions. This RC12YX CHAMPION represents an excellent choice for maintaining optimal engine performance in lawn equipment, marine engines, and similar applications.

500 items
  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: C9YC
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Projection [mm]: 1,5
  • Item number: OE003/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874505100
  • Condition: New
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In stock
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£3.29
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£13.16 / Price per 4 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with taper seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 11,2
  • Spark Position [mm]: 5
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RV17YC
  • Tightening torque from [Nm]: 15
  • Tightening torque to [Nm]: 20
  • Packaging length [cm]: 9,5
  • Packaging width [cm]: 2,4
  • Packaging height [cm]: 2,2
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Projection [mm]: 3
  • Item number: CCH25
  • Manufacturer: CHAMPION
  • EAN number: 37551000265
  • Condition: New
Details
In stock
-40%
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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 16 mm
  • Quality / Grade: Cu-core GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 2,4
  • Thread Size: M10x1.0
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: P-RG4HCC
  • Tightening torque from [Nm]: 10
  • Tightening torque to [Nm]: 15
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 8
  • Projection [mm]: 0,8
  • Item number: P-RG4HCC/T10
  • Manufacturer: CHAMPION
  • EAN number: 4044197492398
  • Condition: New
Details
In stock
-40%
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£3.29
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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Nickel Middle Electrode
  • Electrode Gap [mm]: 0,5
  • Spanner Size: 19 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 3,4
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Technical Information Number: CJ7Y
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 16,72
  • Packaging width [cm]: 11,74
  • Packaging height [cm]: 10,7
  • Projection [mm]: 1,5
  • Item number: CCH853S
  • Manufacturer: CHAMPION
  • EAN number: 37551121410
  • Condition: New
Details
In stock
-42%
compared to RRP £5.68

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Product version: New
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Nickel Middle Electrode
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Supplementary Info: Screw on
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 1,5
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: J17LM
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Item number: J17LM/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874508446
  • Condition: New
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In stock
-38%
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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with taper seat, Copper Centre Electrode
  • Electrode Gap [mm]: 1
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 17,5
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RS12YC
  • Tightening torque from [Nm]: 15
  • Tightening torque to [Nm]: 20
  • Packaging length [cm]: 9,5
  • Packaging width [cm]: 2,4
  • Packaging height [cm]: 2,2
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Projection [mm]: 1,5
  • Item number: CCH401
  • Manufacturer: CHAMPION
  • EAN number: 37551000401
  • Condition: New
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Details
In stock
-41%
compared to RRP £5.60

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Product version: New
  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,6
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 1,5
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RN4C
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Item number: OE098/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874502697
  • Condition: New
Details
In stock
-37%
compared to RRP £5.28

£3.29
Price per item
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CHAMPION J19LM/W24 Spark plug M14x1.25, Spanner Size: 21
Article number: J19LM/W24
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  • Spark Plug: 1 - Earthed Electrode, with gasket seat
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 21
  • Thread Length [mm]: 9,5
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Item number: J19LM/W24
  • Manufacturer: CHAMPION
  • EAN number: 37551660827
  • Condition: New
Details
In stock
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Product version: Old
  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 18 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 2,4
  • Thread Size: M12x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: P-RA7HC
  • Tightening torque from [Nm]: 20
  • Tightening torque to [Nm]: 25
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 8
  • Projection [mm]: 0,8
  • Item number: P-RA7HC/T10
  • Manufacturer: CHAMPION
  • EAN number: 4044197440559
  • Condition: New
Details
In stock
-33%
compared to RRP £5.39

£3.59
Price per item
£7.18 / Price per 2 items

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  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Supplementary Info: Screw on
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: L82YC
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,85
  • Packaging width [cm]: 2,6
  • Packaging height [cm]: 2,35
  • Projection [mm]: 1,5
  • Item number: OE038/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874504516
  • Condition: New
Show OEM numbers of the product
Details
In stock
-34%
compared to RRP £5.47

£3.59
Price per item
£14.36 / Price per 4 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 2,4
  • Thread Size: M10x1.0
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: P-RZ7HC
  • Tightening torque from [Nm]: 10
  • Tightening torque to [Nm]: 15
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 7,5
  • Projection [mm]: 0,8
  • Item number: P-RZ7HC/T10
  • Manufacturer: CHAMPION
  • EAN number: 4044197463374
  • Condition: New
Show OEM numbers of the product
Details
In stock (Item(s) left: 8)
-36%
compared to RRP £5.62

£3.59
Price per item
£7.18 / Price per 2 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 1,5
  • Thread Size: M10x1.0
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: P-RG7C
  • Tightening torque from [Nm]: 10
  • Tightening torque to [Nm]: 15
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Item number: P-RG7C/T10
  • Manufacturer: CHAMPION
  • EAN number: 4044197440573
  • Condition: New
Details
In stock
-33%
compared to RRP £5.36

£3.59
Price per item
£7.18 / Price per 2 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 16 mm
  • Quality / Grade: Cu-core GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 2,4
  • Thread Size: M10x1.0
  • Connector type: M4
  • Packing Type: Box
  • Technical Information Number: P-RG6HCC
  • Tightening torque from [Nm]: 10
  • Tightening torque to [Nm]: 15
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 8
  • Projection [mm]: 0,8
  • Item number: P-RG6HCC/T10
  • Manufacturer: CHAMPION
  • EAN number: 4044197492510
  • Condition: New
Show OEM numbers of the product
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In stock
-36%
compared to RRP £5.65

£3.59
Price per item
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Spark plugs RL86C/W100 CHAMPION Spark plug RC12YX CHAMPION - RL86C/W100
CHAMPION RL86C/W100 Spark plug RL86C, M14x1.25, Spanner Size: 21 mm, Nickel GE
Article number: RL86C/W100
Submit a review
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,5
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 1,5
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Manufacturer Restriction: WACKER NEUSON
  • Technical Information Number: RL86C
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 34,5
  • Packaging width [cm]: 22
  • Packaging height [cm]: 10
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Item number: RL86C/W100
  • Manufacturer: CHAMPION
  • EAN number: 4044197743070
  • Condition: New
Details
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£3.59
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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,9
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 19
  • Spark Position [mm]: 5
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: N12YC
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,85
  • Packaging width [cm]: 2,6
  • Packaging height [cm]: 2,35
  • Projection [mm]: 3
  • Item number: OE015/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874507609
  • Condition: New
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Details
In stock
-30%
compared to RRP £5.15

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£14.36 / Price per 4 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with taper seat, Copper Centre Electrode
  • Electrode Gap [mm]: 1
  • Spanner Size: 16 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 11,2
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RV15YC4
  • Tightening torque from [Nm]: 15
  • Tightening torque to [Nm]: 20
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Projection [mm]: 1,5
  • Item number: RV15YC4/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874508866
  • Condition: New
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In stock
-39%
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  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,8
  • Spanner Size: 16 mm
  • Quality / Grade: Ni125 GE
  • Supplementary Info: Screw on
  • Thread Length [mm]: 19
  • Spark Position [mm]: 2,4
  • Thread Size: M10x1.0
  • Connector type: SAE
  • Packing Type: Box
  • Technical Information Number: RG4HCX
  • Tightening torque from [Nm]: 10
  • Tightening torque to [Nm]: 15
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Resistor from [kOhm]: 3
  • Resistor to [kOhm]: 7,5
  • Projection [mm]: 0,8
  • Item number: OE241
  • Manufacturer: CHAMPION
  • EAN number: 4044197800414
  • Condition: New
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In stock (Item(s) left: 10)
-74%
compared to RRP £13.87

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Price per item
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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Copper Centre Electrode
  • Electrode Gap [mm]: 0,6
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 12,7
  • Spark Position [mm]: 1,5
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: L78C
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Item number: L78C/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874503502
  • Condition: New
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In stock
-28%
compared to RRP £4.99

£3.59
Price per item
£14.36 / Price per 4 items

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  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Nickel Middle Electrode
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 21 mm
  • Quality / Grade: Nickel GE
  • Supplementary Info: Screw on
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 1,5
  • Thread Size: M14x1.25
  • Connector type: M4 / SAE
  • Packing Type: Box
  • Technical Information Number: J19LM
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 8,65
  • Packaging width [cm]: 2,45
  • Packaging height [cm]: 2,45
  • Item number: J19LM/T10
  • Manufacturer: CHAMPION
  • EAN number: 5010874509498
  • Condition: New
Details
In stock
-25%
compared to RRP £5.35

£3.99
Price per item
£15.96 / Price per 4 items

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  • Product line: Powersport
  • Spark Plug: 1 - Earthed Electrode, with gasket seat, Nickel Middle Electrode
  • Electrode Gap [mm]: 0,7
  • Spanner Size: 19 mm
  • Quality / Grade: Nickel GE
  • Thread Length [mm]: 9,5
  • Spark Position [mm]: 3
  • Thread Size: M14x1.25
  • Connector type: SAE
  • Technical Information Number: RCJ8Y
  • Tightening torque from [Nm]: 25
  • Tightening torque to [Nm]: 30
  • Packaging length [cm]: 16,72
  • Packaging width [cm]: 11,74
  • Packaging height [cm]: 10,7
  • Resistor from [kOhm]: 6
  • Resistor to [kOhm]: 15
  • Projection [mm]: 1,5
  • Item number: CCH863S
  • Manufacturer: CHAMPION
  • EAN number: 37551160990
  • Condition: New
Details
In stock
-34%
compared to RRP £6.06

£3.99
Price per item
£15.96 / Price per 4 items

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