Description
The Champion Spark Plug 852-1 (RCJ6Y) is a dependable OE-type replacement spark plug designed for reliable ignition performance and extended service life. Featuring a copper core center electrode, it delivers improved conductivity and precise heat control, helping reduce fouling and maintain consistent engine operation.
This model includes a built-in resistor to help suppress electrical interference, making it ideal for equipment with electronic ignition systems. Its flat seat design with a crush washer ensures a secure fit, while the J-gap ground electrode supports dependable spark performance in demanding small engine environments.
Features
- OE-type replacement spark plug
- Champion Copper Plus Small Engine classification
- Dependable performance and durability
- Copper core center electrode for improved conductivity and heat control
- Resists fouling
- Built-in resistor to reduce electrical interference
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
Specifications
- Plug type: RCJ6Y
- Part description: Spark Plug
- Grade type: Standard Replacement
- Center electrode tip material: Copper
- Center electrode design: Standard
- Ground electrode quantity: 1
- Ground electrode tip material: Nickel
- Ground electrode tip design: J Gap
- Ground electrode core material: Nickel
- Pre-gap size: 0.025 in. / 0.64 mm
- Hex size: 0.748 in. / 19.000 mm
- Insulator height: 0.06 in.
- Manufacturer heat range: 6
- Seat type: Flat
- Reach: 0.375 in.
- Thread diameter: 0.551 in. / 14.000 mm
- Resistor type: Yes
- Electrical terminal type: Non-Removable Nut
- Hex type: Hex
- Washer included: Yes
- Washer type: Crush
- Indexed: No
- Subject to Prop 65: No
Fitment
This spark plug is commonly used across a wide range of small engine equipment, including chainsaws, trimmers, blowers, and other outdoor power equipment that specify RCJ6Y or equivalent.
(Always verify exact plug type with your engine manufacturer before installation.)
