Champion 810 Spark Plug

Brand Champion 810
Ground Electrode Core Material Nickel
Electrical Terminal Type Removable nut
Center Electrode Tip Material Nickel
Pre-Gap Size 0.025
Pre-Gap Size 0.64
Ground Electrode Quantity 1
Insulator Height 0.03
Manufacturer Heat Range 8
Seat Type Flat
Reach 0.75
Thread Diameter 0.472
Thread Diameter 12.000
Resistor Type Yes
Hex Type Hex
Center Electrode Diameter (Inch) 0.1
Classification Champion copper plus small engine
Ground Electrode Material Nickel copper alloy
Hex Size 0.625
Hex Size 15.880
Installed Height (Inch) 1.99
Insulator Projection (Inch) 0.03
Plug Type Ra8hc
Taper Diameter (Inch) 0.2
Fits —

Copper core electrode. Improves conductivity and heat control for steady wear.

Resistor type. Helps reduce electrical noise in ignition systems.

Champion Copper Plus. Dependable performance from a trusted spark plug line.

Cross-references Anchor 2887, Anchor 3108 and Anchor 3123 for the same application. See all 75.

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Champion Copper Plus 810 Spark Plug

Champion Copper Plus 810 is a small engine spark plug built for dependable ignition performance and steady heat control. Its copper core electrode helps improve conductivity, while the nickel center and ground electrode materials support consistent wear in secondary ignition service.

Key Features

  • Copper core electrode for improved conductivity and heat management
  • Nickel center electrode tip and nickel ground electrode core material
  • Resistor design for reduced electrical noise
  • Flat seat design with a 0.75 in. reach
  • Pre-gapped at 0.025 in. for common small engine applications
  • 12 mm thread diameter, 15.88 mm hex size, and removable nut terminal
  • Champion Copper Plus small engine classification

Product Details

The Champion Copper Plus line focuses on practical ignition performance with a copper core that helps transfer heat efficiently and maintain stable firing characteristics. Part number 810 is identified as RA8HC and uses a flat seat, resistor construction, and nickel-based electrode materials for reliable service in the ignition system. This spark plug is listed with interchange references including Autolite 4164 and Bosch YR6LDE for the same application. For buyers searching Champion 810 spark plug, Champion Copper Plus 810, or RA8HC replacement spark plug, this part provides the core specifications needed for small engine maintenance. It is also a relevant search match for vehicle and equipment owners looking for Champion 810 in applications such as Honda Civic service references where this plug number is used in cross-reference data.

Common Uses

  • Hard starting caused by worn or fouled spark plugs
  • Misfire from weak or inconsistent spark output
  • Rough idle related to ignition wear
  • Reduced combustion efficiency from excessive plug gap wear
  • Electrical interference concerns in resistor plug applications

Installation Notes

Verify thread diameter, reach, seat type, and heat range before installation. Confirm the plug gap matches the engine specification, even though this plug is pre-gapped at 0.025 in. Use the removable nut terminal only if your ignition lead requires that style connection. Always compare the old plug to the new Champion 810 and check the engine manufacturer’s service data for the correct application.

Quality Assurance

Champion designs the Copper Plus line around dependable ignition service with copper-core conductivity and controlled heat transfer. Part number 810 is built to the listed specifications for consistent fit and function in the intended small engine and cross-reference applications.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 75 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2887Anchor — 3108Anchor — 3123Anchor — 3481AP Exhaust — 7512Atlantic Automotive Engineering — 3954Atlantic Automotive Engineering — 5531Autolite — 4164BENDIX PREMIUM BRAKE SHOES — 742BENDIX PREMIUM BRAKE SHOES — 882Bosch — YR6LDECarlson — 7839Carlson — 7912Champion Spark Plug — 842CSF — 3932CSF — 3964DENSO Auto Parts — 4085DENSO Auto Parts — 4090DENSO Auto Parts — 4091DENSO Auto Parts — 4125Karlyn — 51296R126R12G1413211251322425132253387780833883323A8A8YA8YCA10D6EAD6RTC9D6TC9D7EAD7ESD7EVD7RTCD7TCD7TC9DCPR6EDCPR7EDP6EA9DP7EA9DP7EV9DPR5EA9DPR6EA9DPR6EB9DPR7EA9DPR7EV9DR7EADR7ESR8R10RA8RA8HCRA8YRA8YCS123XLX16EPRU9X20EPRU9X20ESUX20EUX22EPRGLX22EPRZU9X22EPU9X22EPZU9X22ESRUX22ESRU9X22ESUX22ESZUX22EUXR7LDCXU20EPRU