Quality Power Equipment Two (2) Champion Spark Plugs RC12YC for Most Briggs & Stratton OHV & Selected Kohler CH, CV & SV

What It Is

This is a two-pack of Champion RC12YC spark plugs, designed for replacement in most Briggs & Stratton overhead valve (OHV) engines and selected Kohler CH, CV, and SV series engines. Ideal for lawn mowers, tractors, and small utility engines requiring a standard-gap, copper-core spark plug.

Fitment & Compatibility

• Engine brands/models: Fits most Briggs & Stratton OHV engines (e.g., Intek, Endurance, Professional series) and Kohler CH (Courage), CV (Command), and SV (Sovereign) series. Not for side-valve Briggs engines (e.g., classic flathead models).
• What to check before buying: Verify your engine’s OEM spark plug number. Briggs uses RC12YC as standard; Kohler often specifies RC12YC or cross-references to Champion. Check your owner’s manual or remove the old plug and compare the thread size (14mm), reach (3/4"), and hex size (13/16" or 5/8"). Gap is pre-set at 0.030", but always re-gap with a feeler gauge before installation.
• Aftermarket vs OEM: This is a direct aftermarket replacement. No adapter or modification needed if your engine calls for RC12YC. Avoid using in engines requiring resistor plugs (e.g., some Briggs with electronic ignition—confirm via manual).

Key Things to Know

• Quality: Copper-core, nickel-alloy electrode. Reliable for standard use, but less durable than iridium or platinum plugs (expect 100–150 hours of life).
• Installation: Easy—requires a 5/8" or 13/16" socket and torque wrench (18–22 ft-lbs). Do not overtighten; can crack the plug or strip threads. Apply anti-seize to threads if installing into aluminum heads (common on OHV engines).
• Common gotchas: The plug may come pre-gapped incorrectly. Always check and adjust gap to 0.030". Failing to gap can cause misfire or hard starting. For Kohler engines, verify the plug reach—some CV series use a longer reach (3/4" vs 5/8").
• Storage: Two-pack gives you a spare; store in a dry place. Replace plugs annually or every 100 hours of use.

Should You Buy It

Yes, if you own a Briggs OHV or Kohler CH/CV/SV engine and want a reliable, budget-friendly replacement. It’s a solid choice for routine maintenance—just check your engine’s specs and re-gap before installation. Avoid if your engine requires a different plug type (e.g., resistor or iridium) or if you need longer life for heavy commercial use.