Champion QL77CC Marine Spark Plug (Champion 941M) - Copper Core Electrode

The Champion QL77CC is a marine-grade spark plug built as a quality OEM replacement for outboard and inboard marine engines. It uses a copper core center electrode that boosts conductivity and heat control, helping the plug resist fouling and wear over extended use. The plug is engineered to resist overheating under the sustained heavy loads typical of marine engines, and its construction provides superior corrosion resistance for the wet, high-vibration environment of a boat engine compartment.

Also identified by Champion as plug number 941M, the QL77CC delivers dependable, proven performance for boat owners replacing a worn or fouled plug. The copper core design supports consistent conductivity and heat transfer over the life of the plug, making it a straightforward drop-in replacement where a QL77CC or 941M Champion plug is specified.

Specifications

• Brand: Champion
• Manufacturer Part Number: QL77CC
• Champion Plug Designation: 941M
• Center Electrode Core Material: Copper
• UPC: 037551005314
• Unit Count: 1 spark plug
• Weight: 0.15 pounds
• Application: Marine engines

Fitment

Designed as an OEM-type replacement spark plug for marine engines specifying the Champion QL77CC or 941M plug.

Frequently Asked Questions

What is the Champion QL77CC spark plug used for? The Champion QL77CC is a marine spark plug used as an OEM-type replacement in marine engines, providing dependable ignition performance under heavy engine loads.

Is the QL77CC the same as the Champion 941M plug? Yes, Champion identifies this same spark plug under both the QL77CC part number and the 941M designation, so either number refers to the identical plug.

What material is the center electrode made of? The center electrode core in the Champion QL77CC (941M) is copper, which increases conductivity and heat control for good overall wear.

Does the Champion QL77CC resist fouling? Yes, the copper core design of the Champion QL77CC spark plug is built to resist fouling while maintaining dependable, proven performance.

How well does this plug hold up to corrosion? The Champion QL77CC (941M) offers superior corrosion resistance, which suits the wet operating environment of marine engines.

Is the Champion QL77CC designed specifically for marine use? Yes, the QL77CC is a marine spark plug engineered to resist overheating under the sustained heavy loads common in marine engine operation.

How many spark plugs come in this listing? This listing is for one Champion QL77CC (941M) spark plug.

How much does the Champion QL77CC spark plug weigh? The Champion QL77CC spark plug weighs 0.15 pounds.

Is the Champion QL77CC a genuine Champion part or an aftermarket copy? The QL77CC is a genuine Champion-branded spark plug, sold under Champion's own 941M designation as a quality OEM replacement.

What is the UPC for the Champion QL77CC spark plug? The UPC for the Champion QL77CC (941M) spark plug is 037551005314.