Champion J6C Marine Spark Plug CCH823 - Copper Core, Mercury Outboard Replacement, Champion 823

The Champion J6C Marine Spark Plug (CCH823), also identified as Champion Spark Plug # 823, is a quality OEM-type replacement spark plug built for marine engines, including Mercury outboard applications. It features a copper core electrode that improves conductivity and heat control, delivering good overall wear characteristics across normal operating conditions. The design is engineered to resist overheating under the heavy, sustained loads typical of marine engine use, where plugs work harder than in typical automotive service.

Beyond its copper core construction, the Champion J6C resists fouling and offers superior corrosion resistance, both important in the humid, saltwater-exposed environment marine engines operate in. Champion builds this plug to dependable, proven performance standards, making it a straightforward drop-in replacement for engines that call for the J6C or Champion 823 spark plug. The 14mm x 1.25mm thread size and metal shell construction match standard marine spark plug ports, and the plug ships ready to install with no additional preparation required.

This spark plug is sold and shipped as a single unit, so buyers running multi-cylinder engines should order the correct quantity to complete a full spark plug replacement.

Specifications

• Brand: Champion
• Manufacturer Part Number: CCH823
• Champion Spark Plug Number: 823
• Product Type: Marine Spark Plug
• Core Material: Copper
• Shell Material: Metal
• Thread Size: 14mm x 1.25mm
• UPC: 037551000029
• Unit Count: 1 spark plug
• Weight: 0.15 pounds
• Key Features: Resists fouling, superior corrosion resistance

Fitment

• Mercury outboard engines requiring the Champion J6C / Champion 823 spark plug

Replaces (OEM)

• 1214123
• 1340167716
• 502895
• 79001652
• 9B0444

Frequently Asked Questions

What is the Champion J6C spark plug also known as? It is also identified as Champion Spark Plug # 823, and the part is listed under manufacturer part number CCH823.

Is the Champion J6C spark plug a genuine OEM part? Yes, the Champion J6C (CCH823) is a genuine Champion marine spark plug, sold as a quality OEM replacement rather than a generic aftermarket copy.

What is the thread size on this spark plug? The Champion J6C spark plug has a 14mm x 1.25mm thread size.

What material is the electrode made from? The Champion J6C features a copper core center electrode, which improves conductivity and heat control for good overall wear.

Will this spark plug fit Mercury outboard engines? The Champion J6C (CCH823) is offered as a spark plug for Mercury outboard engines requiring the Champion 823 / J6C plug.

What OEM part numbers does the CCH823 cross-reference to? The Champion J6C spark plug cross-references to OEM part numbers 1214123, 1340167716, 502895, 79001652, and 9B0444.

How many spark plugs come in one order? Each order of the Champion J6C (CCH823) spark plug includes one spark plug; multi-cylinder engines will need one plug per cylinder.

Does this spark plug resist corrosion? Yes, the Champion J6C spark plug is built with superior corrosion resistance, which suits the saltwater and humid conditions marine engines face.

Does the Champion J6C help prevent fouling? Yes, fouling resistance is a designed feature of the Champion J6C (Champion 823) spark plug.

How much does this spark plug weigh? The Champion J6C spark plug (CCH823) weighs 0.15 pounds.

Is this spark plug designed for marine use specifically? Yes, the Champion J6C is a marine spark plug engineered to resist overheating under the heavy, sustained loads typical of marine engine operation.

What shell material does the Champion J6C use? The Champion J6C spark plug (CCH823) has a metal shell.