Champion CCH942M Marine Spark Plug for Mercruiser Engines, Copper Core (OEM Equivalent 942M)

The Champion CCH942M is a copper core marine spark plug engineered as a quality OEM replacement for Mercruiser marine engines. Built specifically for the demands of marine use, this spark plug is designed to resist overheating under heavy engine loads, a condition that standard automotive plugs are not built to withstand. The copper core center electrode delivers increased conductivity and precise heat range control, giving the plug good overall wear characteristics and a longer service life.

Corrosion resistance is a priority in the marine environment, and the Champion CCH942M addresses this with a shell construction that resists fouling and helps the plug perform dependably over time. It is built to ISO and SAE standards, giving boat owners a proven, standardized level of performance and fit. At 0.15 pounds, it is a lightweight, easy-to-handle replacement part that keeps routine engine maintenance simple.

This spark plug is categorized for Mercruiser marine engines and is intended as a direct, dependable replacement during scheduled tune-ups or when diagnosing ignition issues such as misfires, hard starting, or rough idle. Its corrosion-resistant shell and copper core construction make it well suited to the moisture and heavy-load conditions typical of marine applications.

Specifications

• Brand: Champion
• Manufacturer Part Number: CCH942M
• OEM Cross Reference Number: 942M
• Core Material: Copper
• Category: Mercruiser Spark Plugs
• UPC: 037551007004
• Unit Count: 1
• Weight: 0.15 pounds

Fitment

• Designed for Mercruiser marine engines

Replaces (OEM)

• 942M

Frequently Asked Questions

What is the Champion CCH942M spark plug used for? The Champion CCH942M is a copper core marine spark plug categorized for Mercruiser marine engines, used as a direct OEM replacement during routine tune-ups or ignition troubleshooting.

Is the CCH942M the same as the Champion 942M spark plug? Yes, the Champion CCH942M carries the OEM cross reference number 942M, so it is the equivalent to that Champion spark plug designation.

What is the electrode made of? The CCH942M has a copper core center electrode, which allows for accurate control of heat range and delivers increased conductivity for good overall wear.

Will this spark plug resist corrosion in a marine environment? Yes, the Champion CCH942M is built with superior corrosion resistance and is designed to resist fouling, which suits the moisture exposure common in marine engine applications.

How much does the Champion CCH942M weigh? This spark plug weighs 0.15 pounds.

Does the CCH942M meet any industry standards? The Champion CCH942M is built to ISO and SAE standards for proven, standardized performance.

Can this spark plug handle heavy engine loads without overheating? Yes, the Champion CCH942M is specifically designed to resist overheating under heavy engine loads, which is a key requirement for marine engine operation.

How many spark plugs come in one purchase? The Champion CCH942M is sold as a single unit, with a unit count of 1.

What engines is the Champion CCH942M spark plug categorized for? The Champion CCH942M is categorized under Mercruiser spark plugs for Mercruiser marine engines.

Why choose a copper core spark plug over other types for a marine engine? A copper core electrode, as used in the Champion CCH942M, provides increased conductivity and more accurate heat range control, which contributes to good overall wear and dependable performance under marine operating conditions.