Champion RN11YC4 Copper Plus Marine Spark Plug for Honda BF5 and BF50 5HP Outboards

The Champion RN11YC4 Copper Plus Marine Spark Plug is a copper-core replacement spark plug built for dependable ignition performance in marine engines. Champion Spark Plug #322 uses a copper core center electrode that allows for accurate control of heat range, giving the plug longer service life and steady conductivity under load. The shell carries Champion's patented TinTac and ULTRASEAL coating for maximum corrosion resistance, an important feature in the salt and moisture exposure common to marine environments. A patented SAC-9 semiconductor is built into the plug for maximum EMI and RFI suppression, helping reduce electrical interference with onboard electronics. The RN11YC4 is built to ISO and SAE standards for proven, consistent performance.

This spark plug fits Honda BF5 OHV 4-Stroke 5HP and Honda BF50 OHV 4-Stroke 5HP outboard engines. It is sold as a single spark plug with a 14mm x 1.25mm thread and a copper core electrode construction.

Specifications

• Brand: Champion
• Manufacturer Part Number: CCH322
• Champion Spark Plug Number: 322
• Product MPN: RN11YC4
• UPC: 037551000388
• Core Material: Copper
• Thread Size: 14mm x 1.25mm
• Shell Material: Metal, TinTac and ULTRASEAL coated
• Weight: 0.15 pounds
• Unit Count: 1 spark plug

Fitment

• Honda BF5 OHV, 4-Stroke, 5 HP
• Honda BF50 OHV, 4-Stroke, 5 HP

Frequently Asked Questions

What engines does the Champion RN11YC4 (part 322) fit? The Champion RN11YC4 spark plug, Champion Spark Plug #322, fits Honda BF5 OHV 4-Stroke 5HP and Honda BF50 OHV 4-Stroke 5HP outboard engines.

Is this a copper spark plug? Yes, the RN11YC4 uses a copper core center electrode, which allows for accurate control of heat range and provides longer plug life along with good conductivity.

What thread size does the Champion RN11YC4 use? This spark plug has a 14mm x 1.25mm thread size.

How many spark plugs come in a pack? The Champion RN11YC4 (Champion #322) is sold as a single spark plug, one per pack.

Does this spark plug resist corrosion in a marine environment? Yes, the RN11YC4 shell is coated with Champion's patented TinTac and ULTRASEAL coating for maximum corrosion resistance, which suits saltwater and marine use.

What is the difference between the Champion RN11YC4 and a standard automotive spark plug? The RN11YC4 is part of Champion's Copper Plus marine line, built with the TinTac and ULTRASEAL corrosion-resistant coating and a SAC-9 semiconductor for EMI and RFI suppression, features aimed at marine engine operating conditions rather than general automotive use.

What does the SAC-9 semiconductor do on this spark plug? The SAC-9 semiconductor in the Champion RN11YC4 provides maximum EMI and RFI suppression, reducing electrical interference from the ignition system.

How much does the Champion RN11YC4 spark plug weigh? The Champion RN11YC4 (part CCH322) weighs 0.15 pounds.

Is the Champion RN11YC4 built to any recognized standard? Yes, this spark plug is built to ISO and SAE standards for proven performance.

What is Champion Spark Plug number 322? Champion Spark Plug #322 is the manufacturer's internal number for the RN11YC4 Copper Plus Marine Spark Plug.

What material is the electrode core made of? The center electrode core on the RN11YC4 is copper, chosen for its conductivity and heat control properties.