PLUG SPARK (P/N rhb37e) - New Surplus

The RHB37E is an 18mm aviation spark plug designed for shielded ignition systems on Lycoming and Continental piston engines. It features a resistor element, two-prong massive electrode, and 3/4-20 shielded barrel connection. The plug installs with a 7/8-inch hex socket and connects to standard shielded ignition leads.

Gap setting must follow the applicable engine maintenance manual specifications. This spark plug is commonly used in general aviation and light aircraft powerplants requiring reliable high-temperature combustion performance.

What is the PLUG SPARK (P/N rhb37e)?

The RHB37E is an 18mm aviation spark plug designed for shielded ignition systems on Lycoming and Continental piston engines. It features a resistor element, two-prong massive electrode, and 3/4-20 shielded barrel connection.

Is the rhb37e compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The PLUG SPARK is available in: New Surplus. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the rhb37e come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the rhb37e?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.