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.

What certifications or documentation come with the rhb37e?

Depending on condition, the rhb37e may include an FAA 8130-3 Airworthiness Approval Tag, a yellow serviceable tag, or manufacturer documentation. Currently available in: New Surplus. Contact us for specific documentation details on the condition you need.

Can I use the rhb37e during an engine overhaul or annual inspection?

Yes, the PLUG SPARK can be used in engine overhauls and maintenance events. Always verify part compatibility against your engine's Type Certificate Data Sheet (TCDS) and Illustrated Parts Catalog (IPC) before installation.

What is the lead time for the rhb37e?

In-stock items ship same business day when ordered before 3 PM EST. We also offer 24/7 AOG (Aircraft on Ground) support at (904) 998-9101 for urgent engine part needs.