⚙️ Technical Infrastructure & Anti-Fouling Mechanics 

A brand-new, factory-sealed general aviation ignition component: the Tempest Aviation UREM37BY All-Weather Shielded Spark Plug.

Specifically engineered for high-idling or flight-school profiles where low-power operations frequently induce terminal plug fouling, this unit relies on a high-conductivity copper core and a proprietary fired-in glass center resistor to ensure stable, high-intensity spark delivery without the internal resistance drifting common to multi-piece spring designs.

• Brand / Manufacturer: Tempest Aviation (Aero Accessories)

• Part Number Identification (MPN): UREM37BY

• Champion Cross-Reference Equivalent: REM37BY

• Electrode Configuration: Massive Electrode featuring an extended nose two-prong "V" tip profile.

• Dimensional Specifications: 18mm Mounting Thread Size, 1/2" (12.7mm) Short Reach, and a 7/8" installation hex drive.

• Shielding Barrel Matrix: Standard 5/8"-24 all-weather shielded barrel connection hookup.

• Engine Eligibility Profile: Direct fitment for the most common trainer and touring piston powerplants, including the Lycoming O-235, O-320, and O-360 series, alongside Continental O-200 and O-300 series.

• Primary Problem-Solver Application: Highly recommended for flight training fleets running Cessna 150/152/172 and Piper PA-28 Cherokee models experiencing stubborn bottom-cylinder lead-fouling cycles.

💎 Condition Report & Airworthiness Traceability

• Status: Brand New In Box (BNIB) / New Old Stock (NOS).

• State: Flawless, factory-fresh airworthy state. Every individual plug remains completely sealed inside its original high-impact factory protective sleeve, keeping the preset electrode gap distance entirely safe from distortion or handling damage. The electrolytic nickel casing plating is uniform, bright, and completely free of oxidation or storage tarnish.