MASSIVE ELECTRODE SPARK PLUG
Aviation Spark Plug With the most automated manufacturing processes and the most innovative spark plug in the aviation industry. Made in USA.
High Conductivity Copper Core Center Electrode copper, co-extruded inside a nickel alloy sleeve ensures outstanding heat and electrical conductivity while the nickel sleeve offers high resistance to corrosive combustion gases.
High Alumina Ceramic Insulator high mechanical strength, superior dielectric properties, proprietary protective glaze, provides high performance to conquer severe operational conditions. "Clean Collar" massive electrode "V" tip focuses heat to reduce fouling and enhance heat range control.
Proprietary Glass Center Seal 21st century 'fired in' resistor replaces the multipart screw, spring, carbon pile stack up used in competitive plugs and known to suffer from resistance value instability that can cause misfires, wasted fuel, engine roughness.
Nickel Finish environmentally preferable electrolytic nickel provides outstanding durable finish, superior corrosion protection, and extreme wear resistance.
Nickel Ground Electrodes aviation grade nickel electrode design focuses on minimizing sparking voltage requirements while maintaining specification gaps to ensure large, stable 'flame kernels' for on-time ignition and complete combustion.
Vacuum Infused Center Electrode proprietary, vacuum infusion process seals electrode/insulator gap providing stable heat range and superior center electrode cooling (heat flow to the insulator).
Hot-Lock Assembly intense pressure and heat create positive, zero-leakage, shrunk in seal between insulator and shell to contain the hot, high pressure combustion cycle gases.
Harness Wire Contact smooth, uninterrupted, oxide treated spring contact surface offers enhanced corrosion resistance, is chemically bonded to the fired-in resistor providing the ultimate harness/spark plug termination integrity and energy transfer.
prefer these plugs to the champion plugs.
I am a aircraft mechanic/IA I bought these spark plugs to keep ad back up. For a dropped plug or bad plug found during inspection.
They sell my product at their stores, But being they do I should be loyal. But like old habits!! you have to shop!!!!! But doing so !!! I found out The Co. had the best price other than a E bay , very little even their. So I guess it is faster and simple just open the book and order.. SAVE TIME AND !!! MONEY. SOME VENDERS WERE $10.00 HIGHER PR PLUG. AIRCRAFT SPRUCE IS EASY AND FAST.
Good plugs. All checked at appx 1600 ohms and weâ€™re ready to install. Running well on my engine.
Well. Theyre spark plugs. I dont understand why theyre so expensive, since they havent changed in over half a century, but it is what it is. ACS prices were at least as cheap as anyone elses, fast shipping, good service.
Great price, fast shipping!!
The Tempest plugs UREM40E are perfect for my Aeronca Champ O235 Lycoming.
Great pricing and quick delivery
Working great ,better starts and less mag drop
New Sparkers working perfectly. Eliminated some vibrations that the worn out plugs were introducing.
Each Tempest spark plug will come with one copper gasket. Any additional gaskets must be purchased separately.
Yes, the Tempest UREM40E is a direct replacement for the Champion REM40E. Both with work in the same applications.
The heat ranges actually overlap each other. You can use either one.
UREM38S is the fine wire version of UREM40E.
Yes, these will come pre-gapped within a certain range. The end user will need to verify with their application on what gap they are actually needing. The massive plugs are gapped .016" to .021" and the fine wire are .017 to .021".
Yes, the physical dimensions are the same for both brand plugs.
These are not. UREM37BY would be considered long reach.