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Tempest Aviation Spark Plug UREM40E
Single Plug
Box of 12 PlugsOverview
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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. |
Application Guide
- Application Guide (PDF)
Reviews
These Tempest plugs were ordered as replacements for my current plugs which are getting worn. The current batch has given me flawless service
Verified Purchase
TEMPEST PLUG UREM40E 12 PK
So far, so good. Nicer finish than Champion.
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TEMPEST PLUG UREM40E 12 PK
Great product with good pricing.
Verified Purchase
TEMPEST SPARK PLUG UREM40E
One spark plug was unusable out of the package. The threads were distorted.
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TEMPEST SPARK PLUG UREM40E
Tempest sparkplugs are the best. Great pricing. Thanks
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TEMPEST SPARK PLUG UREM40E
Great product
Verified Purchase
TEMPEST SPARK PLUG UREM40E
Product performed as expected.
Verified Purchase
TEMPEST SPARK PLUG UREM40E
Verified Purchase
TEMPEST SPARK PLUG UREM40E
They seem better than the champion plugs that were replaced
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TEMPEST SPARK PLUG UREM40E
seem great so far, engine started right up and ran smooth
Verified Purchase
TEMPEST SPARK PLUG UREM40E
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
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.
18mm
The heat ranges actually overlap each other. You can use either one.
5/8 inch.
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.
Yes, they are equivalent applications and interchangeable.
