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Tempest Aviation Spark Plugs

234 Reviews 11 Answered Questions
From $57.75 to $2812.00
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Plug Number Plug Type Part #
Single		 Part #
Box of 12		 Buy
Single		 Buy
Box of 12
UREM38EMassive Electrode
08-00046
08-00046-12
$57.75
Quantity
$652.00
Quantity
URHM38EMassive Electrode
08-00047
08-00047-12
$57.75
Quantity
$665.00
Quantity
UREM40EMassive Electrode
08-00048
08-00048-12
$57.75
Quantity
$636.00
Quantity
URHM40EMassive Electrode
08-00049
08-00049-12
$57.75
Quantity
$636.00
Quantity
URHB32EMassive Electrode
08-00245
08-00245-12
$57.75
Quantity
$636.00
Quantity
UREB37EMassive Electrode
08-00246
08-00246-12
$57.75
Quantity
$636.00
Quantity
URHB37EMassive Electrode
08-00247
08-00247-12
$57.75
Quantity
$636.00
Quantity
UREM37BYMassive Electrode
08-00248
08-00248-12
$57.75
Quantity
$636.00
Quantity
UREM37HEMassive Electrode
08-07714
N/A$71.85
Quantity
--
URHB36SFine Wire
08-01230
08-01230-12
$239.95
Quantity
$2672.00
Quantity
URHM38SFine Wire
08-01232
08-01232-12
$239.95
Quantity
$2672.00
Quantity
UREB36SFine Wire
08-01233
08-01233-12
$239.95
Quantity
$2672.00
Quantity
UREM38SFine Wire
08-01234
08-01234-12
$239.95
Quantity
$2672.00
Quantity
URHB32SFine Wire
08-07213
08-07213-12
$239.95
Quantity
$2812.00
Quantity
Subtotal $0.00
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Overview

Aviation Spark Plugs
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.

Click here to find out what makes Tempest the supplier of choice for Continental Motors. (PDF)

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Reviews

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Order and shipping were fast.

Michel D Verified Purchase

Tempest Fine Wire Spark Plug UREB36S
November 19, 2024

Quick and good.

Linden B Verified Purchase

Tempest Spark Plug UREM40E
November 19, 2024

Valley A Verified Purchase

Tempest Spark Plug UREM38S
November 15, 2024

I much prefer Tempest spark plugs over other brands. They seem to last longer and have fewer issues.

172 M Verified Purchase

Tempest Spark Plug UREM38E
October 31, 2024

Plugs are working great.

Nick P Verified Purchase

Tempest Spark Plug URHB32E
October 30, 2024

So far so good but on one of the 8 that I ordered and it was the last one in the hardest spot, I couldnt get the plug wire on the threaded part. It looked like someone at the factory must have had them in a pair of vicegrips and damaged the threads. Fortunately I had a set of small files and I was forced to clean/repair the damaged threads with these files. If I didnt have a flight the next day I may have tried a return but I was out of time. This is my first Tempest Plug purchase so I hop this one inst indicative. The other 7 were fine.

Peter A Verified Purchase

Tempest Spark Plug URHM38E
October 24, 2024

they have worked well for me.

Stewart A Verified Purchase

Tempest Plug UREM38E 12 Pack
October 10, 2024

great

Ckent Verified Purchase

Tempest Spark Plug UREM37By
September 30, 2024

My champion plugs are fouling and their resistance is all over the place. Going to try Tempest. Better price and supposed better quality and consistency.

Theodore C Verified Purchase

Tempest Plug UREM40E 12 Pack
September 24, 2024

good value and great plugs

Central A Verified Purchase

Tempest Plug UREB37E 12 Pack
September 24, 2024

Q&A

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Please note, Aircraft Spruce Canada'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 Canada 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.

Q: Does the Tempest spark plugs include a gasket?

Yes, the plugs will include the gasket.

Q: Am I correct in assuming that the UREM40E has a hotter spark than the UREM38E? Also, will the UREM40E give a better burn rate with the hotter spark and maybe not become lead fouled as bad?

The higher the number the higher the heat rating position will be. so the UREM40E vs. UREM38E, the 40E will be the hotter plug because 40 is larger than 38. Hot plugs have relatively long insulator noses and, therefore, a long heat transfer path. Cold plugs have relatively short noses that thus transfer heat more quickly.

Q: What is the Tempest equivalent to the Champion REL37B plug?

Tempest does not have a replacement for an REL37B spark plug.

Q: What is the difference between the URHB and UREB prefix on the Finewire product number?

The H and the E refer to the barrel style. H prefix is shielded 3/4-20 thread and the E prefix is 5/8-24 thread.

Q: From your Tempest spark-plug price list: how can I tell which plugs are 5/8-24 and which are 3/4-20? (example: UREM40 p/n 08-00048 vs 08-00049)

"E" designates 5/8"-24. "H" designates 3/4"-20.

5/8"-24: UREB37E, UREM37BY, UREM38E, UREM40E, UREB36S, UREM38S

3/4"-20: URHB32E, URHB37E, URHM38E, URHM40E, URHB32S, URHB36S, URHM38S

Q: My champion spark plugs are RHB37E. What is the equivalent in the Tempest brand?

The equivalent is the URHB37E. For singles, use part # 08-00247, ad for 12 pack use part # 08-00247-12.

Q: I am using Champion massive REM40E plugs in my Lycoming 0320-A2D. Which Tempest fine wire plugs will be the equivalent?

The UREM38S is the fine wire replacement for the REM40E. There is no UREM40S plug.

Q: My champion massive electrode is an RHM38E. What’s the appropriate Fine Wire Tempest replacement?

Part number URHM38S would be the Temepst fine wire replacement.

Q: Do Tempest spark plugs comes pre gapped?

Yes, massive plugs are gapped .016 to .021 & fine wire are gapped .017 to .021.

Q: I want the equivalent Tempest plug of UREM 40E but in "long nose" Shape Tempest plug , ( massive electrode) , what will be the pn?

The long reach version would be the UREM37BY.

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