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UREM38S
UREM38S
UREM38S
In stock

UREM38S

by TEMPEST®

The UREM38S center electrode uses a high‑conductivity copper core co‑extruded inside a nickel alloy sleeve.

$168.75
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Product Description

This item is an aviation spark plug with a fine‑wire iridium firing configuration used for ignition in compatible aircraft piston engines. It functions as an engine cylinder ignition element that delivers the required spark for combustion in general aviation powerplants that specify this plug designation.

0 1. Overview

The plug incorporates a high‑conductivity copper core center electrode enclosed in a nickel alloy sleeve to manage heat flow and electrical conduction in the firing area. A high alumina ceramic insulator with a protective glaze provides dielectric strength and mechanical durability for operation in severe engine environments. The firing end uses a fine‑wire configuration with a shaped electrode tip that concentrates heat at the firing point. Ground electrodes are formed from aviation‑grade nickel to maintain specified gaps while keeping firing voltage requirements under control. A proprietary glass center seal is fired in place to create a stable resistor connection between the center electrode and harness contact. The design uses a vacuum‑infused center electrode process to close the electrode‑insulator interface and promote effective cooling. A Hot‑Lock shell‑to‑insulator assembly is produced under pressure and heat to maintain a gas‑tight joint during combustion cycles. The harness contact end uses an oxide‑treated spring contact surface that is bonded to the fired‑in resistor for consistent electrical termination. The plug is manufactured in the United States and is supplied as a single unit with an approximate weight of 0.28 pounds and nominal dimensions of about 3.5 by 1 by 1 inches.

0 2. Key Features

  • Fine‑wire spark plug design for aircraft piston engine ignition systems
  • Iridium firing configuration at the center electrode
  • High‑conductivity copper core center electrode within a nickel alloy sleeve
  • High alumina ceramic insulator with protective glaze for dielectric strength and durability
  • Nickel ground electrodes shaped to maintain specification gaps and manage firing voltage
  • Proprietary glass center seal with a fired‑in resistor element
  • Vacuum‑infused center electrode joint at the insulator interface
  • Hot‑Lock shell‑to‑insulator assembly for a gas‑tight combustion seal
  • Harness wire contact with oxide‑treated spring surface bonded to the resistor element
  • Manufactured in the United States
0 3. Specifications

Manufacturer Part Number: UREM38S
Product Type: Fine‑wire aviation spark plug
Firing Configuration: Iridium fine‑wire center electrode
Center Electrode: High‑conductivity copper core in a nickel alloy sleeve
Insulator Material: High alumina ceramic with protective glaze
Ground Electrodes: Aviation‑grade nickel
Country of Origin: United States
Approximate Weight: 0.28 lb
Approximate Dimensions: 3.5 × 1 × 1 in
Pack Quantity: 1 spark plug

FAQs

01. What type of firing configuration does the UREM38S spark plug use?

The UREM38S uses an iridium fine‑wire firing configuration at the center electrode.

02. What materials are used in the center electrode of the UREM38S?

The UREM38S center electrode uses a high‑conductivity copper core co‑extruded inside a nickel alloy sleeve.

03. What is the purpose of the high alumina ceramic insulator in the UREM38S?

The high alumina ceramic insulator in the UREM38S provides mechanical strength, dielectric properties, and a glazed surface for high‑performance operation in severe engine conditions.

04. How does the UREM38S manage the seal between the shell and insulator?

The UREM38S uses a Hot‑Lock assembly that applies pressure and heat to create a shrunk‑in, zero‑leakage seal between the insulator and shell.

05. Where is the UREM38S aviation spark plug manufactured?

The UREM38S aviation spark plug is manufactured in the United States.

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