U5052 NTK Ignition Coil 48184

U5052 NTK Ignition Coil 48184

Part No: 48184

Brand: NGK

Item Model No: U5052

OEM No: 90919-02244 / 90919-02243 / 90919-02266 / 90919-19023

 

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Description

Get U5052 NTK Ignition Coil 48184 in Kenya

The ignition system plays a foundational role in engine performance, and at its core lies the ignition coil—responsible for converting the vehicle’s battery voltage into the high voltage needed to ignite the air-fuel mixture in the combustion chamber. The U5052 Ignition Coil, engineered to meet rigorous performance demands, is a high-quality coil-on-plug (COP) unit designed to deliver consistent spark energy, enhance fuel efficiency, restore engine power, and minimize misfires.

Manufactured using modern coil technology and high-end materials, the U5052 ignition coil offers precise energy transfer, reliable voltage output, and outstanding durability under high-temperature and high-vibration environments. It is built to provide long-term service, ensuring optimal combustion timing and complete ignition for every engine cycle.


Purpose and Function

The ignition coil serves as a step-up transformer, converting the 12V from the vehicle’s electrical system into the tens of thousands of volts required to fire a spark plug. The U5052 operates as an individual coil for each spark plug (coil-on-plug design), eliminating the need for a traditional distributor and minimizing power loss due to spark plug wire resistance.

Its task is twofold:

  1. Efficiently store energy from the vehicle’s electrical system.

  2. Release this energy in the form of a high-voltage pulse at the precise moment required for ignition.

With optimized winding configuration and magnetic core construction, the U5052 enables fast energy build-up and reliable voltage discharge, even under load or during rapid acceleration.


Design and Construction

The U5052 is engineered for high-performance ignition systems, combining a robust structural layout with precision-fit components. Key aspects of its construction include:

1. High-Efficiency Windings

The internal core features dual windings:

  • Primary winding: Constructed with thicker copper wire to handle battery voltage and create a magnetic field.

  • Secondary winding: Made of fine, high-turn-count copper wire capable of inducing high voltage when the magnetic field collapses.

The winding ratio is carefully calibrated to ensure an efficient step-up in voltage—routinely generating outputs between 25,000 to 45,000 volts, depending on system demand.

2. Magnetic Core

A laminated iron core with high magnetic permeability is at the center of the coil. It supports quick charge and discharge cycles and plays a critical role in maximizing spark strength while reducing energy loss.

3. Epoxy Resin Encapsulation

The internal windings and components are sealed in high-temperature epoxy resin. This encapsulation:

  • Provides electrical insulation.

  • Protects against heat, vibration, and moisture.

  • Enhances longevity in harsh engine conditions.

4. High-Temperature Thermoplastic Housing

The coil’s casing is built from advanced thermoplastic materials capable of withstanding continuous exposure to high temperatures, engine vibrations, and chemical contaminants such as oil, coolant, and fuel vapor.

5. Silicone Boot and Spring Contact

Each U5052 coil features a molded silicone boot integrated with a conductive spring, ensuring a secure connection to the spark plug terminal. The boot resists spark leakage and prevents flashover, even in high humidity or dusty environments.

6. Plug-and-Play Electrical Connector

The electrical interface includes a precision-molded terminal that provides a stable and secure connection to the engine control unit (ECU). This guarantees precise timing and eliminates signal disruption during operation.


Performance Benefits

The U5052 ignition coil is designed to restore and enhance ignition efficiency, improve engine stability, and support consistent combustion across all cylinders. Notable performance features include:

  • Consistent Spark Output: Maintains high-voltage energy pulses regardless of RPM or load.

  • Fast Rise Time: Enables rapid generation of spark voltage, especially important during cold starts and quick throttle response.

  • Fuel Efficiency Improvement: Promotes more complete combustion, reducing fuel consumption over time.

  • Reduced Emissions: Eliminates partial burns and unburnt fuel in the exhaust stream, helping lower hydrocarbon output.

  • Stable Idle and Acceleration: Ensures smoother transitions between power states, eliminating engine hesitation or surging.

  • Extended Spark Plug Life: Delivers controlled voltage to reduce spark plug erosion and fouling.


Installation Process

The U5052 ignition coil is engineered for easy installation with no modification required when replacing an equivalent unit. It follows a simple bolt-on process and fits snugly over the spark plug, secured with minimal tools.

Installation Steps:

  1. Disconnect the negative battery terminal.

  2. Remove any engine covers or intake components blocking coil access.

  3. Unplug the electrical connector from the old coil.

  4. Unscrew the coil mounting bolt.

  5. Gently twist and pull the old coil upward.

  6. Insert the U5052 coil into the spark plug well.

  7. Reinstall the mounting bolt and reconnect the wiring harness.

  8. Reattach engine components and reconnect the battery.

Torque specifications should always be followed, and it’s advisable to replace coils in sets when addressing aging ignition systems for balanced performance.


Failure Symptoms Solved by the U5052

An aging or faulty ignition coil can lead to several engine-related symptoms. The U5052 is designed to correct and prevent:

  • Engine misfires

  • Loss of engine power

  • Irregular idling or stalling

  • Increased fuel consumption

  • Poor throttle response

  • Rough cold starts

  • Illuminated engine warning lights (misfire-related codes)

Replacing an old or weak coil with the U5052 helps restore ignition reliability and consistent engine operation.


Use Cases and Maintenance Considerations

The U5052 is ideal for:

  • Routine coil replacement as part of scheduled maintenance.

  • Troubleshooting misfire conditions.

  • High-mileage vehicles requiring ignition system refresh.

  • Preventive upgrades before long-distance travel or engine modifications.

Maintenance Tips:

  • Always replace coils with matching spark plugs to avoid imbalance.

  • Use dielectric grease on boots to ensure a moisture-proof seal.

  • Inspect boot integrity for carbon tracking or oil contamination.

  • Avoid high-pressure washing near ignition components.


Key Technical Highlights

  • Design: Coil-on-plug (COP)

  • Voltage Output: Up to 45,000 volts

  • Windings: Dual copper windings (primary and secondary)

  • Core: Laminated high-efficiency magnetic core

  • Insulation: Epoxy-sealed internals

  • Housing Material: Thermoplastic polymer

  • Connector: OEM-spec terminal with plug-and-play fit

  • Boot: Silicone with internal spring


Summary of Advantages

Feature Benefit
High voltage output Strong, consistent spark delivery
Coil-on-plug design Direct spark transfer and energy efficiency
Epoxy encapsulation Enhanced heat, shock, and vibration resistance
Magnetic core Fast energy buildup and release
Thermoplastic housing Long-lasting structural stability
Boot and spring integration Reliable plug contact and insulation
Easy installation No modifications required

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