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<h2>What is the wiring harness in a car？</h2>
&nbsp;
An automotive wiring harness, also known as a cable harness, wire harness, or wiring loom, is a structured set of wires, connectors, and terminals that are used to transmit electrical power and signals within a vehicle. It serves as an organized and efficient way to connect various electrical components and devices in the vehicle's electrical system.
&nbsp;
A&nbsp;wiring harness for car is to provide a secure and reliable electrical connection between different components, such as the engine, transmission, lights, sensors, dashboard controls, audio systems, and more. It eliminates the need for individual wires to be routed and connected separately, making the installation process faster, more efficient, and less prone to errors.
&nbsp;
<h2>Components of an automotive wiring harness</h2>
&nbsp;
<ol>
<li>Wires: Conductive paths in the wiring harness that carry electrical current. They are color-coded for easy identification and made of copper or aluminum for efficient conductivity.</li>
<li>Connectors: Join different sections of the harness together or attach it to electrical components. They come in various shapes and sizes, like plugs, sockets, and terminals, designed to fit specific connectors on vehicle components.</li>
<li>Terminals: End points of individual wires within the harness, connecting to connectors or components' electrical terminals. Terminals are crimped, soldered, or connected through other methods for secure electrical connections.</li>
<li>Protective Covering: Encases the wiring harness to shield wires from heat, abrasion, moisture, and external factors. Common coverings include plastic tubing, convoluted loom, and heat-resistant tape.</li>
</ol>
&nbsp;
<h2>Car wiring harnesses&nbsp;benefits</h2>
&nbsp;
<ul>
<li>Improved Reliability: Wiring harnesses are designed to be durable and resistant to wear, reducing the chances of electrical failures or short circuits.</li>
<li>Simplified Repairs: Since the wiring is neatly organized and labeled, troubleshooting and repairing electrical issues become more manageable.</li>
<li>Time and Cost Efficiency: Pre-manufactured wiring harnesses speed up the vehicle assembly process, reducing labor costs and the risk of assembly errors.</li>
</ul>
Standardization: Wiring harnesses help standardize electrical connections across different vehicle models, simplifying manufacturing and maintenance processes.

Wiring Harness

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Air Filter Box

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Air Flow Sensor

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Air Intake Manifold Flap Adjuster

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Air Intake Manifold Runner Control Sensor

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Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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Intake Manifold Flap Actuator

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Intercooler

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Oxygen Sensor

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Pressure Sensor

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Throttle Body

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Throttle Position Sensor

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Turbocharger

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

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Camshaft Timing Gear

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Camshafts

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Engine Valve Cover

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Harmonic Balancer

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Timing Belt Kit

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

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Oil Cooler

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Oil Cooler Line

Oil Filler Cap

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Oil Filter

Oil Filter Base

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Glow Plug Relay Module

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Ignition Coil

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Ignition Coils & Spark Plugs Kits

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Ignition Distributor

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Ignition Starter Switch

Ignition Switch Actuator

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Engine Components & Accessories

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Auxiliary Water Pump

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Expansion Tank

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Expansion Tank Mounting Plate

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Fuel Cooler

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Radiator

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Radiator Hose

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Radiator Support Assembly

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Temperature Sensor

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Turbo Hose

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Water Coolant Pipe

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Water Outlet

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Engine Cooling

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Engine Mount

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Engine Mounts

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Catalytic Converter

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EGR Valve

Emissions Fluid Pump

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Exhaust Fluid Heater

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Exhaust Gas Temperature Sensor

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Exhaust Manifold

Fuel Tank Breather Valve

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Fuel Vapor Leak Detection Pump

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Nitrogen Oxide Sensor

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Secondary Air Injection Check Valve

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Vapor Canister Vent Solenoid

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Exhaust & Emission Systems

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Fuel Filter

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Fuel Injection Control Module

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Fuel Injection Pressure Regulator

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Fuel Injector

Fuel Injector Kit

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Fuel Injector Module Wiring Harness

Fuel Line Kit

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Fuel Pump

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Fuel Sending Unit

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Fuel Tank Filler Neck Pipe

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Fuel Tank Strap

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Fuel Systems & Components

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

2009 GMC Yukon Wiring Harness

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