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<h2>Advantages of using an ignition coils and spark plugs kit</h2>An ignition coils and spark plugs kit is a package that typically includes both ignition coils and spark plugs. An ignition coil and spark plug kit is often mentioned and sold together because these components work closely together in the ignition system. Advantages of using an ignition coils and spark plugs kit include:<ol><li>Improved Performance: Enhances engine performance, throttle response, and power output.</li><li>Fuel Efficiency: Increases fuel efficiency and potentially improves gas mileage.</li><li>Emission Reduction: This leads to cleaner combustion, reducing emissions.</li><li>Smooth Idling: Promotes smoother and stable idling.</li><li>Reliability: Enhances overall ignition system reliability.</li><li>Simplified Maintenance: Convenient package with all necessary components.</li><li>Optimal Timing: Maintains proper ignition timing.</li><li>Consistency: Ensures consistent ignition across all cylinders.</li><li>Extended Component Life: This can potentially prolong the life of coils and spark plugs.</li><li>Cost-Effective: Often more cost-effective than buying components individually.</li></ol><h2>Should I&nbsp;replace ignition coils with spark plugs?</h2>Replacing ignition coils along with spark plugs is not always necessary, but it can be a wise decision in certain situations:<ul><li>Mileage and age: Consider replacement if your vehicle has high mileage or the ignition coils are old to maintain optimal performance.</li><li>Maintenance schedule: Refer to your vehicle's maintenance schedule for recommended replacement intervals.</li><li>Symptoms: If you experience issues like misfires, rough idling, reduced power, or poor fuel efficiency, consider inspecting and potentially replacing both components.</li><li>Efficiency and reliability: Simultaneous replacement can ensure consistent ignition timing, enhance reliability, and improve efficiency.</li><li>Cost consideration: Evaluate the condition of the components; if ignition coils are relatively new, you may replace only spark plugs.</li><li>Diagnostic testing: Consider diagnostic testing to assess the condition of ignition coils for an informed decision.</li></ul>

Ignition Coils & Spark Plugs Kits

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Air Filter Box

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Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

Air Intake Duct

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Air Intake Hose

Air Intake Manifold Actuator Control Solenoid

Air Intake Manifold Flap Adjuster

Air Intake Manifold Runner Control Sensor

Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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 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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High Pressure Fuel Pump

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Idle Air Control Valve

Mechanical Fuel Pump

Oil Pressure Relief Valve

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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.

2004 Volvo S40 Ignition Coils & Spark Plugs Kits

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