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<h2>What is a balance shaft?</h2>
A balance shaft, also known as a balancing shaft or counterbalance shaft, is a rotating component used in some internal combustion engines to help reduce vibrations and improve engine smoothness.&nbsp;The balance shaft&nbsp;in an internal combustion engine is typically positioned parallel to the crankshaft, driven by the engine's timing system, and housed within the engine block.
A balance shaft typically consists of a weighted shaft that rotates twice the speed of the engine's crankshaft. Doing so generates forces that are equal in magnitude but opposite in direction to the unbalanced forces produced by the engine's pistons and other moving components. Its implementation helps enhance the driving experience by minimizing noise, vibration, and harshness (NVH). This is particularly important for engine designs that are prone to generating elevated levels of vibration.
<h2>What happens when the balance shaft fails?</h2>
<ul>
<li>Increased vibration: Noticeable engine roughness or vibration can indicate the balance shaft&nbsp;is not properly counteracting imbalances.</li>
<li>Engine roughness: A faulty balance shaft&nbsp;can cause the engine to run more roughly, with perceptible vibrations.</li>
<li>Unusual noises: Grinding, whirring, or knocking sounds from the engine may suggest balance shaft&nbsp;bearing or component problems.</li>
<li>Decreased fuel efficiency: A malfunctioning balance shaft&nbsp;can lead to increased engine losses and reduced fuel economy.</li>
<li>Check engine light: The vehicle's diagnostics may detect balance shaft sensors or system issues, triggering the check engine light.</li>
<li>Loss of power: Severe balance shaft&nbsp;failure can result in a noticeable decline in engine performance and power.</li>
</ul>
Prompt attention to warning signs is key to preventing further damage. Regular maintenance helps identify potential balance shaft issues early. Addressing balance shaft problems promptly extends the shaft's lifespan and mitigates harm to other components, like <a href="https://a-premium.com/engine-mount">engine mounts</a>.
<h2>Reliable balance shafts from A-Premium</h2>
A-Premium's balance shafts are made from high-quality materials, ensuring exceptional durability and longevity. Their finely tuned dynamic balancing system effectively counters the engine's internal vibrations, significantly reducing noise and harshness. The result is a more comfortable and serene driving experience for both the driver and passengers.
Benefit from fast shipping to receive your balance shafts promptly, reducing downtime. Our 90-day free return policy guarantees you can send it back if it fails to meet your needs. Enjoy the confidence of our industry-leading 3-year warranty, safeguarding your investment. Our superior service level distinguishes us from competitors, delivering an unparalleled customer experience.

Balance Shaft

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Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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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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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

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Engine Oil Pan Gasket

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Flywheel

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Oil Cooler

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Oil Cooler Line

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Oil Filter

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Oil Filter Housing

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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

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

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Engine Components & Accessories

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Expansion Tank

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Expansion Tank Mounting Plate

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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

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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.

2009 Audi A4%20Quattro Balance Shaft

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