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<h2><span style="font-size: 18px;">What is a steering knuckle assembly?</span></h2>
<p style="text-align: justify;"><span style="font-size: 14px;">A steering knuckle assembly is a key component of a vehicle's steering and suspension system. It is essentially a connection point between the wheel and the suspension, allowing the wheel to turn left and right while also supporting the weight of the vehicle. The steering knuckle assembly is located at the front of the vehicle, and it contains several important parts including the hub, spindle, bearings, and steering arm. When the driver turns the steering wheel, the steering system uses various mechanical linkages and hydraulic components to transfer that motion to the steering knuckle assembly, causing the wheels to turn accordingly. The steering knuckle assembly also helps <a href="https://a-premium.com/shock-absorber">absorb shock</a> and vibration from the road, providing a smoother ride for the driver and passengers.</span><strong><img style="display: block; margin-left: auto; margin-right: auto;" src="https://media.cdn.a-premium.com/2022/item/image/93a12585e3ec4b46b9852abaf8a8d172.gif" alt="steering knuckle assembly diagram" width="1000" height="375" /></strong></p>
<h2><span style="font-size: 18px;">Common reasons for steering knuckle assembly failure</span></h2>
<p><span style="font-size: 14px;">Steering knuckle assemblies can fail due to a variety of factors, including excessive wear and tear over time, lack of proper lubrication leading to increased friction, impact damage from driving over road hazards, corrosion from environmental exposure, improper installation or maintenance, manufacturing defects, overloading the vehicle beyond its capacity, and suspension modifications that place additional stresses on the system.&nbsp;</span></p>
<h2><span style="font-size: 16px;">A-Premium steering knuckle: Steering you to a smoother drive</span></h2>
<p style="text-align: justify;"><span style="font-size: 14px;">Engineered to high standards, A-Premium's steering knuckle assemblies deliver uncompromising durability, responsiveness, and safety to elevate your driving experience. Featuring corrosion-resistant components and a robust, well-integrated design, our products maintain peak performance over the long haul, minimizing maintenance needs while providing precise, confident maneuvering even in demanding conditions. Trusted for their seamless compatibility and hassle-free installation, <a href="https://a-premium.com/">A-Premium</a> steering knuckle assemblies empower drivers to enjoy a smoother, more reliable ride, backed by our commitment to quality. Elevate your vehicle's performance with our reliable, high-performing solution. In addition to offering a 90-day free return policy and a 3-year warranty, our customer service team is available 24/7 to assist you.</span></p>

Steering Knuckle Assembly

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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

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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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 Mercury Mountaineer Steering Knuckle Assembly

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