Spindle
The steering knuckle — also known as the stub axle — is a vital part of the wheel suspension. It enables smooth steering, wheel guidance and the transfer of forces to the suspension.
The steering knuckle connects the wheel assembly to the suspension system and allows it to pivot during steering. It carries the wheel hub, brake caliper and bearing, and links directly to control arms, tie rods and suspension struts. Its role is crucial in handling, braking and overall stability.
In heavy-duty applications, steering knuckles endure extreme loads — from sharp turns and braking forces to bumpy surfaces and heavy cargo. Any wear, corrosion or structural damage can cause serious steering issues, uneven tire wear or even failure.
At Sanders Parts, we supply high-quality knuckles and stub axles tailored to commercial vehicles and trucks. Each unit is chosen for its strength, fitment accuracy and resistance to stress and corrosion. Left and right versions are available, along with matching fasteners and mounting hardware.
Key features and uses:
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Pivot point between suspension and wheel assembly
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Supports hub, brake and bearing components
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Crucial for directional control and load management
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Built to withstand impact, pressure and extreme use
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Available for various axles, brands and configurations
At Sanders Parts, you’ll find durable steering knuckles engineered for precision and strength — for confident handling and dependable suspension, mile after mile.