The steering knuckle is the pivot at the centre of the front corner of the car — it carries the wheel hub, provides the mounting points for the brake calliper and disc, and connects the suspension geometry (via ball joints and the strut) to the steering rack. Because every suspension load and every braking force passes through this single casting, dimensional accuracy is critical: even slight misalignment in the wheel bearing bore or the ball joint taper affects tyre wear and steering precision. Knuckles are not routine service items — they typically fail only after accident damage or severe corrosion that has compromised the casting. The symptoms that precede replacement are persistent steering pull that cannot be eliminated by alignment adjustment, excessive wheel bearing play where the hub flange itself has become oval, or a visible crack in the casting discovered during workshop inspection. NTY and GH manufacture knuckles for a wide range of European applications, with strong coverage of the Volkswagen Group platforms (VW, Audi, Škoda, SEAT) that dominate demand in this category. Because the wheel bearing interference fit, brake calliper mounting bolt pattern, and ball joint taper angle are machined to precise OE tolerances, matching the OE number is essential — an incorrect knuckle can cause brake geometry errors, premature wheel bearing failure, or incompatible steering angles.
Browse all Wheel suspension steering knuckle in our catalogue
Steering knuckles are chassis-specific: wheel bearing bore diameter, brake calliper bolt circle, ball joint taper dimensions, and suspension strut mounting geometry all vary between platforms, model years, and brake system variants (e.g., solid vs ventilated disc). Each listing on this page carries the TecDoc OE references mapped to exact vehicle configurations. Use your make, model, engine, and build year — and if relevant, confirm whether your vehicle has a standard or sport braking package, as these can dictate different calliper flanges.
OEM steering knuckles are manufactured to the vehicle builder's casting and machining tolerances by tier-one suppliers. Quality aftermarket knuckles from NTY or GH are produced to the same dimensional specifications and undergo equivalent quality checks. Lower-cost alternatives may have looser machining tolerances in the wheel bearing bore or ball joint taper, which can cause a press-fit bearing to work loose prematurely or introduce play in the ball joint seat — both of which affect handling and tyre wear progressively over time.
Not necessarily — steering knuckles are typically replaced as a result of specific damage on one side rather than symmetric wear. However, if the knuckle failure was caused by structural corrosion rather than impact, it is worth inspecting the opposite side closely, as both are the same age and subject to similar salt and moisture exposure. Ball joints and wheel bearings fitted to the replacement knuckle should be new regardless, as the old components are unlikely to survive the press-out process without damage.
Steering knuckles rarely fail gradually — the most common presentations are a cracked or deformed casting found during post-accident inspection, or a wheel bearing bore that has become bell-mouthed through repeated bearing replacement, causing the new bearing to work loose within weeks. Less dramatically, a steering pull that persists after correct wheel alignment, combined with wheel bearing play that does not resolve with a new bearing, can indicate that the knuckle casting is out of tolerance. Any visible crack in the casting, however small, is grounds for immediate replacement.
Showing 100 of 1,716 Wheel suspension steering knuckle OE numbers. Enter the OE on the main OE search to jump to any reference.
