Steering knuckle king pin kits

Maintenance of the steering and axle system with steering knuckle king pin kits

In this section of our online store we offer a technical selection of steering knuckle king pin kits, critical components for the safety and maneuverability of heavy-duty vehicles. These repair kits restore the pivot connection between the front axle and the steering knuckle carrier, ensuring that the steering system responds accurately to the driver’s inputs.

Our catalog is aimed at mechanical workshops and fleet managers who need durable spare parts for trucks and industrial vehicles. Replacing these elements on time is essential to avoid major failures in the steering and axle system, as well as to prevent irregular tire wear and ensure vehicle stability on the road.

Criteria for selecting the right repair kit

• Axle reference: It is essential to identify the axle manufacturer’s plate to ensure exact compatibility, beyond the truck model.
• Bushing type: Check whether the assembly requires bronze bushings, bi-metal bushings, or needle bearings, according to the original specification.
• Pin dimensions: Check the diameter and length of the king pin, as well as whether it is tapered or cylindrical.
• Kit contents: Make sure the set includes all required accessories, such as shim washers, seals, locking pins and grease nipples.
• Lubrication system: Confirm that the layout of the lubrication channels matches the vehicle configuration to facilitate preventive maintenance.

Frequently asked questions

What function does the steering knuckle king pin serve in a heavy-duty vehicle?

The steering knuckle king pin acts as the main pivot axis that connects the steering knuckle to the vehicle’s rigid axle. Its function is to allow the front wheels’ angular movement for steering, while also supporting the high vertical and lateral loads generated during driving.

What are the symptoms of a worn king pin kit?

The most common signs include excessive play in the steering, metallic noises or clicking when turning the steering wheel, and irregular or premature wear on the tread of the front tires. Instability or vibrations in the steering wheel at certain speeds may also be noticeable.

Are steering knuckle king pin kits universal?

No, these components are highly specific. They vary by vehicle brand, model and, above all, the type of front axle fitted. It is crucial to check the chassis number (VIN) or the axle reference to purchase the correct spare part and avoid installation issues.

What maintenance do king pins require after installation?

The key to maximizing the service life of these components is periodic lubrication. High-pressure lithium grease must be injected regularly through the grease nipples to minimize friction between the king pin and the bushings, expelling impurities and preventing seizure.