The steering knuckle arm is a genuine-grade replacement that matches or exceeds original equipment standards. Designed for the right-hand side, it integrates flawlessly with the kingpin and tie rod ends, delivering responsive steering with minimal play. The component undergoes rigorous magnetic particle inspection to eliminate any micro-cracks, ensuring zero failure risk in critical haulage operations.
Heat-treated to 42–48 HRC, the arm resists deformation under heavy lateral loads, making it ideal for mining, construction, and long-haul fleets. With the 199000410045, you eliminate premature wear and reduce downtime — a direct benefit for fleet managers who prioritize operational efficiency.
| Parameter | Value / detail |
|---|---|
| OEM number | 199000410045 (right-hand) |
| Material | Forged 42CrMo4 + QT |
| Hardness (HRC) | 44 – 48 |
| Weight | 18.7 kg (41.2 lbs) |
| Steering type | Reverse Elliot / Kingpin |
| Surface finish | Black oxide + oil coating |
| Compatible axle | HOWO HF12 / HF16 |
The steering knuckle arm is the pivot point between the suspension and the wheel hub. For HOWO and Sitrak trucks, the steering knuckle arm right-handed variant is specifically balanced to counteract the natural torque steer effect, providing straight-line stability even when fully loaded. Its unique geometry reduces scrub radius, which translates to lower steering effort and improved tire life — a tangible cost saving over 100,000 km.
Field performance: In independent tests, the arm withstood 1.2 million steering cycles without structural failure, outperforming aftermarket alternatives by 40%.
Replace the kingpin bushings and thrust bearing simultaneously with the steering knuckle arm to restore factory steering geometry. Always torque the retaining nut to 450–500 N·m and secure with a cotter pin. Lubricate the grease fitting every 5,000 km with lithium-based EP2 grease. Inspection intervals: visually check for cracks or excessive wear at each tyre rotation.
Each 199000410045 arm is individually packed in anti-rust paper + heavy-duty carton. Bulk orders (6 pcs per wooden crate) available for workshops.
Under normal highway conditions, the 199000410045 delivers 500,000+ km. For severe off-road use, expect 250,000 km with regular greasing.
Every batch of steering knuckle arm is accompanied by a material test certificate (EN 10204 3.1) and dimensional inspection report. The right-handed knuckle arm is 100% dimensionally verified using CMM equipment. Backed by a 12-month warranty against manufacturing defects — because reliability is non-negotiable for your fleet.
The OEM 199000410045 directly replaces the following part numbers: WG9725330005, AZ9725330006, and 199000410044 (left-hand counterpart). Always verify the side orientation — this listing is specifically for the right-handed steering knuckle arm. Using the correct side prevents steering geometry errors and uneven tire wear.
In summary, the steering knuckle arm (right-handed) from HOWO is the premium choice for operators who demand zero compromises. Its robust construction, exact fitment, and proven durability make it the backbone of your truck’s steering system. Order the genuine steering knuckle arm and experience the difference in handling precision and maintenance intervals.
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