Front Brake Disc for HYUNDAI VELOSTER

Who says all SUV brake discs are the same? Let's take apart the Front brake disc for HYUNDAI VELOSTER 517123X000 , and you need to understand these figures first.

When looking for well-performing and reliable brake discs for Hyundai and Kia vehicles, higher prices do not always mean better quality. Instead, precise matching of technical parameters is the key. Today we are talking about the front brake disc 517123X000 for Hyundai and Kia, whose original part number is 51712-3X000. It is mainly fitted to Santa Fe and Grand Santa Fe models produced from 2013 to 2018, Sorento models from 2014 to 2020, and some model years of Carnival. These vehicles have a relatively large curb weight. They are used for daily urban commuting and highway driving, and occasionally carry a full load of passengers plus a large amount of luggage, which places a heavier load on the brake discs than people might expect.

Here are the key specifications for your reference to quickly confirm if this is the right brake disc for your vehicle:
Outer diameter: 280mm, standard thickness: 23mm, minimum allowable wear thickness: 21.4mm, disc height: 44.5mm. It features five wheel bolt holes and a center bore of 69mm, with a net weight of approximately 6.38 kilograms per piece and built-in ventilation slots. These strict specifications set the standard for original equipment replacement. A deviation of even one millimeter will lead to installation failure or insecure clamping. You can send these figures to your repair shop, and they will immediately confirm whether it is a direct-fit replacement part.

The Front brake disc for HYUNDAI VELOSTER 517123X000 is compatible with a wide range of cars, as follows:

There are different corresponding codes for the front brake disc for HYUNDAI/KIA 517123X000

Here is the assurance offered for front brake disc for HYUNDAI VELOSTER 517123X000 : For manufacturing defects such as casting porosity, out-of-tolerance dimensions and abnormal peeling of edge coatings, we provide a warranty of 12 months or 80,000 kilometres from the date of vehicle installation, whichever comes first. You only need to send us relevant photos and videos, and we promise to deliver a solution within 48 hours. We will replace the brake discs when necessary or offer a full refund accordingly, and you will not be charged for any round-trip shipping fees. However, we need to make it clear in advance that issues caused by improper installation such as reversed mounting, disc deformation due to excessive torque, or abnormal wear resulting from the use of extra-hard modified brake pads are not product defects and thus excluded from free after-sales services. It is easy to distinguish these situations, and our after-sales engineers can basically tell the cause just by examining the wear patterns.

All of our Front brake disc for HYUNDAI VELOSTER 517123X000 are manufactured at our modern production base in Laizhou, Shandong, which is equipped with industry-leading production facilities and a rigorous quality control system.
We adopt Danish DISA static pressure moulding lines for casting, ensuring uniform material composition of every brake disc with no internal defects such as pores or sand holes. The products are then processed with the double-tool opposed cutting technology. This technique guarantees that the two friction surfaces of the brake disc are completely parallel, with the tolerance controlled within ±0.035mm, exceeding the industrial standards.
Every brake disc undergoes 100% dynamic balance testing and ultrasonic flaw detection before delivery to eliminate potential quality issues. Our factory has also obtained the IATF16949 certification for international automotive quality management systems. All production procedures are implemented in strict compliance with relevant standards, so you can purchase and use our products with complete peace of mind.

Front brake disc for HYUNDAI VELOSTER 517123X000 Front Brake Disc Set (approximately 7.3 kilograms per piece) is double-packaged with OPP foam and hard cartons, which can effectively prevent collision and damage during transportation.

All orders are shipped directly from our factory in Shandong. The standard production and delivery lead time is 30 to 45 working days after order confirmation. We accept customers' designated freight forwarders. Please provide the detailed contact information of the freight forwarder within 72 hours after order confirmation.

This front brake disc for Hyundai/Kia with part number 517123X000 comes with a quality warranty of 80,000 kilometers or 12 months. Our products have passed the verification of the original brake system specifications of Hyundai and Kia, and can withstand frequent starts and stops during urban driving. The warranty covers manufacturing defects including casting flaws, surface finishing issues and dimensional deviations.

Q: After replacing the brake disc with part number 517123X000 on my Hyundai Santa Fe DM, I occasionally hear a soft "gurgle" sound when gently applying the brakes at low speeds. Could this be caused by an uneven brake disc?
A: Eight out of ten times, this issue has nothing to do with the brake disc. New brake discs are factory-calibrated to have a face runout within 0.03 mm, so uneven surfaces are virtually impossible. The noise is most likely due to the brake pads not fully bedding in with the disc surface, or insufficient lubrication on the caliper guide pins. Drive for about 400 kilometers for normal running-in and then check again. If the noise persists, ask a mechanic to apply some anti-squeal compound to the back of the brake pads and inspect whether the guide pins retract smoothly. This will resolve the problem in most cases.

Q: I drive a Kia Sorento L. I measured the brake disc thickness with a caliper and got approximately 26.5 mm. How much wear margin is left, and do I need to replace it immediately?
A: The OEM specified minimum wear thickness for this type of brake disc is 26.4 mm. A reading of 26.5 mm from your caliper means the disc is practically at the wear limit. Measurements taken on the inner ring of the disc with a caliper may have deviations, and rust around the disc edge can also mean the actual thickness is even lower. Once the thickness drops below 26.4 mm, the brake piston will have a longer travel distance during braking. In severe cases, the brake fluid cannot keep up, leading to a sudden soft brake pedal. It is not recommended to delay replacement. Replacing the brake disc now is the safest choice, and it will also allow new brake pads to fit perfectly.

In recent years, with the growing popularity of electric vehicles, the design of braking systems has undergone some changes. However, the basic working principles and maintenance methods of brake discs remain the same for traditional fuel vehicles. Here are several practical tips to share with you:

Regularly inspect the thickness and wear condition of brake discs. It is recommended to check the thickness and surface condition of brake discs every 20,000 kilometers or whenever you replace the tires. If you notice obvious grooves, cracks or deformation on the brake discs, replace them in a timely manner.

Avoid continuous braking for extended periods. When driving on long downhill sections, use engine braking to control the vehicle speed instead of keeping your foot on the brake for a long time. This prevents brake fade and deformation caused by overheating of the brake discs.

Pay attention to cleaning the brake discs when washing the car. After car washing, gently step on the brake a few times to evaporate moisture on the brake discs and prevent rust formation.

When replacing brake discs, it is advisable to replace the brake pads at the same time. This allows the new brake discs and brake pads to run in fully and deliver optimal braking performance.

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