Product Introduction
The Chery QQ3 is a long-standing model in China's domestic microcar market. It is lightweight and nimble, primarily designed for urban commuting. Many people assume small cars have low braking requirements, yet this belief is actually quite dangerous.
The curb weight of the entire QQ3 is under 900 kilograms, with front disc and rear drum brakes as its original factory configuration.
However, precisely because the vehicle is light, its braking system has minimal built-in safety margin. Frequent stops and starts in city traffic, coupled with repeated braking at traffic lights, lead to heat buildup on the brake discs that is no less severe than that of larger vehicles. Additionally, many QQ3 owners use the car for ride-hailing services or as practice vehicles for new drivers. High usage frequency and inconsistent braking habits result in far greater wear on the brake discs than most people anticipate.
Although the S113501075 is a front brake disc, it is widely paired with full-vehicle brake upgrade kits for the QQ3 in the aftermarket sector.
Boasting an outer diameter of 236 mm and a standard thickness of 12.3 mm, it offers sufficient specifications for this compact car.
The critical factor lies in matching material quality and machining precision; even ideal dimensional specifications become useless without these two attributes.
Product Parameter
|
Location |
Rear Brake |
Diameter |
236mm |
|
Brake Disc Thickness |
12.3mm |
Minimum Thickness |
9.7mm |
|
Centering Diameter |
86mm |
Height |
35mm |
|
Number Of Holes |
4 |
Pitch Circle Diameter |
108mm |
|
Solid Or Vented |
S |
Weight |
3.60kg |
Car Model
The Chery QQ3 Rear Brake Disc S113501075 is compatible with a wide range of vehicle models, as follows:


Chery QQ3 2003/06-
Reference No.
Multiple compatible part codes are available for the Chery QQ3 Rear Brake Disc S113501075
|
OE |
S113501075 |
TRW |
DF7822 |
Surface Treatment






Many of my colleagues in the field of brake disc exports do not pay enough attention to surface treatment. They think that since the braking surface will get worn out once the disc is installed, it doesn't matter whether a coating is applied or not.
This mindset needs to change.
Our S113501075 brake discs use a high-temperature anti-corrosion coating process; it's not the kind of simple coating applied just by spraying ordinary paint as is done in some cases.
Specifically, after the non-friction surfaces of the disc are cleaned using shot blasting, they are coated with electrostatic powder coating, with the thickness of the coating controlled between 15–25 μm. The coating is cured at temperatures above 200°C, resulting in adhesion that meets ISO 2409 standard level 1. In other words, the coating won't peel off, won't bubble, and won't cause rust during shipping by sea.
Why is this important? Because when goods are shipped by sea, the journey takes anywhere from twenty days to over a month, and the conditions inside the container are characterized by high humidity and salt spray. Without such a coating, cast iron discs will be covered in rust once opened by the customer, leading to rejection of the product. Our coating ensures that no rust occurs within 6 months under normal shipping conditions.
Additionally, in Europe, standard EU7 is now imposing stricter requirements on brake particulate emissions. Brake discs with coatings have a clear advantage in terms of reducing rust and wear. Although our discs are primarily aimed at developing markets, it's important to keep an eye on this trend – coatings will eventually become standard rather than an optional feature.
Machining Workshop
All of our 【Chery QQ3 rear brake discs S113501075】 are manufactured in standardized, precision-driven brake parts production facilities, where automated processes are combined with thorough manual inspections to ensure high quality and eliminate any substandard products. These discs meet all the quality standards required for export, offering consistent performance that satisfies the needs of large-scale procurement orders overseas. The factory is equipped with a full range of advanced manufacturing equipment, including fully automatic CNC lathes, double-sided grinding machines, dynamic balance testers, and hardness testers. All brake disc blanks are made from high-quality gray cast iron that meets national standards; this material has uniform density and the necessary hardness, which helps to prevent casting defects such as pores, cracks, and other impurities. During processing, a double-sided grinding technique is used to maintain tight control over the thickness of the disc surface, with tolerances of ±0.04 mm, and lateral deviation of no more than 0.05 mm – far exceeding industry standards – thus ensuring that each disc fits perfectly and provides consistent braking performance. Additionally, the factory has dedicated quality inspection stations where every 【Chery QQ3 rear brake disc S113501075】 undergoes 100% testing before leaving the factory. This testing includes over a dozen parameters such as dimensional accuracy, dynamic balance, paint adhesion, material hardness, and sealing properties. Any defective product is discarded immediately and does not make it to the market. The factory operates in a dust-free, enclosed environment, which prevents dust and contaminants from settling on the disc surfaces, ensuring the purity of the braking surfaces. By controlling quality at the production stage, these discs meet the import quality requirements of countries in Europe, America, Southeast Asia, and elsewhere.

Delivery,shipping and serving
Regarding packaging, the product is wrapped in two layers of OPP foam followed by a hard cardboard box to provide additional protection; this setup helps to prevent damage from impacts, oxidation, and compression for those small, precision braking components. It ensures that no wear, paint loss, or deformation occurs during transportation, thus guaranteeing that the goods arrive at their destination in perfect condition. As for the delivery timeline, standard orders are shipped within 30–35 working days after confirmation, while orders with items in stock can be dispatched within 7 working days. The logistics options are flexible – customers can specify their own freight forwarder and choose the shipping method they prefer. For these lightweight, small-sized products, we recommend using sea freight for shipments to Southeast Asia and the Middle East, while for deliveries to Europe and the Americas, sea freight or air freight can be chosen depending on the volume of goods. For urgent orders in small quantities, express air shipping can be arranged at an additional cost, helping customers to minimize their logistics expenses as much as possible.
【Chery QQ3 Rear Brake Disc S113501075】Offers industry-standard warranty services; the warranty period is 12 months or 80,000 kilometers, whichever comes first. The warranty covers defects related to the casting process, uneven material quality, and precision issues at the time of production – that is, problems that are not caused by human error. Faults resulting from improper installation, aggressive modifications, extreme wear due to road conditions, or intentional damage are not covered under the warranty.
FAQ
Q1: Which QQ3 model years is the 【Chery QQ3 rear brake disc S113501075】 suitable for? Is it universal?
A: This brake disc is specifically designed for the rear braking systems of all Chery QQ3 models from 2003 to 2013. The part number S113501075 matches the specifications of the original chassis exactly; no modifications or grinding are required, and it can be installed directly in place. It is suitable for all models without any compatibility issues.
Q2: Is slight noise when braking at low speeds a defect of the product after installing S113501075?
A: It is not a quality issue with the product. New brake discs and pads require about 300 kilometers of running time to adapt to each other – during this period, the contact surfaces have not fully bonded together, so slight noise is normal. If there is still a sharp noise after this adaptation period, it is likely due to glazing on the surface of the brake pads or debris trapped in them; cleaning the contact surfaces will resolve the issue.
Q3: What are the replacement criteria and routine inspection intervals for the 【Chery QQ3 rear brake disc S113501075】?
A: In normal household use, it is recommended to check the condition of the brake disc every 20,000 kilometers. In situations involving frequent braking in urban areas, inspections should be carried out every 15,000 kilometers. The disc needs to be replaced promptly when its thickness drops to the minimum of 8 mm, or when there is a lateral deviation of more than 0.06 mm, or when there are rusted grooves deeper than 0.4 mm.
Last News
In recent years, the number of micro-vehicles and cost-effective gasoline-powered cars worldwide has been on the rise. Vehicles like the Chery QQ3, which offer good value for money as household transportation options, are seeing an increasing demand in overseas markets such as Southeast Asia, the Middle East, South America, and Eastern Europe. As a result, there is a growing need for standard replacement parts such as rear brake discs and brake pads, leading to a steady demand for these items in international trade and a persistent shortage in the market.
Currently, the overseas market for auto parts places greater emphasis on replacement parts that are highly precise, resistant to corrosion, and offer good value for money. Low-quality brake discs that lack quality control, are prone to rusting, and have poor precision are gradually being phased out by the market. Our [Chery QQ3 Rear Brake Disc S113501075] meets the requirements of today's overseas end-users and wholesalers thanks to its HT250 material with high wear resistance, precise manufacturing processes, heat-resistant coating, and a comprehensive after-sales warranty system.
At the same time, the logistics infrastructure for cross-border auto parts trade is becoming increasingly sophisticated. The costs associated with shipping small auto parts by sea are continuously decreasing, and it has become easier to handle small orders or custom shipping arrangements, thereby reducing the barriers for overseas customers to make purchases. In the future, the key competitive advantages for export of replacement brake parts for cost-effective passenger cars will lie in four aspects: precise specifications, stable quality, excellent after-sales service, and outstanding value for money. We will continue to improve our manufacturing processes and logistics services to meet the long-term procurement needs of customers around the world.
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