Diamond-Pattern Drilled Design: Features a visually refined diamond-shaped drill hole pattern across the friction surface, combining premium appearance with functional cooling performance for high-end vehicle builds.
Precision CNC Drilling: Each hole is positioned with high-precision CNC equipment to ensure consistent pattern symmetry, balanced rotation and optimal heat dissipation without compromising structural integrity.
High-Carbon Cast Iron Option: Available in high-carbon cast iron for improved thermal stability, crack resistance and long-term performance under demanding braking conditions.
Chamfered Hole Edges: All drilled holes are chamfered to reduce stress concentration, minimize pad wear and lower the risk of thermal cracking around hole edges.
Zinc Coated Premium Finish: Full zinc anti-corrosion coating provides a clean, premium appearance and long-lasting protection against rust, making the rotors visually appealing through alloy wheels.
| Certifications | IATF 16949, R90 | |
| Types | Solid Disc, Ventilated Disc, Drilled Disc, Slotted Disc, Drilled & Slotted Disc | |
| Materials | Cast Iron G3000, High Carbon Alloy | |
| Part Number | OE#LR059122 / YH YH21731 | |
| Brand | CORINTH/Support brand customization | |
| Product Code | KLT325520 | |
| Location | Front | |
| Product Attributes | Middle hole diameter：63.5 mm | |
| External diameter：325 mm | ||
| Pitch diameter: 108 mm | ||
| Overall height：52 mm | ||
| Brake pad thickness：30 mm | ||
| Minimum thickness：28 mm | ||
| Number of Bolt Holes：5 | ||
Product Overview
CORINTH diamond drilled brake discs are designed for drivers who want both high-end aesthetics and functional braking performance. The diamond-pattern drill arrangement creates a refined, premium look that stands out behind alloy wheels, while still delivering improved heat dissipation and reduced brake fade. These rotors are particularly suitable for luxury sedans, premium SUVs and styled performance builds.
Core Performance Advantages
Premium Visual Upgrade: The diamond-drilled pattern offers a more refined and high-end appearance compared to standard drilled rotors. The symmetrical hole arrangement creates a sense of precision and quality that enhances the visual appeal of the brake system, especially on vehicles with open-spoke alloy wheels.
Functional Cooling Performance: Beyond appearance, the diamond pattern still delivers real cooling benefits. The drilled holes increase surface area for heat dissipation, helping lower peak operating temperatures during hard braking. This reduces the risk of brake fade and maintains more consistent stopping power.
Carefully Engineered Pattern: The holes are positioned to avoid intersecting high-stress areas of the rotor, preserving structural strength. Each hole edge is chamfered to reduce sharp contact points with the brake pad, helping minimize accelerated pad wear and noise. The rotor is also dynamically balanced to ensure smooth operation at highway speeds.
Application & Vehicle Compatibility
Ideal for luxury sedans, premium SUVs, executive vehicles and performance builds where visual quality and braking performance are equally important. Compatible with all major premium vehicle brands including BMW, Mercedes-Benz, Audi, Lexus, Porsche, Volvo and other global luxury models. Available for front and rear axle applications with exact OE dimensions.
Quality Assurance & Certification
Manufactured in IATF 16949 certified facilities with premium-grade material options. Each rotor undergoes precision CNC drilling, dimensional verification, dynamic balance testing and surface quality inspection. ECE R90 certification available for applicable models. Full zinc anti-corrosion coating applied as standard. Backed by 12-month manufacturing defect warranty.
Precision Manufacturing
Advanced CNC machinery and automated production lines deliver micron-level accuracy on every brake component, ensuring consistent fit and performance across the entire product range.
OE-Standard Quality Control
Every batch undergoes rigorous inspection — from raw material testing to final dimensional verification — matching original equipment specifications for reliability you can trust.
High-Efficiency Production Capacity
Streamlined workflows and smart factory scheduling enable large-volume order fulfillment without compromising lead times or product consistency.
Certified Compliance
Manufactured under IATF 16949 certified processes with ECE R90 and AMECA validated products, meeting global regulatory standards for safety and durability.
End-to-End Traceability
Full production data tracking from forging to packaging gives complete quality transparency and rapid issue resolution at every stage.
IATF 16949 Certified Production Manufactured in our IATF 16949 certified facility, every brake disc is produced under strictly controlled quality management systems aligned with global automotive standards.
Comprehensive In-Line Testing Each batch undergoes full-line inspection covering:
· Brinell hardness testing to verify material integrity and wear resistance
· Parallelism and thickness variation measurement for smooth, vibration-free braking
· Dynamic balance testing to eliminate judder at high speeds
· Salt spray corrosion testing on coated models for long-lasting surface protection
Global Regulatory Compliance Most mainstream vehicle applications are ECE R90 approved for the European market, with AMECA certification available on request to meet North American requirements.
Full Lot Traceability Complete production records are maintained for every manufacturing lot — from raw material sourcing through final packaging — enabling rapid identification and resolution at any stage.
Consistent Quality from Sample to Scale Rigorous sample validation protocols carry directly into mass production, ensuring the same performance and reliability are delivered across both prototype and high-volume orders.
Frequently Asked Questions
Q: What certifications do your brake discs have?
A: Our manufacturing facility operates under the IATF 16949 quality management system — the global automotive industry standard for quality and continuous improvement. The majority of our mainstream brake disc models are ECE R90 approved for the European market, and AMECA certification is available on request for North American applications. All test reports and certification documents are available for review upon inquiry.
Q: Do you offer OEM / private label service?
A: Yes, full OEM and private label solutions are available. We support custom logo laser engraving or printing, branded packaging design, custom part numbering, and tailored performance specifications — including friction material pairing, coating options, and dimensional fine-tuning. Our engineering team works directly with you from design review through first-article inspection to ensure your branded product meets your exact requirements.
Q: What is your minimum order quantity?
A: For stock models, the MOQ is just 20 pieces per size, making it easy to test market demand. Custom branded OEM orders start at 300 pieces per model. Mixed-container orders across multiple part numbers are also supported to help you optimize shipping costs and inventory breadth. Small trial orders are welcome for new customers.
Q: How do I find the correct brake disc model?
A: Simply send us any of the following: the OE part number, a competitor's cross-reference number, or full vehicle details (brand, model, year, and chassis/VIN number). Our technical team will match it accurately against our comprehensive catalog database, typically within one working day, and confirm fitment including front/rear axle position and wheel size compatibility.
Q: What is the lead time for bulk orders?
A: Stock items ship within 7–10 working days from order confirmation. Mass production orders with custom branding or specifications typically require 20–30 working days, depending on order volume and complexity. Rush production can be arranged for urgent orders — please contact our sales team to discuss feasibility and any associated expediting fees.
Q: Can I get samples before placing a bulk order?
A: Absolutely. We encourage customers to evaluate quality firsthand. Samples are available for performance testing and dimensional verification; the buyer covers shipping costs, and samples dispatch within 3–5 working days. For confirmed bulk orders, sample fees can be credited back against your first purchase order as a goodwill gesture.
Q: What is your warranty policy?
A: We offer a 12-month / 50,000 km warranty against manufacturing defects under normal driving conditions and professional installation. This covers material defects, cracking, and abnormal wear attributable to production. Warranty claims are processed efficiently with photo documentation and lot number traceability, and replacement or credit is issued promptly upon verification.
Q: What types of brake discs do you offer?
A: Our range covers solid discs for standard passenger vehicles, vented discs for improved heat dissipation, drilled and slotted performance discs for sport and heavy-duty applications, and anti-rust Geomet-coated options for corrosion-prone markets. We also offer high-carbon and composite rotor constructions for premium and performance segments, ensuring a solution for every price point and regional requirement.
Q: What payment terms do you accept?
A: We support T/T (30% deposit, 70% balance before shipment), L/C at sight for larger orders, and Alibaba Trade Assurance for secure transaction protection. Established customers may apply for extended payment terms after a review of order history and credit standing.
Q: How are the brake discs packaged for shipping?
A: Each disc is individually wrapped in anti-rust paper or film, then placed in a neutral or custom-branded carton with protective foam inserts to prevent transit damage. Palletized shipping is standard for bulk orders, and we can accommodate custom packaging requirements such as barcoding, labeled SKUs, and retail-ready display boxes.
Q: Which markets do you currently supply?
A: We export to over 40 countries across Europe, North America, the Middle East, Southeast Asia, Africa, and Oceania. Our catalog covers European, American, Japanese, Korean, and Chinese vehicle makes, with regular updates to include the latest models and emerging market applications.
