Anti-Corrosion Coated Brake Rotors – Rust-Proof for Coastal & Humid Areas

S Class rear brake rotor
KLT340540 340mm rotor
S Class rear brake rotor
KLT340540 340mm rotor

CORINTH Anti-Corrosion Coated Brake Rotors | Rust-Proof for Coastal Areas - KLT340540

· Premium Anti-Corrosion Coating: All non-friction surfaces including the hub, cooling vanes, edges and bolt holes receive a heavy-duty protective coating that prevents rust and corrosion in coastal, humid and salt-exposed environments.

· Salt Spray Test Validated: The coating is validated through standardized salt spray testing, demonstrating superior corrosion resistance compared to standard uncoated or painted rotors for long-lasting protection.

· OE-Quality Cast Iron Core: Beneath the protective coating, the rotor is manufactured from high-quality G3000 cast iron with precision-machined friction surfaces delivering reliable OE-equivalent braking performance.

· Extended Rotor Service Life: By preventing corrosion that can degrade structural integrity and cause uneven wear, the anti-corrosion coating extends the overall service life of the rotor and reduces maintenance frequency.

· Direct OE Fitment & Balanced: Precision machined to exact original equipment dimensions for direct replacement, with dynamic balancing ensuring smooth, vibration-free braking in all operating conditions.


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  • Product Description

  • Engineered Quality

  • Qualification Certification

  • FAQ

CertificationsIATF 16949, R90
TypesSolid Disc, Ventilated Disc, Drilled Disc, Slotted Disc, Drilled & Slotted Disc
MaterialsCast Iron G3000, High Carbon Alloy
Part Number

OE#2224200572 / YH YH42012DR

BrandCORINTH/Support brand customization
Vehicle CompatibilityMercedes-Benz S350/ S400L / S450 / S450L / S500 Convertible / S500L 
LocationBackboard
Product AttributesMiddle hole diameter:69 mm
External diameter:340 mm
Pitch diameter: 112 mm
Overall height:54 mm
Brake pad thickness:24 mm
Minimum thickness:22 mm
Number of Bolt Holes:5


Product Overview

CORINTH anti-corrosion coated brake rotors are engineered for vehicles operated in coastal, humid and salt-exposed environments where standard uncoated rotors suffer from rust and corrosion. Available in multiple premium coating systems including Geomet, zinc plating, black e-coat and UV-cured finishes, these rotors provide long-lasting rust protection while maintaining OE-equivalent braking performance.

Core Corrosion Protection Advantages

  • Premium Coating Technology: Multiple coating options are available to suit different market requirements and price points. Geomet water-based zinc flake coating provides 500+ hours of salt spray resistance; zinc electroplating offers cost-effective corrosion protection; black e-coat delivers full-coverage protection with premium appearance; and UV-cured coating provides a durable, chip-resistant finish.

  • Complete Surface Coverage: The coating processes (dip-spin for Geomet, electrophoretic deposition for e-coat) ensure that coating reaches all surfaces including internal cooling vanes, bolt holes, edges and recessed areas — places where spray paint cannot adequately reach. This comprehensive coverage prevents corrosion in areas that would otherwise rust and degrade cooling efficiency.

  • Extended Rotor Service Life: Corrosion on non-friction surfaces can spread to friction surfaces, cause uneven wear, restrict cooling vane airflow and ultimately shorten rotor service life. The protective coating prevents this corrosion, maintaining structural integrity and cooling efficiency for a longer service life.

  • Clean Appearance Behind Wheels: The coated non-friction surfaces maintain a clean, uniform appearance — silver for zinc/Geomet, black for e-coat — preventing the unsightly rust buildup that detracts from the appearance of vehicles with open-spoke alloy wheels.

Application & Usage

  • Suitable Regions: Coastal areas with salt air, tropical high-humidity climates, northern regions with heavy winter road salt use, and any environment where moisture and corrosion are concerns.

  • Vehicle Types: All passenger cars, SUVs and light trucks operating in corrosion-prone environments.

  • Expected Service Life: 55,000–75,000 km, with corrosion protection lasting well beyond the friction material service life.

  • Coating Options: Geomet (premium, 500+ hr salt spray), zinc plated (cost-effective), black e-coat (premium appearance), UV coated (durable finish), fully coated (complete vane coverage).

Quality Assurance & Certification

Salt spray tested per ASTM B117 standards for corrosion resistance validation. IATF 16949 certified manufacturing with ECE R90 certification available for applicable models. 100% coating thickness and coverage inspection on every production batch. Full material and coating specification documentation provided for regulatory and customs purposes.


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.



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+86 15318655181

Jacky.pan@corinthauto.com

+86 18153529719

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