Knorr-Bremse Caliper – Rationalized K003804
K003804, K 00 38 04, K.00.38.04
Product Overview
The K003804 is a high-performance disc brake caliper designed by Knorr-Bremse for heavy-duty trucks, buses, and trailers. Known for its enhanced braking efficiency and reduced maintenance demands, this caliper is part of the “rationalized” range—meaning it is optimized to serve multiple applications while simplifying inventory management.
Key Features
- OEM Part Number: K003804
- Rationalized design for multi-vehicle compatibility
- High-resistance casting for durability in commercial operations
- Reduced weight with no compromise on braking performance
- Improved pad wear balance and thermal stability
- Designed to meet or exceed EU braking regulations
Vehicle Compatibility
- Fits multiple truck and trailer models across brands like Mercedes-Benz, Volvo, MAN, DAF, and IVECO
- Can be cross-referenced with prior Knorr-Bremse part numbers
- Used in axle positions with disc brake systems requiring rationalized calipers
Benefits of Using Genuine Knorr-Bremse Calipers
- Maintains OE braking performance and safety standards
- Reduces downtime with long service intervals
- Backed by OEM warranty and technical support
- Perfectly fits with original Knorr-Bremse disc pads
Wholesale Supply by AAA Trading Dubai
We specialize in bulk supply of genuine Knorr-Bremse parts for fleet owners, workshops, and distributors. With export-ready inventory and competitive pricing, we ensure fast delivery worldwide.
Contact for Orders & Technical Support
AAA Trading Dubai – Auto Parts Wholesalers
Phone: +971 50 443 1871
Shipping & Delivery Policy
At Triple A Trading, we are committed to fast, reliable shipping to ensure our clients receive their automotive spare parts without unnecessary delays. We are a registered business in Dubai, United Arab Emirates. For more information about business registration, please visit the Dubai Trade Portal.
Order Processing Time
All orders are processed within 1-3 business days following payment confirmation. You'll receive a notification once your order has been dispatched.
Shipping Options & Delivery Timeframes
- Standard Shipping – Delivered within 5-7 business days
- Expedited Shipping – Delivered within 3-5 business days
- Express Shipping – Delivered within 1-3 business days
Shipping Costs
Shipping rates are calculated based on your order’s weight and destination. The total shipping cost will be clearly displayed at checkout before finalizing your order.
International Shipping
We proudly serve customers across Africa, Europe, Asia, and the Middle East. Please note that international shipments may be subject to customs duties and taxes, which are the customer’s responsibility.
Triple A Trading works diligently to ensure smooth cross-border deliveries, minimizing delays due to customs or political complications. For more details, please refer to the Dubai Customs official website.
Order Tracking
Once your order ships, you'll receive a tracking number via email, which can be used to monitor the shipment through the carrier's website.
Delivery Issues
If you experience any issues with your delivery, such as delays or missing items, please contact our customer service team:
- Email: sales@triple-a-trading.com
- Phone: +971 50 443 1871
We’re here to assist you and ensure your order is resolved quickly and efficiently.
Thank you for choosing Triple A Trading – Your trusted source for quality automotive spare parts, delivered with speed and care.
What does “Rationalized” mean in the context of the K003804 caliper?
"Rationalized" refers to Knorr-Bremse’s streamlined engineering approach, enabling a single caliper model to fit multiple vehicle applications. The K003804 is compatible with a broad range of trucks and trailers, reducing inventory variety without sacrificing braking performance.Is the K003804 an OEM product?
Yes. This is a genuine Knorr-Bremse original component, meeting strict OEM standards for build quality, safety, and durability. All units are factory-tested and sealed for authenticity.Which commercial vehicles are compatible with the K003804 caliper?
The K003804 caliper is used in various European heavy-duty vehicles, including DAF, Volvo, MAN, Mercedes-Benz, and IVECO. It supports multiple axle configurations and is part of the rationalized brake series used in modular fleet maintenance.What are the key benefits of using this caliper?
- Multi-vehicle compatibility reduces parts inventory
- Even brake pad wear and improved braking stability
- OEM fitment guarantees ease of replacement
- Lower long-term maintenance costs
Do you supply this product in bulk to wholesalers and fleet operators?
Yes. At AAA Trading Dubai – Auto Parts Wholesalers, we specialize in B2B and fleet supply. Bulk pricing is available for resellers, fleet managers, and international buyers, with priority export logistics.Is the caliper supplied with accessories or just the housing?
The K003804 is typically delivered as a bare caliper unit. Optional accessories like sliders, guide pins, and brake pads are available separately. Please specify your requirements during order placement.Can I order this caliper with export documentation?
- Commercial invoice
- HS code and detailed packing list
- Certificate of origin (on request)
- OEM authenticity confirmation
Do you offer warranty and after-sales support?
Yes. The K003804 includes a 12-month manufacturer's warranty. Our technical team supports you with fitment checks, installation tips, and defect handling if needed.How can I place a wholesale order?
Contact us by phone or WhatsApp for live pricing, stock availability, and export scheduling. We support resellers, workshops, and international fleets with genuine Knorr-Bremse braking systems.AAA Trading Dubai – Auto Parts Wholesalers Phone: +971 50 443 1871 Email: sales@triple-a-trading.com
Related products
Knorr Bremse Four Circuit Protection Valve K002435N50 – Mercedes
K002435N50, K 002 435 N50, K.002.435.N50
Buy Wholesale Knorr Bremse Four Circuit Protection Valve K002435N50 - Mercedes Online. The Knorr Bremse Four Circuit Protection Valve K002435N50 is an essential component designed for ensuring optimal safety and efficiency in Mercedes vehicles. Engineered by Knorr Bremse, a renowned leader in the field of braking systems, this protection valve guarantees precise control over the vehicle's braking circuits, enhancing overall performance and reliability. Its robust construction and advanced technology make it an indispensable part of the braking system, providing drivers with peace of mind and confidence on the road.Technical Specifications:
Manufacturer: Knorr Bremse Model: K002435N50 Application: Mercedes vehicles Function: Four circuit protection valve for braking systems Construction: Robust and durable design Compatibility: Designed specifically for Mercedes models Performance: Ensures precise control and safety in braking circuits Reliability: Trusted by automotive professionals for its dependability Compliance: Meets stringent industry standards for quality and safety Installation: Compatible with standard braking system configurations Maintenance: Low maintenance requirements for long-term usability Warranty: Backed by Knorr Bremse's warranty for added assurancePart Number:
Brand: Knorrnorr Bremse Category: Brake System Sub-Category: Brake System Description: Protection Valve Part Number 1: K002435N50 Compatible with: Mercedes MERCEDES OE Number: 0034319706Knorr-Bremse Four Circuit Prot. Valve I73329
I73329, I 73 32 9, I.73.32.9
Product Overview
The Knorr-Bremse Four Circuit Protection Valve I73329 is a critical pneumatic component that ensures the safe and reliable distribution of compressed air to the vehicle’s primary brake circuits. Engineered to protect individual air circuits from pressure failure in other parts of the system, this valve maintains system stability and enhances overall braking safety. Suitable for use in trucks, trailers, and buses, this valve meets stringent OEM and safety standards.Key Features
- OEM Part Number: I73329
- Function: Distributes and protects compressed air circuits (typically four)
- Design: Modular construction for ease of maintenance and replacement
- Material: High-grade aluminum housing with corrosion-resistant finish
- Operating Pressure: Nominal 10 bar system compatibility
- Factory-set pressure thresholds for circuit isolation
- Compact, lightweight design suitable for modern vehicle layouts
- Compliance: Meets ECE R13 and ISO 7638 standards
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Four Circuit Protection Valve (Part No. I73329)
- OEM product packaging with barcode and batch number
- Technical data sheet or installation guide (available on request)
Wholesale Buyer Benefits
- Wholesale pricing and support for fleet operators and resellers
- Stock availability at AAA Trading's Dubai distribution center
- Fast processing for bulk and container shipments
- Support for cross-referencing with OE and aftermarket part numbers
- Reliable logistics and export documentation assistance
Applications and Compatibility
The I73329 Four Circuit Protection Valve is designed for use in:- Heavy-duty trucks, trailers, and buses equipped with air brake systems
- Commercial vehicles from OEMs such as MAN, Volvo, DAF, Mercedes-Benz, Scania, and Renault
- Applications where protection of four separate air brake circuits is required
- Suitable for OEM installation or aftermarket system maintenance
Warranty and Product Authenticity
- 12-month limited manufacturer warranty
- 100% genuine Knorr-Bremse component
- Supplied in factory-sealed packaging with serial tracking
- Fully compliant with OE safety and quality standards
Why Choose AAA Trading Dubai
- Reliable source of genuine European commercial vehicle components
- Strategically located in Dubai for regional and global distribution
- Specialized in Knorr-Bremse air, brake, and pneumatic systems
- Expert support team available for technical queries and sourcing
- Serving clients in the Middle East, Africa, and South Asia
Knorr-Bremse Spring Brake (S-Cam) II37278
II37278, I I3 72 78, I.I3.72.78
Product Overview
The Knorr-Bremse Spring Brake Chamber II37278 is a robust, dual-diaphragm actuator designed for S-Cam air braking systems in heavy-duty trucks and trailers. This component combines service and emergency braking functions, using spring force to apply parking brakes and air pressure to release them. Manufactured to original equipment standards, it ensures safety, reliability, and compliance with international brake regulations.Key Features
- OEM Part Number: II37278
- Function: Spring brake chamber for S-Cam braking systems
- Dual-chamber design: Service and parking/emergency brake in one unit
- High-tensile steel construction with corrosion-resistant coating
- Clamp-band type for easy maintenance and diaphragm replacement
- Stroke length: Typically 2.5" (verify exact application)
- Mounting interface compatible with standard push-rod lengths
- Air inlet ports per ISO 7638 standards
- Tested to meet ECE R13 and SAE J1469 safety requirements
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Spring Brake Chamber (Part No. II37278)
- Factory-sealed OEM packaging with part number label
- Pre-assembled push-rod and return spring (as applicable)
- Safety instructions and technical data sheet available on request
Wholesale Buyer Benefits
- Bulk pricing and stock availability at AAA Trading’s Dubai facility
- Support for fleet maintenance contracts and resellers
- Expert advice on brake system compatibility and installation
- Efficient handling of LCL and FCL shipments worldwide
- Access to Knorr-Bremse product catalog and cross-reference data
Applications and Compatibility
The II37278 Spring Brake is suitable for:- Heavy-duty trucks and trailers using S-Cam drum brake systems
- Vehicles from OEMs such as DAF, MAN, Volvo, Mercedes-Benz, Renault, and Scania
- Standard axle configurations on semi-trailers, tippers, and rigid trucks
- Aftermarket replacements or OEM-specified installations
Warranty and Product Authenticity
- 12-month limited manufacturer's warranty
- 100% genuine Knorr-Bremse component
- Supplied in original packaging with traceable batch code
- Conforms to OE quality and international safety standards
Why Choose AAA Trading Dubai
- Trusted supplier of genuine Knorr-Bremse parts in the Middle East and Africa
- Extensive inventory of braking, pneumatic, and suspension components
- Based in Dubai for strategic export and regional distribution
- Responsive customer support for technical and procurement needs
- Serving workshops, fleets, and trade partners with professionalism and speed
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