Product Introduction

This Rear Wheel Brake Caliper, R AZ4007444220 is a heavy-duty OEM right rear brake caliper for heavy-duty trucks and commercial vehicles. It features a robust cast iron housing, precision-machined piston bores, and integrated spring return mechanisms, engineered to deliver reliable, consistent braking force in heavy-load operations.

Performance

• High-Strength Casting: This heavy-duty right rear brake caliper is cast from high-grade gray iron, offering exceptional resistance to thermal cracking, warping, and fatigue under extreme braking forces as a high performance rear brake caliper.

• Precision Machining: The precision-ground piston bores ensure smooth, uniform clamping force, eliminating uneven wear and maintaining consistent braking performance.

• Integrated Spring Return: Built-in return springs ensure prompt retraction of brake pads, reducing drag and extending service life in harsh undercarriage environments, making it a reliable replacement right rear brake caliper.

• Vehicle Specific Compatibility: Optimized for heavy-duty truck rear disc brake systems, it is ideal as a right rear brake caliper for commercial vehicles.

Core Function

1. Converts hydraulic pressure into clamping force to engage rear brake discs, a critical part of heavy duty truck brake parts.

2. Ensures uniform force distribution across brake pads, preventing uneven wear and maintaining consistent braking performance under heavy loads and long downhill runs.

3. Resists thermal fatigue and deformation, ensuring reliable operation over millions of braking cycles.

4. Fully OEM-compatible for seamless replacement, restoring the clamping function of the right rear brake system.

Rear Wheel Brake Caliper, R AZ4007444220 – Sinotruk Sitrak OEM Right Rear Brake Caliper

When your heavy-duty fleet demands uncompromising braking power, every component matters. This Rear Wheel Brake Caliper, R AZ4007444220 is purpose-built for Sinotruk Sitrak trucks, delivering the kind of reliable, consistent stopping force that keeps drivers safe and operations running smoothly. Engineered with a robust cast iron housing and precision-machined piston bores, this right rear brake caliper doesn’t just meet OEM standards — it embodies them. Whether you’re sourcing for fleet maintenance or large-scale assembly projects, Mettlead brings you factory-direct quality at competitive pricing, so you never have to compromise between performance and budget.

Key Features and Benefits of the AZ4007444220 Rear Wheel Brake Caliper

This isn’t just another replacement part sitting on a shelf. Every detail of this rear wheel brake caliper has been engineered to perform under the most demanding conditions that heavy commercial vehicles face daily.

• OEM-Grade Cast Iron Housing: Built to withstand extreme thermal cycling and mechanical stress, the heavy-duty cast iron body resists warping and cracking even under sustained high-temperature braking scenarios.
• Precision-Machined Piston Bores: Tight-tolerance machining ensures smooth, consistent piston travel, which translates directly into predictable brake pedal feel and uniform pad wear across the caliper surface.
• Integrated Spring Return Mechanism: The built-in return springs guarantee that pistons retract cleanly after each braking event, reducing residual drag, minimizing unnecessary pad wear, and improving overall fuel efficiency.
• Corrosion-Resistant Surface Treatment: A protective coating shields the caliper from road salt, moisture, and debris — extending service life significantly in harsh operating environments.
• Direct Bolt-On Fitment: Designed as a precise OEM replacement, this caliper installs without modifications, reducing workshop downtime and labor costs during maintenance windows.
• Consistent Braking Force Distribution: Engineered to deliver balanced clamping pressure across the brake disc, ensuring stable deceleration even under full-load conditions.

In short, this caliper helps you maintain fleet uptime, reduce long-term maintenance costs, and — most importantly — keep your vehicles stopping safely every single time.

Technical Specifications

Accurate specifications matter when you’re sourcing brake system components for heavy-duty applications. Here’s exactly what you’re getting with this rear wheel brake caliper:

Application Scenarios

Understanding exactly where and how this part fits into your operations helps you make confident purchasing decisions. The Rear Wheel Brake Caliper R AZ4007444220 is specifically designed for the following applications:

• Compatible Vehicles: Sinotruk SITRAK heavy-duty truck series (C7H, C5H, and related platforms)
• Position: Right rear wheel braking assembly
• System: Hydraulic/pneumatic disc braking system
• Use Cases:
  • New Vehicle Assembly: OEM-line installation for truck manufacturers and assembly plants
  • Scheduled Maintenance: Planned replacement during routine brake system servicing intervals
  • Fault Replacement: Emergency swap-out when existing calipers show signs of seizure, leakage, or uneven braking
  • Fleet Overhaul: Bulk replacement programs for logistics and transportation companies managing large Sitrak fleets

Looking for more Sitrak braking components? Browse our complete Braking System Parts catalog, or explore the full Sitrak Heavy-Duty Parts range. You can also find a comprehensive overview in our Sinotruk Sitrak Truck Parts Full Category Guide.

OEM/ODM Capabilities

At Mettlead, we understand that different markets have different requirements. That’s precisely why we offer flexible customization options alongside our standard OEM-equivalent products:

• White-Label Packaging: Receive products in neutral packaging, ready for your own branding and distribution channels — ideal for distributors building their own aftermarket brand identity.
• Custom Packaging Solutions: Need your company logo, part numbers, or specific labeling on every box? We handle that seamlessly, so your products arrive shelf-ready.
• Strict Quality Control: Every single caliper undergoes dimensional inspection, pressure testing, and surface quality checks before it leaves our facility. We don’t ship parts that we wouldn’t trust on our own vehicles.
• Factory-Direct Pricing: By eliminating middlemen, we pass genuine cost savings directly to you — without sacrificing quality or reliability.
• Bulk Order Flexibility: Whether you need 10 units or 10,000, our production capacity scales to match your procurement schedule.

Furthermore, we welcome international buyers to visit our facilities for on-site inspection. Seeing our quality processes firsthand gives you the confidence to build a long-term supply partnership.

Frequently Asked Questions (FAQ)

Is this Rear Wheel Brake Caliper AZ4007444220 an original OEM part or aftermarket?

This caliper is manufactured to OEM-equivalent specifications, meaning it matches the exact dimensions, material composition, and performance characteristics of the original Sinotruk Sitrak factory part. It serves as a direct, bolt-on replacement without any fitment modifications required.

Which specific Sitrak truck models does this right rear brake caliper fit?

The AZ4007444220 rear wheel brake caliper is designed for the Sinotruk Sitrak heavy-duty truck platform, including C7H and C5H series models equipped with disc brake systems on the rear axle. If you’re unsure about compatibility with your specific configuration, our team can verify fitment based on your VIN or chassis number.

How can I tell if my existing rear brake caliper needs replacement?

Common signs include uneven brake pad wear on the right rear wheel, brake fluid leakage around the caliper body, the vehicle pulling to one side during braking, unusual grinding or squealing noises, or visible piston seizure when the caliper is inspected. If you notice any of these symptoms, prompt replacement prevents further damage to discs and other braking components.

What is the expected service life of this brake caliper under normal operating conditions?

Under standard heavy-duty operating conditions with proper maintenance, this caliper is engineered to deliver reliable performance throughout the typical brake system service interval. Actual lifespan depends on load frequency, operating environment, and maintenance practices. Regular inspection during scheduled servicing helps maximize longevity.

Can I order just the right side, or must I replace both rear calipers simultaneously?

You can absolutely order the right rear caliper (AZ4007444220) individually. However, if both calipers have similar mileage and one has failed, many fleet managers choose to replace both sides simultaneously to maintain balanced braking performance and avoid a second maintenance event shortly after.

Do you offer the corresponding left rear brake caliper as well?

Yes, Mettlead supplies the complete range of Sitrak braking system components, including the left rear counterpart. Contact our team for the matching left-side part number and availability.

Ready to Secure Your Supply? Get a Quote Today

Every day without reliable brake components in stock is a day your fleet faces unnecessary risk. Don’t let supply chain delays compromise safety or uptime.

Here’s what happens when you reach out:

1. You send us your quantity requirements and delivery timeline.
2. We respond within 24 hours with competitive factory-direct pricing.
3. We confirm stock availability and arrange flexible, secure payment terms.
4. Your parts ship quickly via reliable international logistics channels.

Whether you need a single unit for an urgent repair or a bulk order for quarterly restocking, Mettlead is your dependable partner for Sinotruk Sitrak brake system parts.

Contact Us Now
to request pricing on the Rear Wheel Brake Caliper R AZ4007444220 — our team is standing by to support your procurement needs.