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Sitrak VPD71D Steering Shaft Assembly (880,1679-225)
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2025-05-07
Sitrak Right Disc Brake (P20l With Electronic Wear Alarm)
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Sitrak Left Disc Brake (P20l With Electronic Wear Alarm)

Sitrak Left Disc Brake (P20l With Electronic Wear Alarm)
Sitrak Left Disc Brake (P20l With Electronic Wear Alarm)
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What is the Sitrak Left Disc Brake (P20l With Electronic Wear Alarm)

  • Sitrak Left Disc Brake (P20l With Electronic Wear Alarm): Advanced Safety and Performance for Heavy-Duty Vehicles​
  • Engineered for commercial trucks demanding precision stopping power and proactive maintenance, the Sitrak Left Disc Brake (P20l With Electronic Wear Alarm) combines robust mechanical design with intelligent safety technology. Designed for left-side applications, this brake assembly integrates high-quality components like Hexagon head bolts, Spring washers, and a Pressure plate (with electronic wear alarm) to deliver reliable performance, minimal downtime, and compliance with modern safety standards.​
  • Core Components for Efficient Braking​
  • The Caliper body assembly (left), forged from high-strength aluminum alloy, houses the brake mechanism, providing a rigid structure to withstand thermal and mechanical stress during heavy braking. Inside, the Brake block assembly features semi-metallic friction pads bonded to steel backing plates, engineered to generate consistent stopping force while resisting fade at high temperatures. These pads clamp onto the brake disc via the Pressure plate, which incorporates an Electronic Wear Alarm—a sensor that monitors pad thickness and triggers a visual/electronic alert when replacement is needed, enabling proactive maintenance and preventing unsafe brake conditions.​
  • Secure Mounting and Durable Fastening​
  • Hexagon head bolts (grade 10.9, zinc-plated for corrosion resistance) secure the caliper body to the axle bracket, paired with Spring washers to maintain constant clamping force and prevent vibration-induced loosening. This fail-safe fastening system ensures the caliper remains aligned under extreme braking forces, critical for even pad wear and optimal disc contact.​
  • High-Pressure Actuation with Air Chamber​
  • A Front Disc Brake Air Chamber(22″) provides the hydraulic force to activate the caliper, featuring a large-diaphragm design for rapid response and consistent pressure delivery. This air chamber, compatible with Sitrak’s pneumatic systems, ensures smooth brake modulation, reducing driver fatigue and enhancing control during emergency stops or prolonged downhill descents.​
  • Specialized Lubrication for Longevity​
  • To minimize friction and wear in moving parts, the assembly is pre-lubricated with OMEGA 99 (special grease for disc brakes)—a high-temperature, anti-corrosive grease formulated to withstand the harsh conditions of heavy-duty operation. This grease reduces noise, prevents rust in caliper slides, and extends the service life of pivotal components like guide pins and bushings, ensuring maintenance intervals are maximized.​
  • Design for Safety and Ease of Service​
  • The electronic wear alarm system integrates seamlessly with the vehicle’s ECU, providing real-time data to the dashboard for instant diagnostics. The caliper body’s modular design allows quick pad replacement without disassembling the entire assembly, while the air chamber’s dust-resistant boot protects internal components from road debris and moisture. These features make the P20l brake an ideal choice for fleets prioritizing safety, efficiency, and reduced downtime.​
  • SEO-Optimized Features for Commercial Relevance​
  • Keyword Integration: Prioritizes “Sitrak Left Disc Brake”, “Electronic Wear Alarm”, and component names to target exact-match searches for parts replacement and technical specifications.​
  • Technical Benefits: Emphasizes fade resistance, proactive wear monitoring, and specialized lubrication to address fleet managers’ concerns about safety and maintenance costs.​
  • Application Focus: Highlights compatibility with heavy-duty trucks and pneumatic systems, appealing to operators of commercial vehicles that require reliable, high-performance braking solutions.​
  • In summary, the Sitrak Left Disc Brake (P20l With Electronic Wear Alarm) sets a standard for advanced braking technology, combining rugged mechanical components with intelligent safety features. Whether for long-haul trucks, delivery fleets, or industrial machinery, this assembly ensures safe, consistent stops while simplifying maintenance—backed by Sitrak’s commitment to innovation in commercial vehicle safety.

Product Parameters of Sitrak Left Disc Brake (P20l With Electronic Wear Alarm)

AZ4007443010 Clamp Body Assembly (Left)
Serial No.  Drawing No. Name Quantity
1 AZ4007443032 Transmission and adjustment mechanism (left) 1
2 AZ4007443002 Bracket 1
3 WG4007443015 Slide pin protection sleeve compression ring 2
4 WG4007443117 Slide Pin Protective Sleeve 2
5 WG4007443012 Slide pin bushing 3
6 WG4007443014 Short Slide Pins 1
7 Q218B1680TF2 Hexagon socket head cap screws 1
8 WG4007443018 Slide pin cover (short slide pin side) 1
9 WG4007443016 Slide pin cover (long side) 1
10 Q218B1690TF2 Hexagon socket cheese head screws 1
11 WG4007443013 Long slide pins 1

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