SINOTRUK HOWO Brake Camshaft 199100440001 Genuine Left-Hand Side Spare Part

Part Name: Genuine SINOTRUK HOWO Left Brake Camshaft  
OEM Number: 612600060548 / 612600060547 (Common Variants)  
Application Vehicle: SINOTRUK HOWO Series Heavy-Duty Trucks (e.g., HOWO A7, HOWO T7H)  
Axle Position: Front Axle or Rear Axle – Left Side (Driver’s Side in LHD Configuration)  
Function: Converts linear motion from brake chamber pushrod into rotational movement to actuate brake shoes via slack adjuster and S-cam design  
 
Design Type: S-Cam (S-shaped Camshaft) – Asymmetric profile for optimal shoe spreading force  
Material: High-Strength Alloy Steel with Surface Hardening Treatment  
Surface Treatment: Carburizing & Quenching for Enhanced Wear Resistance  
Hardness: HRC 58–63 (Working Surface), Ensuring Durability under Repeated Friction  
 
Compatibility:  
- Fits models equipped with Jost-type or SINOTRUK proprietary drum brake systems  
- Commonly used in 6x4, 8x4 configurations with multi-axle braking circuits  
- Matches standard 30mm or 32mm diameter input spline connection from slack adjuster  
 
Performance Features:  
- Precision-ground cam profile ensures even brake shoe contact and reduced lining wear  
- Dynamic balance tested to prevent vibration during high-speed operation  
- Sealed bearing housing interface prevents dust and moisture ingress in harsh environments  
 
Installation Notes:  
- Always replace in pairs (left & right) if excessive wear is detected on one side  
- Lubricate camshaft lobes with high-temperature molybdenum-disulfide grease during assembly  
- Align timing marks (if present) to maintain synchronized brake engagement  
 
Warranty: Typically 12 Months or 100,000 km under normal operating conditions  
 
Remarks: Critical safety component—must be inspected regularly for scoring, pitting, ovality, or torsional deformation. Use only genuine spare parts to ensure system reliability and compliance with commercial vehicle safety regulations.