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Genuine Sinotruk HOWO 080V03901-0378 Cylinder Head Gasket
This OEM-quality cylinder head gasket (Part No: 080V03901-0378) is precision-engineered to exact Sinotruk specifications for optimal engine performance and reliability. Designed for WD615 and D12 series engines, it provides a perfect seal between the cylinder head and engine block, preventing compression loss, coolant leaks, and oil contamination. The multi-layer steel construction ensures durability under extreme temperature fluctuations and high-pressure conditions common in heavy-duty truck operations.
Technical Specifications:
Material: Multi-layer steel (MLS) with rubber coating
Thickness: 1.65mm
Bore Diameter: 126mm
Temperature Resistance: -40°C to +300°C continuous
Pressure Rating: Withstands combustion pressures up to 200 bar
Compatibility: WD615.92, WD615.95, WD615.99, D12.38, D12.42 engines
Surface Coating: Viton rubber sealing beads around combustion chambers
Manufacturing Standard: ISO 9001 certified, OEM specifications
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Installation Guidelines for 080V03901-0378 Cylinder Head Gasket:
Pre-Installation Checklist:
Surface Preparation: Ensure both cylinder head and block surfaces are perfectly clean, flat, and free from old gasket material
Flatness Check: Verify cylinder head flatness (max 0.1mm warpage across entire surface)
Component Inspection: Check head bolts for stretching and replace if necessary
Cleanliness: All debris must be removed from bolt holes and coolant passages
Installation Steps:
Positioning: Place gasket on block with correct orientation (part number facing up)
Lubrication: Apply light oil to head bolt threads and washers
Torque Sequence: Follow Sinotruk's specific torque pattern in three stages:
First pass: 50 Nm in proper sequence
Second pass: 90 Nm in same sequence
Final pass: Additional 90° angular turn
Coolant System: Refill with proper coolant mixture and bleed air from system
Initial Operation: Run engine at idle until operating temperature reached, then retorque head bolts after cool-down
