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Genuine Sinotruk HOWO 082-03100-6274 Cylinder Head Assembly
This authentic Sinotruk HOWO cylinder head assembly (Part No: 082-03100-6274) is engineered to exact OEM specifications, ensuring optimal engine performance and longevity for HOWO trucks. Designed for heavy-duty applications, it integrates critical components like valves, springs, and camshafts to manage combustion efficiency, heat dissipation, and gas flow under extreme conditions. The high-strength aluminum alloy construction ensures lightweight durability and superior thermal management, making it a essential replacement for engine overhauls and repairs.
Technical Specifications:
Material: High-grade aluminum alloy (T6 heat-treated)
Compatibility: HOWO A7, T7H series with WEICHAI WP10/WP12 engines
Valve Configuration: 4 valves per cylinder (intake and exhaust)
Combustion Chamber Volume: 98 ± 2 cc
Surface Finish: Precision-machined (Ra ≤ 0.8 μm)
Temperature Resistance: -40°C to +300°C
Pressure Tolerance: Up to 200 bar (combustion pressure)
Weight: 48 ± 1 kg (fully assembled)
Manufacturing Standard: ISO 9001 certified, OEM tolerances
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Installation Notes
Pre-Installation Checklist:
1.Inspect Components: Verify part number (082-03100-6274) and check for shipping damage.
2.Clean Surfaces: Ensure engine block and head mating surfaces are free of debris and old gasket material.
3.Lubrication: Apply engine oil to valve stems and camshaft bearings before installation.
Installation Steps:
1.Gasket Placement: Position a new head gasket on the engine block, aligning with bolt holes.
2.Head Positioning: Carefully lower the cylinder head onto the block, ensuring no movement disrupts the gasket.
3.Bolt Torque: Tighten head bolts in the manufacturer’s specified sequence and stages:
First pass: 50 Nm
Second pass: 90 Nm
Final pass: Additional 90° angular turn
4.Valve Clearance: Adjust valve lash to 0.25–0.30 mm (cold engine) using feeler gauges.
Critical Warnings:
Never reuse old head bolts or gaskets.
Check engine block flatness (max 0.1 mm warpage) before installation.
Prime oil system before startup to prevent dry operation.
Post-Installation:
Run engine at idle and monitor for leaks or unusual noises.
Re-torque head bolts after first 500 km of operation.
