Sinotruk HOWO Engine Cylinder Head Assembly 082-03100-6274 – OEM Quality Replacement Part

Product Description: Sinotruk HOWO Cylinder Head Assembly 082-03100-6274 

Upgrade your Sinotruk HOWO truck’s performance with this high-quality Cylinder Head Assembly (Part No. 082-03100-6274) — a direct OEM-equivalent replacement designed for durability, precision fit, and optimal engine efficiency.

 Manufactured using premium-grade cast iron alloy, this cylinder head ensures excellent heat dissipation and long-term reliability under extreme operating conditions. It is fully compatible with Sinotruk WD615 series engines, commonly used in HOWO A7, T5G, T7H, and Sitrak models. 

This assembly comes pre-tested and ready for installation, reducing downtime and maintenance costs. Whether you're repairing or upgrading your fleet, this cylinder head delivers consistent power output and improved combustion efficiency.

Technical Specifications

 Part Number： 082-03100-6274  

OEM Number： 082031006274 / WG12031006274  

Application： Sinotruk HOWO Trucks (A7, T5G, T7H, Sitrak C7H/C9H) 

Engine： Model WD615.62 / WD615.77 / WD615.87  

Material： High-Strength Cast Iron Alloy  

Cylinders ：6-Cylinder Inline  

Valve Configuration： OHV (Overhead Valve), 2 Valves per Cylinder  

Surface Finish ：Precision Ground for Perfect Gasket Seal  

Includes： Intake & Exhaust Ports, Valve Guides, Seals, Pre-installed Rocker Shaft Mounts 

Certification： ISO9001, CNHTC Standard  

Condition ：100% New, Factory Tested  

Warranty ：12 Months or 100,000 km (whichever comes first)  

Origin China ：(CNHTC Authorized Production Line) 

Packaging： Neutral Export Carton + Wooden Crate (Optional)

Installation Guidelines for Cylinder Head Assembly 082-03100-6274: 

1. Drain Coolant & Oil: Before removal, drain the engine coolant and oil to prevent contamination.

2. Remove Ancillary Components: Detach radiator hoses, intake manifold, exhaust manifold, fuel injectors, and valve cover. 

3. Unbolt Old Cylinder Head: Loosen head bolts in reverse firing order (typically spiral pattern from outer edges inward). 

4. Clean Block Surface: Inspect and thoroughly clean the engine block surface; ensure no debris or old gasket residue remains. 

5. Install New Head Gasket: Use genuine or high-compression multi-layer steel (MLS) gasket. 

6. Mount New Cylinder Head: Align carefully and install evenly. Torque head bolts gradually in 3–4 stages following manufacturer specs: ◦ Stage 1: 60 Nm ◦ Stage 2: 120 Nm ◦ Stage 3: Final angle tightening: 90° + 90° (plastic region bolt stretching)   

7. Reconnect All Lines & Sensors: Reattach fuel lines, wiring harnesses, EGR system, turbocharger pipes. 

8. Refill Fluids & Test Run: Refill coolant and oil. Start engine and check for leaks, abnormal noises, or pressure issues. 

9. Monitor Performance: Run engine at idle for 10 minutes, then conduct road test under load.