Corehole Plug OEM 90003989480 Cup plug for SINOTRUK HOWO Spare Parts

Seal your engine block with precision and confidence using our OEM-quality Corehole Plug (Part No. 90003989480). Also known as a cup plug or freeze plug, this small but essential component plays a critical role in maintaining the integrity of your Sinotruk HOWO engine. It is designed to perfectly seal the sand-casting core holes in the engine block, preventing coolant leaks and protecting the engine from catastrophic damage due to overheating.

Full Range of Core Plugs Available

To support comprehensive engine maintenance and rebuilds, we offer a complete range of core plugs for various applications on Sinotruk engines. In addition to our featured part 90003989480, we also supply the following related part numbers:

• 90003989204

• 90003989289

• 90003982121

• 90003989215

• 90003989288

• 90003984080

Please contact our sales team with your specific part number or engine model to ensure you receive the correct component for your needs.

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Our Manufacturing Philosophy

Our operational strength lies in the synergy of advanced technology and meticulous quality assurance. Our fully automated production lines ensure unparalleled precision, while our commitment to quality is absolute.

An Uncompromising Commitment to Quality

Before any component leaves our facility, it undergoes a rigorous validation process to guarantee it exceeds the highest industry standards. This includes comprehensive testing for:

• Dimensional Accuracy & Fitment
• Thermal Resilience & Durability
• Abrasion & Wear Resistance
• Seal & System Integrity

This uncompromising approach ensures that every Haifeng part delivers the performance and longevity you demand.