Corehole Plug OEM 90003989480 Cup plug for SINOTRUK HOWO Spare Parts

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.

Company profile

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.

 Guangzhou Haifeng Auto Parts Co., Ltd., we are more than a manufacturer; we are architects of automotive reliability. With a rich heritage of production expertise, we specialize in creating high-performance rubber components that form the backbone of modern vehicle systems. Our operational philosophy is built on the powerful synergy of advanced technology and meticulous quality assurance.

Our state-of-the-art, automated production lines ensure unparalleled precision and consistency across every product batch. This technological prowess is matched by a stringent, multi-stage quality control system. Before any component earns the Haifeng name, it undergoes a rigorous validation process, including tests for dimensional accuracy, thermal resilience, abrasion resistance, and seal integrity. This uncompromising commitment guarantees that every part leaving our facility meets and exceeds the highest industry standards.

Guided by the principle of "Quality for Survival, Technology for Development," we have earned the trust of leading automobile manufacturers. Our components are integral to the performance of critical systems, including suspension, braking, and transmission. Looking forward, Haifeng Auto Parts is dedicated to pioneering advancements in our field, continuously elevating our product quality and technological capabilities to become the industry's premier supplier of high-performance automotive rubber solutions.