- ADDRESS:Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The FG610Y001609+004/1 Oil Filler Cap Assembly is a critical component that ensures the integrity of your engine’s lubrication system. As a trusted provider of genuine Sinotruk Homan parts, we have engineered this oil filler cap to deliver a perfect seal, preventing oil leaks and contamination ingress while maintaining proper crankcase pressure. The FG610Y001609+004/1 model is specifically designed for SINOTRUK Homan heavy-duty engines, offering a durable, heat-resistant construction that withstands the most demanding operating environments. With its precision-molded sealing surface and robust bayonet locking system, this assembly ensures that your engine oil stays clean and at the correct level, reducing the risk of sludge formation and premature wear.
OEM direct replacement • 100% leak-proof seal • High-temperature resistant polymer
The FG610Y001609+004/1 Oil Filler Cap Assembly is manufactured from high-grade engineering polymer that exhibits excellent resistance to engine oil, heat, and vibration. Its integrated O-ring seal provides a positive, leak-free closure that prevents oil from splashing out during operation and stops dirt, dust, and moisture from entering the crankcase. This assembly also features an integrated pressure-relief valve (where applicable) that maintains the optimal internal pressure, reducing oil aeration and improving lubrication efficiency. The FG610Y001609+004/1 is a direct replacement for the original equipment, ensuring a perfect fit on SINOTRUK Homan engines.
By choosing the FG610Y001609+004/1, you are ensuring that your engine’s oil filler neck remains securely capped, eliminating the risk of oil contamination and loss. This simple yet vital component plays a significant role in maintaining oil quality, which directly affects engine performance, fuel economy, and longevity. With its robust design and precise engineering, this oil filler cap assembly provides peace of mind for both fleet operators and individual owners.
The FG610Y001609+004/1 Oil Filler Cap Assembly is specifically designed for SINOTRUK Homan engines found in heavy-duty trucks such as the Howo A7, T7H, and the Homan series, covering Euro II to Euro VI emission standards. It is also compatible with many other diesel engines that utilize a standard 1-1/4 inch bayonet-style filler neck. This wide compatibility makes the FG610Y001609+004/1 an ideal stocking item for fleets with mixed vehicle types, reducing inventory complexity.
Beyond on-highway trucks, this oil filler cap assembly is also used in construction equipment, agricultural tractors, and stationary power units that are powered by SINOTRUK Homan engines. Its robust design and reliable sealing performance make it suitable for the most demanding environments, including dusty construction sites, humid coastal regions, and extreme cold climates. By using the FG610Y001609+004/1, you ensure consistent sealing performance across your entire equipment portfolio.
Installing the FG610Y001609+004/1 is a simple process that requires no special tools. Ensure the engine is cool and the oil filler neck is clean and free from debris. Remove the old cap by turning it counterclockwise (usually ¼ turn) and lift it off. Align the tabs on the new FG610Y001609+004/1 cap with the slots in the filler neck, push down firmly, and turn clockwise until you feel a positive stop and hear a click – this indicates that the bayonet lock is fully engaged. Always check that the O-ring is seated properly and that the cap fits snugly.
Periodic inspection of the FG610Y001609+004/1 is recommended, especially during oil changes. Inspect the O-ring for cracks, hardening, or deformation, and replace the cap if the seal shows signs of wear. A worn seal can lead to oil leaks, contamination, and pressure loss. With proper care, the FG610Y001609+004/1 will provide years of reliable service. Its durable materials resist oil degradation and thermal aging, making it a long-lasting solution for your engine’s oil filler needs.
Every FG610Y001609+004/1 oil filler cap assembly is manufactured under strict ISO 9001 quality standards. We use only high-grade engineering plastics and precision-molded sealing components that are tested for dimensional accuracy, thermal stability, and chemical resistance. Each unit undergoes a 100% visual inspection and leak-testing to guarantee that it meets the same exacting specifications as the original OEM part.
In addition, we perform accelerated life-cycle testing that simulates tens of thousands of open-close cycles under extreme temperature conditions. This ensures that the FG610Y001609+004/1 maintains its locking force and sealing integrity over the long term, even with frequent oil checks and changes. When you choose this oil filler cap assembly, you are choosing a component that has been validated to deliver reliable performance and durability, giving you total confidence in your engine’s protection.
The FG610Y001609+004/1 Oil Filler Cap Assembly is a small yet indispensable component that plays a vital role in maintaining engine cleanliness and performance. Its precision-engineered seal prevents costly oil leaks and stops harmful contaminants from entering the lubrication system, directly contributing to extended engine life and reduced maintenance costs. By investing in the FG610Y001609+004/1, you are making a smart, proactive choice to protect your valuable SINOTRUK Homan engine.
Fleet operators will appreciate the reduced risk of oil-related issues and the simplicity of maintenance that this cap assembly provides. Owner-operators will gain peace of mind knowing that their engine is sealed against the elements and that oil integrity is preserved between changes. The FG610Y001609+004/1 is a testament to the quality and reliability that defines SINOTRUK Homan genuine parts.
Upgrade your engine protection with the FG610Y001609+004/1 Oil Filler Cap Assembly – the reliable, durable, and cost-effective solution for your SINOTRUK Homan truck. Experience the difference that a properly sealed oil system can make in your daily operations. With its proven performance and uncompromising quality, the FG610Y001609+004/1 is the definitive choice for professional-grade engine care.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.