- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
The fuel system of a commercial truck is a critical asset that demands protection from contamination, theft, and evaporation. For fleet managers and owner-operators committed to operational security and efficiency, sourcing genuine Dongfeng truck parts is a fundamental practice. The Fuel Tank Cap With Key, precisely identified by the OEM part number 1103010-H0100-HJ, is a vital component that serves as the primary guardian of the fuel tank’s integrity. This genuine DONGFENG cap combines robust physical security with an engineered sealing system to prevent unauthorized access, fuel siphoning, and the ingress of dirt, water, and other contaminants. In an era where fuel costs are significant and fuel quality is paramount, the reliability of the 1103010-H0100-HJ cap directly impacts your bottom line and vehicle reliability. By ensuring a perfect, pressure-rated seal and offering keyed security, this component protects your valuable diesel fuel from theft and spoilage, ensuring that only clean fuel reaches the engine and that your truck remains ready for the road.
Fuel Tank Cap With Key
Крышка топливного бака с ключом
Tapa del Tanque de Combustible con Llave
The DONGFENG Fuel Tank Cap With Key, part number 1103010-H0100-HJ, serves two essential and interconnected purposes: security and sealing. As a security device, it features a robust locking mechanism that requires a dedicated key to open, preventing unauthorized access to the fuel tank. This is a crucial deterrent against fuel theft, which is a significant financial loss risk for truck operators, especially when vehicles are parked overnight or in unsecured areas.
As a sealing component, the 1103010-H0100-HJ cap is engineered to create an airtight and watertight seal on the fuel tank neck. It maintains the proper pressure within the tank’s ventilation system, prevents the escape of fuel vapors (which is both an environmental and safety concern), and blocks the entry of contaminants such as dust, rainwater, and debris. A compromised or missing cap can lead to water contamination in the fuel, which can cause severe damage to the fuel injection system, leading to costly repairs and downtime. Therefore, this cap is a first-line defense for the entire fuel delivery system.
The genuine 1103010-H0100-HJ cap is manufactured from high-quality, durable materials such as reinforced plastic or coated metal alloys, chosen for their resistance to impact, UV degradation, and corrosion from fuel and weather exposure. The locking mechanism is a precision pin-tumbler or disc-detainer system, providing a high level of pick resistance and durability through thousands of locking cycles. Each 1103010-H0100-HJ cap is supplied with two keys, allowing for a spare to be kept in a secure location.
The sealing system is equally sophisticated. It typically incorporates a multi-lip elastomer gasket (often made from fuel-resistant nitrile rubber) that compresses evenly against the tank neck’s sealing surface. This design ensures a consistent seal despite vibration and minor misalignment. Some variants of the 1103010-H0100-HJ also include a pressure-vacuum relief valve integrated into the cap, which allows the tank to breathe safely during fuel consumption and temperature changes without breaking the primary seal against contaminants.
The table below details the comprehensive technical specifications for the genuine DONGFENG Fuel Tank Cap With Key, OEM part number 1103010-H0100-HJ.
| Parameter | Specification / Value |
|---|---|
| OEM Part Number | 1103010-H0100-HJ |
| Product Name | Fuel Tank Cap With Key (Locking Fuel Cap) |
| Brand | DONGFENG |
| Primary Material | High-Strength Plastic Composite or Coated Metal |
| Lock Type | Pin Tumbler or Disc-Detainer Key Lock |
| Seal Material | Fuel-Resistant Nitrile Rubber (NBR) Gasket |
| Pressure Relief | Integrated Pressure-Vacuum Valve (Model Dependent) |
| Thread Compatibility | Specific to DONGFENG fuel tank neck design |
| Included Components | Cap Assembly, Two Keys |
These specifications for the 1103010-H0100-HJ highlight its design as a secure, sealing component. The lock type and seal material are chosen for maximum security and compatibility with diesel fuel, ensuring long-term reliability.
Enhanced Fuel Security and Theft Prevention: The primary benefit of the genuine 1103010-H0100-HJ cap is its ability to deter and prevent fuel theft. The keyed lock requires a unique key, making it difficult for unauthorized individuals to access the tank. This protection is invaluable for fleet vehicles that operate in diverse and sometimes high-risk locations, directly safeguarding a significant operational expense.
Superior Contamination Protection: The precision-engineered seal of the 1103010-H0100-HJ cap ensures that water, dust, and other airborne contaminants cannot enter the fuel tank. Water in diesel fuel is particularly harmful, leading to microbial growth, corrosion of injectors and pumps, and potential engine stalling. By maintaining a clean fuel supply, this cap helps ensure optimal engine performance and prevents expensive fuel system repairs.
Vapor Retention and Environmental Compliance: Modern fuel systems are designed to be closed, preventing the release of hydrocarbon vapors. The 1103010-H0100-HJ cap contributes to this closed system by providing an effective seal. This helps trucks comply with environmental regulations regarding evaporative emissions and also prevents fuel odor around the vehicle.
Durability and Long Service Life: Constructed from robust materials, the 1103010-H0100-HJ cap is built to withstand the rigors of daily use, including exposure to weather, fuel spills, and physical handling. The lock mechanism is designed for repeated use without failure. This durability translates to a lower total cost of ownership, as the cap does not need frequent replacement like inferior, non-genuine alternatives.
The 1103010-H0100-HJ Fuel Tank Cap is engineered for specific DONGFENG truck models and their corresponding fuel tank designs. Compatibility is determined by the thread size and pitch on the tank neck, the overall diameter of the cap, and the required sealing interface. Using the correct OEM part number 1103010-H0100-HJ is essential to ensure a perfect fit that provides both security and an effective seal.
This cap is designed as a direct replacement for lost, damaged, or non-locking original caps. It integrates seamlessly with the vehicle’s fuel system, including any tank venting or vapor recovery lines that may connect to the cap assembly. Never force a cap that does not thread on smoothly, as this can damage both the cap and the tank neck. The genuine 1103010-H0100-HJ guarantees compatibility and preserves the integrity of your fuel system.
Installing the 1103010-H0100-HJ cap is straightforward but requires care. Ensure the fuel tank neck threads are clean and free of debris or old sealant residue. Align the cap properly and screw it on clockwise by hand until it seats firmly. Use the key to lock it by turning the key to the locked position. Do not overtighten the cap using tools, as this can damage the threads or the sealing gasket.
Proper key management is crucial for the security provided by the 1103010-H0100-HJ. Keep one key with the vehicle’s primary key set and store the spare in a secure, accessible location separate from the truck. If keys are lost, the cap may need to be forcibly removed and replaced. Establishing a clear protocol for key handling among drivers and maintenance staff ensures that the security benefits of the 1103010-H0100-HJ are fully realized without causing operational delays.
Every batch of 1103010-H0100-HJ caps undergoes DONGFENG’s stringent quality validation. The locking mechanism is cycled tested thousands of times to ensure smooth operation and resistance to wear. The seal is subjected to pressure and vacuum tests to verify its ability to maintain a leak-proof barrier under simulated tank conditions.
The materials are tested for chemical resistance to diesel fuel and for durability under UV exposure and temperature extremes. Thread dimensions are precision-checked to guarantee compatibility. This comprehensive testing ensures that each 1103010-H0100-HJ cap delivers reliable security and sealing performance from the first use and throughout its service life.
A faulty 1103010-H0100-HJ cap or a generic substitute will exhibit clear warning signs. The most obvious is a loose fit or a cap that does not tighten securely, often indicated by fuel fumes or a slight diesel odor near the tank. Difficulty in locking or unlocking the cap suggests internal mechanism wear or damage. A cracked or visibly damaged housing compromises both security and sealing.
More subtle symptoms relate to fuel system issues. Repeated water contamination in fuel filters, unexplained loss of fuel (evaporation or minor siphoning), or the illumination of a “Check Engine” light due to an evaporative emissions system leak can all be traced back to an ineffective fuel cap. If the original 1103010-H0100-HJ cap is lost, replacing it with the genuine part is critical to restore system integrity.
Regular maintenance of the 1103010-H0100-HJ cap is simple but essential. During refueling or pre-trip inspections, visually inspect the cap for cracks, damage, or a worn sealing gasket. Clean the cap’s threads and the tank neck periodically with a clean, dry cloth to prevent grit from compromising the seal or damaging the threads.
Test the lock mechanism regularly to ensure it operates smoothly. Apply a small amount of graphite lock lubricant to the keyway if necessary, but avoid oil-based lubricants that can attract dirt. Check that the seal is pliable and not hardened or cracked; replace the cap if the seal is degraded. Proper care of the 1103010-H0100-HJ ensures it continues to provide maximum security and protection for your fuel investment.
Choosing the genuine 1103010-H0100-HJ cap is a decision for guaranteed security, fit, and material compatibility. The OEM part is precision-engineered to match the tank neck threads perfectly, ensuring an optimal seal that maintains fuel system pressure integrity. Its lock is of a higher quality with more unique key combinations, offering better theft deterrence.
Aftermarket locking caps often use generic threads that may not seal properly, leading to vapor leaks and potential water ingress. Their locks are frequently of lower quality, with simpler mechanisms that are easier to pick or break. The materials may not be fully resistant to diesel or UV light, leading to premature cracking. The minimal cost saving is insignificant compared to the risk of fuel theft or contamination. The genuine 1103010-H0100-HJ provides peace of mind and reliable performance.
The 1103010-H0100-HJ fuel cap is one element of a comprehensive fuel system protection plan. Its role is supported by other genuine DONGFENG components such as high-efficiency fuel filters, water separators, and secure tank mounting hardware. Regularly draining water from filter assemblies and using fuel from reputable sources further enhances system cleanliness.
Incorporating a check of the 1103010-H0100-HJ cap’s condition and security into routine vehicle inspections is a best practice. This holistic approach—combining physical security, contamination control, and preventative maintenance—ensures the fuel system remains reliable, efficient, and protected from both malicious and environmental threats, maximizing uptime and minimizing total operating costs.
The DONGFENG Fuel Tank Cap With Key, part number 1103010-H0100-HJ, is a quintessential example of a small component with a disproportionately large impact on operational security and vehicle health. It stands as a dedicated sentry for your fuel supply, preventing theft and safeguarding against contamination that can lead to catastrophic engine damage.
For cost-aware fleet managers, security-conscious owner-operators, and professional maintenance teams, specifying the genuine 1103010-H0100-HJ is a non-negotiable standard. It represents a minimal upfront cost that provides maximum protection for a significant operational asset—your fuel. By choosing this exact OEM part, you invest in peace of mind, reduced risk, and the long-term reliability of your DONGFENG truck’s fuel system, ensuring every drop of fuel powers your journey safely and efficiently.
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.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
