F01-5401900-DY
Product Details
Comprehensive Professional Description: Chery Jetour X70 Fuel Cap (Part No. F01-5401900-DY)
1. Basic Overview & Core Functional Positioning
The F01-5401900-DY Fuel Cap is a genuine Original Equipment Manufacturer (OEM) component exclusively developed and produced by Chery Automobile Group, specifically tailored for the Chery Jetour X70 mid-size SUV—a model celebrated for its practicality, reliability, and adaptability in both urban commuting and long-distance travel. As a critical component of the vehicle’s fuel system, this fuel cap is mounted on the fuel filler neck, located on the right rear side of the Jetour X70’s body (behind the rear wheel), serving as the primary protective barrier for the vehicle’s fuel tank. Its core functions include sealing the fuel tank to prevent fuel leakage, blocking the entry of dust, rainwater, and other contaminants, maintaining fuel pressure stability, and ensuring fuel safety during driving, refueling, and parking. Unlike generic aftermarket fuel caps, the F01-5401900-DY is precision-engineered to match the Jetour X70’s fuel system specifications, ensuring seamless integration and reliable performance, which is vital to the vehicle’s overall fuel efficiency and driving safety.
The F01-5401900-DY Fuel Cap operates through a simple yet effective mechanical sealing mechanism, designed to work in tandem with the Jetour X70’s fuel filler neck and fuel system. When refueling is complete, the cap is manually screwed onto the fuel filler neck until a distinct “click” sound is heard—indicating that the cap is fully tightened and the seal is properly engaged. This tight seal prevents gasoline vapor from escaping (which helps reduce fuel waste and environmental pollution) and prevents external contaminants from entering the fuel tank, which could otherwise clog the fuel filter, damage the fuel pump, or affect engine performance. Additionally, the fuel cap is integrated with the vehicle’s fuel system pressure relief valve, which automatically adjusts the internal pressure of the fuel tank: when the internal pressure exceeds the safe range (due to high temperatures or other factors), the valve opens to release excess pressure; when the pressure is too low, the valve allows air to enter, ensuring smooth fuel supply to the engine. The Jetour X70’s fuel cap also features a built-in retaining strap, which prevents the cap from being misplaced or dropped during refueling—a practical design detail that enhances user convenience.
The part number F01-5401900-DY serves as a unique identifier for this fuel cap, distinguishing it from fuel caps used in other Chery or Jetour models (such as the Jetour X90, Chery Tiggo 7, or Chery Arrizo 8) and even different variants of the Jetour X70 equipped with alternative fuel systems. These models feature different fuel filler neck sizes, thread specifications, and pressure relief parameters, making their fuel caps non-interchangeable. As a genuine OEM component, the F01-5401900-DY strictly complies with Chery’s original design standards, material requirements, and performance specifications, while also adhering to international automotive quality standards (ISO 9001, IATF 16949) and national automotive safety standards (GB 18296-2019). Every dimension, thread pitch, and sealing parameter is precision-engineered to perfectly match the Jetour X70’s fuel filler neck and fuel system, ensuring a tight seal and stable performance. Unlike low-quality aftermarket fuel caps that often suffer from poor sealing, pressure relief failure, or premature wear, the genuine F01-5401900-DY undergoes rigorous testing and validation to ensure reliability, durability, and consistent performance, making it the preferred choice for Jetour X70 owners and professional automotive repair technicians.
2. Premium Material Selection & Precision Manufacturing Process
The Chery Jetour X70 F01-5401900-DY Fuel Cap is crafted from high-performance, automotive-grade materials, carefully selected by Chery’s engineering team to withstand the harsh operating conditions it faces—including exposure to extreme temperatures (ranging from -40°C to 120°C), direct sunlight, rainwater, road salt, gasoline vapor, and frequent mechanical wear from repeated opening and closing. The team prioritizes materials that balance mechanical strength, corrosion resistance, sealing performance, and chemical stability (to resist damage from gasoline and fuel additives), ensuring the fuel cap maintains stable performance over a service life of typically 100,000–150,000 kilometers under normal operating conditions (depending on usage frequency and maintenance habits).
The main body of the F01-5401900-DY Fuel Cap is made of high-strength engineering plastic (PA66+30% glass fiber), a premium automotive-grade material renowned for its excellent mechanical strength, impact resistance, and dimensional stability. This composite material offers superior tensile strength (minimum 280 MPa) and flexural strength (minimum 450 MPa), ensuring the cap can withstand accidental impacts (such as being hit by a tool during refueling) without cracking or deformation. It also exhibits excellent heat resistance and chemical stability, remaining intact and functional even when exposed to high temperatures (e.g., direct sunlight in summer) and gasoline vapor, which can degrade low-quality plastics over time. The surface of the cap is treated with a matte anti-scratch coating, which not only enhances its aesthetic appearance but also prevents scratches, fingerprints, and fading, keeping the cap looking new for a long time.
The sealing component of the fuel cap—a critical part that ensures a tight seal between the cap and the fuel filler neck—is made of high-quality nitrile rubber (NBR), a material widely used in automotive fuel system components due to its excellent oil resistance, heat resistance, and sealing performance. The nitrile rubber seal is designed as a circular O-ring, precisely sized to fit the inner groove of the fuel cap, ensuring maximum contact with the fuel filler neck and preventing fuel leakage and vapor escape. This rubber seal can withstand the corrosive effects of gasoline, diesel, and fuel additives, maintaining its elasticity and sealing performance even after long-term use. Additionally, the fuel cap’s thread structure is made of the same engineering plastic as the main body, with precision-machined threads that ensure smooth screwing and unscrewing, while also providing sufficient torque resistance to prevent the cap from loosening during driving.
The manufacturing process of the F01-5401900-DY Fuel Cap follows a strict, ISO 9001 and IATF 16949 certified production workflow, consistent with Chery’s global quality standards and advanced precision manufacturing practices. The production process begins with the injection molding of the fuel cap main body and thread structure, using high-precision injection molding machines to ensure uniform material density and precise dimensional accuracy, eliminating defects such as burrs, cracks, or uneven surfaces. After molding, the main body undergoes a series of post-processing steps, including deburring, surface polishing, and anti-scratch coating treatment, which enhance the cap’s appearance and durability. The nitrile rubber seal is manufactured separately using a compression molding process, ensuring consistent thickness and elasticity, and is then precision-assembled into the fuel cap’s inner groove.
The entire fuel cap undergoes rigorous quality control testing, including sealing performance testing (fuel leakage test, vapor tightness test), mechanical performance testing (impact resistance, torque resistance, thread strength), environmental testing (high and low temperature resistance, humidity resistance, corrosion resistance), and pressure relief performance testing. The sealing test ensures that the cap does not leak fuel or vapor even under a pressure of 0.1–0.3 MPa, meeting Chery’s strict sealing requirements. The pressure relief test verifies that the built-in valve opens and closes at the specified pressure range (0.02–0.05 MPa), ensuring stable fuel tank pressure. Additionally, the fuel cap is tested for chemical resistance, ensuring it is not damaged by gasoline, diesel, or fuel additives. Only fuel caps that pass all these tests are allowed to leave the factory, ensuring the F01-5401900-DY series delivers reliable, long-lasting performance in the Jetour X70’s fuel system.
3. Structural Composition & Key Design Features
The Chery Jetour X70 F01-5401900-DY Fuel Cap features a precision-engineered, user-friendly structural design, tailored to the specific requirements of the Jetour X70’s fuel system and user refueling habits. Its structural composition is optimized to ensure a tight seal, easy operation, and long-term durability, with key design features that address the unique challenges of fuel cap performance—especially in terms of sealing reliability, user convenience, and safety.
One of the key design features of the F01-5401900-DY Fuel Cap is its integrated three-part structure, consisting of the main cap body, the nitrile rubber sealing O-ring, and the built-in pressure relief valve. The main cap body is designed with a compact, ergonomic shape, featuring a knurled surface that provides a non-slip grip, allowing the driver to easily screw and unscrew the cap without slipping—even when hands are wet or greasy. The knurled design also enhances the cap’s aesthetic appearance, matching the Jetour X70’s exterior design style. The cap’s top surface is marked with the fuel type recommendation (“Please Refuel with 92# and Above Unleaded Gasoline”), which serves as a reminder for the driver to use the correct fuel grade, helping to protect the engine and improve fuel efficiency.
Another critical design feature is the precision-machined thread structure and sealing mechanism. The fuel cap’s internal threads are designed to match the Jetour X70’s fuel filler neck threads with a pitch of 1.5 mm, ensuring a tight, secure fit when fully tightened. The nitrile rubber O-ring is embedded in a circular groove inside the cap, and when the cap is screwed onto the filler neck, the O-ring is compressed to form a hermetic seal, preventing fuel leakage and vapor escape. The cap also features a torque-limiting mechanism, which ensures that the cap is tightened to the correct torque (8–12 N·m) when a “click” sound is heard—preventing over-tightening (which could damage the threads or seal) or under-tightening (which could cause leakage). Additionally, the built-in pressure relief valve is integrated into the cap’s main body, designed to automatically adjust the fuel tank’s internal pressure, ensuring smooth fuel supply to the engine and preventing damage to the fuel tank or fuel system.
The F01-5401900-DY Fuel Cap also features a practical retaining strap, which is connected to the cap’s main body and the fuel filler door. This strap prevents the cap from being dropped, lost, or misplaced during refueling—a common issue with generic fuel caps that lack this design. The strap is made of high-strength nylon material, which is flexible, durable, and resistant to gasoline and environmental damage, ensuring it remains intact even after long-term use. The fuel cap is also designed to be compatible with the Jetour X70’s fuel filler door, which features a manual (press-to-open) mechanism: when the vehicle is unlocked, the driver can press the fuel filler door to open it, revealing the fuel cap for refueling; when locked, the fuel filler door is secured, preventing unauthorized access to the fuel tank. Additionally, the cap’s compact design ensures it fits perfectly within the fuel filler neck, minimizing space occupation and preventing interference with the fuel nozzle during refueling.
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