Protecting your fuel from theft, contamination, and evaporation is essential for every heavy‑duty truck owner. The 199100550101 Metal gas cap with key from HOWO is engineered to provide a robust, secure seal for your fuel tank, combining high‑quality metal construction with a reliable key‑locking mechanism for peace of mind. As a vital Howo/Sitrak truck parts component, this gas cap is manufactured from corrosion‑resistant steel with a precision‑machined thread and a durable rubber gasket, ensuring a leak‑proof fit that maintains fuel system integrity. Whether you are replacing a lost or worn cap or upgrading to a more secure solution, the 199100550101 guarantees a perfect factory fit, superior fuel retention, and lasting reliability – making it the trusted choice for professional workshops and fleet operators worldwide.
The fuel cap is the primary barrier between your fuel tank and the outside environment, preventing dirt, water, and debris from entering the fuel system while also reducing fuel evaporation and vapour emissions. The 199100550101 is specifically designed to provide a positive, airtight seal that maintains the integrity of your fuel system, ensuring that your engine receives clean, uncontaminated fuel for optimal performance. A damaged or missing cap can lead to fuel contamination, reduced fuel economy, and even engine damage. HOWO has engineered this metal gas cap with a high‑strength steel body and a precision‑formed rubber gasket that conforms perfectly to the fuel filler neck, creating a leak‑proof seal. The integrated key lock provides an added layer of security, deterring fuel theft and unauthorised access. With the 199100550101, you protect your fuel, your engine, and your investment.
Secure Lock
Key‑Operated
Leak‑Proof
Rubber Gasket
OEM Fit
Exact Match
Corrosion Proof
Metal Construction
The 199100550101 metal gas cap is manufactured to the highest OEM standards, incorporating advanced materials and precision engineering. Below are the complete technical specifications for this essential fuel system component.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 199100550101 | Exact Match |
| Part Name | Metal Gas Cap with Key | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / Heavy‑Duty Trucks | Fuel tank sealing |
| Material | High‑strength steel | Zinc‑plated, corrosion‑resistant |
| Lock Type | Key‑operated (2 keys included) | High‑security cylinder |
| Gasket Material | Nitrile rubber (NBR) | Fuel & oil resistant |
| Thread Size | M80 x 2.0 (standard) | Precision machined |
| Sealing Type | Compression seal with gasket | Leak‑proof |
| Temperature Range | -40°C to +120°C | Extreme duty |
| Weight | 0.45 kg | Substantial |
| Warranty | 12 Months | Manufacturer Guarantee |
The 199100550101 metal gas cap is produced using advanced stamping, machining, and assembly processes to ensure consistent quality and durability. The steel body is precision‑formed to exacting tolerances, ensuring a snug, secure fit on the fuel filler neck. The threads are rolled for strength and smooth engagement, reducing the risk of cross‑threading. The rubber gasket is moulded from a fuel‑resistant NBR compound that maintains its elasticity over a wide temperature range, providing a reliable seal that prevents fuel vapour from escaping and contaminants from entering. The key lock mechanism is constructed from hardened steel with a high‑security cylinder, offering excellent resistance to picking and tampering. Each cap is tested for sealing integrity, key operation, and dimensional accuracy, guaranteeing that the 199100550101 meets HOWO’s stringent quality standards. This meticulous engineering ensures that your fuel tank remains sealed, secure, and protected, mile after mile.
The 199100550101 metal gas cap is specifically designed for HOWO heavy‑duty trucks, including T7H, A7, and derivative models. It directly replaces the original cap with identical thread size, sealing surface, and keying mechanism, ensuring a straightforward installation without modifications. The cap is compatible with both standard and auxiliary fuel tanks, and it works seamlessly with the factory fuel filler neck. This metal gas cap is also compatible with many Sinotruk and other commercial vehicles that share the same fuel tank thread specification. To confirm fitment, always cross‑reference the OEM number on your existing cap with 199100550101. If they match, this component will integrate seamlessly. Keeping this cap in your spare parts inventory ensures rapid replacement in case of loss or damage, minimising downtime and protecting your fuel system.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
Fuel Tank
Direct Mount
Direct Replacement
No Modifications
Replacing a worn, damaged, or missing fuel cap with the 199100550101 immediately restores the integrity of your fuel system. The secure seal prevents fuel evaporation, which reduces emissions and improves fuel economy. The tight closure also blocks dirt and moisture from entering the tank, protecting the fuel pump, injectors, and combustion chamber from contamination. The key lock provides a strong deterrent against fuel theft, safeguarding your valuable diesel from unauthorised siphoning. The robust metal construction and corrosion‑resistant finish ensure that the cap remains functional and attractive over years of service, resisting rust and wear. For fleet operators, a reliable fuel cap reduces fuel loss, lowers maintenance costs, and helps maintain the performance and efficiency of your vehicles. By investing in the 199100550101, you ensure that your HOWO truck’s fuel system remains secure, sealed, and protected, mile after mile.
Installing the 199100550101 metal gas cap is a simple procedure. Begin by removing the old cap and inspecting the fuel filler neck for any damage or debris. Clean the threads and sealing surface if necessary. Align the new cap with the filler neck and turn it clockwise until it is fully seated and the gasket makes contact. Continue to tighten until the cap is snug, and then lock it using the provided key. To ensure proper sealing, the cap should click or feel firm when fully tightened. Periodically inspect the gasket for wear or cracking, and lubricate the key cylinder with a light graphite lubricant if it becomes stiff. With proper care, the 199100550101 will provide years of reliable service.
Pro Tip: When installing the new metal gas cap, ensure that the rubber gasket is properly seated and free from dirt. The 199100550101 is designed to provide a tight seal; if the cap feels loose, check the filler neck threads for damage. Always keep a spare key in a safe place to avoid being locked out of your fuel tank.
Genuine HOWO components are engineered to the highest standards, and the 199100550101 metal gas cap is no exception. Aftermarket caps often use inferior materials, imprecise threads, or weak locking mechanisms, leading to poor sealing, difficulty in operation, and premature failure. HOWO’s cap is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 199100550101, you benefit from HOWO’s rigorous testing, including sealing integrity, corrosion resistance, and lock durability tests. This ensures that the cap meets the demanding requirements of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the 199100550101 metal gas cap?
A: The 199100550101 is designed for HOWO T7H, A7, and other heavy‑duty trucks, as well as many Sinotruk models with the same fuel filler neck thread.
Q: What are the symptoms of a failing fuel cap?
A: Fuel odour, visible cracks in the gasket, difficulty in tightening or locking, and the Check Engine light (due to vapour leak) are common indicators.
Q: Does the cap come with keys?
A: Yes, the 199100550101 includes two identical keys for convenience.
Q: How do I verify the correct part?
A: Check the OEM number on your existing cap. If it matches 199100550101, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 199100550101 Metal Gas Cap today! Explore our complete selection of genuine HOWO and Sinotruk fuel system components at Howo/Sitrak truck parts and keep your fuel secure and sealed.
The 199100550101 Metal Gas Cap with Key from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your fuel tank remains sealed, secure, and protected, reducing fuel loss, emissions, and contamination risks. Whether you are a professional mechanic or a fleet manager, this gas cap offers the performance, durability, and exact fit that you can count on. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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