

Clean, dry fuel is the cornerstone of diesel engine performance and longevity, and the water cup assembly is your first line of defense against fuel contamination. The 612600082030 Water Cup Assembly from HOWO is engineered to deliver exceptional water separation, efficient particulate filtration, and a precise factory fit, ensuring that your engine receives only the cleanest, driest fuel for maximum power and reliability. As a vital Howo/Sitrak truck parts component, this water cup assembly is manufactured from high‑grade, corrosion‑resistant materials with a transparent, shatter‑resistant bowl, featuring an integrated drain valve that allows for quick, easy removal of accumulated water and sediment. Whether you are performing routine maintenance or replacing a worn unit, the 612600082030 delivers superior filtration efficiency, extended service intervals, and reliable operation – making it the trusted choice for professional workshops and fleet operators worldwide.
The water cup assembly is a critical component of the diesel fuel filtration system, designed to collect and remove water and sediment that can cause devastating damage to high‑pressure fuel injectors and pumps. The 612600082030 is specifically engineered to provide a clear, visible collection point for water separated from the fuel, allowing drivers and technicians to monitor and drain accumulated moisture quickly and efficiently. A clogged or damaged water cup can lead to water contamination, injector corrosion, bacterial growth, and reduced engine performance. HOWO has engineered this assembly with a durable, transparent bowl that resists clouding and cracking, and a reliable drain valve that ensures complete water removal without messy spills. The assembly’s robust construction and precision‑sealed design guarantee leak‑free operation, even under high pressure and temperature fluctuations. With the 612600082030, you protect your injection system, maintain fuel efficiency, and ensure the reliable operation of your HOWO truck[reference:0][reference:1].
Water Removal
Protects Injectors
Clear View
Visible Water Level
OEM Grade
Genuine HOWO
Easy Drain
Quick Service
The 612600082030 water cup assembly 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[reference:2][reference:3].
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 612600082030 | Exact Match |
| Part Name | Water Cup Assembly | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / Heavy-Duty Trucks | Fuel water separator |
| Material | High‑grade polymer / aluminium | Corrosion‑resistant |
| Bowl Type | Transparent, shatter‑resistant | Visible water level |
| Drain Valve | Integrated manual drain | Easy maintenance |
| Origin | Jinan, China | HOWO Manufacturing[reference:4] |
| Warranty | 12 Months | Manufacturer Guarantee[reference:5] |
The 612600082030 water cup assembly is produced using advanced injection moulding and precision assembly techniques to ensure exceptional durability and sealing performance. The transparent bowl is manufactured from a high‑strength, UV‑stabilised polymer that resists clouding, cracking, and chemical attack from diesel fuel and additives. The integrated drain valve features a robust, leak‑proof design that allows for quick and complete water removal without the need for tools. The assembly’s sealing system, including the critical seal ring (612600081327), ensures a positive, leak‑free connection to the fuel filter head, preventing air ingress and fuel leakage[reference:6]. Each unit is pressure‑tested and inspected for dimensional accuracy, guaranteeing that the 612600082030 meets HOWO’s stringent quality standards. This meticulous engineering ensures that your fuel system remains protected from water and sediment contamination, delivering clean, dry fuel to your engine for maximum performance and longevity.
The 612600082030 water cup assembly is specifically designed for HOWO heavy‑duty trucks, including T7H, A7, and derivative models, as well as many Sinotruk and Shacman vehicles that share the same fuel filtration architecture[reference:7][reference:8]. It directly replaces the original water cup assembly with identical mounting dimensions, connection points, and sealing interfaces, ensuring a straightforward installation without modifications. The assembly is compatible with all factory‑specified fuel filter heads and seal rings (612600081327)[reference:9][reference:10]. This water cup assembly is also suitable for use with Weichai WP10, WP12, and WP13 engine platforms commonly found in HOWO trucks[reference:11][reference:12]. To confirm fitment, always cross‑reference the OEM number on your existing assembly with 612600082030. If they match, this component will integrate seamlessly. Keeping this assembly in your spare parts inventory ensures rapid fuel system maintenance, minimising downtime and protecting your engine from water‑related damage.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
WP10/WP12/WP13
Engine Compatibility
Direct Replacement
No Modifications
Replacing a worn, cracked, or clogged water cup assembly with the 612600082030 immediately restores the full water‑separating capability of your fuel system. The clear bowl provides instant visual confirmation of water accumulation, enabling timely drainage before contaminants can reach the injectors. The robust construction and precision sealing eliminate the risk of fuel leaks and air ingress, maintaining consistent fuel pressure and delivery. The improved water separation efficiency protects your high‑pressure fuel pump and injectors from corrosion and wear, extending their service life and reducing maintenance costs. For fleet operators, a reliable water cup assembly reduces the risk of fuel‑related breakdowns, improves fuel economy, and helps maintain the performance and efficiency of your vehicles. By investing in the 612600082030, you ensure that your HOWO truck’s fuel system delivers the clean, dry fuel it needs to perform at its best, mile after mile.
Installing the 612600082030 water cup assembly is a simple procedure that requires basic hand tools. Begin by safely relieving fuel system pressure and placing a suitable container under the filter head. Disconnect the fuel lines from the existing assembly and remove the mounting bolts. Carefully separate the old water cup assembly from the filter head, taking care not to damage the sealing surfaces. Clean the filter head mating surface thoroughly, removing all old sealant and debris. Install the new seal ring (612600081327) into the groove if not already fitted, ensuring it is correctly seated[reference:13]. Position the new assembly onto the filter head and secure it with the mounting bolts, torquing to the manufacturer’s specification. Reconnect the fuel lines, prime the fuel system, and start the engine, checking for any leaks. During routine maintenance, periodically inspect the bowl for water accumulation and drain as necessary. With proper installation, the 612600082030 will provide years of reliable water separation and fuel filtration.
Pro Tip: When installing the new water cup assembly, always use a new seal ring (612600081327) to ensure a leak‑free connection. The 612600082030 is designed to work with the OEM‑spec seal ring; using a genuine HOWO seal guarantees optimal sealing and long‑term reliability. Regularly drain accumulated water from the bowl to prevent corrosion and bacterial growth in your fuel system[reference:14].
Genuine HOWO components are engineered to the highest standards, and the 612600082030 water cup assembly is no exception. Aftermarket assemblies often use inferior plastics, poor‑quality seals, or inaccurate dimensions, leading to leaks, premature failure, and potential fuel system damage. HOWO’s assembly is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 612600082030, you benefit from HOWO’s rigorous testing, including pressure cycling, temperature resistance, and seal integrity tests. This ensures that the assembly 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[reference:15].
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the 612600082030 water cup assembly?
A: The 612600082030 is designed for HOWO T7H, A7, and other heavy‑duty trucks, as well as many Sinotruk and Shacman models with the same fuel filtration system[reference:16][reference:17].
Q: What are the symptoms of a failing water cup assembly?
A: Visible cracks or clouding of the bowl, fuel leaks around the assembly, water contamination in the fuel system, and reduced engine performance are common indicators.
Q: Does the assembly come with the seal ring?
A: The 612600082030 typically includes the bowl and drain valve; the seal ring (612600081327) is often purchased separately. Always verify your specific kit contents[reference:18].
Q: How do I verify the correct part?
A: Check the OEM number on your existing water cup assembly. If it matches 612600082030, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 612600082030 Water Cup Assembly today! Explore our complete selection of genuine HOWO and Sinotruk fuel system components at Howo/Sitrak truck parts and keep your fuel clean and your engine protected.
The 612600082030 Water Cup Assembly from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your fuel system receives the protection it needs against water contamination, safeguarding your injectors and pumps from costly damage. Whether you are a professional mechanic or a fleet manager, this water cup assembly offers the performance, durability, and exact fit that you can rely on. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.