In municipal sanitation sewage suction operations, the Dongfeng double-cab blue license plate sewage suction truck (3 m³) stands out for its excellent maneuverability (drivable with Class C driver’s license; minimal urban driving restrictions) and high operational efficiency—making it the preferred choice for cleaning narrow areas such as streets, residential communities, and culverts. However, many procurement entities face challenges during tendering or price inquiries due to market 'package quotations': identical configurations are quoted at vastly different prices and specifications by various suppliers—often concealing cost-cutting measures or the use of second-hand components. This article reveals these package quotation pitfalls using a recent procurement case involving a 3 m³ Dongfeng double-cab sewage suction truck by a district Urban Management Bureau in Bengbu, explains Chengli Special Purpose Vehicle’s transparent configuration approach, and helps you avoid hidden costs. I. Case Background: Procurement of a 3 m³ Sewage Suction Truck by a District Urban Management Bureau in Bengbu In December 2025, a district Urban Management Bureau in Bengbu planned to procure two Dongfeng double-cab blue license plate sewage suction trucks (tank capacity approx. 3 m³) to improve the efficiency of urban drainage pipe network cleaning. Following local procurement practices, the budget was capped at approximately RMB 149,000 per unit (tax-inclusive landed price), with requirements including China VI emission compliance, blue license plate eligibility, double-cab cab, and self-priming/self-discharging functionality. Prior to public tendering, the bureau received multiple quotation proposals: some quoted around RMB 143,000 and claimed 'full configuration'; others quoted around RMB 124,000 but covered only the bare chassis and tank; still others promoted 'package upgrades', hiding basic configurations and adding an extra charge of approximately RMB 20,000. Ultimately, after comparing Chengli Special Purpose Vehicle’s transparent configuration list with publicly available tender information, the bureau clarified its actual requirements and selected Chengli’s solution. II. Common Market Package Quotation Tactics As a specialized vehicle, sewage suction trucks exhibit significant performance and price differences depending on configuration. Typical market package traps include: • Low-price baiting with hidden configurations: Quotations cover only the chassis and bare tank—excluding critical components such as vacuum pumps, hydraulic systems, and control boxes—resulting in post-purchase installation costs far exceeding the initial budget. • Substitution with inferior components and downgraded specs: Use of non-standard vacuum pumps, outdated hydraulic valves, low-power engines, or even second-hand tanks—leading to insufficient suction force and high failure rates. • Falsified or ambiguous technical parameters: Claiming '3 m³' capacity while the officially certified tank volume is only 2.5 m³, or using chassis models incompatible with local environmental regulations—impeding registration and annual inspection. • Forced bundling and mandatory upgrades: Packaging commonly used features into 'premium packages', rendering the base model operationally inadequate and compelling customers to pay extra. Real-world example: A street-level environmental maintenance unit once purchased a sewage suction truck quoted at ~RMB 112,000. After deployment, they discovered insufficient vacuum pump suction power—extending single-operation time by 50%. Additionally, the tank’s official certification did not match regulatory requirements, causing annual inspection failure. The unit ultimately incurred additional expenses of ~RMB 15,000 for modifications and re-certification procedures—raising total cost above that of a compliant, standard solution. III. Methods to Identify Such Traps To counteract the above tactics, procurement entities are advised to verify t