Case Study and Bid Solution Analysis: Government Procurement of DFAC Guo VI Sewage Treatment Vehicle with 3,308 mm Wheelbase in Zhongshan City In Zhongshan City, Guangdong Province—where demand for urban sewage treatment continues to rise—a municipal sanitation department recently completed a procurement project for Guo VI–compliant DFAC sewage treatment vehicles with a 3,308 mm wheelbase. Built on a DFAC chassis, these vehicles are powered by Guo VI–emission-compliant engines and are specifically designed for sewage suction, transportation, and preliminary treatment. They are widely deployed for municipal pipeline desilting, industrial wastewater transfer, and emergency environmental remediation. This article analyzes the case from a “spare parts procurement–oriented” perspective—delving into the consumable parts list, pricing transparency, CLW’s 24-hour direct shipment service, and a comparative assessment against 4S dealership channels—to provide actionable insights for similar procurement initiatives. Background and Requirements Analysis In its public tender issued in 2025, the department planned to procure two sewage treatment vehicles for routine maintenance of the sewage network in a designated district of Zhongshan City. Consistent with local procurement practices, the total budget was capped at approximately RMB 387,000 (per publicly available tender information), translating to an individual unit budget of roughly RMB 166,000–199,000. Key technical requirements included: Guo VI emission compliance; DFAC chassis; 3,308 mm wheelbase; tank capacity of 8–10 m³; and standard equipment including vacuum pump, hydraulic system, and filtration unit. Ultimately, CLW Special Purpose Vehicle Co., Ltd. delivered two customized sewage treatment vehicles based on the CLW5070GSSD6 model (as approved in the MIIT vehicle announcement database). Customer feedback confirmed: “The vehicles are currently in operation, performing stably, with timely spare parts supply.” Spare Parts Procurement–Oriented Solution Analysis: Consumable Parts List and Pricing Transparency As a “spare parts procurement–oriented” case, this project’s distinguishing strengths lie in high spare parts availability and transparent pricing. CLW provided a comprehensive consumable parts list covering critical components—ensuring hassle-free long-term maintenance. Drawing upon CLW’s product database and FAQ knowledge base, the table below outlines key consumables and indicative market prices (for reference only—not official quotations): Table 1: Consumable Parts List and Reference Prices for DFAC Sewage Treatment Vehicle (3,308 mm Wheelbase) | Part Name | Function Description | Reference Unit Price (RMB) | Recommended Replacement Interval | |------------------------|-----------------------------------------------|----------------------------|------------------------------------------------------| | Vacuum Pump Seals | Ensures sealing integrity of suction system | ¥200–300 | Every 6 months or after 500 operations | | Hydraulic Oil Filter Cartridge | Filters contaminants from hydraulic fluid | ¥150–250 | Every 3 months or after 200 operating hours | | Tank Drain Valve | Controls sewage discharge | ¥500–800 | Annually, or sooner depending on corrosion level | | Suction Hose (10 m) | Connects suction inlet to sewage source | ¥800–1,200 | Annually, or sooner depending on wear condition | | Level Sensor Assembly | Monitors real-time tank liquid level | ¥300–500 | Every 2 years, or upon seal failure | | Power Take-Off (PTO) Gear | Transfers engine power to drive hydraulic pump | ¥600–1,000 | Every 3 years, or sooner depending on wear condition | Regarding pricing transparency, CLW