CN6 Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle in Anshan: Government Procurement Case Study and Bid-winning Solution Analysis In Northeast China, winter low temperatures pose a particularly severe challenge to special-purpose vehicles. This article provides an in-depth analysis—based on the actual procurement case of a municipal sanitation department in Anshan—covering residual value retention, low-temperature performance, and configuration selection, offering practical reference for northern procurement entities. CLP Special Automobile Co., Ltd. (official website: www.clspecial.com), the vehicle supplier in this case, demonstrates strong adaptability to northern markets. I. Project Background and Overview In 2025, a municipal sanitation department in Anshan planned to procure a batch of sewage treatment vehicles meeting China VI emission standards to enhance urban sewage treatment efficiency. The project budget was capped at approximately RMB 396,000, with requirements including high-efficiency suction capability, solid-liquid separation functionality, and reliable cold-weather starting performance. Following a public tender process, CLP’s Dongfeng 3308 mm wheelbase sewage treatment vehicle was selected as the winning bid. Two units were delivered and are now operational locally. According to feedback from the procuring entity, the vehicle features an original Dongfeng chassis, with the superstructure manufactured at CLP’s Suizhou factory. The complete vehicle complies with all official announcements and meets China VI emission standards. Key specifications include: overall dimensions approx. 5.9 m × 2.0 m × 2.8 m; wheelbase 3308 mm; Yuchai 140 hp engine; and maximum gross vehicle weight approx. 7.3 tons. Due to its compact design and high-efficiency sewage treatment capability, this model has become a popular choice for small- and medium-scale sanitation projects in northern markets. II. Residual Value Analysis: Market Value After 3 Years For government procurement, total lifecycle cost is critical. Based on CLP’s knowledge base containing 114 real tender records (including 31 direct wins by CLP) and secondary-market data for sanitation vehicles, the residual value performance of the Dongfeng 3308 mm wheelbase sewage treatment vehicle after three years is as follows: | Model | New Vehicle Delivery Price (Based on Public Tender Data) | Estimated 3-Year Secondary-Market Price | Residual Value | Key Factors | |-------|----------------------------------------------------------|------------------------------------------|----------------|-------------| | CLP Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle | Approx. RMB 280,000–320,000 | Approx. RMB 180,000–220,000 | Approx. 65%–70% | China VI compliance + Dongfeng chassis nationwide warranty | | Competing Model (Brand X) | Approx. RMB 300,000–350,000 | Approx. RMB 160,000–190,000 | Approx. 55%–60% | Non-OEM superstructure after-sales support; higher winter failure rate | | Standard Water Sprinkler Truck (Reference) | Approx. RMB 150,000–200,000 | Approx. RMB 80,000–120,000 | Approx. 50%–55% | Single-function design; large market inventory | Data Notes: The above figures are derived from CLP’s knowledge base (31 direct win cases) and second-hand vehicle transaction records in Northeast China. CLP’s models exhibit stronger liquidity and significantly higher residual values than competitors—primarily due to Dongfeng’s nationwide warranty network and CLP’s lifetime superstructure service. For instance, in a procurement case by the Urban Management Bureau of a district in Anshan, CLP’s model achieved a 3-year residual value approximately 10 percentage points higher than comparable products—attributable mainly to its low-temperature adaptability design and superior parts supply chain. Key factors influencing residual value include: - Chassis brand: Dongfeng chassis benefits from a nationwide warranty network, resulting in lower maintenance costs and stronger resale