2904110-BS01
Product Details
Comprehensive Professional Description: Changan B511 Pre-reservoir (Part No. 2904110-BS01)
1. Basic Overview & Core Functional Positioning
The 2904110-BS01 Pre-reservoir is a genuine Original Equipment Manufacturer (OEM) component exclusively developed and produced by Changan Automobile Group, specifically tailored for the Changan B511 compact passenger vehicle—a model renowned for its reliability, practicality, and efficient performance in urban and family travel scenarios. As a critical auxiliary component in the vehicle’s lubrication system, this pre-reservoir (hereinafter referred to as "the pre-reservoir") is mounted in the engine compartment, connected to the engine’s lubrication circuit, oil pump, and oil pan. It plays an irreplaceable role in optimizing the engine’s lubrication efficiency, reducing cold-start wear, and ensuring the stable operation of the lubrication system, serving as a "pre-storage and rapid supply hub" for engine lubricating oil.
Unlike the main oil pan that stores the bulk of the engine’s lubricating oil, the 2904110-BS01 Pre-reservoir is designed to address a key pain point in engine operation: the lack of sufficient lubrication during cold starts. Research shows that over 50% of engine wear occurs during cold starts, as most lubricating oil flows back to the oil pan when the engine is shut down, leaving the lubrication channels and moving parts with little to no oil film protection. The pre-reservoir solves this problem by storing a dedicated volume of lubricating oil in a location close to the engine’s lubrication points, ensuring that oil is rapidly delivered to critical components (such as the crankshaft, camshaft, and bearings) the moment the engine is started, forming a protective oil film and minimizing dry friction.
The part number 2904110-BS01 serves as a unique identifier for this pre-reservoir, distinguishing it from other components in the Changan B511’s lubrication system (such as the oil pan, oil pump, or oil filter) and pre-reservoirs used in other Changan models (such as the CS35, CS55, or Eado). As a genuine OEM component, it strictly complies with Changan’s original design specifications, material standards, and performance requirements, while also adhering to international automotive quality and safety standards (ISO 9001, IATF 16949). Every dimension, connection port, and structural detail is precision-engineered to match the Changan B511’s engine layout, ensuring perfect compatibility and seamless integration with the existing lubrication system. Unlike low-quality aftermarket pre-reservoirs that often compromise on material quality and structural design, the genuine 2904110-BS01 Pre-reservoir undergoes rigorous testing and validation to ensure reliability, longevity, and optimal performance, making it the preferred choice for Changan B511 owners and professional automotive repair technicians.
2. Premium Material Selection & Precision Manufacturing Process
The Changan 2904110-BS01 Pre-reservoir is crafted from high-performance, automotive-grade materials, carefully selected by Changan’s engineering team to withstand the harsh operating conditions within the engine compartment—including exposure to extreme temperatures (ranging from -30°C to 120°C), high pressure, lubricating oil corrosion, and mechanical vibration. The team prioritizes materials that balance structural rigidity, corrosion resistance, and heat resistance, ensuring the pre-reservoir maintains stable performance over a service life of typically 80,000–120,000 kilometers under normal operating conditions (depending on usage environment and maintenance habits).
The core structure of the 2904110-BS01 Pre-reservoir is made of high-quality aluminum alloy (ADC12), a premium automotive-grade material widely used in engine components due to its excellent mechanical properties. Aluminum alloy offers superior heat conductivity, allowing the pre-reservoir to quickly warm up the stored lubricating oil during cold starts—reducing oil viscosity and ensuring faster oil flow to the engine’s lubrication points. It also exhibits excellent corrosion resistance against lubricating oil, additives, and moisture, preventing rust, deformation, or material degradation over time. Additionally, aluminum alloy is lightweight (approximately 0.5–0.8 kg), contributing to the Changan B511’s overall fuel efficiency by reducing vehicle weight.
The inner surface of the 2904110-BS01 Pre-reservoir is treated with a high-temperature resistant anti-corrosion coating, which further enhances its resistance to lubricating oil corrosion and prevents metal particles from contaminating the oil. The coating also ensures a smooth inner surface, reducing oil flow resistance and facilitating the rapid delivery of oil during cold starts. The outer surface is treated with an electrostatic spraying anti-rust coating, protecting the pre-reservoir from moisture and environmental pollutants in the engine compartment.
The manufacturing process of the 2904110-BS01 Pre-reservoir follows a strict, ISO 9001 and IATF 16949 certified production workflow, consistent with Changan’s global quality standards. The production process begins with the die-casting of the aluminum alloy base structure, using high-precision die-casting machines to ensure dimensional accuracy (tolerance of ±0.03 mm) and structural integrity. The die-casting process is carefully controlled to avoid defects such as bubbles, cracks, or uneven surfaces, ensuring each pre-reservoir meets Changan’s strict quality standards. After die-casting, the pre-reservoir undergoes a series of post-processing steps, including deburring, sanding, and cleaning, to remove any imperfections.
The integrated connection ports and mounting brackets are precision-machined to ensure perfect alignment with the Changan B511’s lubrication system and engine compartment mounting points. The pre-reservoir also includes a built-in pressure sensor and透气单向阀 (breathing check valve), which maintains internal pressure balance and prevents oil leakage while allowing air to enter when the oil level drops. The entire assembly undergoes rigorous quality control testing, including pressure resistance testing, temperature resistance testing, corrosion resistance testing, and dimensional accuracy testing, ensuring it can withstand the harsh conditions of the engine compartment and deliver reliable performance.
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