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Your SANY truck’s braking system and auxiliary functions depend on a constant, reliable supply of compressed air. The genuine 16990000021BA Sany Air Compressor is an OEM-grade component engineered to deliver superior performance and durability, ensuring your vehicle’s air system operates at peak efficiency under the most demanding conditions. As a vital part of the trusted SANY parts family, this air compressor guarantees perfect fitment, exact output specifications, and long-term reliability.
Built to withstand the high pressures and continuous operation required in construction, mining, and logistics, the 16990000021BA unit provides rapid air recovery, reduces system strain, and helps prevent costly downtime. Investing in this authentic component safeguards your brake system, suspension controls, and other pneumatic devices, ensuring your SANY truck remains safe and productive.
Sany Air Compressor
Воздушный компрессор Sany
Compresor de Aire Sany
The 16990000021BA Air Compressor is a single-cylinder, reciprocating piston unit designed for heavy-duty diesel engines. It features a durable cast iron cylinder and aluminum alloy head for optimal heat dissipation and structural integrity. The precision-machined piston and cylinder bore ensure minimal blow-by and maximum volumetric efficiency. Engineered with a robust oil-lubricated system, it draws lubrication directly from the engine, simplifying maintenance and ensuring consistent performance.
Performance is at the core of the 16990000021BA. It delivers a high free air delivery (FAD) rate, ensuring rapid air system charge times even during heavy demand cycles such as repeated braking. The discharge pressure is precisely calibrated to match the requirements of the SANY air brake system and auxiliary pneumatics. An integrated governor port allows for seamless mounting of the vehicle’s pressure governor, which controls the compressor’s load/unload cycles.
The table below provides detailed technical specifications for the genuine SANY 16990000021BA Air Compressor. These parameters are essential for verifying compatibility with your specific truck model and understanding the compressor’s performance capabilities under various operating conditions.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | 16990000021BA | Original SANY Identification |
| Component Name | Sany Air Compressor | Engine-Mounted Air Compressor |
| Compressor Type | Single-Cylinder, Reciprocating Piston | Oil-Lubricated, Engine-Driven |
| Cylinder Bore x Stroke | Model Specific (e.g., 92 mm x 48 mm) | Determines Displacement |
| Displacement (Theoretical) | ~320 cc/rev (Check Model) | Air Output per Revolution |
| Maximum Working Pressure | 12.5 bar (181 psi) | Standard for Heavy Truck Brake Systems |
| Rated Speed Range | 600 – 3000 RPM | Matches Engine Operating Range |
| Lubrication Type | Engine Oil, Pressurized Feed | Via Engine Oil Gallery |
| Cooling Method | Air Cooled (Finned Cylinder) | Auxiliary Cooling Fins |
| Mounting Type | Flange Mount to Engine Gear Case | Direct Drive via Timing Gears |
| Discharge Port Thread | Model-Specific (e.g., 1/2″ NPT) | For Air Line Connection |
| Governor Port | Integrated, Standard Thread | Accepts SANY Pressure Governor |
| Weight (Approx.) | 9 – 12 kg (Model Dependent) | Robust Yet Compact |
| Compatible Engines | Select SANY Diesel Engines | Verify with VIN/Engine Serial |
Replacing the 16990000021BA Air Compressor requires mechanical expertise and adherence to SANY service procedures. The compressor is typically mounted to the engine timing gear housing and driven directly by the engine’s gear train. Begin by safely isolating the vehicle’s electrical system and discharging the air system pressure. Remove the air lines, coolant lines (if water-cooled variants), and the governor. Unbolt the compressor from its mounting flange, carefully noting the orientation of the drive gear or coupling. Clean the mounting surface thoroughly. Install the new genuine 16990000021BA compressor using a new gasket or O-ring, ensuring proper gear lash if applicable. Torque the mounting bolts to the specified value in the correct sequence.
The 16990000021BA is designed as a direct OEM replacement for specific SANY engine families, including those used in SY series excavators and heavy trucks. Compatibility is not universal; always verify the part number 16990000021BA against your vehicle’s service manual or VIN-specific parts catalog. Using the correct compressor ensures the proper drive coupling engagement, oil feed pressure compatibility, and air delivery rate that matches the vehicle’s demand.
Before installing the new 16990000021BA, prime the compressor by pouring a small amount of clean engine oil into the oil inlet port while rotating the drive hub by hand. This ensures immediate lubrication on startup and prevents premature wear.
The 16990000021BA ensures your air brake system receives the required volume and pressure at all times. Fast pressure build-up reduces compressor duty cycle, extends its life, and ensures brakes are ready immediately after engine start. Consistent air delivery is critical for safe stopping distances and reliable operation of auxiliary systems like suspension leveling and clutch servos.
Built with premium materials and precision tolerances, the genuine 16990000021BA resists wear, oil carryover, and carbon buildup far better than generic alternatives. Its robust construction minimizes the risk of seal failure, broken valves, or seized pistons. This translates to longer service intervals, fewer roadside breakdowns, and lower overall operating costs.
High-quality internal seals in the 16990000021BA minimize oil carryover into the air system. This reduces contamination of air dryer desiccant, valves, and brake chambers, extending their life and preventing malfunctions. Less oil in the exhaust of the compressor also means lower hydrocarbon emissions to the atmosphere. It’s a better choice for your truck and the environment.
A failing air compressor exhibits several telltale symptoms. The most obvious is slow air pressure build-up or the inability to reach normal system pressure, often accompanied by the compressor running constantly. Excessive oil consumption without visible external leaks often points to internal seal failure, allowing oil to be pumped into the air system (evident by oil in the air dryer or wet tank). Unusual knocking or grinding noises from the compressor area indicate bearing or piston wear.
Another sign is the frequent cycling of the air dryer purge valve or governor. If you observe any of these issues, it is crucial to replace the compressor promptly with a genuine 16990000021BA to avoid secondary damage to brake valves, the air dryer, and other pneumatic components.
Delaying replacement can lead to total loss of air pressure, rendering the vehicle inoperable and unsafe. It can also cause debris from a failing compressor to contaminate the entire air system, necessitating expensive flushing and component replacement. The cost of a new, genuine 16990000021BA is far outweighed by the downtime and repair costs associated with a neglected, failed unit.
To maximize the lifespan of your 16990000021BA Air Compressor, follow these maintenance practices. Adhere strictly to the engine oil and filter change intervals specified by SANY, as the compressor shares the engine’s oil. Clean, high-quality oil is essential for internal lubrication and cooling of the compressor. Regularly check and replace the air dryer cartridge; a saturated air dryer forces the compressor to work harder and can introduce moisture into the system, promoting corrosion.
Inspect the compressor drive coupling for wear or backlash during routine maintenance. Also, periodically check for air leaks in the discharge line and governor connections, as leaks cause the compressor to cycle excessively, accelerating wear.
During every major service, inspect the compressor mounting bolts to ensure they remain at the correct torque. Listen for unusual noises that might indicate impending failure. By integrating these simple checks into your preventative maintenance schedule, you can ensure the 16990000021BA delivers reliable, long-term performance and helps avoid unexpected downtime on the job site.
The air compressor is a precision component that operates under high stress. Its output, mounting configuration, and oiling requirements are specific to each engine family. The genuine SANY 16990000021BA is not a generic, one-size-fits-all replacement. It is engineered with exact cylinder displacement, drive coupling dimensions, and unloader valve calibration to match the SANY engine’s power curve and the vehicle’s air demand profile. Aftermarket compressors often use inferior castings, incorrect internal tolerances, or substandard seals, leading to poor performance, oil slobber, and premature failure.
Choosing the authentic SANY 16990000021BA Air Compressor guarantees that every critical specification is met. It delivers the correct free air delivery at rated speeds, integrates seamlessly with the engine lubrication system, and provides the durability expected of a genuine SANY component. It is backed by the manufacturer’s warranty and quality assurance. For fleet managers focused on safety, uptime, and total cost of ownership, and for owner-operators who demand uncompromised reliability, the genuine 16990000021BA is the only responsible investment for their SANY trucks.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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