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Verify Part Number: Please confirm your old part shows A0009973612 or 0009973612. This is a standard 3/2-way valve (3 Ports, 2 Positions).
Direct Replacement: This unit is a 100% direct fit for Mercedes-Benz commercial vehicles; no modifications to the pneumatic lines are required.
Voltage/System Check: Ensure your vehicle's system pressure and electrical connectors (if applicable) match the specifications.
Expert Support: If you are unsure about fitment, send us your VIN (17 digits) and we will verify compatibility within 12 hours.
Product Description
Premium 3/2-way Pneumatic Valve for Mercedes-Benz Commercial Vehicles
Restore the precision of your truck's air system with this high-quality 3/2-way Valve (A0009973612). Engineered to meet or exceed OEM standards, this valve is essential for directing airflow in auxiliary systems, such as differential locks, seat adjustments, or chassis pneumatic controls.
Constructed from durable, high-strength composite and alloy materials, it offers exceptional resistance to vibrations, heavy-duty cycles, and harsh environmental conditions. The internal seals are designed for low friction and high-temperature stability, ensuring consistent performance in both extreme cold and engine-heat environments. Choosing this valve means choosing reliability for your long-haul operations.
Technical Specifications
Feature
Technical Specification
Product Name
3/2-way Pneumatic Directional Valve
OEM Reference
0009973612 / A0009973612
Compatible Brand
Mercedes-Benz (Truck/Bus/Unimog)
Valve Type
3-Port / 2-Position (Normally Closed/Open depending on setup)
Max Operating Pressure
10.0 - 12.0 Bar
Operating Temperature
-40°C to +100°C
Port Interface
M12 / Push-in Fittings (Model Dependent)
Main Material
Reinforced PA66 / Brass / Aluminum
Sealing Material
NBR / EPDM (High Durability)
Why Choose Us?
Engineered for Reliability:
Precision Airflow Control: Optimized internal structure ensures zero internal leakage and rapid switching response.
Corrosion Resistance: The outer housing is treated with a specialized coating to resist road salt, grime, and oil contamination.
Extended Service Life: Tested for over 1 million switching cycles to ensure it outlasts standard aftermarket alternatives.
Ready to Install: Comes with pre-installed dust caps to ensure the internal mechanism remains clean during transit and installation.
Frequently Asked Questions
What is the function of a 3/2-way valve in a Mercedes truck?
It is a directional control valve with 3 ports and 2 states. It is typically used to fill or exhaust air from a single-acting cylinder or to pilot larger pneumatic valves in the truck's chassis or gearbox.
Can this valve replace other brands like Wabco or Knorr-Bremse?
Yes, if your original part number is A0009973612, this is the correct technical cross-reference, regardless of the manufacturer (OE vs. Aftermarket).
My old valve is leaking air from the exhaust port; will this solve it?
Yes. Air leaking from the exhaust port usually indicates an internal seal failure. Replacing the unit with a new A0009973612 will restore system pressure.
Is this valve suitable for 24V electrical control?
Please note that A0009973612 is a mechanical/pneumatically-actuated 3/2 valve. If your system requires an electrical solenoid (Solenoid Valve), please contact us with your VIN to find the electronic version.
Do you offer bulk discounts for repair shops?
Yes, we offer tiered pricing for fleet owners and specialized truck repair workshops. Please send an inquiry for a wholesale quote.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2011
Total Annual:
10000000-100000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Guangzhou Jinnaide Automotive Parts Co., Ltd is a professional supplier specializing in high-quality commercial vehicle and heavy-duty truck parts. With years of industry experience, we are committed to providing reliable products and efficient services to customers worldwide. Our extensive product ... Guangzhou Jinnaide Automotive Parts Co., Ltd is a professional supplier specializing in high-quality commercial vehicle and heavy-duty truck parts. With years of industry experience, we are committed to providing reliable products and efficient services to customers worldwide. Our extensive product ...
