For Volvo Engine Air Brake Valve Spare Parts Fit VOE 21991157 20837594 21707054 23532368
Ensure reliable and safe braking performance in your Volvo truck, bus, or construction vehicle with this high-quality air brake control valve, designed as a direct-fit replacement for OEM part numbers:
Commonly referred to as an air brake relay valve, dual circuit protection valve, or brake modulating valve, this critical component plays a vital role in the pneumatic braking system by regulating air pressure distribution between the front and rear axles, ensuring balanced braking force and fail-safe operation in case of partial system failure.
Engineered for durability and precision response, this valve is built to meet or exceed Volvo’s stringent performance standards—ideal for heavy-duty applications in long-haul transport, regional freight, mining, and municipal fleets.
Key attributes
| Item | Specifications |
|---|---|
| Product Name | Air Brake Control Valve / Relay Valve for Volvo Engines & Trucks |
| OEM Part Numbers | VOE 21991157, VOE 20837594, VOE 21707054, VOE 23532368 |
| Alternative Numbers | 21991157, 20837594, 21707054, 23532368, 21991157-20837594 Kit (valve + gasket) |
| Vehicle Fitment | Volvo Trucks: FH, FM, FM9, FM10, FL, NH, NL Series |
| Volvo Buses: 7700, 7900, 8500, 9700 Series | |
| Volvo Construction: EC300, EC460, L350, L150H (pneumatic brake models) | |
| Engine Compatibility | D12D, D13A, D16C, D7E, D9A, and other air-braked Volvo diesel engines |
| Valve Type | Dual-Circuit Protection Valve / Relay Valve / Brake Modulator |
| Function | Distributes air pressure to front/rear brakes, ensures fail-safe operation |
| Enables quick brake application and release (reduces lag) | |
| Port Configuration | G1/4" or 1/4" NPT – Standard ISO Metric Threads (P1, P2, A, B, T ports) |
| Operating Pressure | 7–12 bar (100–175 psi) normal working range |
| Material | High-Grade Cast Aluminum Body with Zinc-Plated Steel Fittings |
| Seals & Diaphragms | Nitrile Rubber (NBR) – Oil & Air Contaminant Resistant |
| Temperature Range | -40°C to +80°C (-40°F to +176°F) |
| Warranty | 12 Months / 12,000 miles (limited warranty) |
| Certifications | ISO 9001, TS 16949, ECE R27, E-Mark Compliant |
| Package Includes | 1x Air Brake Valve, Rubber Gasket Set, Installation Instructions |
| Brand | Specializing in Volvo Pneumatic Systems |
| Origin | Manufactured to OE specifications – EU/China (batch-dependent) |
| Volvo | FH16 | 1993-1999 |
| Volvo | FMX II | 2012- |
| Volvo | Vnl | 2013-2016 |
| Volvo | FH 16 II | 2009- |
Company Profile
Haifeng Auto Parts: Engineering Confidence into Every Drive.
For years, Haifeng Auto Parts has been the trusted name behind the high-performance components that keep vehicles running safely and smoothly. We understand that in the automotive world, quality isn't just a feature—it's the foundation of trust. That’s why we’ve built our entire operation around one promise: delivering uncompromising quality.
How We Deliver:
Precision Manufacturing: Our advanced, automated production lines craft each part with exceptional accuracy, ensuring a perfect fit and reliable performance every time.
Extreme Testing: We push our products to the limit. From intense temperature and wear tests to critical seal integrity checks, we ensure every component is ready for the toughest real-world conditions.
Proven Performance: Top auto manufacturers rely on our parts for their most critical systems—including braking, suspension, and transmission. Their trust is our testament to quality.
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