For Volvo Engine Air Brake Valve Spare Parts Fit VOE 21991157 20837594 21707054 23532368

For Volvo Engine Air Brake Valve Spare Parts Fit VOE 21991157 20837594 21707054 23532368

For Volvo Engine Air Brake Valve Spare Parts Fit VOE 21991157 20837594 21707054 23532368

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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:

• VOE 21991157
• VOE 20837594
• VOE 21707054
• VOE 23532368

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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Contact Us for Transmission Gearbox Parts Solutions
Phone: +86 189 3190 5860
Email: huzilong9566@gmail.com

Partner with Haifeng for reliable automotive transmission gearbox components.

Guangzhou Haifeng Auto Parts Co., Ltd.