Trailer Control Module

Type	CONTROL VALVE
Place of Origin	Zhejiang, China
Purpose	For replace/repair
OE NO.	802539 K021464 3517058 85112212
Application	TRAILER SYSTEM
Gross Weight	18.5 KGS
Net Weight	15 KGS
Packing Quantity	25 PCS/CTN
Package Dimensions	54 CM*46 CM*28 CM

 

 

802539 Trailer Control Module belongs to CONTROL VALVE.

 

Specialized Control Functions

·Intelligent Air Pressure Distribution

  -Designed specifically for tractor-trailer dual-circuit braking systems

  -Dynamically adjusts front/rear axle air pressure ratio based on:

    →Real-time load conditions (reduces rear axle pressure when unloaded)

    →Trailer brake synchronization requirements

 

Multi-Mode Driving Adaptation

·Allows strategy switching via physical knob/dashboard interface:

  -Highway Mode: Linear pressure build-up

  -Mountain Mode: Enhanced engine brake coordination

  -Snow Mode: Graduated pressure release to prevent wheel lock

 

Core Technological Innovations

·Dynamic Pressure Compensation

  -Automatically increases air compressor output when detecting abnormal pressure drop rates (e.g., minor leaks) to maintain braking performance

·Mechanical Backup Channel

  -Fail-safe mechanical valve maintains basic braking function during electronic failure (compliant with ECE R13 regulations)

 

Maintenance Specifics

·Calibration Requirements

  -Mandatory 150,000km pressure recalibration using dedicated equipment (tolerance <0.2 bar)

·Waterproof Connectors

  -Features gold-plated terminals + silicone seals, but high-pressure washer direct spray is prohibited

 

Common Failure Symptoms

·Mode switching lag (often caused by soot-clogged pressure sensors)

·Trailer brake asynchronization (typically due to excessive control wire impedance)

 

 

802539 Trailer Control Module belongs to TRAILER SYSTEM.

 

Key Details:

·Purpose: Controls trailer braking functions

·Connection: Uses 1/8 inch NPT threaded ports (standard industrial size)

 

Why It Matters:

·Ensures proper air flow for trailer brake operation

·Standard NPT ports prevent leaks in the air system

·Designed specifically for trailer brake control

 

Typical Use:

·Heavy-duty truck trailers

·Commercial towing systems

·Any vehicle with air brake trailers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q：Where is the factory located?

A：It located in Diankou Industrial Zone, Zhuji City, Zhejiang Province, China, known as "The Hardware City in South China" with convenient transportation and developed freight.

 

Q：Can I have your catalogue?

A：Please contact us for catalogue and more details.

 

Q：How to obtain technical support when encountering problems during the use of accessories?

A：You can contact our technical support team through our customer service hotline, online chat, or email, and they will provide you with professional assistance and solutions.

 

Q：How to purchase and transport this accessory?

A：You can place an order through our international sales channels and choose the appropriate shipping method.

 

Q：Where is your factory?

A：It located in Diankou town of Zhuji City, Zhejiang Province, China, which is the biggest town of autoparts and hardware.