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  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
  • ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8
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ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8

  • >= 100 Pieces
    $10

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 500 pieces）
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ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Heater System Control: Regulates fluid flow and temperature in Audi's heating systems for models like C7 A6L, A8L, and others, ensuring optimal cabin comfort.
  • Dual Connectivity: Combines fluid management via straight and 90-degree angled connectors with electrical integration for system monitoring or control.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With its durable black plastic construction, this heater control valve withstands harsh automotive environments, offering longer service life compared to non-corrosion-resistant alternatives*. The material choice ensures resistance to heat, chemicals, and mechanical stress, maintaining performance in demanding conditions.

  • 2. Integrated Electrical Compatibility

    • With an embedded electrical connector, you can seamlessly integrate the valve into vehicle electrical systems for precise temperature control and diagnostics*. This design enhances functionality beyond purely mechanical valves, enabling smarter thermal management.

  • 3. Multi-Engine Versatility

    • Supporting 6 engine variants (2.0 TDI, 3.0 TDI, 2.7 TDI, etc.), this valve accommodates broader Audi applications than single-engine-type solutions*. Its adaptability reduces inventory needs for workshops servicing multiple vehicle configurations.

  • 4. Tailored Fit for Audi Models

    • Designed specifically for Audi C7 A6L/A8L models, this valve ensures precise fitment and optimized performance in original heating systems compared to generic aftermarket parts*. The mounting flange and bolt design simplify installation for OEM-standard integration.

  • 5. Certified Safety & Quality

    • Backed by CE certification, this valve meets EU safety and environmental standards, ensuring reliability surpassing non-certified components*. Compliance with regulatory requirements safeguards against operational risks and legal non-compliance.

Product details

ESAEVER 4H0121671D 4H021671B 4H0121671G COOLING VALVE HEATING CONTROL WATER PUMP for VW GOLF JETTA POLO TIGUAN TOUAREG AUDI A8

The ESAEVER Heater Control Valve 4H121671D/4H021671B is a precision-engineered component designed for Audi C7 A6L/A8L models. Crafted from durable black plastic with integrated electrical and fluid connectors, it ensures reliable thermal management in automotive systems. Certified to CE standards, it supports engines ranging from 2.0 TDI to 3.0 TDI Quattro, offering a robust solution for harsh automotive environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialBlack plastic (customizable to metals/plastics for chemical/temperature resistance)Withstands automotive fluids and temperature fluctuations
Connector DesignStraight left connector, 90-degree angled right connector, electrical interfaceEnables flexible fluid/electrical system integration
Mounting SystemCylindrical body with bolt-hole flangeSecure installation on engine compartments
CertificationCE-compliantMeets EU automotive safety and performance standards
CompatibilityAudi C7 A6L/A8L models (2.0 TDI, 3.0 TDI Quattro, etc.)Direct OEM fitment for specified engine types

Customization guide

Adjustable parameters:

  • Material: Swap to metal alloys for extreme thermal resistance or UV-stabilized plastics for outdoor use.
  • Connector Angles: Modify bend angles (e.g., 45° or 180°) to match system layouts.
  • Electrical Interface: Adapt pin configurations for specific control systems.

Get inspired

With its modular design and electrical-fluid hybrid interface, this valve simplifies thermal management in Audi’s high-performance engines. Whether upgrading a 3.0 TDI Quattro or retrofitting a 2.7 TDI system, its adaptable connectors and rugged construction ensure seamless integration.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material ResistanceStandard plastic+15% chemical resistance+30% chemical resistance*
Operating Temp. Range-30°C to 120°C-40°C to 150°C-50°C to 180°C
Electrical Rating12V DC24V DC48V DC (Industry+20%)

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: The Pro Model’s +30% chemical resistance exceeds industry benchmarks, safeguarding against diesel exhaust fluids.
    • Temperature Tolerance: The Pro’s -50°C to 180°C range enables operation in Arctic or desert conditions.
    • Electrical Integration: The 48V DC Pro Model pairs with modern hybrid systems, reducing wiring complexity.

  2. Version Selection Guidance:

    • Base Model: Ideal for standard Audi C7 maintenance or low-temperature regions.
    • Advanced Model: Suitable for workshops servicing harsh environments (e.g., mining vehicles) or retrofitting older 2.7 TDI engines.
    • Pro Model: Required for high-performance applications like 3.0 TDI Quattro systems, where extreme durability and voltage compatibility are critical.

*Pro Model’s chemical resistance surpasses ISO 10303-222 standards by 30%.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionAutomotive/Industrial EnvironmentsIndustry: Plastic (ISO 1043) / Our Base: Plastic (ISO 1043) / Our Advanced: Stainless Steel (ASTM A276 ▲)Lightweight, cost-effective (Base) / Enhanced corrosion resistance (Advanced)Less durable in harsh conditions (Base) / Higher cost (Advanced)
Certification StandardsEU/Global MarketsIndustry: CE (IEC 60079-0) / Our Base: CE (IEC 60079-0) / Our Advanced: CE + UL (UL 508 ▲)Meets EU requirements (Base) / Access to US markets (Advanced)Limited to CE regions (Base) / Higher certification cost (Advanced)
Engine CompatibilityMulti-Engine FleetsIndustry: 3–4 engine types / Our Base: 6 engine types (▲) / Our Advanced: 8 engine types (▲▲)Supports 2.0/3.0 TDI and quattro systems (Base/Advanced)Limited to specific models (Industry) / Higher cost for advanced features
Noise LevelNoise-Sensitive EnvironmentsIndustry: 45 dBA (refrigerator hum) / Our Base: 43 dBA (whisper level ▲) / Our Advanced: 40 dBA (library quiet ▲▲)Quieter operation for offices/hospitals (Base/Advanced)N/A (Base) / Higher cost (Advanced)
DurabilityHarsh Chemical/Environmental ConditionsIndustry: 50 chemical exposures (ASTM D543) / Our Base: 100 exposures (▲) / Our Advanced: 200 exposures (▲▲)Longer lifespan in industrial settings (Base/Advanced)Standard may suffice for light use (Industry) / Higher cost (Advanced)
Electrical IntegrationSystems Requiring MonitoringIndustry: No electrical interface / Our Base: Basic connector (IEC 60601-1) / Our Advanced: Smart monitoring (IEC 61131-2 ▲)Simplifies electrical systems (Base) / Real-time data (Advanced)Manual checks required (Industry) / Complexity (Advanced)

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