The Global CO2 Heat Pump Air Conditioning Lines Market was valued at USD 1.21 Billion in 2023 and is projected to reach USD 1.89 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 6.5% during the forecast period (2024–2030). This robust growth is fueled by the automotive industry’s accelerated transition to electric vehicles (EVs), stringent global refrigerant regulations phasing out high-GWP substances, and the superior energy efficiency of CO2 (R744) refrigerant systems.

As vehicle manufacturers worldwide commit to sustainability and enhanced thermal management for battery electric vehicles (BEVs), the critical components that ensure system integrity—the air conditioning lines—are gaining strategic importance. In this blog, we profile the Top 10 Companies in the CO2 Heat Pump Air Conditioning Lines Industry—a group of established automotive suppliers and specialized component manufacturers shaping the future of eco-friendly vehicle climate control.

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🔟 1. Continental AG

Headquarters: Hanover, Germany
Key Offering: High-pressure hoses and lines, thermal management systems, complete AC line sets

Continental AG is a global technology leader in the automotive industry, supplying a comprehensive portfolio of components for vehicle thermal management. Their expertise in manufacturing robust, high-pressure-resistant lines is critical for CO2 refrigerant systems, which operate at significantly higher pressures than traditional systems.

Innovation and Sustainability Focus:

• Development of multi-layer barrier hoses specifically designed for R744 refrigerant

• Integrated solutions for battery cooling and cabin heating in EVs

• Commitment to carbon-neutral operations by 2040

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9️⃣ 2. Hanon Systems

Headquarters: Daejeon, South Korea
Key Offering: Complete CO2 heat pump systems, AC lines, compressors, heat exchangers

Hanon Systems is a world-leading supplier of automotive thermal and energy management solutions. The company is at the forefront of CO2 heat pump technology, providing integrated systems to major global OEMs. Their product range includes the specialized lines and hoses required for high-pressure R744 circuits.

Innovation and Sustainability Focus:

• Pioneering compact and lightweight line designs for electric vehicle platforms

• Strategic partnerships with EV manufacturers for next-generation thermal systems

• Focus on reducing the overall carbon footprint of vehicle operations

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8️⃣ 3. MAHLE GmbH

Headquarters: Stuttgart, Germany
Key Offering: Thermal management modules, AC lines, refrigerant guides, service parts

MAHLE is a prominent international development partner and supplier to the automotive industry. The company offers a wide array of components for air conditioning and coolant circuits, including specialized lines capable of withstanding the extreme pressures of CO2 systems.

Innovation and Sustainability Focus:

• R&D in corrosion-resistant and durable line materials

• Development of complete refrigerant circuit solutions for improved system efficiency

• Sustainability strategy aligned with the Paris Agreement goals

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Global CO2 Heat Pump Air Conditioning Lines Market – View in Detailed Research Report

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7️⃣ 4. Sanoh Industrial Co., Ltd.

Headquarters: Kuki, Saitama, Japan
Key Offering: Brake lines, fuel lines, AC lines, multi-layer tubes

Sanoh Industrial is a specialist in manufacturing automotive tubing and fluid conveyance systems. With deep expertise in high-pressure applications, the company produces AC lines that meet the rigorous demands of CO2 refrigerant, including superior burst pressure resistance and permeation performance.

Innovation and Sustainability Focus:

• Advanced manufacturing techniques for precision tubing

• Global production footprint to support international OEMs

• Commitment to reducing environmental impact through efficient production

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6️⃣ 5. TI Fluid Systems

Headquarters: Auburn Hills, Michigan, USA
Key Offering: Fuel and brake lines, thermal product lines, quick connectors

TI Fluid Systems is a leading global manufacturer of automotive fluid storage, carrying, and delivery systems. Their thermal product lines division is well-equipped to supply the automotive industry with AC lines designed for next-generation refrigerants like R744, leveraging their extensive experience in fluid handling.

Innovation and Sustainability Focus:

• Development of lightweight and compact line solutions

• Expertise in handling systems with operating pressures exceeding 100 bar

• Focus on sustainable manufacturing processes and materials

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5️⃣ 6. Yokohama Rubber Co., Ltd.

Headquarters: Tokyo, Japan
Key Offering: High-pressure hoses for automotive and industrial applications

The Yokohama Rubber Company, renowned for its tires, also possesses significant expertise in high-performance hoses. Their industrial products division manufactures durable, high-pressure hoses suitable for demanding applications, including automotive air conditioning systems using CO2 refrigerant.

Innovation and Sustainability Focus:

• Proprietary rubber compounding technologies for enhanced durability

• Focus on reducing refrigerant permeation through advanced material science

• Sustainability initiatives targeting carbon neutrality by 2050

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4️⃣ 7. Sumitomo Riko Company Limited

Headquarters: Komaki, Aichi, Japan
Key Offering: Anti-vibration products, functional parts, hoses, piping

Sumitomo Riko is a key supplier of automotive components, including a wide range of hoses and piping systems. The company’s technical expertise in polymer science enables it to produce AC lines that maintain integrity under the high-pressure conditions of CO2 heat pump systems.

Innovation and Sustainability Focus:

• Development of heat-resistant and low-permeation hose materials

• Integration of noise and vibration damping properties into line designs

• Active pursuit of the Sustainable Development Goals (SDGs)

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3️⃣ 8. Errecinque S.r.l.

Headquarters: San Giovanni Teatino, Italy
Key Offering: Air conditioning lines, service parts, OE-quality replacements

Errecinque is a specialized Italian manufacturer focused on air conditioning lines and components for the automotive aftermarket and original equipment sectors. The company is developing product lines compatible with the growing adoption of R744 systems in the European market.

Innovation and Sustainability Focus:

• Investment in tooling and capabilities for high-pressure line manufacturing

• Strong focus on quality and performance matching OE specifications

• Adapting product portfolios to meet evolving environmental regulations

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2️⃣ 9. Changzhou Tenglong Auto Parts Co., Ltd.

Headquarters: Changzhou, Jiangsu, China
Key Offering: Automotive air conditioning pipes, hoses, assemblies

Changzhou Tenglong Auto Parts is a significant Chinese manufacturer specializing in automotive AC system components. The company supplies both the domestic Chinese market and international customers, and is expanding its capabilities to include lines suitable for CO2 refrigerant applications.

Innovation and Sustainability Focus:

• Scaling production to meet demand from China’s burgeoning EV sector

• Cost-effective manufacturing while maintaining quality standards

• Collaboration with domestic automakers on new thermal system designs

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1️⃣ 10. Tianjin Pengling Group Co., Ltd.

Headquarters: Tianjin, China
Key Offering: Tire valves, rubber hoses, air conditioning pipes

Tianjin Pengling Group is a major Chinese automotive components supplier with a strong presence in rubber and plastic products. The company manufactures a variety of hoses and pipes, including those for air conditioning systems, and is developing solutions aligned with new refrigerant trends.

Innovation and Sustainability Focus:

• Investment in R&D for high-performance polymer materials

• Strategic positioning within the world’s largest automotive market

• Focus on supplying the fast-growing Chinese electric vehicle industry

Download FREE Sample Report:
Global CO2 Heat Pump Air Conditioning Lines Market – View in Detailed Research Report

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🌍 Outlook: The Future of Automotive AC Lines Is High-Pressure and Sustainable

The CO2 heat pump air conditioning lines market is experiencing a fundamental transformation driven by the automotive industry’s electrification. While traditional rubber hoses for HFC-134a or HFO-1234yf systems are well-established, the shift to R744 demands a new generation of components capable of handling pressures over ten times higher.

📈 Key Trends Shaping the Market:

• Accelerated adoption of CO2 heat pumps in battery electric vehicles for extended winter range

• Material innovation focused on lightweight composites and advanced polymers to reduce weight and permeation

• Increasing regulatory pressure in Europe and North America to phase down high-GWP refrigerants

• Integration of thermal management systems that combine battery cooling, cabin heating, and air conditioning into a single, efficient circuit

The companies listed above are not only supplying critical components for today’s vehicles—they are engineering the thermal management backbone for the zero-emission mobility of tomorrow.

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Global CO2 Heat Pump Air Conditioning Lines Market – View in Detailed Research Report