A⁠/⁠C expansion valve (TRV) 4734728

Description

A⁠/⁠C expansion valve (TRV) by CHRYSLER, OEM 4734728, works within the engine or its auxiliary systems and supports normal operation. The source file identifies the item as “Клапан TRV кондиціонера”. Match the part primarily by its exact number, identification, and vehicle specification. Before purchase, confirm compatibility, completeness, and the actual condition of the item.

AC TRV EXPANSION VALVE. The thermostatic expansion valve (TRV) is a key component of the automotive air conditioning refrigerant circuit designed to meter and atomize refrigerant before it enters the evaporator. The valve regulates refrigerant flow according to evaporator outlet temperature and pressure, ensuring efficient heat exchange and stable cabin cooling performance. The assembly consists of a calibrated orifice housing, temperature-sensitive diaphragm element, spring mechanism and high/low pressure ports. Its operating principle is based on adjusting the flow area in response to refrigerant temperature, preventing evaporator icing and compressor damage. Failure symptoms include insufficient cooling, evaporator freezing, abnormal pressure readings and irregular compressor cycling. Causes may involve contamination, valve sticking or internal wear. Our catalog includes genuine OEM TRV valves, quality aftermarket replacements and inspected used units free from structural damage. Used parts are checked for mechanical integrity and proper sealing surfaces. Selection is based on VIN number, AC system type, compressor model and refrigerant specification. System flushing and receiver-drier replacement are recommended during installation. Timely replacement ensures efficient cooling and compressor protection.

About the manufacturer · CHRYSLER

Chrysler is an American automotive brand and manufacturer of vehicle components founded in 1925 by engineer and entrepreneur Walter Chrysler. Today the company is part of the international automotive group Stellantis and...

Chrysler is an American automotive brand and manufacturer of vehicle components founded in 1925 by engineer and entrepreneur Walter Chrysler. Today the company is part of the international automotive group Stellantis and remains a well‑known manufacturer of vehicles and genuine spare parts for Chrysler, Dodge, Jeep and RAM models. Under the Chrysler brand a wide range of original automotive parts is produced, including engine components, suspension parts, braking systems, transmission elements, electronic modules, body parts and various service and maintenance items. Genuine Chrysler parts are manufactured according to strict factory specifications and engineering standards defined by the vehicle manufacturer, ensuring precise fitment and full compatibility with the vehicles they are designed for. These components are developed and tested to meet durability, safety and performance requirements during long‑term vehicle operation. According to feedback from car owners and automotive repair specialists, Chrysler genuine parts are valued for their reliability, good durability and accurate installation without the need for modifications. Many users report stable vehicle performance and long service intervals when using original components. The most commonly mentioned drawback in reviews is the relatively higher price compared with many aftermarket alternatives, however many drivers consider the cost justified because of the quality, reliability and long service life of the parts.

Additional information

A⁠/⁠C expansion valve (TRV) by CHRYSLER, OEM 4734728, is a component that works within the engine or its auxiliary systems and supports normal operation. The source data describes this item as “Клапан TRV кондиціонера”. Correct operation of this part supports the related assembly and the vehicle functions designed around it. Wear may show as unusual noise, oil or air leakage, unstable engine operation, reduced power, increased consumption, or diagnostic faults. A single symptom does not always prove that this exact component has failed, so power supply, wiring, mountings, or adjacent parts should be checked as appropriate before replacement. Before purchase, compare the OEM number, engine code and revision, identification marks, dimensions, mountings, and adjacent-part configuration. OEM 4734728 is the primary reference, but an identical product name does not guarantee compatibility across different vehicle specifications. Before purchase, compare identification and appearance with the old part and verify compatibility by VIN.

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