{"product_id":"four-seasons-38729-a-c-expansion-valve","title":"Four Seasons 38729 A\/C Expansion Valve","description":"\u003ch2\u003eFour Seasons 38729 Expansion Valve Overview\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 38729 expansion valve is a brass TXV for R134A air conditioning systems. It regulates refrigerant flow into the evaporator and helps maintain the correct superheat setting for stable HVAC performance.\u003c\/p\u003e\u003cp\u003eBuilt for service work on automotive A\/C systems, this Four Seasons Expansion Valve line part is a direct-fit style replacement for vehicles that use a TXV calibrated to 7.5 super heat. It is a practical choice when diagnosing poor cooling, uneven vent temperatures, or refrigerant metering concerns on applications such as Ford F-150 and Chevrolet Silverado.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour Seasons Expansion Valve line, part number 38729\u003c\/li\u003e\n\u003cli\u003eTXV design for precise refrigerant metering\u003c\/li\u003e\n\u003cli\u003eBrass construction\u003c\/li\u003e\n\u003cli\u003eConfigured for R134A refrigerant systems\u003c\/li\u003e\n\u003cli\u003e7.5 super heat specification\u003c\/li\u003e\n\u003cli\u003eCross-references Dorman - HELP 38729 for the same application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 38729 A\/C expansion valve controls refrigerant delivery to the evaporator based on system demand. Its TXV design helps maintain proper evaporator feed in R134A systems, supporting consistent cabin cooling and more stable HVAC operation. When replacing a worn or restricted valve, matching the correct super heat specification is important for proper system balance. This part number 38729 is commonly searched for service on Ford F-150 and Chevrolet Silverado HVAC repairs where the original valve uses the same configuration.\u003c\/p\u003e\u003cp\u003eFour Seasons uses the Expansion Valve product line for A\/C flow restriction applications that require accurate refrigerant control. For buyers comparing replacement options, this valve also cross-references Dorman - HELP 38729 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or inconsistent A\/C cooling output\u003c\/li\u003e\n\u003cli\u003eIncorrect refrigerant metering at the evaporator\u003c\/li\u003e\n\u003cli\u003eTemperature swings from a sticking TXV\u003c\/li\u003e\n\u003cli\u003eHVAC performance issues after A\/C service\u003c\/li\u003e\n\u003cli\u003eSystem imbalance caused by a worn expansion valve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s refrigerant type, valve style, and super heat specification before installation. Replace the expansion valve only after confirming the rest of the A\/C system is clean and free of contamination. Always evacuate and recharge the system according to the vehicle service procedure after replacement. For fitment-based searches, confirm the exact application on Ford F-150 and Chevrolet Silverado models before ordering part number 38729.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons is a recognized aftermarket brand for HVAC service parts, and this expansion valve is built to meet the listed brass, TXV, R134A, and 7.5 super heat specifications for the intended application.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":51967375671477,"sku":"BBRN-38729","price":39.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_38729_Fro.jpg?v=1775068173","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-38729-a-c-expansion-valve","provider":"PartCatalog","version":"1.0","type":"link"}