Four Seasons 74796 HVAC Heater Control Valve

Heater Valve In-Line Restrictor for OE Fitment

The Four Seasons 74796 is an OE replacement heater valve in-line restrictor built for HVAC heater control applications. It uses a non-bypass, in-line restrictor design with two hose connectors and a 0.750 in. opening to regulate heater coolant flow through the system.

Compatible With Chrysler Town & Country, Dodge Caravan, Dodge Grand Caravan, Chrysler Voyager, Chrysler Grand Voyager, Chevrolet Camaro, Pontiac Firebird, Buick Park Avenue, Buick Riviera, Oldsmobile 88, Oldsmobile 98, Pontiac Bonneville, and Oldsmobile Custom Cruiser applications listed below.

Key Features

• Four Seasons In-line Restrictor product line
• Part number 74796
• Heater valve in-line restrictor for HVAC temperature control systems
• Non-bypass style with in-line restrictor operation
• Plastic construction
• Two hose connector design
• 0.750 in. / 19.050 mm opening
• OE replacement configuration

Product Details

This Four Seasons heater valve in-line restrictor is used in HVAC heater control circuits where coolant flow must be regulated through the heater hose path. The non-bypass design and OE replacement layout make it a direct-match service part for vehicles that use an in-line flow restriction valve rather than a bypass-style valve. Four Seasons 74796 is listed across multiple Chrysler, Dodge, Chevrolet, Pontiac, Buick, and Oldsmobile applications, including Chrysler Town & Country and Dodge Grand Caravan models.

This part cross-references Monroe Shocks & Struts 5960 for the same application.

Common Issues It Can Address

• Heater output that is too hot or too cold due to restricted coolant flow control
• HVAC temperature inconsistency caused by a worn or leaking heater valve
• Improper heater hose flow regulation in an OE-style in-line setup
• Replacement needs after a cracked or deteriorated plastic valve body
• Service repair on vehicles using a 0.750 in. heater hose opening

Installation Notes and Tips

• Verify hose routing and valve orientation before removal of the original part.
• Confirm the heater hose opening size matches the vehicle’s OE specification.
• Inspect hose ends and clamps during replacement to ensure a secure seal.
• Match the application to the listed year, make, and model before installation.

Quality Assurance

Four Seasons 74796 is an OE replacement heater valve in-line restrictor built to match the original application style and fitment requirements listed for the vehicle coverage shown.

• Fits 2003-2007 Chrysler Town & Country, N/A
• Fits 2003-2007 Dodge Caravan, N/A
• Fits 2003-2007 Dodge Grand Caravan, N/A
• Fits 2003 Chrysler Voyager, N/A
• Fits 2001 Chrysler Voyager, N/A
• Fits 2001 Chrysler Grand Voyager, N/A
• Fits 1995-1999 Chevrolet Camaro, N/A
• Fits 1993-1999 Pontiac Firebird, N/A
• Fits 1995 Buick Park Avenue, N/A
• Fits 1995 Buick Riviera, N/A
• Fits 1993-1995 Chevrolet Camaro, N/A
• Fits 1995 Oldsmobile 88, N/A
• Fits 1995 Oldsmobile 98, N/A
• Fits 1995 Pontiac Bonneville, N/A
• Fits 1993-1995 Pontiac Firebird, N/A
• Fits 1992 Oldsmobile Custom Cruiser, N/A