Nissens 73642 HVAC Heater Core

Nissens 73642 HVAC Heater Core

The Nissens 73642 HVAC heater core is a direct-fit thermal component for select Volvo applications, including Volvo S90, V90, 960, 940, 740, 780, 760, and 745 models. Built with an aluminum core and plastic tanks, it is engineered for dependable cabin heat transfer in vehicles that need a precise heater core replacement.

Key Features

• Aluminum core construction for efficient heat exchange
• Plastic tank material for OE-style heater core design
• Mechanically jointed cooling fins for consistent assembly
• Core dimensions: 9.0900 in. height, 6.9300 in. length, 1.6500 in. width
• Pipe included: No
• Part number 73642 for accurate ordering and catalog matching

Product Details

Nissens develops thermal management components with a focus on quality manufacturing and aftermarket fitment. This HVAC heater core, part number 73642, is built for Volvo heater system service where restoring heat output and maintaining stable coolant-to-air transfer are priorities. The aluminum core helps move heat efficiently, while the plastic tanks and mechanically jointed cooling fins reflect a practical OE-style construction for the listed Volvo platforms. This part cross-references Spectra Premium 94734 for the same application.

Vehicle Fitment

• Fits 1997-1998 Volvo S90, N/A
• Fits 1997-1998 Volvo V90, N/A
• Fits 1992-1997 Volvo 960, N/A
• Fits 1991-1995 Volvo 940, N/A
• Fits 1985-1992 Volvo 740, N/A
• Fits 1987-1991 Volvo 780, N/A
• Fits 1985-1990 Volvo 760, N/A
• Fits 1985 Volvo 745, N/A

Common Replacement Reasons

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Heater core leakage or seepage
• Restricted heat transfer from age-related internal buildup
• Restoration work on Volvo S90, V90, 960, 940, 740, 780, 760, or 745 heater systems

Installation Notes

Verify the heater core dimensions and hose routing before installation. Because pipe included is listed as no, confirm the vehicle’s existing connections and related seals, clamps, and HVAC components during service. For best results, flush the cooling system and inspect for contamination that could affect the replacement heater core.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and its products are developed and manufactured to consistent quality standards across the range. The 73642 heater core reflects that manufacturing approach for Volvo HVAC repair and maintenance.