Spectra 2001-1764P Radiator

Spectra 2001-1764P Heavy Duty Radiator

The Spectra 2001-1764P is a heavy duty radiator built for demanding cooling-system service in compatible vehicle applications. It uses an aluminum core with plastic tanks and includes an integrated transmission oil cooler to support both engine cooling and automatic transmission fluid temperature control.

Fits 2001-2004 Freightliner FS65, downflow radiator applications. Fits 2001-2004 Freightliner MT55, downflow radiator applications. Fits 2001-2004 Freightliner MT45, downflow radiator applications.

Key Features

• Aluminum core with plastic tank construction
• Downflow design with upper-right inlet and lower-right outlet
• Integrated plated transmission oil cooler on the engine side
• Two-row core design for heavy duty cooling service
• 2.5 in. inlet and 2.5 in. outlet connections
• Mounting hardware included; pin attachment method
• Core dimensions: 42 in. height, 41.625 in. width, 2.1875 in. thickness

Detailed Description

Built for commercial-duty cooling demands, the Spectra 2001-1764P radiator is engineered to meet or exceed original equipment performance in the systems it replaces. The aluminum core supports efficient heat transfer, while the plastic tank design helps maintain OE-style fit and function. This radiator also includes a plated transmission oil cooler, making it a practical replacement when both engine cooling and transmission fluid cooling are part of the repair.

This part cross-references Perfection 800081 for the same application. The Spectra 2001-1764P is a direct-fit radiator choice for Freightliner FS65, Freightliner MT55, and Freightliner MT45 applications where the OE layout uses a downflow configuration with right-side inlet and outlet placement.

What It Helps Address

• Overheating caused by a worn or leaking radiator
• Transmission fluid temperature issues tied to a failed cooler circuit
• Coolant loss from cracked tanks or degraded core materials
• Poor heat rejection in heavy duty service conditions
• Fitment problems when replacing an OE-style downflow radiator

Installation Notes and Tips

Verify inlet and outlet location, core dimensions, and transmission cooler line spacing before installation. This radiator uses pin attachment and includes mounting hardware for the listed application. Confirm hose size, cooler fitting style, and mounting points against the original unit before final assembly.

Quality Assurance

Spectra Premium states that its heavy duty radiators are manufactured with engineering, production, and quality control processes intended to match or exceed OE performance in the components they replace, including engine and transmission cooling functions.