One Stop Solutions 1880 Radiator

Radiator for Buick Park Avenue

Restore cooling performance with this OSC Premium New Automotive Radiator, part number 1880. It is built for OES form and function and is engineered for the 1997-2000 Buick Park Avenue, including 2000 Buick Park Avenue with low coolant sensor. This radiator uses premium-grade aluminum construction with a plastic tank design and a crossflow layout for a direct-fit replacement.

Key Features

• Fits 1997-2000 Buick Park Avenue, including 2000 models with low coolant sensor
• OSC part number 1880
• Crossflow radiator design with one-row core
• Transmission oil cooler included with concentric cooler design
• Premium-grade aluminum core construction with plastic tanks
• Die-cut gasket design for leak resistance
• Individually pressure tested during production
• Factory-style fit, form, and function

Detailed Description

This OSC radiator is engineered to match original equipment dimensions and cooling layout for Buick Park Avenue applications. Core measurements include a 30 1/2-inch height, 15 1/16-inch width, and 5/8-inch thickness, with 1 5/16-inch inlet and 1 9/16-inch outlet connections. The unit includes a transmission oil cooler with a concentric design, while engine oil cooling is not included. OSC uses premium tubes, fins, headers, and tanks, and the radiator is assembled to factory specifications for consistent fitment and cooling performance. Part number 1880 is a direct replacement choice for drivers searching for a Buick Park Avenue radiator or a 1997-2000 Park Avenue cooling system replacement.

This part cross-references APDI 8011880 for the same application.

Common Problems This Radiator Can Address

• Overheating caused by a restricted or leaking radiator
• Transmission fluid temperature concerns related to a failing cooler circuit
• Coolant loss from cracked tanks or worn seals
• Reduced cooling efficiency from aged core materials
• Fitment issues when replacing an original Park Avenue radiator

Installation Notes and Tips

Verify inlet and outlet sizes, cooler line routing, and sensor-related fitment before installation. This radiator is designed as a drop-in replacement for the listed Buick Park Avenue applications, and all necessary fittings or hardware are included in each unit. Flush the cooling system, inspect hoses and clamps, and confirm proper transmission cooler connection during installation.

Quality Assurance

OSC tests the radiator core before assembly and retests the completed unit during production. Transmission and engine oil cooler circuits are checked prior to installation into the tank, and each radiator is individually pressure tested. The design also incorporates engineering updates aimed at improving durability and service life in higher-mileage vehicles.