
One Stop Solutions 1888 Radiator
OE-Style Radiator for Select GM Minivans
This OSC Premium radiator is built for direct replacement service in select Oldsmobile Silhouette, Pontiac Montana, and Pontiac Trans Sport applications. Part number 1888 is engineered for OES form and function with a crossflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.
- Crossflow radiator design for the listed vehicle applications
- Premium aluminum core with plastic tanks
- 1-row core construction with 1" core thickness
- Transmission oil cooler included with plated cooler type
- Die-cut gasket design to help prevent leaks
- Individually pressure tested during production
- Factory-style fitment with multi-fit engineering
- All necessary fittings or hardware are included in each unit
Built Around Factory Specifications
OSC part number 1888 is designed around OE cooler design requirements and factory-style dimensions for a clean replacement fit. Core measurements include a 30 1/2" height, 15 1/16" width, and 1" thickness, with 1 5/16" inlet and outlet diameters. The radiator uses premium-grade tubes, fins, headers, tanks, and related components to support durability, while the transmission cooler is tested before tank installation and again after assembly. This radiator cross-references APDI 8011890 and Spectra Premium CU1890 for the same application.
Vehicle Fitment
- Fits 1997-2000 Oldsmobile Silhouette, N/A, 1" Core
- Fits 1999-2000 Pontiac Montana, N/A, 1" Core
- Fits 1997-1999 Pontiac Trans Sport, N/A, 1" Core
Common Replacement Reasons
- Leaking radiator tanks or seams
- Reduced cooling performance in stop-and-go driving
- Transmission fluid temperature concerns tied to the integrated cooler
- Corrosion or age-related core deterioration
- Overheating caused by restricted coolant flow
Installation Notes
Verify core dimensions, inlet and outlet sizes, and cooler line routing before installation. This radiator is a direct-fit style replacement for the listed GM minivan applications, and the factory-style design helps simplify installation. Confirm that the vehicle uses the 1" core configuration shown in the fitment notes before ordering.
Quality Assurance
OSC radiators are individually pressure tested and built to OE-style performance standards. The radiator core is tested before assembly, the cooler is tested before installation into the tank, and the completed unit is tested again after assembly for added quality control.
Original: $188.53
-65%$188.53
$65.99One Stop Solutions 1888 Radiator
OE-Style Radiator for Select GM Minivans
This OSC Premium radiator is built for direct replacement service in select Oldsmobile Silhouette, Pontiac Montana, and Pontiac Trans Sport applications. Part number 1888 is engineered for OES form and function with a crossflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.
- Crossflow radiator design for the listed vehicle applications
- Premium aluminum core with plastic tanks
- 1-row core construction with 1" core thickness
- Transmission oil cooler included with plated cooler type
- Die-cut gasket design to help prevent leaks
- Individually pressure tested during production
- Factory-style fitment with multi-fit engineering
- All necessary fittings or hardware are included in each unit
Built Around Factory Specifications
OSC part number 1888 is designed around OE cooler design requirements and factory-style dimensions for a clean replacement fit. Core measurements include a 30 1/2" height, 15 1/16" width, and 1" thickness, with 1 5/16" inlet and outlet diameters. The radiator uses premium-grade tubes, fins, headers, tanks, and related components to support durability, while the transmission cooler is tested before tank installation and again after assembly. This radiator cross-references APDI 8011890 and Spectra Premium CU1890 for the same application.
Vehicle Fitment
- Fits 1997-2000 Oldsmobile Silhouette, N/A, 1" Core
- Fits 1999-2000 Pontiac Montana, N/A, 1" Core
- Fits 1997-1999 Pontiac Trans Sport, N/A, 1" Core
Common Replacement Reasons
- Leaking radiator tanks or seams
- Reduced cooling performance in stop-and-go driving
- Transmission fluid temperature concerns tied to the integrated cooler
- Corrosion or age-related core deterioration
- Overheating caused by restricted coolant flow
Installation Notes
Verify core dimensions, inlet and outlet sizes, and cooler line routing before installation. This radiator is a direct-fit style replacement for the listed GM minivan applications, and the factory-style design helps simplify installation. Confirm that the vehicle uses the 1" core configuration shown in the fitment notes before ordering.
Quality Assurance
OSC radiators are individually pressure tested and built to OE-style performance standards. The radiator core is tested before assembly, the cooler is tested before installation into the tank, and the completed unit is tested again after assembly for added quality control.
Product Information
Product Information
Shipping & Returns
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Description
OE-Style Radiator for Select GM Minivans
This OSC Premium radiator is built for direct replacement service in select Oldsmobile Silhouette, Pontiac Montana, and Pontiac Trans Sport applications. Part number 1888 is engineered for OES form and function with a crossflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.
- Crossflow radiator design for the listed vehicle applications
- Premium aluminum core with plastic tanks
- 1-row core construction with 1" core thickness
- Transmission oil cooler included with plated cooler type
- Die-cut gasket design to help prevent leaks
- Individually pressure tested during production
- Factory-style fitment with multi-fit engineering
- All necessary fittings or hardware are included in each unit
Built Around Factory Specifications
OSC part number 1888 is designed around OE cooler design requirements and factory-style dimensions for a clean replacement fit. Core measurements include a 30 1/2" height, 15 1/16" width, and 1" thickness, with 1 5/16" inlet and outlet diameters. The radiator uses premium-grade tubes, fins, headers, tanks, and related components to support durability, while the transmission cooler is tested before tank installation and again after assembly. This radiator cross-references APDI 8011890 and Spectra Premium CU1890 for the same application.
Vehicle Fitment
- Fits 1997-2000 Oldsmobile Silhouette, N/A, 1" Core
- Fits 1999-2000 Pontiac Montana, N/A, 1" Core
- Fits 1997-1999 Pontiac Trans Sport, N/A, 1" Core
Common Replacement Reasons
- Leaking radiator tanks or seams
- Reduced cooling performance in stop-and-go driving
- Transmission fluid temperature concerns tied to the integrated cooler
- Corrosion or age-related core deterioration
- Overheating caused by restricted coolant flow
Installation Notes
Verify core dimensions, inlet and outlet sizes, and cooler line routing before installation. This radiator is a direct-fit style replacement for the listed GM minivan applications, and the factory-style design helps simplify installation. Confirm that the vehicle uses the 1" core configuration shown in the fitment notes before ordering.
Quality Assurance
OSC radiators are individually pressure tested and built to OE-style performance standards. The radiator core is tested before assembly, the cooler is tested before installation into the tank, and the completed unit is tested again after assembly for added quality control.












