CU1889 Radiator Compatible with 1997-2003 Grand Prix - Durable Fit
CU1889 Radiator Compatible with 1997-2003 Grand Prix - Durable Fit
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In this review of the CU1889 radiator, the bottom line is simple: it is a straightforward, robust replacement for late 1990s and early 2000s GM cars where fit and cooling performance matter. The reviewer found it most valuable for owners who need an OE standard, direct-fit radiator for models such as the 1997-2003 Grand Prix and 1997-1999 Century. Installation is described as easy by multiple customers, and the radiator's construction-thickened aluminum with PVC tanks and high-density multi-louvered fins-gives confidence that it will resist corrosion and manage heat without deforming under normal conditions.
Key Features
- Wide vehicle compatibility: Covers many GM models including Grand Prix, Century, Regal, Montana, Venture and others, making it a convenient replacement for those specific years.
- OE standard quality: Built to meet OE standard and quality levels so buyers can expect a direct-fit replacement that aligns with original cooling system expectations.
- Durable materials: Thickened aluminum core and PVC tanks resist corrosion and are less likely to deform when exposed to engine heat over time.
- Cooling efficiency: High-density multi-louvered fins increase air flow and heat dissipation for improved engine temperature control.
- Specific dimensions: Core width and height match vehicle requirements with a core thickness suited for standard cooling systems, simplifying installation.
Who It's For
This radiator is best for owners of the listed GM models from the late 1990s to early 2000s who want a like-for-like replacement that meets OE standards and is straightforward to install. It appeals to DIY mechanics and independent shops replacing a failed or leaking radiator and seeking a product that fits without extensive modification.
Drivers with non-listed models, custom cooling setups, or those who need performance racing radiators should look elsewhere. Also, buyers who require stainless steel or entirely different tank materials for extreme conditions may prefer a different design.
Pros & Cons
Pros
- Direct compatibility with many GM vehicles from 1997-2003 ensures a proper fit for common replacement needs.
- Sturdy construction of thickened aluminum and PVC provides corrosion resistance and reliable thermal performance.
- High-density multi-louvered fins deliver effective cooling for typical street use.
- Customers report good value for money and straightforward installation in compatible vehicles.
Cons
- Uses PVC tanks rather than all-aluminum construction, which some buyers may prefer to avoid for extreme long-term durability.
- Intended as a direct OE-style replacement, not a high-performance racing upgrade.
Specifications
| Core Width | 30-7/16 in |
| Core Height | 14-7/8 in |
| Core Thickness | 5/8 in |
| Inlet Diameter | 1-5/16 in |
| Outlet Diameter | 1-5/16 in |
| Materials | Thickened aluminum core with PVC tanks |
| Replacement Part Numbers | CU1889 and multiple listed OE cross numbers |
Our Verdict
The CU1889 radiator is a solid, cost-effective replacement for the specified GM models, offering OE standard fit and dependable cooling thanks to its aluminum core and high-density fins. For most owners of Grand Prix, Century, Regal, Montana, Venture and the other listed vehicles, it represents good value and an easy installation that restores original cooling performance.
Frequently Asked Questions
Will this radiator fit my 1999 Grand Prix?
Yes, the CU1889 is listed as compatible with 1997-2003 Grand Prix models and is intended as a direct-fit replacement.
What materials are used in construction?
The radiator uses a thickened aluminum core with PVC tanks and high-density multi-louvered fins for cooling efficiency.
Is installation difficult for a DIYer?
Customers report that installation is generally easy and straightforward for those familiar with radiator replacement on the listed vehicles.
Editor's Take
The CU1889 is a reliable OE-standard radiator for many late 1990s and early 2000s GM models, providing durable aluminum construction, efficient cooling fins, and straightforward installation at good value.

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