Keystone GM3010504 OE Replacement Radiator 3.9L V6 with Transmission Cooler

The Keystone GM3010504 is an OE-style replacement radiator designed for the 2006–2009 Chevrolet Uplander and Pontiac Montana equipped with the 3.9L V6 engine. Built to restore proper engine cooling performance, this radiator features a corrosion-resistant aluminum core and durable plastic tanks engineered to match original equipment specifications.

Key Features:

• 1-Row Aluminum Core — Provides efficient heat dissipation with corrosion-resistant construction for long-term durability
• Plastic End Tanks — Lightweight, OE-style plastic tanks for precise fit and sealing
• Core Dimensions: Approximately 30.44 in. (H) × 14 in. (W) × 1 in. (thick)
• Integrated Automatic Transmission Cooler — Includes built-in transmission oil cooler; no engine oil cooler
• Inlet/Outlet Diameter: 1.31 in.; Inlet location: top right; Outlet location: bottom right
• Direct-Fit Replacement — Bolt-on installation with no modifications required

OEM & Cross-Reference Part Numbers:

• OEM: 15892121, 15211585, 15211586
• Partslink: GM3010504
• Interchange: CU2881, DPI 2881, 25813498, 15791268, 8012881

This radiator is a quality aftermarket replacement built to meet or exceed OEM fit, form, and function standards, making it a reliable choice for cooling system restoration.