Radiator for Buick Enclave (2008-2017) 3.6L

Direct-Fit Replacement Radiator for 2008-2017 Buick Enclave (Lambda)

What it Does: The replacement radiator restores OE-spec thermal rejection on the 2008-2017 Buick Enclave to stabilize operating temperatures and prevent catastrophic engine overheating under load.

The Stock Buick Enclave Cooling System Vulnerability

The first-generation Lambda crossover platform subjects its cooling package to demanding duty cycles, exacerbated by towing capacities up to 4,500 lbs and congested stop-and-go driving. Over time, recurring thermal expansion cycles degrade the factory radiator's crimped plastic end tanks, causing micro-fracturing along the header plate seams. Compounding this, coolant passage scaling and debris accumulation inside the narrow factory single-row core impede thermal conductivity, precipitating elevated coolant temperatures. When operating temperatures consistently spike past normal thresholds, the high-compression High Feature (LY7 / LLT) 3.6L V6 is exposed to severe cylinder head warpage, blown multi-layer steel (MLS) head gaskets, and contaminated automatic transmission fluid via breached internal oil cooler circuits.

The Engineering Solution

Engineered to original equipment dimensional tolerances, this drop-in replacement radiator features a brazed aluminum core fitted with high-density louvered cooling fins designed to maximize surface area and convective heat dissipation. High-grade PA66 glass-reinforced polyamide tanks are mechanically crimped with vulcanized gaskets to guarantee pressure integrity under continuous high-temp operating conditions. An integrated internal transmission oil cooler provides consistent hydraulic fluid thermal regulation for the 6T75 6-speed automatic transaxle. Every unit undergoes rigorous submerged pneumatic pressure testing to prevent leak paths prior to delivery, dropping directly into factory mounting isolators and matching OEM connection points without bracket modification.

What's Included

• 1 Radiator (with integrated transmission oil cooler)

Technical Specifications

Compatibility

• 2008-2017 Buick Enclave 3.6L V6 (Front-Wheel Drive)
• 2008-2017 Buick Enclave 3.6L V6 (All-Wheel Drive)
• Also compatible with sister GM Lambda models: Chevrolet Traverse, GMC Acadia, Saturn Outlook

Frequently Asked Questions & Fitment Warnings

Does this fit the Lambda Enclave?

Yes, this is a direct fit for the 2008-2017 Buick Enclave equipped with the 3.6L V6 engine across both FWD and AWD drivetrains.

Do I need to bleed the cooling system after replacement?

Yes, you must thoroughly bleed trapped air from the system after refilling with approved Dex-Cool to prevent hot spots and ensure proper coolant circulation through the heater core and engine block.

The Buick Durability Standard

Built to handle heavy passenger payloads and sustained towing duty, this replacement cooling unit delivers reliable thermal capacity to protect your GM powertrain under extreme operating loads.