Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclaimer here.
Replacing the radiator in your Buick Enclave matters because the radiator is central to preventing overheating and preserving engine life. If the radiator is damaged or underperforming you can face engine overheating, poor cabin heat, or premature component wear. This guide covers our shortlisted top picks for Buick Enclave radiators chosen for their cooling capacity, construction quality, and fitment reliability. Below we explain the criteria used to evaluate candidates and what to watch for when choosing a replacement radiator.
Looking for other parts? See all Buick Enclave parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Readair Replacement Radiator for Buick Enclave 3.6L (2008–2017) RRAD13007 |  |
| Most Popular A crowd favorite that many people choose with confidence | DWVO Radiator Compatible with Buick Enclave 3.6L V6 |  |
| Best Quality Built to a higher standard if you want something more solid | Readair Radiator with Transmission Oil Cooler for Buick Enclave 3.6L |  |
| Best Budget The cheapest option that still gets the job done reliably | AngyMeck Aluminum Crossflow Radiator for 2008–2017 Buick Enclave (3.6L V6) |  |
| Most Sold A high-volume bestseller chosen again and again | Cooling Direct Radiator for 2018–2021 Buick Enclave / 2018–2022 Chevrolet Traverse, Aluminum Core with Plastic Tanks |  |
| Best Value for Money The sweet spot between price and what you get | AlpaSpare 13007 Direct-Fit Cooling Radiator for Buick Enclave (2008–2017) |  |
| Best Overall The best all-around choice for most situations | TRQ Radiator — Direct-Fit Aluminum Core for 2018–2022 Buick Enclave 3.6L V6 |  |
1. Readair Replacement Radiator for Buick Enclave 3.6L (2008–2017) RRAD13007
| Core Material | Aluminum |
|---|---|
| Tank Material | Plastic |
| Engine Compatibility | 3.6L V6 |
| Transmission Cooler | Included |
This Readair replacement radiator is built to replace the factory unit on Buick Enclave 3.6L models from 2008 through 2017. It uses an aluminum core with plastic tanks and includes the transmission oil cooler connection, so it handles both engine cooling and automatic transmission cooling in one assembly. Typical use is a direct swap during a cooling-system repair to stop leaks, overheating, or reduced cooling efficiency. The construction and welded joints aim to provide stable sealing and long life, while the included transmission cooler port keeps installation simpler for vehicles that require it. Important limitations are that installation instructions are not included and professional installation is recommended, and the part is a factory-quality replacement rather than an original manufacturer component. Buyers should also confirm fitment before purchase to avoid ordering the wrong variant.
Best for: Reliability-focused owners who prioritize restoring stable cooling on a Buick Enclave 3.6L and want a practical, vehicle-specific replacement without sourcing OEM parts.
Less Ideal for: Drivers looking for a lifetime heavy-duty or performance racing radiator or those who prefer full-metal aftermarket cores for extreme-duty use should consider other options.
- Aluminum core for good heat transfer compared with older-style cores
- Includes transmission oil cooler connection for integrated cooling needs
- Sold as a vehicle-specific replacement that matches Enclave 3.6L fitment range
- Packaging and shipping reported to protect the radiator during transit
- No installation instructions included which can complicate DIY swaps
- Plastic tanks rather than full-metal construction may be less durable under extreme conditions
Verdict A practical, vehicle-specific replacement radiator that restores cooling for the Buick Enclave 3.6L while offering good heat transfer at a lower cost than OEM units.
2. DWVO Radiator Compatible with Buick Enclave 3.6L V6
| Engine compatibility | 3.6L V6 |
|---|---|
| Manufacturer part number | MADWVd6SxS |
| OEM part references | 15226650, 15226678, 22893857, 23434160 |
| Core material | Aluminum |
This DWVO radiator is a complete direct-fit replacement for Buick Enclave vehicles with the 3.6L V6, installed the same way as the factory unit. It is built with an aluminum core, TIG-welded joints, PA66 GF30 inlet and outlet tanks, and a brass transmission oil cooler, which together are intended to provide effective heat transfer and a sturdy connection for the transmission cooler lines. The high-density multi-louvered fins should improve cooling efficiency in daily driving and towing situations, while the treated coating and packaged foam protect the core during shipping. The unit does not include a radiator cap or temperature sensor, and DWVO recommends professional installation even though many buyers report successful DIY swaps using the original mounting hardware. Several users praise fit and cooling performance, but there are also reports of leaks at plastic seams and oil cooler fittings on some units, so inspect seals and fittings before finalizing installation. This radiator is practical for replacing a failed Enclave radiator when you want a faster, OEM-style swap at a lower cost than dealer parts.
Best for: Convenience-driven buyers who want a ready replacement that fits like the factory unit and gets their Buick Enclave back on the road quickly without sourcing dealer parts.
Less Ideal for: Buyers seeking a long-term performance upgrade or heavy-duty commercial use should consider higher-end radiators or professional-grade units designed for extreme conditions.
- Direct OEM-style fit for Buick Enclave 3.6L V6 for straightforward installation.
- Aluminum core with TIG-welded joints and multi-louvered fins for improved cooling efficiency.
- Brass transmission oil cooler and treated coating intended to increase durability and resist corrosion.
- Packaged with corner foam to protect the core during shipping and reduce damage risk.
- Does not include radiator cap or temperature sensor so additional parts may be needed.
- Some users reported leaks at plastic tank seams or oil cooler fittings on a minority of units.
- Plastic tanks may feel thinner than factory parts which could affect long-term durability in extreme conditions.
Verdict A cost-effective, direct-fit replacement for Buick Enclave 3.6L V6 owners who need a quick, factory-style swap but should inspect fittings for potential leaks before finishing installation.
3. Readair Radiator with Transmission Oil Cooler for Buick Enclave 3.6L
| Compatible engine | 3.6L |
|---|---|
| Fitment years | 2008-2017 Buick Enclave |
| Manufacturer | Readair |
| Core material | Aluminum core with brass transmission cooler |
This Readair radiator is a direct-fit replacement for Buick Enclave 3.6L models and integrates a brass transmission oil cooler into the assembly. It is intended for owners who need a complete radiator swap: you remove the old unit and bolt this one in place, reconnecting coolant and transmission lines. The core uses multi-louvered aluminum fins and TIG-welded construction for improved heat transfer and durability, while plastic tanks and a treated coating aim to resist leaks and corrosion. The built-in transmission cooler is convenient for Enclave owners who tow or do frequent highway driving because it helps keep transmission temperatures down without adding an external cooler. Installation is typical for radiator replacements and may require several hours and basic tools. Some buyers report solid long-term performance and good fitment, while a few note quality control issues with tanks on isolated units, so professional inspection after installation is prudent if you plan heavy towing.
Best for: Performance-oriented Buick Enclave owners who prioritize engine and transmission cooling under load, such as towing or frequent highway driving, and who want a factory-style integrated replacement.
Less Ideal for: Buyers seeking a lifetime worry-free part or who prefer all-metal tank radiators for maximum long-term durability should consider higher-end alternatives or professional-grade units.
- Direct-fit design for Buick Enclave 3.6L for straightforward replacement
- Integrated brass transmission oil cooler reduces need for separate cooler when towing
- High-density multi-louvered aluminum core and TIG-welded joints for improved cooling efficiency
- Treated coating and leak-tested assembly intended to resist corrosion and leaks
- Uses plastic inlet/outlet tanks which have failed on isolated units according to some user reports
- Installation can be time-consuming and may require intermediate mechanical skill
Verdict A cost-effective, direct-fit radiator that adds a built-in transmission cooler for better thermal control during towing, but plastic tanks mean occasional quality variance.
4. AngyMeck Aluminum Crossflow Radiator for 2008–2017 Buick Enclave (3.6L V6)
| Vehicle Fitment | Buick Enclave 2008-2017 |
|---|---|
| Core Material | Aluminum |
| Tank Material | Plastic |
| Special Features | Crossflow Radiator |
This AngyMeck radiator is a direct-fit, budget replacement for Buick Enclave 2008–2017 models with the 3.6L V6. It swaps into the engine-front location to replace a failed or leaking factory radiator and uses an aluminum core with plastic tanks in a crossflow layout to move heat away from the engine. In practice the design delivers balanced cooling and is space-efficient under the Enclave hood, and several buyers report straightforward installation and good fit. Notable features include leak testing at the factory and a single-row crossflow core that emphasizes cost and simplicity rather than high-performance cooling. Expect adequate temperature control for daily driving and light towing, but this unit is not an upgraded heavy-duty cooler for constant high-load use. Some users noted variations in fan mounting positions and the plastic tank construction means long-term durability may be less than a full-aluminum premium unit. For a budget replacement that restores normal cooling on a Buick Enclave, this radiator is a practical option with a few durability caveats.
Best for: Budget-conscious owners seeking an affordable, straightforward radiator replacement for routine driving and occasional light towing on a Buick Enclave.
Less Ideal for: Drivers who regularly tow heavy loads, run high-performance modifications, or want a long-life full-aluminum upgrade should consider a higher-spec radiator instead.
- Made for 2008–2017 Buick Enclave 3.6L V6 fitment so it replaces the factory unit without major modification
- Aluminum core with crossflow design improves heat transfer compared with older downflow cores
- Leak-tested at the factory to reduce chance of out-of-box failures
- Simple single-row construction keeps weight and cost down for budget repairs
- Plastic tanks instead of full-aluminum reduce long-term durability under high heat and pressure
- Single-row core limits ultimate cooling capacity for heavy towing or sustained high-load driving
Verdict A cost-focused, crossflow replacement that restores normal cooling for Buick Enclave owners but sacrifices some durability and high-load cooling compared with premium all-aluminum radiators.
5. Cooling Direct Radiator for 2018–2021 Buick Enclave / 2018–2022 Chevrolet Traverse, Aluminum Core with Plastic Tanks
| Compatible with Vehicle Type | SUV |
|---|---|
| Product Grade | Replacement Part |
| Fit Type | Vehicle Specific |
| Material Type | Aluminum, Plastic |
| Capacity | 3.6 Gallons |
This Cooling Direct radiator is a direct-fit replacement intended for 3.6L Buick Enclave owners and is built with an aluminum core and plastic end tanks. It replaces OEM part 84274378 and is marketed as a vehicle-specific unit that drops in with minimal modification when fitment is confirmed. Typical use is to restore cooling performance after a leak or failure of the original radiator; installing it returns coolant capacity and airflow to factory-style levels. Notable features include an aluminum core for heat transfer, factory-equivalent mounting points for a straightforward swap, and a stated one-year manufacturer warranty when installed by a certified mechanic. Practical benefits are easier installation compared with generic radiators and a capacity matched to the original system. Limitations include plastic tanks rather than full-metal construction, which can be less durable over many thermal cycles, and the necessity to verify fitment by VIN since multiple model years and engine variants exist. Buyers should also plan for professional installation if they want the warranty to apply.
Best for: Practical, risk-averse buyers who prioritize restoring factory-like cooling performance with a direct replacement and prefer minimal installation uncertainty.
Less Ideal for: Those seeking a long-term heavy-duty upgrade or fully metal radiator for high-mileage, high-load, or performance-modified Enclave applications should consider more robust aftermarket options.
- Vehicle-specific fitment for 2018–2021 Buick Enclave 3.6L to simplify replacement
- Aluminum core improves heat transfer compared with many all-plastic units
- Designed to match mounting points for a near drop-in installation
- Comes with a one-year manufacturer warranty when installed by a certified mechanic
- Plastic end tanks instead of full-metal construction can be less durable long term
- Fitment must be confirmed by VIN to avoid purchasing the wrong variant
Verdict A practical, vehicle-specific replacement radiator that restores factory cooling for the Buick Enclave while trading full-metal durability for a drop-in, lower-cost solution.
6. AlpaSpare 13007 Direct-Fit Cooling Radiator for Buick Enclave (2008–2017)
| Vehicle fit | Buick Enclave 2008–2017 |
|---|---|
| Material | Aluminum |
| AT/MT | AT |
| Compatible OEM numbers | 15226678;20772530;23428277;23434160 |
This AlpaSpare 13007 radiator replaces the factory unit on Buick Enclave 2008–2017 and is built as a drop-in aluminum core that aligns with original mounting points and hose connections. It is typically used as a full radiator replacement during cooling system repairs or when the original unit leaks or loses efficiency. Notable features include full direct-fit compatibility with several OEM part numbers, pressure and leak testing during production, and an aluminum construction aimed at corrosion resistance and heat dissipation. In practice the unit makes installation straightforward for a DIYer or shop because no modifications are required, and reviewers report solid cooling performance and proper fit. Limitations to expect are occasional packaging damage in transit and the need to transfer any reusable fittings or sensors if they are not included; some installers swapped inserts or reused parts during install. For a practical buyer seeking a cost-effective factory-style replacement, this radiator balances price and function, though long-term durability will depend on installation care and operating conditions.
Best for: A practical optimizer who wants a budget-friendly, factory-quality replacement that minimizes installation work and keeps their Buick Enclave on the road with OEM-like fit and function.
Less Ideal for: Buyers seeking a heavy-duty performance upgrade or custom cooling modifications should consider purpose-designed radiators with larger cores or aftermarket performance features instead.
- Direct 1:1 fitment for Buick Enclave 2008–2017 that matches original mounting points and hose locations
- Aluminum construction for improved corrosion resistance and efficient heat dissipation
- Factory-style testing reported for pressure, leak, and thermal cycling to reduce early failures
- Clear compatibility with multiple OEM part numbers simplifies part selection for this vehicle
- Some units arrive with minor cosmetic damage to fins or packaging from shipping
- Does not explicitly include small hardware or vehicle-specific sensors, which may require reuse of original parts
Verdict A cost-conscious, direct-fit aluminum radiator that restores factory-style cooling performance for Buick Enclave owners without complex installation.
7. TRQ Radiator — Direct-Fit Aluminum Core for 2018–2022 Buick Enclave 3.6L V6
| Fitment | 2018–2022 Buick Enclave 3.6L V6 |
|---|---|
| Core Row Quantity | 1 |
| Core Material | Aluminum |
| Transmission Oil Cooler | Included |
| Tank Material | Plastic |
This TRQ radiator replaces the factory unit on 2018–2022 Buick Enclave 3.6L V6 models and is intended as a one-for-one installation. It uses a single-row aluminum core with plastic tanks and includes the transmission oil cooler to match the vehicle’s original plumbing. Typical use is a like-for-like engine cooling repair when the original radiator is leaking, clogged, or damaged. Notable features from the manufacturer listing include machined aluminum core construction, factory-style inlet and outlet locations, and pre-assembled fittings that make it a direct fit without modifications. In practice that means simpler installation and restored cooling performance for everyday driving and towing demands the Enclave might see. Limitations are the single-row core, which matches stock cooling but offers less thermal reserve than multi-row performance radiators, and plastic tanks that are common at this price point and may not match the longevity of all-metal designs. Buyers should also confirm fitment for their model year and engine before purchase.
Best for: Balanced buyers who want a straightforward, factory-style replacement for routine repairs on a Buick Enclave 3.6L V6 and value ease of installation and reliable everyday cooling.
Less Ideal for: Owners seeking upgraded cooling capacity for heavy towing, track use, or long-term high-load driving should consider multi-row or performance radiators instead.
- Direct-fit design for 2018–2022 Buick Enclave 3.6L V6 reduces installation time and need for modifications.
- Aluminum single-row core provides effective stock-equivalent cooling while keeping weight and cost down.
- Includes transmission oil cooler connections matching factory routing so no extra plumbing is required.
- Pre-assembled components and manufacturer installation resources simplify DIY replacement.
- Single-row core offers less cooling headroom than multi-row or aftermarket performance radiators.
- Plastic end tanks are more vulnerable to heat-cycle degradation than full-metal tanks.
Verdict A practical, direct-fit aluminum radiator that restores factory cooling for the Buick Enclave 3.6L V6 while prioritizing ease of installation and value.
Choosing the Right Buick Enclave Radiator: Key Factors to Consider
Cooling Capacity and Core Design
Cooling capacity determines how effectively the radiator removes heat from the engine cooling loop. A radiator with a larger or more efficient core and optimized tube-and-fin geometry will move heat away from the coolant faster, reducing the risk of overheating under load or in hot weather.
Core design also affects air resistance and compatibility with the Enclave's frontal area. Multicore or high-efficiency cores can improve temperature control, but they must fit the available space and match the vehicle's fan and shroud arrangement to deliver expected performance.
Material and Corrosion Resistance
Radiator construction material influences durability and long-term performance. Aluminum cores with aluminum tanks are lighter and conduct heat well, while models with plastic tanks can be lighter and less costly but may be more vulnerable to heat cycling and age-related cracking.
Corrosion resistance is important for longevity, particularly if you drive in areas with road salt or hard water. Look for radiators with corrosion-resistant coatings, quality brazing techniques, and compatibility with recommended coolant types to avoid premature leaks.
Exact Fitment and Mounting
Correct fitment ensures the radiator aligns with the Enclave's mounting points, fan assembly, and hose connections. A radiator that requires modifications can complicate installation and affect cooling performance if the fan shroud or airflow path is altered.
Confirming exact fitment reduces installation time and the risk of misaligned hoses or bent fins. Properly matched inlet and outlet locations also prevent stress on hoses and fittings that can lead to leaks.
Thermal Stress Durability
Radiators are exposed to repeated temperature cycles that can cause expansion and contraction of joints and tanks. Durable construction and quality joining methods reduce the chance of cracks or seam failures over time.
Materials and manufacturing methods that tolerate thermal stress help maintain seal integrity during cold starts, extended idling, and high-load driving. Consider radiators with proven construction techniques to minimize the need for future repairs.
Ease of Installation and Serviceability
Radiators that align with existing hose lengths, mounting brackets, and sensor locations make installation straightforward. Units that preserve OEM-style fittings and provide clear connector alignment reduce the chance of installation errors.
Serviceability matters when you need to replace hoses, sensors, or perform a coolant flush. Radiators designed for easy access to drain plugs, petcock valves, and sensor ports can shorten service time and simplify routine maintenance.
Warranty and Support
A meaningful warranty signals confidence from the manufacturer and can protect you from early failures. Look for coverage that addresses leaks and manufacturing defects for a reasonable period.
Availability of customer support, clear installation documentation, and return procedures can save time if an incorrect unit is purchased or if you encounter issues during installation. Warranty terms also hint at expected longevity and build quality.
FAQ
How do I know if my Buick Enclave radiator is leaking?
Common signs include visible coolant puddles under the vehicle, a sweet smell in the engine bay, or consistent coolant level drops. You may also notice engine overheating or steam from the front of the vehicle under heavy load. A pressure test or visual inspection of seams and hose connections often pinpoints the leak source.
Can I replace the radiator myself on a Buick Enclave?
Many owners with basic mechanical skills can replace a radiator, since the process mainly involves draining coolant, disconnecting hoses, removing mounting hardware, and swapping the unit. However, it requires proper tools, a safe lifting method, and attention to hose routing and fan clearance. If you are unsure, professional installation reduces risk of errors.
Should I flush the cooling system when installing a new radiator?
It is usually advisable to perform a coolant flush when replacing the radiator to remove debris and old coolant that could harm the new unit. Flushing helps prevent contamination, ensures correct coolant chemistry, and promotes optimal heat transfer. Follow recommended coolant type and fill procedures for the vehicle.
What causes a radiator to overheat the engine?
Overheating can stem from inadequate cooling capacity, clogged fins or tubes, restricted coolant flow, failing thermostat, or compromised fan operation. A radiator that does not match the vehicle's cooling requirements or has internal blockages will struggle to dissipate heat effectively, especially under heavy loads or in hot ambient temperatures.
Is it better to choose an OEM-style radiator or an aftermarket unit?
OEM-style units typically match original fitment and mounting characteristics, which simplifies installation. Many aftermarket radiators offer comparable or enhanced cooling performance and different material options. The best choice depends on your priorities for exact fit, construction material, and warranty coverage.
How long should a radiator last in a Buick Enclave?
Radiator lifespan varies with material, driving conditions, and maintenance. With proper coolant maintenance and moderate driving conditions a radiator can last many years, but exposure to road salts, frequent thermal cycling, or neglected coolant can shorten its life. Regular inspections help catch issues before they lead to failure.
How We Chose the Best Buick Enclave Radiator
We focused on factors that affect real-world cooling performance and long-term reliability for the Buick Enclave. Our editorial filters emphasized cooling capacity and flow design, material and corrosion resistance, exact fitment and mounting accuracy for the Enclave, thermal stress durability, and ease of installation including hose and connector alignment. We also considered build quality aspects such as core type, tank construction, and brazing or welding methods that affect lifespan under highway and stop-start driving. We excluded products that lack clear vehicle-specific fitment information, radiators designed only for racing without proper street cooling profiles, and units with unverified manufacturing methods. Our selection favored radiators that match the Enclave's OEM mounting points and hose locations, use materials suited to mixed driving conditions, and provide documented cooling capacity appropriate for the vehicle's engine and climate demands.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a radiator for a Buick Enclave prioritize fitment accuracy, cooling capacity, and durable construction. Those factors most directly affect how well the radiator controls engine temperature and how long it will last in everyday driving. Balance ease of installation and serviceability with material choices and warranty coverage. Addressing these tradeoffs up front helps you pick a radiator that meets your driving conditions and reduces the chance of repeat repairs.
Explore More:
- Check out all Buick Enclave parts & accessories
- Explore Cooling System
- Browse all Auto Parts
