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Auto Shack

AutoShack Radiator for Buick, Lucerne 2006-2008, V6 3.8L

  • Based on 111 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Auto Shack
Arrives Friday, Sep 25
Order within 13 hours and 53 minutes
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Features

  • FITMENT: Exact-fit radiator for Buick, Lucerne 2006-2008, FWD V6 3.8L. Verify fitment before ordering
  • WHAT'S INCLUDED: 1 radiator. Core width: 15" (381.0 mm) | Core height: 30.5" (774.7 mm) | Core Rows: 1 | Transmission Type: Automatic Transmission | Engine Oil Cooler: No | Transmission Oil Cooler: No. Radiator cap NOT included
  • COOLING PERFORMANCE: Built to support steady coolant temperatures and reliable heat dissipation for daily driving
  • IMPORTANT FITMENT NOTES: Review engine, transmission and cooling-package details before ordering. Professional installation would be highly recommended
  • BEFORE YOU BUY: Confirm year, make, model, engine, cooling-package details and transmission details before ordering

Features

  • Brand-new radiator engineered and manufactured to meet OEM specifications for easy installation. Direct fit and built to last long with high quality aluminum core and plastic tanks preventing corrosion
  • 100% Leak Tested backed by a 6-month warranty. Package includes 1 complete radiator. No radiator cap or sensor included
  • OE / Interchange: CU2854. Core Thickness is 15/16" and Core Dimensions are 30-1/2" H x 15" W
  • Replacement for 2006-2008 Buick Lucerne 3.8L

Description

Please use Amazon's vehicle fitment tool (located at the top of the listing on desktop, below the images on mobile) to confirm that the part is correct for your vehicle application. The customer is responsible for paying the shipping costs for returns of this part if the fitment tool has not been used. Prepaid return shipping labels will not be issued by the seller for this type of error.Product Details-Transmission Type: Automatic Transmission-Core Material: Aluminum-Tank Material: Plastic-Transmission Oil Cooler: Yes-Has Engine Oil Cooler: No-Inlet Diameter: 1.38 in / 34.9 mm-Outlet Diameter: 1.56 in / 39.7 mm-Core Height: 30.5 in / 774.7 mm-Core Width: 15 in / 381 mm-Row Count: 1 Row-Type: Radiator-Color: Silver Core, Black Tank-Style: Crossflow-Material: Aluminum, Plastic-Radiator Cap Included: No-Mounting Hardware Included: No- Hardware Included: Nuts,Quick Connect Fittings-Fitment Type: Direct ReplacementSix month warranty on all AutoShack parts.Please Note - AutoShack does not provide free return shipping. Return Shipping cost is only covered in the event of an AutoShack error.


Manufacturer: ‎Auto Shack


Brand: ‎Auto Shack


Item Weight: ‎11 pounds


Package Dimensions: ‎38.6 x 19.3 x 6.7 inches


Manufacturer Part Number: ‎RK1506


Date First Available: February 21, 2014


Manufacturer: ‎Auto Shack


Brand: ‎Auto Shack


Item Weight: ‎9.7 pounds


Package Dimensions: ‎38.2 x 18.9 x 6.3 inches


Item model number: ‎RK1506


Exterior: ‎Aluminum, Plastic


Manufacturer Part Number: ‎RK1506


OEM Part Number: ‎2854, 41-2854A, CU2854


Date First Available: February 21, 2014


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Perfect Fit for My 2006 Buick Lucerne CX Outstanding Customer Service!
I ordered the AutoShack Radiator (15" core) for my 2006–2008 Buick Lucerne CX, and while the first unit I received had an issue, the way the company handled it absolutely earned a full 5‑star rating. The radiator itself fits the Lucerne perfectly, lines up with the factory mounts, and restores proper cooling without any leaks or temperature swings. The build quality feels solid, and once installed, the car ran noticeably cooler and smoother. But what really impressed me was the Customer Service. When I reached out about the issue with the first radiator, they responded quickly and professionally. They didn’t give me the runaround or make the process difficult. Instead, they immediately shipped out a replacement via FedEx, and it arrived at my door in just two days. That kind of fast, no‑hassle support is rare these days. The radiator works great, but the Customer Service deserves just as much praise. They handled everything quickly and professionally, turning a frustrating situation into a positive experience. I’d definitely buy from AutoShack again. NOTE: The Radiator got a Pin Hole Leak after about a Month. But They did make it right. Thank You AUTOSHACK!! ... show more
Reviewed in the United States on March 19, 2026 by Orlando C.
    • Would recommend great buy
Would recommend had two different cars take the same radiator brought two radiators from this vendor and they both are great thank you. Will continue to shop.
Reviewed in the United States on July 23, 2026 by Joe kane
    • Fits 2006 Buick Lucerne 3800
This "AutoShack Radiator 15" (381.0 mm) Core Replacement for 2006-2008 Buick Lucerne 1-PC" fit my 2006 Buick Lucerne 3800. No problems good price.
Reviewed in the United States on December 14, 2025 by David Big
    • Great product
Runs great easy replacement
Reviewed in the United States on April 15, 2025 by James mcknight
    • Time on replacement
2006 Buick Lucerne radiator correct. Expect to spend time disassembly and assembly.
Reviewed in the United States on August 26, 2026 by Amazon Customer
    • Works Great!
This was a quality part with an easy install in my car.
Reviewed in the United States on May 16, 2026 by Sherri Rigsby
    • Just what we wanted
Perfect fit
Reviewed in the United States on September 22, 2025 by william c pearsall jr
    • Fits 2007 Buick Lucerne
Very well packaged and appears to be good quality. Remember to take all of the fasteners off of the radiator you are replacing. If the transmission coolant lines are corroded, clean them up and polish them or you will have a hard time fitting the lines into the new radiator.
Reviewed in the United States on November 21, 2022 by Steven S

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