Buick shares its platforms with other GM brands — LaCrosse and Lucerne with Impala and DTS, Enclave with Traverse and Acadia, Encore with Chevrolet Trax — but Buick trims add their own lighting, trim and suspension packages. A large share of the Buick parts we quote are for 1995–2011 LeSabre, Park Avenue, Century and LaCrosse with the 3.8-liter V6, plus classics from the 1960s and 1970s, so year and engine drive the fitment.
What’s different about Buick cooling and AC parts
- 3800 V6 cars are known for leaking lower intake gaskets, cracked plastic elbow fittings on the coolant bypass, and radiators with failed plastic tanks; the water pump is belt-driven and usually replaced with the serpentine belt and tensioner.
- Enclave radiators are shared with Traverse and Acadia and vary by tow package, and the 3.6 V6 water pump and thermostat housing are common replacements; the 2008–2012 Enclave is known for leaking heater hose fittings at the firewall.
- AC compressors on LeSabre, Park Avenue and LaCrosse are conventional clutch-type units, while Enclave, Regal and Encore use variable-displacement compressors; 2017-and-newer Buicks use R-1234yf refrigerant.
Buick models we supply cooling and AC parts for
- Buick LaCrosse
- Buick Enclave
- Buick LeSabre
- Buick Encore
- Buick Park Avenue
- Buick Regal
- Buick Lucerne
- Buick Century
- Buick Electra
Don’t see yours? We quote cooling and AC parts for every Buick sold in the US — call with your VIN.
What we need to quote your Buick cooling and AC parts
- Transmission type and whether there is a tow package (changes the radiator)
- Refrigerant type on the underhood label: R-134a or R-1234yf
- Rear AC or not, on vans and three-row SUVs
- Where the coolant is going — puddle, sweet smell, or disappearing with no leak
Buick cooling and AC parts FAQ
LaCrosse, Enclave, LeSabre, Encore, Park Avenue, Regal, Lucerne, Century, Electra are the Buick models we quote most often, but we source cooling and AC parts for any Buick sold in the United States. If your model is not listed, call with the VIN and a specialist will check.
We decode your VIN and confirm transmission type and whether there is a tow package (changes the radiator); refrigerant type on the underhood label: R-134a or R-1234yf; rear AC or not, on vans and three-row SUVs; where the coolant is going — puddle, sweet smell, or disappearing with no leak. Nothing ships until a specialist has verified the part number against your exact build.
Yes — to all 50 states. Orders are processed within 1–2 business days and ship via UPS, FedEx, or USPS, typically arriving in 3–5 business days. Call +1 (888) 908-0506 for a quote that includes shipping to your ZIP code.