Overview
Buick LaCrosse oil filter supports stable lubrication across GM mid-to-full size sedan platforms.
For this reason, Buick specifies controlled filtration performance for this component.
The filter regulates oil flow while retaining contaminants generated during engine operation.
As a result, internal engine components receive cleaner and more consistent lubrication.
Vehicle Compatibility and Applications
Buick applies this oil filter across multiple LaCrosse generations.
This OE oil filter is widely used across multiple GM platforms, including Buick and Cadillac passenger vehicles with compatible petrol engines.
Typical vehicles include Buick LaCrosse models produced between 2010 and 2021.
Moreover, these vehicles use several petrol engine configurations.
Mainstream applications include naturally aspirated and turbocharged 2.0L engines.
In addition, the lubrication system shares architecture with other GM global sedan platforms.
Material and Structural Design
The filter housing uses corrosion-resistant steel material.
Therefore, the exterior maintains structural strength under oil pressure and temperature changes.
A precision-threaded metal base ensures secure installation.
At the same time, the sealing surface supports stable contact with the engine block.
This structure supports consistent fitment during repeated service intervals.
Filtration Stability and Engine Protection
Modern petrol engines require stable oil circulation.
For this reason, the filter supports consistent oil pressure during cold starts.
As a result, wear on bearings and valve train components remains controlled.
Moreover, effective filtration helps protect variable valve timing systems.
This balance supports predictable engine performance in daily driving conditions.
OE Reference Integration
General Motors assigns OE number 12640445 to this oil filter.
This OE reference corresponds to ACDelco PF63E specifications.
It appears across multiple GM petrol engine applications, including Buick LaCrosse.
However, engine-specific verification remains necessary before installation.
Maintenance and Replacement Guidance
Engine oil quality degrades with mileage and operating conditions.
Therefore, technicians replace the oil filter during every scheduled oil change.
GM service schedules typically align replacement with standard oil service intervals.
As a result, regular replacement supports long-term engine reliability.
Always follow official Buick maintenance documentation.
Installation and Fitment Notes
This oil filter installs directly onto factory mounting threads.
Moreover, original sealing surfaces remain unchanged during installation.
No modification to surrounding components is required.
Consequently, installation remains straightforward for professional technicians.
