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Choosing the right oil cooler for your Buick LaCrosse can protect the engine and maintain performance, especially during heavy use or extended drives. You want a unit that fits the vehicle, offers reliable heat rejection, and is simple to service. This guide covers the top shortlisted oil coolers for the Buick LaCrosse and explains the criteria we used to evaluate them, like cooling capacity and installation compatibility. Read on to find options suited to daily driving, towing, or spirited use, and then dive into the full list of picks.
Looking for other parts? See all Buick LaCrosse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | CYTROBE Engine Oil Cooler and Filter Housing Assembly with Gasket |  |
| Most Popular A crowd favorite that many people choose with confidence | MITZONE Aluminum Coolant Housing Assembly with Hoses and Sensor |  |
| Best Quality Built to a higher standard if you want something more solid | A-Premium Aluminum Engine Oil Cooler and Filter Housing Assembly Kit |  |
| Best Budget The cheapest option that still gets the job done reliably | NEWZQ Engine Oil Cooler Housing Assembly with Oil Filter and Gaskets |  |
| Most Sold A high-volume bestseller chosen again and again | BELKEBIR Aluminum Engine Oil Cooler & Filter Housing (3.6L) |  |
| Best Value for Money The sweet spot between price and what you get | MITZONE Engine Oil Cooler Filter Housing Assembly with Gaskets and Filter Insert |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY 19-Row Universal Stacked-Plate Oil Cooler Kit |  |
1. CYTROBE Engine Oil Cooler and Filter Housing Assembly with Gasket
| Compatible with Vehicle Type | Chevy, Buick, Pontiac, Saturn |
|---|---|
| Replaces Part Numbers | 25199751, 918-432, 918432, 93186324, 55353323 |
| Material Type | Aluminum |
| Thread Size | 16mm x 1.5mm |
This CYTROBE assembly combines the oil cooler and filter housing into a single replacement unit intended for direct installation on compatible 1.6L and 1.8L GM engines. It is made from corrosion-resistant aluminum and ships with the main housing and an oil filter, which simplifies a common failure repair by replacing both the cooler and filter mount at once. Typical use is as a like-for-like service part when the factory housing leaks or the oil cooler develops internal failure. Buyers will appreciate the included gasket and bolts and the manufacturer listing multiple OEM-equivalent part numbers for fit confirmation. Common limitations from user reports include missing smaller O-rings or coolant hose gaskets on some units, so expect to verify gasket kit completeness before installation. While not an OEM-branded part, the aluminum construction and vehicle-specific fit make it a practical, affordable option for a reliability-focused repair when a factory-quality replacement is needed without extensive modification.
Best for: Reliability-focused buyers who prioritize replacing a failing oil cooler/housing with a durable, vehicle-specific replacement to restore leak-free operation and avoid repeated repairs.
Less Ideal for: If you need a guaranteed factory-branded component or a complete gasket kit every time, consider sourcing a factory-quality part or a kit that explicitly lists every gasket and O-ring included.
- Aluminum construction resists corrosion and is suited for long-term engine service.
- Supplies both oil cooler and filter housing as a single direct-replacement unit to simplify repairs.
- Lists multiple OEM-equivalent part numbers to help confirm correct fitment.
- Includes gasket and bolts with the main assembly to reduce additional parts sourcing.
- Some listings and buyer reports indicate smaller O-rings or coolant hose gaskets shown in images may not always be included.
- Not an OEM part so subtle fit or finish differences compared with factory units are possible.
Verdict A durable, vehicle-specific aluminum oil cooler and filter housing that offers a cost-effective, reliability-focused replacement though buyers should confirm small gasket/O-ring completeness before installation.
2. MITZONE Aluminum Coolant Housing Assembly with Hoses and Sensor
| Manufacturer Part Number | 001-477ALU-B |
|---|---|
| OEM Part Number | 13251447, 25193922, 55565334, 55596898, 902-846 |
| Exterior | Aluminium |
| Position | Inside |
This MITZONE coolant housing replaces the factory plastic water outlet with a one-piece aluminum housing and ships with a thermostat, bolts, inlet hose, oil cooler hose, sensor plug and gasket to complete the job. It is intended for direct replacement on compatible 1.4L models and is typically used when the original plastic outlet leaks or fails; buyers install it while draining and refilling the cooling system and reconnecting heater and oil cooler lines. The aluminum construction reduces the risk of cracking under heat and lets you torque connections more securely. Included hoses and the temperature sensor make this a near plug-and-play repair for a single visit, and many owners report straightforward fitment and quick installation with common hand tools. Some users experienced leaks at specific hose junctions or length differences that required minor routing adjustments, so double-check hose seating and use correct torque on fasteners. Quality of supplied fasteners and sensor has mixed feedback, so have the factory parts handy if you prefer OEM fasteners or need a verified sensor swap.
Best for: Buyers focused on convenience who want a single-purchase repair kit that replaces the leaking plastic outlet and restores cooling system integrity with minimal parts sourcing and garage time.
Less Ideal for: Do-it-yourselfers who prefer using only factory-sourced components or shops that require OEM-specified fasteners and sensors should consider sourcing those parts separately before installing this kit.
- Aluminum housing is more heat-resistant and less likely to crack than the original plastic outlet.
- Comes as a complete kit including thermostat, temperature sensor, gaskets and hoses for one-stop replacement.
- Many users report straightforward fit and installation with common tools and no modification.
- Replaces multiple OEM part numbers making fitment clear for compatible 1.4L Buick/Chevrolet models.
- Some customers reported leaks at hose junctions after installation, indicating variable seal quality or fitment tolerance.
- Supplied fasteners and temperature sensor have mixed reliability in user reports and may need replacement with factory-quality parts.
Verdict A convenient all-in-one aluminum replacement water outlet kit that upgrades the fragile plastic housing for many 1.4L Buick/Chevrolet models but verify hose seals and consider swapping supplied fasteners or sensor if you need factory-grade parts.
3. A-Premium Aluminum Engine Oil Cooler and Filter Housing Assembly Kit
| Material | Aluminum |
|---|---|
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 918-432, 918432, 93186324, 25199751, 55353323 |
This assembled kit replaces the engine oil cooler and filter housing on compatible GM 1.6L/1.8L engines and arrives with the cooler, housing, oil filter, gaskets, cap, sealing rings and fastening bolts pre-assembled. It is typically used when an original housing leaks or when upgrading to an aluminum cooler to help control oil temperatures. The aluminum construction aids heat dissipation and the included filter and seals make it a mostly complete swap, which simplifies installation for a DIYer or shop and reduces parts hunting. Several buyers report solid fit and immediate stop of oil leaks when installed. Limitations to keep in mind are that a few small coolant transfer tube O-rings are not included and may need to be purchased separately, and some cosmetic roughness at edges has been noted though it does not prevent sealing. For a convenience-minded buyer maintaining a LaCrosse, this kit streamlines the repair but you should verify part numbers against your original housing before ordering and have extra small O-rings on hand to finish the job without delays.
Best for: Convenience-driven owners who prioritize a ready-to-install, mostly complete replacement to quickly repair an oil cooler leak and get their Buick LaCrosse back on the road with minimal parts sourcing and downtime.
Less Ideal for: Owners seeking a factory-branded OEM part or those who want every small coolant seal included should consider alternative sources or purchase additional O-ring kits before starting work.
- Complete kit arrives pre-assembled with cooler, housing, filter, gaskets, cap and bolts for a faster install.
- Aluminum cooler improves thermal management versus some cast alternatives.
- Multiple customer reports of good fit and successful leak repair on compatible GM engines.
- Includes the oil filter so you replace the filter during installation without extra purchases.
- Does not include certain small coolant transfer tube O-rings that some installations require.
- Some edges reported as slightly rough, requiring light clean-up during installation.
Verdict A convenient, mostly complete aluminum replacement kit that simplifies oil cooler housing repairs on compatible GM 1.6L/1.8L engines if you confirm fitment and bring a couple of extra small O-rings.
4. NEWZQ Engine Oil Cooler Housing Assembly with Oil Filter and Gaskets
| Product Grade | Replacement Part |
|---|---|
| Compatible with Vehicle Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
This NEWZQ oil cooler housing assembly is a budget replacement that combines the cooler housing, oil filter and gaskets into a single kit intended as a direct swap for compatible GM four-cylinder engines. In practice it is used to restore oil cooling and stop leaks where a cracked housing or failed cooler has caused oil pressure or overheating issues. The listing emphasizes vehicle-specific fit and a precise mold to match factory dimensions, and customer feedback indicates it fits and functions as a replacement. For a cost-conscious repair it simplifies the job by including seals and the filter so you can replace the whole assembly in one service. Limitations are typical of aftermarket budget parts: long-term durability compared with factory-quality components is uncertain and installers should verify part numbers and visual match before installation to avoid fitment or hose connection issues.
Best for: Budget-conscious owners seeking an affordable, all-in-one replacement oil cooler assembly who prioritize getting the vehicle back on the road with minimal parts sourcing hassle.
Less Ideal for: Owners looking for a heavy-duty performance upgrade or guaranteed factory-quality longevity should consider OEM or higher-end aftermarket options instead.
- Complete kit includes housing, oil filter and gaskets for one-stop replacement
- Sold as a vehicle-specific replacement designed to match factory dimensions
- Can resolve oil leaks and oil temperature issues by replacing worn or damaged cooler assembly
- Positive user reports of accurate fit and straightforward swap
- Long-term durability and material quality may not match factory-quality parts
- Requires careful verification of part numbers and visual fit before installation
Verdict A cost-effective, all-in-one replacement kit that makes a quick repair possible but may not match OEM longevity.
5. BELKEBIR Aluminum Engine Oil Cooler & Filter Housing (3.6L)
| Brand | BELKEBIR |
|---|---|
| Model | Oil cooler 926-959 |
| Manufacturer Part Number | 5184294AE |
| Item Weight | 4.8 pounds |
This aluminum engine oil cooler and filter housing replaces the plastic factory housing for 3.6L engines and is intended as a direct-fit replacement with an included filter and gaskets. In practice it is used when the factory housing has developed leaks or when upgrading to a more corrosion-resistant component; the aluminum construction reduces expansion and contraction compared with plastic housings and can help prevent recurrent leaks. Installation is a moderate job that typically requires removal of hoses, sensors, and the old housing then reassembly with the supplied gaskets and filter. Buyers report reliable fitment and fewer leaks after installation. The unit lists many factory part numbers it replaces and ships with an oil filter and intake gaskets to simplify the repair. Limitations are that this is a substantial repair for a DIYer and may take several hours and basic tools, and compatibility must be confirmed for your specific vehicle variant before purchase since the listing targets 3.6L engines only.
Best for: Risk-averse mainstream buyers who prioritize a durable, factory-style repair that reduces the chance of repeat leaks and want a ready-to-install replacement rather than an experimental fix.
Less Ideal for: Owners looking for a quick roadside fix or those unwilling to commit to a multi-hour repair should consider a professional installation or alternative solutions.
- Aluminum construction reduces corrosion and thermal expansion compared with plastic housings
- Includes oil filter and intake gaskets to make the replacement more convenient
- Manufactured as a direct replacement designed to match factory mounting points and sensors
- Replaces a long list of factory part numbers for easier parts cross-reference
- Replacement requires several hours of labor and moderate mechanical skill for proper installation
- Fitment covers 3.6L engines only so compatibility needs verification for your exact vehicle
Verdict A durable aluminum replacement oil cooler and housing that aims to stop recurring leaks on 3.6L engines but requires a time-consuming repair to install.
6. MITZONE Engine Oil Cooler Filter Housing Assembly with Gaskets and Filter Insert
| Material | Aluminum |
|---|---|
| Thread Size | M20 x 1.5 |
| Vehicle Service Type | Fits 1.4L turbo Buick Encore and similar 1.4L applications |
| Number of Items | 1 |
This kit replaces the oil cooler and filter housing with a single aluminum assembly that comes with gaskets, a cap, and a preinstalled filter insert. It is intended to be used as a vehicle-specific replacement part during engine service or when the stock housing leaks or corrodes. The aluminum construction and included seals mean you can swap the entire unit in one job rather than sourcing multiple parts, which speeds install and reduces time at the shop. Buyers report generally good fit and fitment for compatible engines, and the preinstalled filter saves a step during installation. However some users reported quality-control failures and missing or damaged seals, so inspect the kit before install and have replacement O-rings on hand. The kit does not include extra fasteners and long-term durability varies by unit, so professional installation and careful torqueing of mating surfaces are advisable.
Best for: Practical optimizers who prioritize getting a full, ready-to-install replacement that cuts repair time and avoids buying multiple separate parts.
Less Ideal for: Buyers seeking an exact factory-brand part or guaranteed long-term reliability without professional inspection should consider OEM sources or a shop-supplied assembly instead.
- Complete kit includes oil cooler, housing cap, preinstalled filter insert and multiple gaskets for one-step replacement.
- Aluminum construction is corrosion-resistant compared with some plastic housings and can improve longevity.
- Vehicle-specific fit reduces the need for modifications and simplifies installation.
- Preinstalled oil filter saves time and avoids an extra parts purchase.
- Some customers reported missing or damaged seals and occasional fitment quality-control issues.
- Does not include replacement fasteners, so originals may need re-use or sourcing separately.
- Reported cases of early failure on a minority of units suggest inconsistent quality control.
Verdict A convenient, lower-cost complete housing and oil cooler kit that speeds repair for compatible 1.4L turbo vehicles but requires pre-install inspection because quality control can vary.
7. EVIL ENERGY 19-Row Universal Stacked-Plate Oil Cooler Kit
| Rows | 19 |
|---|---|
| Oil capacity | 0.45 L |
| Test pressure | 116 PSI |
| Burst pressure | 232 PSI |
This EVIL ENERGY 19-row stacked-plate oil cooler kit is a bolt-on style solution that cools engine oil (and can be used for transmission or differential oil) by routing oil through an external aluminum cooler and braided hoses. For a Buick LaCrosse, it is typically mounted where airflow is available — front support or behind the grille — and connected via the sandwich adapter to the oil filter housing or inline with existing lines. The kit includes a compact aluminum cooler, two nylon-braided hoses rated for high pressure and a sandwich-style adapter for installation. Practical benefits include noticeably lower oil temps when airflow is good and relatively compact packaging that fits into tighter engine bays. Limitations to plan for are fitment variability on LaCrosse model years because the sandwich fitting and included brass adapters may not match every factory oil filter housing, and the kit does not include universal mounting brackets so some fabrication or aftermarket brackets are often needed. Hardware quality is generally acceptable for the price but some users report stripped bolts and tight AN fittings that take care to install.
Best for: Balanced owners focused on improving oil temperature control on a Buick LaCrosse who value a reasonably priced, adaptable cooling solution and are comfortable with moderate DIY work or minor fabrication.
Less Ideal for: Buyers seeking a completely plug-and-play, vehicle-specific kit with guaranteed fit and included mounting brackets should look for a LaCrosse-specific cooler kit or professional installation options.
- High cooling capacity from a 19-row stacked-plate core for meaningful oil temp reduction under load
- Includes nylon-braided hoses with CPE inner layer rated for high working pressure and wide temperature range
- Compact cooler profile that can fit into limited space in the LaCrosse engine bay
- Works for engine, transmission, or differential oil so it is versatile for different cooling needs
- Sandwich adapter and included brass fittings may not fit all Buick LaCrosse oil filter housings without additional adapters
- No universal mounting hardware included so custom brackets or drilling may be required
- Some fasteners and fittings are reported as lower-quality and can strip if over-tightened
Verdict A compact, versatile 19-row oil cooler that can cut oil temperatures on a Buick LaCrosse at a budget-friendly price but may require fittings and mounting work for a proper install.
Choosing the Right Buick LaCrosse Oil Cooler: Key Factors to Consider
Cooling Capacity
Cooling capacity determines how effectively an oil cooler reduces and stabilizes oil temperature during different driving conditions. Higher capacity units will maintain lower oil temperatures under heavy loads such as towing or spirited driving, which can prolong oil life and protect internal engine components.
Consider the expected duty cycle for the Buick LaCrosse. Daily commuting with occasional highway runs requires less cooling than regular towing or performance driving. Oversized coolers can lead to overcooling in mild climates, so choose a capacity that matches typical use.
Fitment and Mounting
Correct fitment matters because an oil cooler must integrate with the LaCrosse's available mounting points and space constraints. A unit that requires major fabrication increases installation time and the risk of improper mounting, which can lead to vibrations and premature failure.
Look for models that offer vehicle-specific brackets or straightforward mounting options. Consider clearance around other components, routing of oil lines, and accessibility for future maintenance when evaluating fitment.
Connection Type and Compatibility
Connection type determines how the cooler links to the engine's oil system. Some use sandwich-style adapters at the filter housing, while others require inline hose connections. Compatibility with factory oil passages or filter adapters reduces installation complexity and the chance of leaks.
Verify thread sizes, adapter fittings, and whether the system uses reusable fittings or crimped hose ends. Choosing a cooler with compatible connections with the Buick LaCrosse minimizes the need for additional adapters or specialized tools.
Material and Construction Quality
Material quality affects durability, corrosion resistance, and heat transfer. Common materials include aluminum for the core and brazed or welded seams for strength. A well-constructed core resists cracking from thermal cycles and road vibration, reducing the chance of internal or external leaks.
Inspect specifications for core type, brazing or welding methods, and whether the unit includes protective coatings. Higher-quality construction typically yields longer service life, especially in environments with road salt or frequent temperature changes.
Serviceability and Maintenance
Serviceability covers how easy it is to inspect, clean, and repair the cooler and its fittings. Units that allow external access to fittings and that use common hose sizes simplify routine maintenance and reduce downtime if a hose requires replacement.
Consider whether replacement cores or lines are readily available and how easy it is to flush the cooler if contaminants accumulate. Good serviceability helps keep long-term ownership costs lower and maintains cooling performance.
Pressure Rating and Leak Resistance
An oil cooler must withstand the oil system pressures generated by the Buick LaCrosse engine without leaking. Higher pressure ratings and robust seals reduce the risk of oil loss and contamination of other engine compartments.
Examine the specifications for maximum working pressure, the type of sealing used at fittings, and whether the design isolates oil passages to prevent cross-contamination. Reliable sealing minimizes maintenance and supports safe operation under varied driving conditions.
FAQ
How do I know if my Buick LaCrosse needs an oil cooler?
Symptoms that suggest the need for an oil cooler often include consistently high oil temperatures during heavy loads, frequent temperature spikes, or operating in hot climates or while towing. If you routinely see elevated oil temp readings or notice reduced oil life, adding or upgrading an oil cooler can help stabilize temperatures and protect the engine.
Can I use a universal oil cooler on a Buick LaCrosse?
Universal coolers can work but often require custom brackets, fittings, or hose routing to fit the LaCrosse. They may be a good option if you are prepared to fabricate mounts and adapt connections. For most owners, a cooler with confirmed fitment or available adapter kits reduces complexity and the chance of installation errors.
What are common signs of an oil cooler leak?
Common signs include visible oil on nearby components, unexplained oil loss, or a sudden drop in oil pressure. In some cases you might also see contamination in coolant if an internal failure allows cross-leakage. If you suspect a leak, inspect lines, fittings, and the cooler core for wetness and address it promptly to avoid engine damage.
Will adding an oil cooler affect oil pressure in my Buick LaCrosse?
Adding a properly sized oil cooler typically has a minimal effect on system pressure when installed with correct hose diameters and fittings. Excessively long or restrictive lines can cause pressure drops, so it is important to use recommended hose sizes and maintain smooth routing to preserve pressure and flow.
How difficult is oil cooler installation on a Buick LaCrosse?
Difficulty varies by design. Options that use an oil filter sandwich adapter are generally easier and faster to install than systems requiring inline hose connections or custom mounts. Installation usually involves routing lines, securing the cooler, and bleeding any trapped air. Some installations are within the scope of a competent DIYer, while others may be best handled by a technician.
Can an oil cooler help when towing with a Buick LaCrosse?
Yes. Towing increases engine load and oil temperatures, and a properly sized cooler can reduce thermal stress on the oil and internal components. Choose a cooler with adequate capacity and ensure it is mounted for good airflow to maximize effectiveness during sustained towing.
How We Chose the Best Buick LaCrosse Oil Cooler
We focused on solutions that are specifically suitable for the Buick LaCrosse platform and prioritized components that address common thermal needs without requiring extensive modifications. Evaluation criteria included cooling capacity under sustained load, fitment and mounting compatibility with the LaCrosse engine bay, material durability to resist corrosion and leaks, and serviceability for routine maintenance and potential repairs. We also considered the quality of included fittings and hoses, the ease of installation when using factory connections, and overall reliability based on typical user experience for similar parts. Products were excluded if they lacked clear fitment data for Buick LaCrosse models, relied on one-off fabrication for mounting, or used substandard materials prone to early failure. The goal was to highlight options that balance performance, longevity, and straightforward integration into the vehicle.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize fitment compatibility and sufficient cooling capacity when choosing an oil cooler for your Buick LaCrosse. Match the cooler to your typical driving demands, whether that is daily commuting, towing, or extended high-speed runs, and check that the connections and mounting will integrate cleanly with the vehicle. Balance material quality and serviceability against installation complexity. A well-chosen cooler can reduce oil temperatures, extend oil life, and provide more consistent engine protection with minimal ongoing maintenance.
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