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Choosing the right oil cooler for your Chrysler 300 affects engine temperature management, component longevity, and performance under heavy use. If you drive frequently in hot climates, tow heavy loads, or push the engine hard, a properly matched oil cooler can reduce operating temperatures and help prevent oil breakdown. This guide covers seven shortlisted oil cooler options that meet common fitment and performance requirements for the Chrysler 300. We evaluated thermal capacity, build quality, and ease of installation to help you pick the best fit for your driving needs.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | YITHSWAY Aluminum Engine Oil Cooler and Filter Housing Assembly (3.6L) |  |
| Most Popular A crowd favorite that many people choose with confidence | Somusen Aluminum Engine Oil Cooler and Filter Housing Kit |  |
| Best Quality Built to a higher standard if you want something more solid | TEMSONE Full Aluminum Engine Oil Filter Housing and Oil Cooler Kit with Gaskets & Sensors |  |
| Best Budget The cheapest option that still gets the job done reliably | MILIPARTS Aluminum Oil Cooler and Filter Housing Kit |  |
| Most Sold A high-volume bestseller chosen again and again | GAOBEN 926-876/926-959 Aluminum Engine Oil Filter Housing with Cooler |  |
| Best Value for Money The sweet spot between price and what you get | B.ZSSY Aluminum Engine Oil Cooler and Filter Housing Assembly |  |
| Best Overall The best all-around choice for most situations | MNJWS Aluminum Oil Filter Housing and Oil Cooler Kit for 3.6L Pentastar |  |
1. YITHSWAY Aluminum Engine Oil Cooler and Filter Housing Assembly (3.6L)
| Material | Aluminum |
|---|---|
| Thread Size | M16 x 1.5 |
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
This YITHSWAY assembly replaces the fragile plastic oil cooler and filter housing on 3.6L Pentastar engines and is intended as a direct replacement for vehicles like the Jeep Grand Cherokee. It combines a machined aluminum cooler and housing with the oil filter, pressure and temperature sensors, O-rings, gaskets, and mounting bolts so you get a ready-to-install kit. In practice the aluminum construction resists heat and corrosion better than the factory plastic piece, which reduces the chance of future cracking and oil leaks. Install is typical for this service item: drain oil, remove the old housing, transfer lines and sensors, fit the new seals and torque to spec, then refit and refill. The included sensors and complete gasket set simplify the job, but buyers should still follow proper sealing and torque procedures and bleed any related systems. This is a strong retrofit option for owners who want improved durability over the original plastic part, though long-term reliability depends on correct installation and maintenance of the cooling and sealing systems.
Best for: Risk-averse mainstream buyers who prioritize preventing repeat oil leaks and prefer a durable, ready-to-install replacement that reduces the chance of future breakdowns.
Less Ideal for: Buyers who plan major engine upgrades or who prefer OEM-sourced factory replacement parts should consider other options.
- Aluminum construction offers better heat and corrosion resistance than plastic housings.
- Kit includes oil filter, pressure and temperature sensors, O-rings, gaskets and mounting bolts for a mostly complete install.
- Machined exterior and vehicle-specific fit reduce the need for modification during installation.
- Many reviewers report no leaks after replacement, addressing a common failure point on 3.6L engines.
- Requires proper sealing and torque during installation to avoid leaks; not a plug-and-play fix if installation is rushed.
- Long-term durability vs higher-end branded replacements is not documented beyond user reports.
Verdict A practical aluminum replacement for the plastic oil cooler housing on 3.6L Jeep Grand Cherokee engines that lowers the risk of future leaks when installed correctly.
2. Somusen Aluminum Engine Oil Cooler and Filter Housing Kit
| Brand | Somusen |
|---|---|
| Material | Aluminum |
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
| Model | FF1029 |
This Somusen kit replaces the factory plastic oil filter housing with a cast aluminum housing, integrated oil cooler, oil filter and associated seals and sensors to restore oil cooling and filtration on compatible Chrysler 300 3.6L V6 engines. It is typically used when the original plastic housing cracks or the oil cooler begins leaking; installation requires draining coolant and oil, swapping sensors if needed, and careful gasket installation. The aluminum construction promises greater durability and improved heat dissipation compared with the original plastic part, and the kit includes the cooler, housing and basic seals to simplify a one-stop replacement. Buyers report the unit fits the Chrysler 300 valve cover area without modification, but several experienced installers recommend replacing the supplied O-rings/gaskets and using OEM-quality sensors to avoid leaks and diagnostic codes. Expect a moderately involved DIY job or a shop install; quality control on supplied sensors and gaskets can be inconsistent, so plan for a small parts substitution to ensure trouble-free operation.
Best for: Convenience-driven buyers who want a long-lasting replacement that consolidates the oil cooler and filter housing into a single part to minimize future trips to the shop and simplify maintenance.
Less Ideal for: Buyers seeking a guaranteed drop-in, zero-adjustment replacement without swapping gaskets or sensors should consider sourcing OEM parts or professional installation to avoid rework.
- All-aluminum housing improves durability over factory plastic and reduces risk of cracking.
- Integrated oil cooler and housing provide a consolidated replacement, reducing parts sourcing.
- Direct fit for 2017–2018 Chrysler 300 3.6L V6 applications according to fitment listing.
- Includes oil filter and basic seals so you receive a complete kit for installation.
- Positive user reports of long-term leak-free performance when paired with OEM gaskets and sensors.
- Supplied O-rings, gaskets and preinstalled sensors are reported inconsistent in quality and may need replacement.
- Some installers experienced diagnostic codes unless factory-quality sensors are fitted.
- Installation can be tedious and may require careful maneuvering of the cooler into the valley on some engines.
Verdict A durable aluminum upgrade that simplifies replacement for Chrysler 300 owners, but budget for OEM gaskets and sensors to avoid fitment headaches.
3. TEMSONE Full Aluminum Engine Oil Filter Housing and Oil Cooler Kit with Gaskets & Sensors
| Compatible with Vehicle Type | Car |
|---|---|
| Material Type | Aluminum |
| Product Grade | Replacement Part |
| Thread Size | M16 x 1.5, M18 x 1.5, or M20 x 1.5 |
This TEMSONE kit replaces the factory plastic oil filter housing with a full-aluminum housing and preinstalled oil cooler, sensors, gaskets, and hardware to provide a more durable, long-lasting assembly for 3.6L Chrysler-platform engines. It is intended for direct replacement during a service that requires removing the intake valley and can be used to stop leaks and failures common to brittle plastic housings. Notable features include a machined aluminum housing and cap, a preinstalled heat exchanger style oil cooler, two sensors (pressure and temperature), an extra oil filter, and a full set of gaskets and O-rings. In practice the aluminum construction reduces risk of cracking and warping and the included sensors and mounting bolts simplify installation, but care is required to torque the fasteners to factory values because aluminum threads behave differently than plastic. A few buyers noted the supplied oil temp sensor may be lower grade than factory and some gasket pieces feel thin, so swapping critical sensors or using heavier replacement gaskets is a sensible precaution for reliability-minded owners.
Best for: Reliability-focused buyers who want a durable, long-term replacement for the fragile plastic oil filter housing on Chrysler 3.6L vehicles and prioritize fixing chronic leaks or cooler failures the first time.
Less Ideal for: Buyers who prefer only OEM-sourced sensors or those who want a bare housing without extra components should consider alternatives or plan to swap parts before installation.
- All-aluminum housing reduces risk of cracking compared with factory plastic housings
- Includes oil cooler, two sensors, oil filter, gaskets and mounting hardware for a mostly complete swap
- Machined mating faces and preinstalled components simplify bench prep and shorten install time
- Fits 3.6L Chrysler-family vehicles listed and replaces multiple factory part numbers
- Some included sensors may be lower quality than factory units and could be advisable to replace with OEM sensors
- A few gasket pieces are reported as flimsy compared with aftermarket heavy-duty gaskets
Verdict A durable aluminum replacement that addresses common plastic-housing failures on Chrysler 3.6L engines, but consider fitting OEM sensors and sturdier gaskets for maximum reliability.
4. MILIPARTS Aluminum Oil Cooler and Filter Housing Kit
| Brand | MILIPARTS |
|---|---|
| Model | Oil Cooler |
| Exterior | Aluminum |
| Position | Inside |
This MILIPARTS kit replaces the plastic oil cooler/filter housing on Chrysler 300 3.6L models with an upgraded aluminum assembly and includes gaskets and sensors. It installs in the factory location and is used when the original housing cracks, leaks, or allows debris into the oil system. The aluminum body resists warping and adds extra cooling passages and fins compared with the plastic unit, which helps keep oil temperatures down and can extend engine and oil life. The kit ships with seals and an oil filter interface so you can swap the part in one job, though several user reports note the included O-rings are lower quality and some owners prefer to fit OEM seals for a reliable seal under pressure. Practical benefits are improved durability versus the factory plastic housings and potential savings compared with dealer replacements, but buyers should plan to inspect or replace the seal kit during installation to avoid leaks.
Best for: Budget-conscious owners prioritizing a cost-effective, longer-lasting replacement for the Chrysler 300 3.6L plastic oil cooler who prefer a straightforward upgrade over dealer parts.
Less Ideal for: Drivers seeking a guaranteed factory-sourced repair or those unwilling to replace minor seal components during installation should consider dealer parts or a professional-supplied seal kit instead.
- Aluminum housing reduces warping and is more durable than factory plastic parts.
- Additional cooling passages and fins improve oil cooling efficiency.
- Includes gaskets, sensors, and oil filter interface for a one-stop replacement.
- Direct-fit design intended for Chrysler 300 3.6L mounting location.
- Included O-rings and seals have reported quality issues and may need replacement for leak-free service.
- Some installers report difficulty seating seals, which can require extra time or OEM replacement seals.
Verdict A cost-effective aluminum upgrade for the Chrysler 300 3.6L that improves cooling and durability but inspect or replace seals during installation to avoid leaks.
5. GAOBEN 926-876/926-959 Aluminum Engine Oil Filter Housing with Cooler
| Brand | GAOBEN |
|---|---|
| Material | Aluminum |
| Thread Size | M16 x 1.5 |
| Product Grade | Replacement Part |
This GAOBEN oil filter housing replaces the original plastic assembly with a machined aluminum unit and an integrated oil cooler to address common leaking and cracking problems. It is installed in the engine bay in place of the factory housing and routes oil through the cooler while providing mounting for the filter and sensors. Buyers get a heavier duty housing that resists warping and leakage better than plastic, and many users report straightforward installation and included seals and sensors reduce parts hunting. Some customers needed to swap sensor plugs from their old unit because connector shapes can vary, so expect minor electrical fitment work in a few cases. The aluminum construction improves durability and should reduce the chance of repeat repairs, but installation is involved and requires careful sealing and correct sensor connections to avoid error codes or leaks. For technicians and DIYers replacing a failing plastic housing this is a practical, longer-lasting upgrade that focuses on reliability rather than luxury finishes.
Best for: Practical optimizers who prioritize a durable, cost-effective repair that reduces the odds of repeating a leak repair and who are comfortable with a hands-on installation.
Less Ideal for: Buyers looking for a drop-in plug-and-play swap with guaranteed sensor connector fit or those unwilling to tackle a multi-hour job should consider alternatives or professional installation.
- Aluminum body resists cracking and warping common to factory plastic housings
- Integrated oil cooler replaces the plastic assembly for a more durable solution
- Includes seals and sensors which simplifies installation and reduces additional purchases
- Machined exterior suggests better fit and finish than low-cost cast alternatives
- Sensor connector shapes may differ from the vehicle harness requiring reuse of original sensors or minor modifications
- Installation is labor intensive and requires careful sealing to prevent leaks
Verdict A durable aluminum replacement that fixes the known plastic-housing leak issue and delivers strong value for owners seeking a long-term repair.
6. B.ZSSY Aluminum Engine Oil Cooler and Filter Housing Assembly
| Material | Aluminum |
|---|---|
| Thread Size | M20 x 1.5 |
| Vehicle Service Type | Engine Oil Cooler and Oil Filter Housing Assembly Compatible with 2011-2023 Challenger Charger Journey Durango Grand Caravan Avenger 3.6L |
| Manufacturer Part Number | 68105583AF |
This aluminum oil cooler and filter housing replaces the common plastic housings on 3.6L Chrysler-family engines and combines the oil cooler and filter adapter into one assembly. It is typically used when the original housing cracks or leaks oil and coolant, or as an upgrade to reduce future failures. The unit is full-aluminum for improved stiffness and heat resistance and ships with multiple gaskets and sensors installed or provided, which simplifies installation for a competent DIYer or independent shop. Practical benefits include better resistance to cracking during oil changes and fewer coolant/oil leaks if gaskets are properly installed. Some installers report sensor differences and gasket quality issues, so expect to test connectors and consider using higher-quality intake/cover gaskets during installation. Fitment is focused on 3.6L Chrysler/Dodge/Jeep/Ram models; installation can be time consuming and may require transferring OEM sensors or swapping connectors to match factory wiring harnesses.
Best for: Practical optimizers looking for a cost-effective, longer-lasting replacement for the factory plastic housing who prefer doing repairs themselves or saving on shop labor.
Less Ideal for: Buyers who want guaranteed factory-original parts or who prefer a completely plug-and-play, zero-adjustment swap should consider OEM replacement parts instead.
- Full-aluminum construction reduces risk of cracking compared with plastic housings.
- Ships with multiple gaskets and includes installed sensors to simplify replacement.
- Direct-replace thread size and listed OEM part cross-references for straightforward fitment.
- Frequently reported to stop persistent oil or coolant leaks when installed correctly.
- Some customers received incorrect or lower-quality sensors and recommend verifying connectors before final installation.
- Included gaskets are reportedly inconsistent in quality, so replacements may be advisable for a long-term seal.
- Installation can be time consuming and may require sensor transfers or wiring adjustments.
Verdict A practical, budget-friendly aluminum upgrade that fixes common plastic housing leaks but expect to verify sensors and possibly replace gaskets during installation.
7. MNJWS Aluminum Oil Filter Housing and Oil Cooler Kit for 3.6L Pentastar
| Material | Aluminum |
|---|---|
| Vehicle Service Type | Chrysler 300 (3.6L) and other Chrysler 3.6L models |
| Thread Size | M16 x 1.5 |
| Manufacturer | MNJWS |
This MNJWS kit replaces the factory plastic oil filter housing on 3.6L Pentastar Chrysler engines with a reinforced aluminum assembly that integrates the oil cooler and includes seals and mounting hardware. It is typically used when owners see oil leaks around the filter housing or oil cooler or want a longer-lasting replacement after the factory housing warps. The aluminum construction resists heat and corrosion better than stock plastic parts, and the kit comes mostly assembled with new bolts and an oil filter to simplify installation. Buyers report the part fits Chrysler 300 applications and stops leaks when installed correctly. Expect practical benefits like reduced risk of repeat leaks and a more durable mounting for sensors. Important limitations: some supplied sensors or the included oil filter may not match every vehicle variant so you may need to reuse factory sensors or install a different quality oil filter, and shops may be hesitant to warranty work when the buyer supplies the part.
Best for: Balanced buyers who want a durable, longer-lasting replacement for the Chrysler 300 3.6L Pentastar housing and prefer a practical upgrade over the factory plastic part.
Less Ideal for: If you need guaranteed plug-and-play sensor compatibility for a shop-installed repair or prefer parts sold through the dealer for warranty reasons, consider dealer-sourced alternatives.
- Aluminum construction improves heat resistance and reduces likelihood of warping compared with plastic housings
- Includes seals, bolts and a preinstalled oil cooler to simplify a direct replacement
- Listed to fit Chrysler 300 3.6L Pentastar engines across multiple model years
- Arrives mostly assembled which can shorten installation time for DIY or shop
- Some supplied sensors may not match factory connectors and could require reusing original sensors
- Included oil filter quality varies and may need replacement with a known-brand filter
Verdict A durable aluminum replacement for the Chrysler 300 3.6L housing that stops leaks and outlasts the factory plastic unit, but check sensor and filter compatibility before installation.
Choosing the Right Chrysler 300 Oil Cooler: Key Factors to Consider
Cooling Capacity
Cooling capacity determines how much heat the oil cooler can remove during sustained operation. Higher capacity matters when you tow, drive in hot climates, or operate the engine at high load because oil temperature rises more quickly under these conditions.
Look for coolers rated for the thermal loads you expect rather than overrating by guesswork. A cooler with insufficient capacity may reduce oil temperatures only marginally, while a properly sized unit keeps oil viscosity and lubricating film thickness in an optimal range during prolonged heavy use.
Fitment and Mounting
Fitment and mounting affect installation complexity and long-term reliability. An oil cooler that matches existing mounting points or offers vehicle-specific brackets reduces the need for fabrication and minimizes stress on hoses and fittings.
Good mounting also ensures proper airflow across the core. Poor placement can lead to heat soak from nearby engine components or limit airflow at highway speeds, diminishing the cooler’s effectiveness. Confirm the cooler’s physical dimensions and bracket options before buying.
Materials and Construction
Materials and construction influence durability, corrosion resistance, and thermal transfer. Aluminum cores and fittings are common for their combination of light weight and good conductivity, while brass or stainless fittings may offer better longevity in certain environments.
Weld quality, brazing consistency, and fin density all affect performance and longevity. Inferior construction can lead to leaks, premature clogging, or reduced heat transfer over time, so prioritize units with robust build standards and corrosion-resistant finishes.
Connection Type and Compatibility
Connection type and compatibility determine how the cooler integrates with your Chrysler 300’s oil circuit. Some coolers use threaded fittings that require specific adapters, while others accept factory-style hose ends. Compatibility affects leak risk and ease of installation.
Consider whether you will need additional adapters, replacement lines, or changes to the oil filter housing. Choosing a cooler that matches common line sizes and fitting styles reduces the risk of incorrect connections and simplifies maintenance.
Maintenance and Serviceability
Maintenance and serviceability impact long-term ownership costs and downtime. Some designs allow the cooler core to be replaced or flushed easily, while others require full assembly replacement if clogged or damaged.
Units with accessible cores, standard hose fittings, and replaceable seals make routine service simpler. Also consider how easy it is to inspect for oil cooler leak symptoms and whether the design allows for straightforward troubleshooting without extensive disassembly.
Intended Use and Duty Cycle
The intended use—daily driving, occasional towing, or frequent heavy-duty operation—shapes which cooler is appropriate. A light-duty cooler may suffice for normal commuting, but repeated towing or track use demands higher thermal capacity and more robust construction.
Assess how often you will subject the vehicle to high loads and choose a cooler with a duty cycle that matches those conditions. Overbuilding adds weight and complexity, but underbuilding risks oil overheating and accelerated wear.
FAQ
How do I know if my Chrysler 300 needs an oil cooler?
You may need an oil cooler if you regularly see higher-than-normal oil temperatures during towing, high-speed driving, or extended idling. Other signs include reduced oil life, darkened oil during checks, or intermittent overheating under load. A temperature gauge or scan tool that reports oil temperature can help identify whether additional cooling is necessary.
Can an oil cooler cause oil leaks?
Yes, improper installation, damaged fittings, or deteriorated hoses can cause leaks. Leaks often stem from mismatched fittings, loose clamps, or degraded seals rather than the cooler core itself. Choosing the right connection type and following proper installation practices reduces leak risk.
Is it difficult to install an oil cooler on a Chrysler 300?
Installation complexity varies by design and your mechanical experience. Some kits use vehicle-specific brackets and factory-style connections, making installation straightforward, while others require adapter fittings or custom routing of lines. If you are uncomfortable with oil-line work or routing, professional installation is often recommended.
Will adding an oil cooler affect engine oil pressure?
Adding an oil cooler may slightly affect oil pressure due to additional line length and fittings, but most systems are designed to tolerate that change. Properly sized lines and quality fittings minimize pressure loss. If you have concerns about pressure changes, monitor oil pressure after installation and consult a qualified technician.
How do I identify oil cooler leak symptoms?
Common leak symptoms include oil spots under the vehicle, a drop in oil level without visible engine leaks, or a strong oil smell after driving. You may also see oil on cooler lines, fittings, or nearby components. Regular inspections and addressing any seepage early can prevent larger failures.
How We Chose the Best Chrysler 300 Oil Cooler
We focused on oil coolers that are sized and designed to work with the Chrysler 300 platform and engine layouts. Key evaluation criteria included cooling capacity under sustained load, physical fit and mounting options specific to the vehicle, material and build quality for corrosion resistance, and compatibility with existing oil lines and adapters. We also considered ease of installation, including whether the unit requires custom hoses or fittings, and the availability of replacement cores or service parts. Durability under repeated thermal cycling and the quality of connectors and seals were weighted heavily because leaks and failures often stem from poor sealing or thin materials. Units that required extensive vehicle modification or lacked clear fitment guidance were excluded. We did not include options intended solely for racing use or those that do not provide documented fitment for the Chrysler 300. The final list prioritizes a balance of cooling performance, long-term reliability, and practical installation for typical owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing an oil cooler for a Chrysler 300, prioritize cooling capacity that matches your driving demands, proper fitment to minimize installation modifications, and durable materials that resist corrosion and thermal fatigue. Balance the tradeoff between cooling performance and installation complexity based on how often you tow or operate the vehicle under heavy load. Pay attention to connection compatibility and serviceability so future maintenance is straightforward. A well-chosen cooler reduces oil temperatures, helps maintain oil integrity, and supports long-term engine reliability.
