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If you drive a Chrysler 300 and want to keep the steering system running smoothly, selecting the right power steering cooler matters. Overheated steering fluid can cause reduced steering responsiveness, faster component wear, and increased risk of leaks. This guide shortlists the top options for the Chrysler 300, focusing on units that address cooling performance and installation practicality.The list covers carefully chosen coolers and kits evaluated for cooling capacity and vehicle-specific fitment, plus durability and ease of installation. Read on to find the solutions that match your usage and maintenance goals.
Looking for other parts? See all Chrysler 300 parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | A-Premium Power Steering Oil Cooler for Chrysler 300 / Dodge Charger / Challenger / Magnum |  |
| Best Quality Built to a higher standard if you want something more solid | Mopar Power Steering Cooler (Part 68359766AB) |  |
| Best Value The sweet spot between price and what you get | Dorman Power Steering Cooler 918-305 (Compatible with Select Chrysler/Dodge) |  |
| Best Budget The cheapest option that still gets the job done reliably | Hayden Automotive 1011 Power Steering Oil Cooler |  |
| Highest Rated A top-rated pick with lots of positive feedback | Mopar Power Steering Cooler 4743237AC |  |
| Most popular A crowd favorite that many people choose with confidence | TRQ A/C Condenser and Receiver Drier Assembly with Power Steering and Transmission Oil Coolers |  |
| Best Seller A high-volume bestseller chosen again and again | Derale 13200 Power Steering Cooler Kit |  |
1. A-Premium Power Steering Oil Cooler for Chrysler 300 / Dodge Charger / Challenger / Magnum
| Material | Aluminum |
|---|---|
| Manufacturer Part Number | APOC321 |
| OEM Part Number | 918-305, 918305, 5137721AA, CH4060100 |
This A-Premium power steering oil cooler is a direct replacement designed for Chrysler 300 (2005-2009) and matched Dodge models, built from aluminum to shed heat from the power steering circuit and preserve pump and rack life. It installs in-line with existing hoses as a factory-style cooler and is intended for standard driving rather than severe-duty cooling setups. The long, slim core gives good cooling surface area while keeping installation space-friendly, and the unit lists multiple OEM reference numbers for straightforward parts matching. In real use it reduces fluid temperature under normal and moderately heavy driving, which helps reduce steering noise and premature component wear. The cooler comes with a one-year unlimited-mileage guarantee from the brand. Buyers should note this is not advertised as an upgraded heavy-duty cooler for extreme towing or track use and fitment must be verified against the listed reference numbers before ordering.
Best for: Balanced owners who want a reliable, factory-style replacement to lower power steering fluid temperatures and extend component life without upgrading to a heavy-duty aftermarket cooler.
Less Ideal for: Drivers who routinely tow heavy loads, run track sessions, or need an upgraded severe-duty cooling solution should consider a higher-capacity cooler designed for extreme use.
- Aluminum construction for efficient heat dissipation and corrosion resistance
- Direct-fit replacement referencing common OEM part numbers for easier compatibility checks
- Slim, elongated core profile fits tight engine bays without major modification
- One-year unlimited-mileage guarantee from the manufacturer
- Not specified or rated for severe-duty cooling or heavy towing applications
Verdict: A practical, factory-style aluminum power steering oil cooler that restores cooling performance and fitment for Chrysler 300 and related Dodge models.
2. Mopar Power Steering Cooler (Part 68359766AB)
| Manufacturer | Mopar |
|---|---|
| Model | COOLER |
| Manufacturer Part Number | 68359766AB |
| Exterior | Machined |
This Mopar power steering cooler is a factory replacement part intended to cool steering fluid and preserve system performance under load. It installs in the factory routing and is used to reduce fluid temperatures during spirited driving, towing, or sustained high-speed use where steering systems can overheat. The listing notes machined exterior construction and Mopar manufacture to match fit and function, which suggests reliable fitment and straightforward installation on compatible Chrysler 300 models. As a genuine manufacturer part, it provides confidence in compatibility and durability compared with generic aftermarket options. Limitations are minimal for buyers who need only the cooler itself since the listing does not include hoses, clamps, or installation hardware and provides no detailed thermal capacity data, so buyers seeking measured cooling performance or a performance-upgraded unit may prefer a purpose-built aftermarket option.
Best for: Performance-oriented owners who prioritize factory-quality replacement parts and want reliable cooling for spirited driving or towing while keeping the factory steering system intact.
Less Ideal for: Drivers seeking a high-capacity aftermarket performance cooler with documented thermal ratings or a complete install kit should consider dedicated performance units instead.
- Factory-quality Mopar part engineered to match original fit and function
- Machined exterior suggests solid construction and corrosion resistance
- Direct replacement design simplifies installation into factory locations
- Designed to lower power steering fluid temperatures during heavy use
- No performance specs or measured cooling capacity provided
- Does not include hoses or clamps, which may require additional parts for installation
Verdict: A factory Mopar power steering cooler that provides a reliable, direct-fit upgrade to help keep steering fluid temperatures under control during demanding driving.
3. Dorman Power Steering Cooler 918-305 (Compatible with Select Chrysler/Dodge)
| Material | Aluminum |
|---|---|
| Upper Temperature Rating | 248 Degrees Fahrenheit |
| Liquid Volume | 0.12 Liters |
| Part Number | 918-305 |
This Dorman power steering cooler is a straightforward direct-replacement designed for specified Chrysler 300 and select Dodge models. It installs in place of a failed factory cooler to help keep steering fluid temperatures under control during normal driving and towing, and its aluminum construction resists corrosion for long service life. The part is intended to match original fit and mounting so it is typically used when the factory cooler leaks or is damaged; owners report straightforward fitment on the listed model years when vehicle trim is confirmed. Notable features include corrosion-resistant aluminum construction and a factory-style design that simplifies installation and reduces modification. Because it is a single-piece cooler, confirm routing and clearances before purchase as one reviewer noted dimensional differences on some builds. The product is backed by Dorman engineering support and fits a narrow set of model years, making it a practical, lower-cost option for owners who want a reliable, serviceable replacement without upgrading to a heavy-duty aftermarket cooler.
Best for: Practical optimizers who want a cost-effective, factory-style replacement for a failed steering cooler on supported Chrysler 300 or select Dodge models and prefer a simple install over heavy-duty upgrades.
Less Ideal for: Drivers who need increased cooling capacity for heavy towing or track use should choose a purpose-built heavy-duty aftermarket cooler instead.
- Direct-replacement design aims to match factory fit and mounting for easier installation
- Aluminum construction offers corrosion resistance for longer service life
- Engineered by a major aftermarket supplier with vehicle-specific fitment listings
- Backed by Dorman engineering support and a limited lifetime warranty
- Fit and dimensions may differ from the original on some vehicles so verification is required
- Designed for specific model years only, limiting applicability
Verdict: A budget-friendly, factory-style aluminum replacement cooler that simplifies repair for supported Chrysler and Dodge models.
4. Hayden Automotive 1011 Power Steering Oil Cooler
| Model | Power Steering Oil Cooler 1011 |
|---|---|
| Recommended hose I.D. | 3/8 inch |
| Exterior | Machined |
| Unit count | 1.0 Count |
| Manufacturer | Hayden Automotive |
The Hayden 1011 power steering oil cooler is an inline cooler intended to reduce operating temperature in power steering systems where heat is a concern, like vehicles with larger tires or frequent low-speed work. It installs in the return hose and comes with mounting hardware for a straightforward bolt-up. By shedding heat it helps protect the pump, hoses, seals and fluid, which can reduce premature failures and maintenance on older or heavily used systems. The unit is machined for durability and sized for systems using 3/8 inch I.D. return hose; Hayden offers similar coolers for different duty levels. Limitations are that fitment depends on hose inner diameter and available mounting space, and it does not include hose or fittings beyond the supplied bracket hardware, so installers should verify hose size and routing before purchase.
Best for: A risk-averse mainstream buyer looking to protect factory steering components on a Scion tC by reducing heat-related wear and extending service intervals.
Less Ideal for: Drivers who need a universal, tool-free retrofit or who cannot accommodate a small inline cooler in their engine bay should consider integrated radiator-mount options or professional installation.
- Reduces power steering fluid temperature to help prolong pump and hose life
- Machined exterior for a durable, serviceable finish
- Includes mounting hardware for simpler installation
- Sized for common 3/8 inch I.D. return hoses used in many aftermarket setups
- Requires matching hose inner diameter and enough underhood space for installation
Verdict: A compact, machined inline cooler that lowers steering fluid temperatures to help extend the life of Scion tC power steering components.
5. Mopar Power Steering Cooler 4743237AC
| Manufacturer | Mopar |
|---|---|
| Model | Power Steering Cooler |
| Exterior | Painted |
| Item model number | 4743237AC |
This Mopar power steering cooler is a direct-fit replacement intended to restore cooling capacity and protect the power steering pump on Chrysler-platform vehicles. It installs in place of the original cooler and is typically used when the factory unit is bent, leaking, or damaged by road debris. The painted finish and factory part number indicate a factory-quality replacement that matches factory mounting points and hose connections, which simplifies installation and reduces the need for modifications. Practical benefits include improved reliability and compatibility with the original steering system, and several buyer reports note straightforward bolt-on installation. Limitations are that this is a single-purpose replacement cooler with no additional shielding beyond the stock design, so it remains vulnerable to the same underbody impacts that can damage the original unit. Expect the same basic performance as the original part rather than upgraded cooling capacity.
Best for: A reliability-focused buyer who prioritizes restoring factory performance with a direct-fit, factory-quality replacement to avoid installation headaches and potential compatibility issues.
Less Ideal for: Drivers seeking an upgraded cooler with extra protection or higher heat capacity for heavy towing or performance applications should consider aftermarket performance coolers instead.
- Factory-designed fit for easy bolt-on replacement and correct hose alignment
- Painted exterior helps resist surface corrosion compared with bare metal
- Matches factory mounting points and connections to minimize installation time
- From the Mopar brand, indicating factory-quality manufacturing and specifications
- No added protective guard, so it remains susceptible to road debris damage
- Does not advertise increased cooling capacity over the original cooler
Verdict: A factory-quality, direct-fit replacement cooler that restores original steering-system cooling and simplifies installation.
6. TRQ A/C Condenser and Receiver Drier Assembly with Power Steering and Transmission Oil Coolers
| Core Material | Aluminum |
|---|---|
| Core Thickness | 0.75 in |
| Core Width | 18.62 in |
| Core Length | 23.5 in |
| Mounting Hardware Included | Yes |
This TRQ assembly replaces the factory condenser and receiver-drier while adding integrated power steering and transmission oil coolers to match Chrysler 300 heavy-duty cooling configurations. It is supplied pre-assembled for a straightforward swap into compatible Chrysler 300 model years listed for heavy duty cooling, so installation typically involves unbolting the old unit, transferring mounting hardware if needed, and connecting the factory hoses and fittings. Notable features include an aluminum core, included mounting hardware, and a built-in receiver drier which simplifies charging the A/C system after install. In practice the unit provides a near-direct replacement fit and has been reported to hold charge and cool effectively. Limitations are that fitment is specific to Chrysler 300 applications with heavy duty cooling and versions without an internal power steering cooler may differ, so careful comparison to the vehicles existing condenser and hose orientations is important before ordering. Some buyers note quality close to factory but not identical, so professional installation or a pressure check is advisable for long-term reliability.
Best for: A convenience-driven buyer who wants a ready-to-install replacement that combines A/C, power steering, and transmission cooling in one assembly for a Chrysler 300 with heavy duty cooling.
Less Ideal for: Drivers who need an exact factory-match part or who have non-heavy-duty cooling Chrysler 300 variants should consider vehicle-specific alternatives or OEM replacements.
- Pre-assembled direct-fit design reduces installation time for compatible Chrysler 300s
- Includes power steering and transmission oil coolers, consolidating cooling components into one unit
- Aluminum core offers effective heat transfer for A/C and fluid cooling
- Mounting hardware is included to simplify replacement and alignment
- Compatibility is limited to Chrysler 300 heavy-duty cooling configurations and requires verifying hose and connection orientations
- Not strictly factory-quality in every detail according to some users, so may feel slightly different from an OEM part
Verdict: A convenient, pre-assembled condenser and drier that also carries integrated power steering and transmission coolers for Chrysler 300 heavy-duty cooling setups, but confirm fitment and hose orientation before buying.
7. Derale 13200 Power Steering Cooler Kit
| Special Feature | Expanded Copper Tubing and Aluminum Cooling Fins |
|---|---|
| Inlet Size | 11/32 inch hose barb inlets |
| Model Name | 13200 |
| Installation Type | Self-Adhesive |
The Derale 13200 is a compact power steering cooler kit intended to reduce fluid temperature and help prevent heat-related pump failure. It mounts in front of the radiator or condenser and routes steering fluid through 1/2 inch copper tubing expanded into aluminum cooling fins to shed heat during normal driving and towing. The kit includes hose barb inlets and basic hardware for bolt-on installation, making it a straightforward add-on for routine maintenance or cooling upgrades. In practice it lowers operating temperature during prolonged low-speed or high-load use and can extend pump and seal life when heat is a factor. Because it is a simple inline cooler with a medium core area, cooling is effective for daily driving and light-duty towing but may be modest compared with larger or multi-pass coolers. Installation is practical for a home mechanic but may require careful routing to avoid chafing or kinking of the lines.
Best for: Convenience-driven buyers who want a simple, low-effort upgrade to reduce steering fluid heat and prolong pump life without major modification.
Less Ideal for: Drivers who frequently do heavy towing, competitive driving, or need maximum multi-pass cooling should consider larger or purpose-built heavy-duty coolers instead.
- Compact core with expanded copper tubing and aluminum fins for efficient heat transfer
- Includes hose barb inlets and hardware for a straightforward installation
- Small footprint fits in tight spaces ahead of the radiator or condenser
- Helps lower steering fluid temperature to reduce pump and seal stress
- Cooling capacity is moderate and may be insufficient for heavy towing or extreme-duty use
- Does not include detailed vehicle-specific fitment instructions
Verdict: A compact, easy-to-install power steering cooler that reduces fluid temperature and helps extend pump life for everyday and light-duty use.
Choosing the Right Chrysler 300 Power Steering Cooler: Key Factors to Consider
Cooling Capacity
Cooling capacity determines how effectively the unit lowers steering fluid temperature under load. Higher capacity coolers use increased surface area, denser fin packs, or larger flow passages to dissipate heat more quickly.
Insufficient cooling capacity can leave fluid at damaging temperatures during long highway pulls or heavy steering loads. When choosing, consider your typical driving conditions and whether the cooler's rated thermal dissipation matches heavier use such as towing or spirited driving.
Fitment And Compatibility
Fitment matters because the cooler must connect to the Chrysler 300's steering lines without forcing adapters that can leak or restrict flow. Look for options designed for or commonly adapted to the model's hose sizes and mounting points.
Compatibility also affects installation time and sealing reliability. A cooler with matching fittings and thoughtful mounting brackets reduces the chance of costly rework or fluid leaks down the road.
Material And Build Quality
Materials affect durability, corrosion resistance, and heat transfer efficiency. Aluminum cores and brass or stainless fittings offer good thermal performance and resist rust, while low-quality metals can corrode and lose effectiveness over time.
Also consider hose and clamp quality if included. Long-term exposure to heat and hydraulic fluid stresses components, so robust construction helps maintain cooling performance and prevents premature failures.
Pressure Drop And Flow Restriction
A cooler must reduce temperature without creating excessive pressure drop that could hinder steering performance. Designs with restrictive passages or undersized fittings can reduce pump efficiency and produce harsher steering feel.
Choose models engineered for balanced flow, where internal passages and hose sizes maintain adequate fluid delivery while still providing effective heat exchange.
Mounting And Installation Complexity
Installation difficulty influences whether you can fit the cooler yourself or need professional help. Some kits come with vehicle-specific brackets and hoses that simplify mounting, while others require custom routing or drilling.
Consider the tools and time required, whether the kit includes clear instructions, and how accessible the chosen mounting location is on the Chrysler 300. Easier installs reduce labor cost and the chance of installation errors.
Maintenance And Serviceability
Think about long-term upkeep such as how easy it is to access the cooler for inspection, cleaning, or replacement of hoses. Units placed in exposed positions can collect debris or damage, while those tucked behind protective panels may be harder to service.
Also evaluate whether replacement parts like hoses and fittings use standard sizes for easier sourcing. A design that supports straightforward maintenance helps ensure sustained cooling performance and system reliability.
How We Chose the Best Chrysler 300 Power Steering Cooler
We focused on products that provide measurable cooling improvement for the Chrysler 300 and that are practical to install on this specific model. Our selection criteria emphasized cooling capacity under load, compatibility with Chrysler 300 steering lines and fittings, and durable construction materials that resist corrosion and abrasion. Ease of installation was another key factor, including whether the cooler can be mounted without extensive modifications and whether common tools suffice.We also considered fluid routing quality, hose and fitting standards, and whether the design minimizes pressure drop through the steering system. Units that required extensive plumbing changes, vehicle-specific chassis modifications, or nonstandard fittings were excluded. The final list prioritizes reliable thermal performance, sound fitment for the Chrysler 300, and components built to withstand frequent driving conditions.
Our full evaluation process is outlined in our review methodology.
FAQ
Do I need a power steering cooler for my Chrysler 300?
You may need a cooler if you regularly drive under heavy loads, tow, or experience high steering fluid temperatures. A cooler helps manage fluid heat and can reduce wear, but many drivers with light-duty use do not require one.
Where is the best place to mount a power steering cooler on a Chrysler 300?
The best position is where it gets steady airflow and is protected from road debris, such as ahead of the radiator or behind a lower grille opening. Placement should allow secure mounting and straightforward hose routing to avoid tight bends.
Will adding a cooler affect steering feel or performance?
A properly sized cooler designed for automotive hydraulic systems should not noticeably degrade steering feel. However, very restrictive units or improper hose connections can create pressure drop and alter pump response, so fitment and flow characteristics matter.
How do I know if a cooler is compatible with my Chrysler 300's lines?
Check the cooler's hose and fitting specifications against your model's hose diameters and thread types. Vehicle-specific kits or products that document compatibility with the Chrysler 300 reduce the chance of needing adapters.
Can I install a power steering cooler myself?
Many owners can install a cooler with basic tools if the kit includes vehicle-appropriate brackets and hoses. Installation involves draining some fluid, routing hoses, and securely mounting the cooler. If you are unsure about fluid handling or fittings, a professional can ensure a leak-free job.
Conclusion
When choosing a power steering cooler for a Chrysler 300, prioritize proven cooling capacity and secure, model-appropriate fitment. Balance cooling performance against potential flow restriction and aim for durable materials and standard fittings to simplify future service.Consider installation practicality and how the cooler will be mounted and maintained. Picking a solution that fits the Chrysler 300 without major modifications will deliver the most reliable long-term results while reducing the risk of steering fluid overheating.
Explore More:
- Check out all Chrysler 300 parts & accessories
- Explore Power Steering Coolers Maintenance & Repair Guides
- Explore Cooling System
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