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If your Lincoln Navigator spends time towing, hauling, or stuck in slow traffic, steering-system heat can shorten component life and cause sluggish steering feel. Choosing the right Lincoln Navigator power steering cooler helps keep fluid temperatures down, reduces wear on the pump and hoses, and lowers the risk of pressure-related failures. This guide covers seven shortlisted coolers selected for this vehicle type. We evaluated cooling performance and ease of installation along with build quality and mounting options to help you pick the right solution. Read on to see which features matter most before you shop.
Looking for other parts? See all Lincoln Navigator parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Dorman 918-350 Power Steering Cooler |  |
| Most Popular A crowd favorite that many people choose with confidence | Aumzong Power Steering Cooler (15009093) |  |
| Best Quality Built to a higher standard if you want something more solid | Dorman 918-591 Power Steering Cooler |  |
| Best Budget The cheapest option that still gets the job done reliably | TOM Power Steering Cooler for 1997–2004 Ford F-150/F-250/Lincoln Navigator |  |
| Most Sold A high-volume bestseller chosen again and again | Edelmann Elite 58040 Power Steering Cooler |  |
| Best Value for Money The sweet spot between price and what you get | A-Premium Power Steering Cooler (replacement fit) |  |
| Best Overall The best all-around choice for most situations | Derale 13200 Power Steering Cooler Kit |  |
1. Dorman 918-350 Power Steering Cooler
| Model | Dorman 918-350 |
|---|---|
| Manufacturer | Dorman Products |
| OEM Part Number | EC3Z3D746A |
| Compatible Vehicles | Ford F-250/350/450/550 Super Duty 2011–2016 |
This Dorman power steering cooler is a direct-replacement unit built to match the fit and function of the factory cooler on specified vehicles. It is intended for use where the original cooler has failed or is leaking and installs in the same location using existing mounting points and hose connections. The cooler is made from corrosion-resistant components to resist fluid leaks and provide long service life under heavy-duty driving conditions. Practical benefits include a factory-style fit that simplifies installation and reduces the need for modifications, plus construction meant to withstand the higher thermal loads seen in towing and heavy use. Limitations are that fitment is specific to certain model years and trims so you must confirm compatibility before buying, and the part description does not list coating or core thickness details that some shop technicians consult when comparing aftermarket coolers. For a reliability-focused replacement, this cooler delivers a straightforward, durable solution that mirrors the original design.
Best for: Reliability-focused buyers who prioritize a factory-style replacement that restores original performance and reduces the chance of repeat repairs; ideal for owners who keep vehicles for the long term and prefer dependable, like-for-like parts.
Less Ideal for: Shoppers looking for universal or multi-vehicle coolers or those who want detailed performance specs for custom cooling upgrades should consider other options.
- Direct-replacement design intended to match factory fit and mounting points
- Constructed from corrosion-resistant components for longer service life
- Designed to handle higher thermal loads common in heavy-duty use
- Backed by product engineering and documentation from an established parts supplier
- Compatibility limited to specific Ford Super Duty model years and trims, requiring fitment confirmation
- Technical details like core thickness and finish are not specified in the listing
Verdict A straightforward, factory-style replacement cooler aimed at restoring reliable steering system performance on specified Super Duty trucks.
2. Aumzong Power Steering Cooler (15009093)
| Replacement part numbers | 15009093, 918-300, SKTOC049 |
|---|---|
| Compatibility summary | 2002-2009 Trailblazer family and select GM SUVs |
| Manufacturer | Aumzong |
| Item weight | 3.19 pounds |
This Aumzong power steering cooler replaces factory-style coolers and is designed to keep power steering fluid cooler under load to reduce seal wear and leakage. It installs in-line with the steering fluid hoses and is typically used when an old cooler has corroded or when owners want extra protection for towing or hot-weather driving. Notable features include a direct-fit replacement part number mapping and a claimed 100 percent inspection before shipping. In practice the unit offers an affordable way to restore routing and cooling; reviewers report straightforward installs and correct fit on supported vehicles. Limitations are that the male hose ends may be slightly different from factory fittings so new clamps or slight hose trimming might be required, and some buyers felt the assembly quality is more utilitarian than factory-quality. If you want a budget-friendly replacement that restores cooling function quickly, this cooler does the job, but buyers seeking an exact factory-feel finish may prefer a dealer part.
Best for: Convenience-driven buyers who want a quick, wallet-friendly replacement that lets them get back on the road without sourcing dealer parts or long wait times.
Less Ideal for: Drivers who prioritize factory-level finish, longest-term durability, or who prefer to source parts directly from the dealer should consider alternatives.
- Direct-replacement design that maps to common OEM part numbers for straightforward swap-in
- Affordable alternative to dealer parts while restoring cooling function
- Multiple customer reports of correct fit and simple installation
- Manufacturer states each unit is inspected before leaving the factory
- Fit may require new hose clamps or minor hose adjustment because male ends can differ slightly from factory fittings
- Build quality is functional rather than premium, which may show in fittings or finish
Verdict A budget-friendly, direct-replacement power steering cooler that restores cooling performance quickly but may need minor hose or clamp adjustments for a perfect factory fit.
3. Dorman 918-591 Power Steering Cooler
| Manufacturer Part Number | 918-591 |
|---|---|
| Compatible Vehicles (years) | Ford Edge 2007-2010; Lincoln MKX 2007-2010 |
| Exterior | Ready To Paint If Needed |
| OEM Part Number | 3404880; 367084; 93556; 7T4Z3D746A; 7T4Z3D746B |
This Dorman power steering cooler is a direct-replacement cooler built to replicate factory fit and function for compatible vehicles. It installs in place of a failed cooler to restore power steering fluid cooling and reduce overheating during heavy use. The unit is described as corrosion-resistant and made from quality materials, which helps it withstand road exposure and extend service life compared with a corroded original. Its ready-to-paint exterior lets you blend it with other underhood components if appearance matters. Installation is typical of cooling-line replacements and should be straightforward for a competent DIYer or a shop, but confirming trim-level fitment before buying is important. The cooler is focused on reliable performance rather than added features, so expect a like-for-like replacement that keeps steering temperatures down under towing or spirited driving while avoiding more complex upgrades. If you need a different capacity or a redesigned cooler for extreme motorsport use, this unit is not intended for that purpose.
Best for: Performance-oriented buyers who prioritize maintaining factory-level steering performance under load and want a high-quality replacement that restores original cooling reliability.
Less Ideal for: Drivers seeking an upgraded high-capacity cooler for racing, heavy towing beyond factory limits, or custom cooling solutions should look at performance-specific aftermarket options.
- Factory-style direct replacement for specified Ford and Lincoln models
- Corrosion-resistant construction for longer service life in road conditions
- Matches original fit and function to simplify installation and avoid modifications
- Designed as a like-for-like replacement so it does not increase cooling capacity for heavy-duty or racing applications
- Fitment requires verifying vehicle trim which can add a step before purchase
Verdict A dependable, factory-style replacement cooler that restores steering fluid cooling for users who want reliable, performance-minded stock-level operation.
4. TOM Power Steering Cooler for 1997–2004 Ford F-150/F-250/Lincoln Navigator
| Fits models | 1997–2004 Ford F-150/F-250 and Lincoln Navigator |
|---|---|
| Manufacturer | TOM |
| Manufacturer Part Number | 912-224 |
This TOM power steering cooler is a direct-fit aftermarket replacement intended for 1997–2004 Ford F-150, F-250, Lincoln Navigator and related models. It replaces the factory cooler to help dissipate heat from power steering fluid during towing, off-road driving, or heavy city use, which can reduce fluid breakdown and steering fade. The unit is supplied as a full cooler assembly that mirrors factory mounting points for straightforward installation by a DIYer or shop. Its main practical benefit is lowering fluid temperatures to extend component life and maintain steering feel when the system is stressed. Limitations are typical for budget aftermarket parts: long-term durability and corrosion resistance may not match higher-end branded coolers, and there is limited published data on flow rate or material treatments. The product ships with manufacturer part number cross-reference for fitment and a one-year support statement, making it a sensible low-cost option if you need a quick replacement rather than an upgraded heavy-duty cooler.
Best for: Budget-conscious owners seeking an affordable, ready-to-install replacement cooler to restore steering system temperature control without upgrading other components.
Less Ideal for: Drivers who tow frequently at maximum capacity or need a heavy-duty aftermarket cooler for sustained extreme use should consider a purpose-built premium cooler instead.
- Direct-fit design for 1997–2004 Ford/Lincoln models eases installation
- Provides heat dissipation to help prevent steering fluid overheating under load
- Affordable replacement option for budget-focused repairs
- Backed by a manufacturer-specified part number and one-year support statement
- Build and corrosion protection may be inferior to premium coolers
- Manufacturer does not publish flow-rate or thermal performance specifications
Verdict A low-cost, direct-fit replacement that restores power steering cooling for older Lincoln Navigator models but lacks the documented performance and corrosion resistance of premium units.
5. Edelmann Elite 58040 Power Steering Cooler
| Brand | Edelmann |
|---|---|
| Model | 58040 |
| Manufacturer | Plews & Edelmann |
| Exterior | Painted |
The Edelmann Elite 58040 is a replacement power steering cooler engineered to dissipate excess heat from hydraulic steering systems. It is typically installed inline with the steering fluid lines to lower operating temperatures that can shorten pump, hose, and seal life, especially under heavy loads or towing. Notable features include construction to original manufacturer specifications and high-temperature furnace brazing for stronger joints and improved durability compared with many aftermarket cores. In practice this cooler helps maintain more consistent steering performance during prolonged use and can reduce the risk of premature component failure caused by overheating. Installation is straightforward for a technician familiar with steering systems, though routing and mounting depend on available space. The main limitations are that it is a single-purpose cooler with no integrated fittings or hoses included and fitment must be confirmed for the vehicle-specific mounting points and line connections. For a cautious buyer seeking a factory-style replacement to protect the steering system, this cooler offers a durable, conservative option.
Best for: A risk-averse mainstream buyer who prioritizes preserving factory steering components and prefers a conservative, OEM-style replacement to reduce the chance of overheating-related failures.
Less Ideal for: Drivers seeking a universal kit with included hoses and fittings or a plug-and-play performance upgrade that requires no fitment checks should consider alternatives.
- Built to match vehicle manufacturer specifications for a close factory-quality fit and performance
- High-temperature furnace brazing improves joint strength and long-term durability
- Designed to reduce steering system temperatures, extending pump, hose, and seal life
- Painted exterior resists corrosion and improves longevity in under-hood conditions
- Does not include installation hoses or fittings, so additional parts may be required
- Mounting and line routing are vehicle-specific and may need professional installation
Verdict A durable, factory-spec power steering cooler aimed at buyers who want a conservative, long-lasting way to lower system temperatures and protect steering components.
6. A-Premium Power Steering Cooler (replacement fit)
| Material | Aluminum |
|---|---|
| Inlet fitting diameter | 0.315 inch |
| Outlet fitting diameter | 0.394 inch |
| Manufacturer part number | APPSC002 |
| OEM part number | 918-308 / 52029306AG / 68069566AA |
This aluminum power steering cooler replaces a worn or failing cooler to help keep power steering fluid temperature down and reduce steering issues like chatter or stiffness. It is built as a direct-fit replacement and installs where the factory cooler mounts, using the same inlet and outlet locations so it integrates with the existing steering lines. The high-efficiency aluminum fins and core speed heat dissipation, which helps maintain fluid viscosity and reduce stress on the pump and rack during towing or extended driving. Buyers can expect a straightforward swap for a cooler that mirrors factory form and function and performs well under heavy use. Potential limitations are the mounting attachment design and rivet-style fasteners noted by some installers, which may be less robust than original brackets, and the product is a single-purpose component so installation requires basic mechanical skill and the correct fittings. The manufacturer offers a one-year unlimited-mileage guarantee for reassurance.
Best for: Practical optimizers who prioritize getting reliable, factory-style replacement parts at a sensible cost and want to prolong steering component life without upgrading to an expensive performance cooler.
Less Ideal for: Drivers seeking a heavy-duty or aftermarket performance cooler for extreme towing or motorsport use should consider purpose-built high-capacity units instead.
- Aluminum heat-sink design that improves cooling efficiency under load
- Direct-replacement form intended to match factory connections for easier installation
- Helps preserve fluid viscosity to reduce steering noise and pump strain during towing
- Positive user reports of fit and durability on comparable trucks
- Mounting uses rivet-style attachments that may be less sturdy than some factory brackets
- Limited to cooling function and requires line fittings and installation effort to swap in
Verdict A cost-effective aluminum direct-replacement cooler that restores factory cooling performance for practical owners, but check mounting hardware if you need heavy-duty bracketry.
7. Derale 13200 Power Steering Cooler Kit
| Special Feature | Expanded Copper Tubing and Aluminum Cooling Fins, Hardware Kit Included |
|---|---|
| Inlet barb size | 11/32 inch hose barb inlets |
| Model | 13200 |
The Derale 13200 is a compact power steering cooler kit designed to reduce fluid temperature and protect the steering pump and seals. The cooler mounts in front of the vehicle and uses 1/2 inch copper tubing expanded into aluminum cooling fins for efficient heat transfer, and the kit includes basic mounting hardware and hose fittings. Typical use is as an add-on when the factory cooling is marginal or when towing and heavy steering loads raise fluid temperature; installation routes the included hose between the pump and steering box or rack and fastens the cooler behind the grille or to the radiator support. Practical benefits are straightforward: it lowers heat-related wear on the pump, is small enough to fit discreetly on the Lincoln Navigator, and comes with most hardware needed for a simple DIY install. Limitations are the short stock hose length and basic clamps included, which several installers replace with higher-quality hose and clamps for easier fitting and longer-term durability. Some users also note the included mounting straps are minimal for heavy off-road use.
Best for: A balanced all-round buyer who wants a proven, compact cooler to lower steering fluid temperatures on a Lincoln Navigator and extend pump life without complicated upgrades.
Less Ideal for: Drivers planning sustained high-demand towing or extreme off-road use who need a heavy-duty, purpose-built cooling system should consider higher-capacity alternatives.
- Compact footprint fits easily behind the grille or on the radiator support of a Lincoln Navigator
- Expanded copper tubing with aluminum fins improves cooling efficiency compared with bare hose routing
- Includes basic hardware and hose fittings for most standard installs
- Lightweight design minimizes stress on mounting points
- Included hose length and clamps are minimal so additional hose or higher-quality clamps are often needed
- Mounting straps provided are basic and may require fabrication or stronger brackets for heavy-duty or off-road use
Verdict A small, effective add-on cooler for the Lincoln Navigator that reduces steering fluid heat and pump wear, but budget-minded installers should plan to upgrade the hose and clamps.
Choosing the Right Lincoln Navigator Power Steering Cooler: Key Factors to Consider
Cooling Capacity and Heat Rejection
How much heat a cooler can remove directly affects steering fluid temperature during heavy use. Higher thermal capacity helps keep fluid viscosity stable and prevents gas-out or foaming under repeated high-load cycles.
Look for construction and fin area that maximize surface contact with airflow. Consider how much towing or low-speed work you do, since more demanding use requires greater cooling headroom to maintain consistent performance.
Fitment and Mounting Options
A cooler that fits the available mounting points and space in the Navigator reduces installation time and the need for custom brackets. Proper fitment also minimizes stress on hoses and fittings, reducing leak risk.
Assess plate or bracket designs, clearance to other engine components, and whether the unit mounts to the core support, frame, or other factory points. Units with multiple mounting options offer greater flexibility for tight engine bays.
Hose and Port Compatibility
Matching port sizes and hose types reduces the number of adapters and potential leak points. Correct fittings maintain system pressure and prevent turbulence that can degrade pump life.
Check whether the cooler uses common metric or SAE fittings, and whether adapters or new hose lengths are required. Choose a solution that minimizes plumbing complexity to keep the hydraulic circuit reliable.
Materials and Corrosion Resistance
Coolers operate in a harsh environment where road salt, debris, and moisture can accelerate corrosion. Aluminum cores with protective coatings or corrosion-resistant brazing tend to last longer than untreated metals.
Also consider the quality of fittings, clamps, and any included hardware. Stainless fasteners and durable coatings help extend service life and reduce maintenance needs in varied climates.
Installation Complexity and Required Tools
Installation difficulty affects time, cost, and the chance of leaks or damage during fitment. Some coolers are designed as bolt-in replacements while others require custom bracket fabrication or fluid line rerouting.
Evaluate whether the kit includes hoses and hardware, whether common hand tools are sufficient, and whether the vehicle needs lifting or removal of nearby components. Simpler installs reduce the risk of improper connections and make future maintenance easier.
Maintenance and Serviceability
Consider how accessible the cooler will be for inspections, cleaning, or replacement. Finned cores can become clogged with debris and need periodic clearing to maintain airflow and heat transfer.
Also check whether the design allows for straightforward hose replacement or flushing of the steering circuit. A serviceable cooler reduces long-term ownership costs and downtime.
FAQ
How do I know if my Lincoln Navigator needs a power steering cooler?
Signs that a cooler may be needed include repeated steering fluid overheating during towing or extended low-speed driving, a burning smell from the engine bay, or reduced steering responsiveness under load. Visual inspection for discolored or foamy fluid can also indicate elevated temperatures. If you experience these symptoms often, adding a cooler can help manage heat buildup.
Will installing a cooler require changes to the steering system on my Navigator?
Many coolers designed for the Lincoln Navigator use existing mounting points and standard hose fittings to minimize plumbing changes. Some installations may require minor hose rerouting or new hose lengths, while others include vehicle-specific brackets. Extensive system redesigns are uncommon when you choose a unit intended for the Navigator.
Can a cooler prevent all power steering failures?
A cooler reduces the risk of heat-related failures by keeping fluid temperatures lower, but it does not eliminate other causes such as contamination, mechanical wear, or manufacturing defects. Regular fluid maintenance and addressing worn components remain important alongside a cooling upgrade.
How much maintenance does a steering cooler need?
Maintenance is usually minimal. Periodic visual checks for leaks, ensuring that fins are free of debris, and verifying hose clamps remain tight are typical tasks. If the cooler is exposed to heavy contamination, occasional rinsing of the fin area can help maintain airflow and cooling performance.
Are aftermarket coolers safe for the Lincoln Navigator steering system?
Aftermarket units can be safe when they are designed for the vehicle and use compatible fittings and quality materials. Focus on products with confirmed Navigator fitment, corrosion-resistant construction, and clear installation instructions to reduce the risk of improper installation or leaks.
How We Chose the Best Lincoln Navigator Power Steering Cooler
We focused on products designed or confirmed to fit the Lincoln Navigator and on measurable attributes that affect real-world performance. Key evaluation criteria included thermal capacity and heat rejection effectiveness to determine how well a unit lowers fluid temperature under load; fitment and mounting options to ensure secure installation in the Navigator's engine bay; compatibility with factory steering plumbing and hose sizes to reduce modification; build materials and corrosion resistance for long-term durability in road conditions; and installation complexity, including whether common hand tools and basic mechanical knowledge are sufficient. Excluded from consideration were universal items lacking confirmed Navigator fitment and any units that required major steering-system redesigns. We also deprioritized products with unclear material specifications or unverified cooling claims. The resulting list emphasizes coolers that balance proven cooling performance, vehicle-specific compatibility, and straightforward installation.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a power steering cooler for a Lincoln Navigator, prioritize cooling capacity and confirmed fitment to avoid extra fabrication and plumbing work. Durable materials and compatible fittings reduce the likelihood of leaks and extend service life. Balance the expected towing and low-speed duty with installation complexity and maintenance access. Selecting a vehicle-specific cooler with straightforward mounting and appropriate hose compatibility will give the best mix of reliability and ease of service.
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