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If you drive an Infiniti G35 and want to protect the steering system, choosing the right power steering cooler matters. Proper cooling keeps fluid temperatures lower, which reduces wear on seals and the pump and helps prevent sudden steering issues during spirited driving or in high-heat conditions. This guide shortlists the top options for the Infiniti G35 and explains the factors that matter most for fitment and performance. Below you will find our top picks, each selected for its combination of cooling capability, ease of installation, and reliability.
Looking for other parts? See all Infiniti G35 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Dynamic Power Steering 45258 Power Steering Cooler |  |
| Best Quality Built to a higher standard if you want something more solid | Dorman 918-325 Power Steering Cooler |  |
| Best Budget The cheapest option that still gets the job done reliably | Chrysler Genuine Power Steering Cooler |  |
| Most Sold A high-volume bestseller chosen again and again | Edelmann Elite Power Steering Cooler (Model 58040) |  |
| Best Value for Money The sweet spot between price and what you get | Derale 13200 Power Steering Cooler Kit |  |
| Best Overall The best all-around choice for most situations | Dorman Power Steering Cooler 918-301 |  |
1. Dynamic Power Steering 45258 Power Steering Cooler
| Part Number | 45258 |
|---|---|
| Material | steel |
| Compatible With | '99-'07 Chevrolet Silverado, GMC Yukon; 1500, 2500, HD |
| Made In | North America |
| Warranty Description | Lifetime Warranty |
This Dynamic Power Steering cooler is a direct-fit replacement built to match factory specifications and keep hydraulic steering systems running cooler under load. It installs in place of the original cooler and is typically used to reduce power steering fluid temperatures during towing, heavy steering input, or hot-weather driving. Notable features include brazed steel construction, corrosion-resistant coating, and longer inlet/outlet lines that let you trim for a precise fit. In practice that construction gives solid durability and consistent heat rejection compared with a bare tube-and-fin cooler, and customers report straightforward bolt-in installation. The unit is made in North America and intended as a like-for-like factory-quality replacement. Limitations are that it is designed for specific Chevrolet and GMC applications, so fitment must be verified for other vehicles, and the steel construction is heavier than some lightweight aluminum aftermarket coolers which may offer marginally better corrosion resistance over very long service life.
Best for: Reliability-focused buyers who prioritize a factory-quality replacement that reduces steering-system heat and minimizes the likelihood of repeat repairs.
Less Ideal for: Buyers seeking the lightest-weight aftermarket option or those who require a cooler specifically engineered for Infiniti G35 fitment should consider alternatives tailored to that vehicle.
- Manufactured to original factory specifications for direct replacement fit
- Brazed steel fins and coated finish resist corrosion and provide durable heat rejection
- Longer inlet/outlet lines allow trimming for a precise installation
- Made in North America, built from new components rather than remanufactured parts
- Fitment targets GM trucks and SUVs so it is not guaranteed to fit other makes or models
- Steel construction is heavier than some aftermarket aluminum coolers
Verdict A durable, factory-spec steel cooler that reliably lowers steering fluid temperatures for buyers who want a direct replacement and long-term dependability.
2. Dorman 918-325 Power Steering Cooler
| Model | 918-325 |
|---|---|
| Manufacturer | Dorman |
| Manufacturer Part Number | 918-325 |
| OEM Part Number | 15275714; 15275714 |
This Dorman power steering cooler is a direct-fit replacement designed to restore the steering system's cooling performance after a failed or worn cooler. It installs where the factory cooler sits and is intended to replicate the original part's fit and routing so you can reuse factory brackets and hoses. Built from corrosion-resistant components, the cooler aims to reduce fluid temperatures under heavy steering loads, which helps maintain steering responsiveness and extends pump life. Installation is straightforward for a competent DIYer or professional and reviews indicate consistent fit and function. Limitations to consider are that the part listing specifies vehicle compatibility and fit should be verified before purchase, and Dorman’s aftermarket design may use different manufacturing details than the factory part even though fit is intended to match. For a performance-oriented buyer wanting reliable steering cooling without modifying the vehicle, this cooler provides a practical factory-style replacement.
Best for: Performance-oriented owners who prioritize preserving steering responsiveness and protecting the pump under spirited driving and who want a high-quality, factory-style replacement.
Less Ideal for: Buyers seeking an aftermarket upgrade with increased cooling capacity or custom fitment for motorsport use should consider purpose-built performance coolers instead.
- Direct replacement designed to match original fit and routing
- Corrosion-resistant construction for longer service life
- Simple install compatible with factory mounting for quick swap
- Engineered to lower power steering fluid temperature under load
- Product listing requires verifying exact vehicle fit before purchase
- Not described as a performance-upgrade cooler with increased core capacity
Verdict A reliable factory-style replacement cooler that restores steering fluid cooling for drivers who want performance-minded durability without modifying the vehicle.
3. Chrysler Genuine Power Steering Cooler
| Brand | Chrysler |
|---|---|
| Manufacturer | Chrysler |
| Item model number | 52125437AC |
This Chrysler genuine power steering cooler is a direct-fit replacement part designed to control fluid temperature in vehicles that require this specific Mopar unit. It installs in the steering system to dissipate heat generated during hydraulic steering operation, which helps maintain consistent steering performance and extends the life of the steering pump and fluid. As a factory-quality part, it matches the original fit and mounting points, making installation straightforward for a mechanic familiar with the vehicle. The cooler is compact and intended for vehicles that use this exact part number, so it is a simple, no-frills solution for restoring factory cooling capacity. Limitations are that it is a single-purpose replacement with no performance upgrades over factory spec and compatibility is limited to vehicles that accept this Mopar part number, so buyers should confirm fitment for their Infiniti G35 before purchasing.
Best for: Budget-conscious Infiniti G35 owners seeking an affordable, factory-style replacement to restore steering fluid cooling and maintain reliability without performance upgrades.
Less Ideal for: Drivers looking to increase steering cooling capacity for heavy track use or towing should choose an upgraded aftermarket cooler instead.
- Factory-quality Mopar part designed to match original fit and mounting
- Simple direct-fit replacement reduces installation time and modification
- Compact design restores steering fluid cooling without changing system behavior
- No performance improvement over factory cooler
- Compatibility limited to vehicles that accept this specific part number
Verdict A cost-conscious, factory-fit replacement cooler that restores original steering fluid cooling but does not boost performance.
4. Edelmann Elite Power Steering Cooler (Model 58040)
| Brand | Edelmann |
|---|---|
| Model | 58040 |
| Compatible with | 2020-2011 Dodge Journey |
This Edelmann Elite power steering cooler is built to lower hydraulic temperatures in power steering systems to help extend the life of pumps, hoses, fluid, and seals. It installs inline with the steering fluid circuit and is intended for vehicles that see heavier steering loads where heat builds up, such as spirited street driving or towing. The cooler follows factory-quality specifications and uses furnace brazed construction for durability and tighter tolerances than many aftermarket alternatives. In practice it provides better heat dissipation than a stock cooler, which can reduce component failures and maintain smoother steering feel under sustained load. Installation requires basic mechanical skills and routing space near the front of the vehicle, and fitment must be confirmed for the Infiniti G35 model year you own. It does not include mounting hardware specific to every chassis so expect to source brackets or fittings for a clean install on some cars.
Best for: Risk-averse mainstream buyers who prioritize protecting steering components and prefer products built to factory-quality standards rather than cutting-edge or budget options.
Less Ideal for: Drivers looking for a universal plug-and-play cooler with all mounting hardware included or those who prefer a low-cost short-term replacement should consider other options.
- Factory-quality construction with furnace brazing for durability
- Designed to reduce power steering system temperatures and extend component life
- Tighter manufacturing tolerances compared with many aftermarket coolers
- May require additional mounting brackets or fittings for a neat installation
- Fitment and hose adapter needs to be confirmed for specific Infiniti G35 model years
Verdict Choose this cooler if you want a factory-quality, furnace-brazed unit to reduce steering-system heat and prolong component life, but be prepared to confirm fitment and add mounting hardware for the Infiniti G35.
5. Derale 13200 Power Steering Cooler Kit
| Special Feature | Expanded Copper Tubing and Aluminum Cooling Fins, Hardware Kit Included |
|---|---|
| Inlet size | 11/32 inch hose barb inlets |
| Model | 13200 |
| Item weight | 1.5 Pounds |
The Derale 13200 is a simple inline power steering cooler kit designed to lower fluid temperatures and extend pump and seal life on a vehicle like the Infiniti G35. It installs inline with the power steering hoses and is small enough to tuck behind the grille or mount to the radiator support. Notable features include 1/2 inch copper tubing expanded into aluminum cooling fins and 11/32 inch hose barb inlets, plus a basic hardware kit and four feet of hose included. In practice the cooler provides measurable temperature control for towing, spirited driving, or repeated low-speed maneuvers that heat steering fluid. Installation is straightforward for a competent DIYer, though several reviewers note the supplied hose and clamps can be tight and you may want to replace them with higher-quality hose and clamps or add extra hose for alternate mounting locations. The cooler is light and low-profile, but the supplied mounting pieces are minimal, so fabricate stronger mounts for aggressive driving or off-road use.
Best for: Practical optimizers who want a cost-effective, easy-to-install upgrade to reduce power steering fluid temperatures on an Infiniti G35 and extend component life without a major modification.
Less Ideal for: Drivers seeking a heavy-duty, race-grade cooling solution or a plug-and-play kit with premium fittings and long pre-routed hoses should consider higher-end models.
- Compact, low-profile cooler that fits behind the grille or on the radiator support
- Copper tubing with aluminum fins for efficient heat transfer
- Comes with basic hose and hardware so you can complete a DIY install
- Lightweight and unobtrusive once mounted
- Included hose and clamps are undersized and may require replacement or additional hose length
- Basic mounting hardware may not be robust enough for heavy off-road use
Verdict A budget-friendly, compact cooler that effectively lowers steering fluid temperatures for everyday and spirited driving on the Infiniti G35 but may need upgraded hoses and mounts for demanding use.
6. Dorman Power Steering Cooler 918-301
| Material | Alloy Steel |
|---|---|
| Nominal Inside Diameter | 0.37 Inches |
| Nominal Outside Diameter | 0.65 Inches |
| Manufacturer | Dorman Products |
This Dorman power steering cooler is a direct-replacement cooling assembly intended to replace a failed factory cooler. In practice it installs in the vehicle’s front-end area and routes between the power steering pump and transmission or rack to lower fluid temperature and reduce stress on the system. The unit is machined alloy steel construction and includes the cooler and attached lines so you do not need to fabricate hoses. Buyers report it fits like the original and is straightforward to install once grille and headlight access is provided. The cooler’s durable construction and factory-style fit mean reliable service for routine driving and towing, but a few users noted cheaper hose clamps and occasional concerns about hose longevity, so inspect and upgrade the clamps during installation. If your installation requires exact factory fittings or long-term upgraded hoses, plan to replace the supplied clamps or hoses for added longevity. This part is a practical, budget-friendly way to restore cooling function without modifying the steering system.
Best for: Balanced, practical buyers who value a reliable factory-style replacement and prefer a straightforward repair that restores cooling without modifying the steering system.
Less Ideal for: Owners seeking a heavy-duty aftermarket upgrade with reinforced hoses and premium clamps or those who need parts specifically verified for Infiniti G35 fitment should look elsewhere.
- Direct replacement designed to match original fit and function
- Machined alloy steel construction for corrosion resistance and durability
- Includes attached lines to reduce fabrication or custom plumbing
- Well packed and commonly reported as straightforward to install
- Common part number compatibility with many GM trucks and SUVs
- Hose clamps supplied are basic and may need replacing for a leak-free install
- Some users reported shorter-lived rubber hoses compared with OEM lines
Verdict A reliable, factory-style replacement cooler that restores power steering cooling affordably, but plan to upgrade clamps or hoses if you want a premium long-term solution.
Choosing the Right Infiniti G35 Power Steering Cooler: Key Factors to Consider
Cooling Capacity
Cooling capacity determines how effectively a cooler lowers power steering fluid temperature under load. Models with larger fin area, more internal fluid passages, or increased surface exposure to airflow usually remove more heat, which helps maintain stable operating temperatures during heavy use.
Higher cooling capacity can reduce thermal stress on seals and the pump, but it may require more space and airflow. Consider driving conditions such as towing, track use, or hot climates, because those scenarios increase thermal demand and make higher capacity more valuable.
Fitment And Mounting
Fitment is crucial for the Infiniti G35 because limited engine-bay space demands precise mounting points and adjustable brackets. A cooler that offers vehicle-specific brackets or an adjustable mounting kit will save installation time and reduce the need for custom fabrication.
Assess available clearance near the radiator and condenser, and ensure hoses can be routed without excessive bending or contact with hot surfaces. Proper mounting reduces vibration and the risk of chafing, both of which affect long-term reliability.
Connection Type And Hose Compatibility
Connection type affects leak resistance and long-term reliability. Look for coolers that use standard pressure-rated hose fittings compatible with Infiniti G35 power steering lines, or that include crush-type fittings or adapters for a secure seal.
Hose material and diameter also matter because they influence flow rate and resistance. Reinforced hoses resist expansion and heat degradation, maintaining consistent fluid flow and pressure during demanding use.
Materials And Corrosion Resistance
Materials influence both durability and heat transfer. Aluminum cores are common because they offer good thermal conduction and are relatively lightweight, while stainless or plated fittings resist corrosion in exposed engine-bay environments.
Protective coatings and quality welding reduce the risk of leaks over time. If you drive in wet or salty conditions, prioritize corrosion-resistant finishes and robust brazing to extend service life.
Installation Complexity
Installation complexity affects whether you can fit the cooler yourself or need professional help. Kits that include vehicle-specific brackets, preformed hoses, and clear instructions shorten install time and reduce error risk.
If a cooler requires custom bracket fabrication or extended hose runs, factor in labor time and the potential need for additional fittings. Simpler installations help maintain factory reliability and lower the chance of post-installation leaks.
Maintenance And Serviceability
Maintenance considerations include accessibility for periodic inspections and ease of replacing hoses or fittings if needed. Coolers with accessible mounting points and standard fittings simplify troubleshooting and repairs.
Also consider whether the design allows for cleaning or flushing without full removal. Serviceable components reduce long-term ownership costs and minimize downtime if a component needs replacement.
FAQ
Do I need a power steering cooler for my Infiniti G35?
You might benefit from a cooler if you frequently drive in hot climates, use the vehicle for track or towing, or notice higher-than-normal steering temperatures. A cooler can reduce fluid breakdown and extend component life, but for typical daily driving it is often optional.
How hard is it to install a cooler on an Infiniti G35?
Installation difficulty varies by kit. Vehicle-specific kits with brackets and preformed hoses are usually straightforward for a competent DIYer. More generic units may require fabrication, additional fittings, or professional installation to ensure leak-free routing and secure mounting.
Where is the best location to mount a power steering cooler on an Infiniti G35?
Mounting the cooler where it receives good airflow, typically in front of or near the radiator area, gives the best heat rejection. Ensure there is enough clearance from moving parts and hot surfaces, and route hoses to avoid sharp bends or chafing points.
Will adding a cooler change steering feel?
A properly installed cooler should not noticeably change steering feel. It reduces fluid temperature, which can maintain consistent hydraulic properties. Any change in feel is more likely to result from air trapped in the system after installation rather than the cooler itself.
How do I choose the right hose and fittings?
Select hoses and fittings rated for high-pressure power steering use and compatible with the Infiniti G35 connection sizes. Reinforced hoses that resist heat and expansion perform better under load. If possible, choose kits that include correct-size fittings to avoid mismatches.
Can a cooler prevent power steering overheating completely?
A cooler reduces the risk of overheating by improving heat rejection, but it may not eliminate overheating if there are underlying issues such as a failing pump, restricted flow, or excessive system leaks. Treat a cooler as part of a broader maintenance strategy.
How We Chose the Best Infiniti G35 Power Steering Cooler
We focused on attributes that directly affect real-world performance and compatibility with the Infiniti G35. Key evaluation criteria included cooling capacity measured by surface area and airflow design, physical fitment and mounting adaptability to the G35 chassis, hose and connection types for leak-free integration, and construction materials that resist corrosion and vibration. We also weighed installation complexity and the availability of vehicle-specific mounting hardware or kits to reduce installation time. Durability factors such as braid-layered hoses, reinforced fins, and quality fittings were considered to estimate long-term reliability under higher fluid temperatures. Excluded from consideration were units lacking clear fitment information for the Infiniti G35, products with unclear materials or vague connection specs, and any cooler intended solely for generic or non-automotive hydraulic use. The result is a list of solutions that balance cooling performance with practical, G35-specific installability.
Our full evaluation process is outlined in our review methodology.
Conclusion
When selecting a power steering cooler for an Infiniti G35, prioritize fitment and cooling capacity to match your driving conditions. Durable materials, correct connections, and a design that receives good airflow will deliver the most reliable temperature control. Weigh installation complexity against the benefits of lower fluid temperatures. For high-stress driving or hot climates, choose a higher-capacity, vehicle-compatible cooler; for occasional use, a simpler, easier-to-install option may be sufficient.
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