Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclosure here.
If you drive an Infiniti FX35, choosing the right radiator matters for day-to-day reliability and long-term engine health. A correctly sized, well-built radiator helps prevent overheating, minimizes downtime from leaks, and keeps your cooling system running efficiently under load. This guide lists our shortlisted top picks for the FX35 radiator market. We evaluated units based on fitment, construction, cooling capacity, and ease of installation so you can quickly find options that match your needs and driving conditions.
Looking for other parts? See all Infiniti FX35 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Torchtree CU13078 Replacement Radiator for Infiniti FX35 (2009–2012) |  |
| Most Popular A crowd favorite that many people choose with confidence | DWVO Complete Radiator for 2013–2020 Infiniti JX35/QX60 and Pathfinder |  |
| Best Quality Built to a higher standard if you want something more solid | TRQ Dual Radiator & Condenser Fan Assembly (RFA83470) |  |
| Best Budget The cheapest option that still gets the job done reliably | KAX CU13078 Replacement Radiator for Infiniti FX35 and Related Models | |
| Most Sold A high-volume bestseller chosen again and again | Spectra Premium CU2691 Complete Radiator with TOC |  |
| Best Value for Money The sweet spot between price and what you get | KAX CU13078 Engine Cooling Radiator (Replacement for Infiniti/FX35 & Related Models) |  |
| Best Overall The best all-around choice for most situations | TYG Radiator Cooling Fan Assembly (3-Pin) — Direct Replacement for Infiniti FX35 |  |
1. Torchtree CU13078 Replacement Radiator for Infiniti FX35 (2009–2012)
| Compatible vehicles | Infiniti FX35 2009–2012 3.5L |
|---|---|
| Core thickness | 1 in |
| Inlet diameter | 1-3/8 in |
| Outlet diameter | 1-3/8 in |
This Torchtree CU13078 radiator replaces the factory unit on 2009–2012 Infiniti FX35 3.5L engines and is built to bring the cooling system back to spec. It installs like a direct replacement using stock mounting points and inlet/outlet connections, so a standard radiator swap by a professional or experienced DIYer is straightforward. The core uses an aluminum construction with multi-louver fins and plastic tanks to improve heat dissipation and resist corrosion compared with older units. Torchtree reports pressure and leakage testing and the part matches multiple factory part numbers for fitment. Buyers benefit from a product that fixes overheating and restores dependable cooling without modifying hoses or brackets. Limitations to note are that fin density and some plastic clips can feel less robust than an original factory radiator, and shipping damage has been reported by a few customers so careful inspection on arrival is wise. Professional installation is recommended to ensure proper bleeding and system integrity.
Best for: Reliability-focused owners who prioritize restoring factory cooling performance on an Infiniti FX35 and want a straightforward, fit-and-forget replacement that addresses overheating issues.
Less Ideal for: Owners seeking a heavy-duty or performance-upgraded cooling solution or those unwilling to have a professional install and pressure-test the cooling system should consider alternative options.
- Direct-fit design for Infiniti FX35 2009–2012 for easy replacement
- Aluminum core with multi-louver fins for improved heat dissipation
- Matches multiple factory part numbers to simplify part selection
- Pressure and leakage testing reported by manufacturer
- Some plastic clips and fin density appear less durable than the original factory radiator
- Occasional reports of transit damage require inspection on delivery
Verdict A practical, direct-fit replacement that restores cooling for the FX35 3.5L with good thermal design but slightly less robust plastic components than the original factory part.
2. DWVO Complete Radiator for 2013–2020 Infiniti JX35/QX60 and Pathfinder
| Compatible vehicles | 2013–2020 Infiniti JX35/QX60 and Pathfinder |
|---|---|
| Core material | Aluminum |
| Tanks | PA66 GF30 inlet/outlet tanks |
| Weld type | TIG-welded |
This DWVO complete radiator is a direct-fit replacement designed to restore engine cooling on compatible Nissan/Infiniti V6 and L4 applications. It is typically used as a like-for-like replacement when a factory radiator leaks, becomes clogged, or fails; installers can expect to reuse some existing mounting hardware and sensors during installation. Notable features include a high-density, multi-louvered aluminum core for improved heat transfer, TIG-welded joints, PA66 GF30 inlet/outlet tanks, and a treated coating intended to resist corrosion. The unit ships without a radiator cap and recommends professional installation, although many DIYers report straightforward fit and alignment. Practical benefits are improved cooling efficiency and a factory-style fit that minimizes modification during swap. Important limitations include occasional reports of plastic tank or seam leaks and variability in build quality between units, so inspect for damage on arrival and be prepared to reuse OEM fittings or apply minor sealing measures if necessary.
Best for: Convenience-driven buyers who want a ready-fit replacement that minimizes shop time and modification, preferring a practical quick-swap solution.
Less Ideal for: Drivers seeking a long-term performance upgrade or heavy-duty commercial use should consider higher-end or upgraded-core radiators engineered for extended durability and stronger plastic components.
- Direct-fit replacement built to match factory mounting and hose locations
- Aluminum core with multi-louvered fins for stronger heat dissipation
- TIG-welded construction and corrosion-resistant coating for longer service life
- Includes foam corner packing to reduce shipping damage and a user manual
- Does not include a radiator cap or some small fittings that may need to be transferred from the original unit
- Some buyers report inconsistent plastic tank quality and occasional leaks out of the seams
Verdict A convenient, direct-fit aluminum radiator that restores factory cooling for compatible Infiniti models but inspect for plastic tank quality on arrival.
3. TRQ Dual Radiator & Condenser Fan Assembly (RFA83470)
| Power Connector Type | 2-Pin |
|---|---|
| Voltage | 12 Volts |
| Wattage | 2.16 watts |
| Material | Metal |
This TRQ dual fan assembly replaces the radiator and condenser fan pack on compatible Infiniti vehicles and is intended to restore cooling performance to factory levels. It arrives pre-assembled so installation is straightforward for a technician or experienced DIYer and eliminates trimming or modification in most cases. The assembly uses two fans with a 2-pin power connector and a 12 volt rating, matching factory electrical interfaces for plug-and-play replacement. In real-world use the unit clears the radiator and condenser properly, provides strong airflow to address overheating, and the metal construction and machined exterior give a solid initial impression. Some users report long trouble-free service while a minority have experienced plastic support breaks after months of use, so durability can vary by operating conditions. If you need a like-for-like replacement to recover cooling capacity on an FX35, this offers convenience and straightforward fitment, but check mounting points and inspect plastic fasteners during installation to catch potential weak spots.
Best for: Performance-oriented buyers who prioritize restoring reliable engine cooling and maintaining consistent operating temperatures on their Infiniti FX35 during spirited driving and towing.
Less Ideal for: Drivers seeking an upgraded high-performance aftermarket cooling solution or a lightweight racing-specific fan should consider purpose-built performance fans instead.
- Pre-assembled direct-fit design reduces installation time and avoids modification
- Matches factory electrical connector and 12V rating for plug-and-play replacement
- Dual-fan layout restores airflow for radiator and condenser to address overheating
- Metal construction and machined exterior provide a sturdy initial build quality
- Some reported failures of plastic support pieces months after installation affecting long-term durability
- Not a universal unit; fitment must be confirmed for specific FX35 production dates and configurations
Verdict A convenient, factory-style dual fan assembly that restores cooling capacity on the FX35 but inspect mounting supports for potential durability issues.
4. KAX CU13078 Replacement Radiator for Infiniti FX35 and Related Models
| Vehicle fitment | Infiniti FX35 RWD (2009 without towing package) |
|---|---|
| Core material | Aluminum core with plastic water tanks |
| Transmission cooler | Integrated (transmission oil cooler) |
This KAX CU13078 radiator is a direct-fit aftermarket replacement intended for Infiniti FX35 RWD (2009 without towing package) and related models. It replaces the factory radiator and includes a transmission oil cooler but not an engine oil cooler. Typical use is to swap this in during a radiator failure or coolant leak; the aluminum core and plastic tanks aim to restore cooling performance and resist corrosion. Notable features include leak testing at the factory, shockproof packaging for safer delivery, and generally positive buyer reports of correct fit and solid construction. Practical benefits are straightforward: it restores proper engine temperature control, integrates the transmission cooler, and is sold as a lower-cost alternative to dealer parts. Important limitations are occasional missing transmission fittings reported by some buyers and the common vulnerability of plastic end tanks compared with full-metal replacements, which may affect long-term durability under high-heat or heavy-duty towing conditions. Expect minor adjustments during installation on some vehicles and plan to verify or source any small fittings before you start.
Best for: Budget-conscious Infiniti owners who prioritize replacing a failed radiator with a low-cost, mostly plug-and-play aftermarket unit to get their FX35 back on the road quickly.
Less Ideal for: Drivers who regularly tow, run high underhood temperatures, or want the longest-lasting heavy-duty cooling solution should consider a higher-end full-metal or OEM-quality radiator instead.
- Direct-fit design for compatible Infiniti models including FX35 RWD (2009 w/o towing package) which simplifies installation
- Aluminum core with plastic tanks for good thermal conductivity at a lower price than dealer parts
- Includes transmission oil cooler integration so no separate cooler is required
- Factory leak testing reported by the manufacturer to reduce chance of out-of-box leaks
- Some units reported missing transmission cooler fittings requiring aftermarket adapters or fittings
- Plastic water tanks are less durable than all-metal radiators under extreme heat or heavy towing
- Does not include engine oil cooler
Verdict A cost-effective, direct-fit replacement radiator for FX35 owners that restores cooling and includes a transmission cooler but may need minor fittings and is less heavy-duty than all-metal alternatives.
5. Spectra Premium CU2691 Complete Radiator with TOC
| Model number | CU2691 |
|---|---|
| Manufacturer part number | CU2691 |
| Compatible vehicles listed | Nissan Armada, Titan, Infiniti QX56 (as provided) |
The Spectra Premium CU2691 is a direct-fit replacement radiator designed to restore factory cooling performance without modification. It installs as a drop-in unit and includes the accessory pack needed for a straightforward swap, so it is typically used when the original radiator develops leaks, clogging, or overheating. Notable features include high-density multi-louvered fins for improved heat transfer and a transmission oil cooler integration to keep engine and transmission temperatures in check. Spectra emphasizes manufacturing and quality-control steps intended to match factory-spec performance, and several user reports show correct fittings and reliable cooling after extended use. Limitations to consider are packaging and shipping damage reported by some buyers and occasional cosmetic fin damage on arrival, which can require inspection before installation. Also some users noted lighter construction compared with older factory units, so long-term durability will depend on installation care and road conditions.
Best for: A risk-averse mainstream buyer seeking a factory-style replacement that restores reliable cooling and minimizes installation uncertainty on a vehicle they plan to keep long-term.
Less Ideal for: Drivers who prioritize maximum longevity under heavy-duty use or severe off-road conditions should consider heavy-duty aftermarket radiators with reinforced construction instead.
- Direct drop-in design for straightforward installation with included accessory pack
- High-density multi-louvered fins intended to improve cooling efficiency
- Built to integrate the transmission oil cooler and A/C condenser without modification
- Manufacturing and quality-control aimed to match factory-spec performance
- Multiple customer reports of insufficient packaging leading to fin damage or bent cores on arrival
- Some units feel lighter than original radiators, raising questions about long-term robustness
Verdict A practical, factory-fit replacement radiator that restores cooling performance but requires careful inspection at delivery due to packaging and occasional cosmetic damage.
6. KAX CU13078 Engine Cooling Radiator (Replacement for Infiniti/FX35 & Related Models)
| Compatible Models | Includes FX35 (2009-2012) and other specified Infiniti models |
|---|---|
| Core Thickness | 1 in |
| Inlet Diameter | 1-3/8 in |
| Outlet Diameter | 1-3/8 in |
This KAX CU13078 radiator is a direct replacement intended to restore factory cooling performance on compatible Infiniti V6 models such as the FX35. It installs in the same location as the factory unit and uses a high-density aluminum core with multi-louvered fins and TIG-welded seams to improve heat transfer and resist leaks. The manufacturer lists multiple matching OEM part numbers and the unit is packaged with reinforced shockproof protection for safer delivery. In real-world use the radiator will serve as a straightforward swap when the original has failed from corrosion or damage, offering stable cooling and reportedly easy fitment for owners who want a cost-effective repair. Limits to consider are that installation is best handled by a technician familiar with Infiniti cooling systems and long-term durability depends on proper coolant maintenance; the seller also recommends professional install and provides two-year support. This model is a practical, budget-focused replacement for FX35 owners who need reliable cooling without paying a premium.
Best for: Practical owners seeking a value-focused repair that restores reliable cooling without upgrading the whole system; ideal for owners prioritizing cost-effective, factory-style replacements.
Less Ideal for: Owners who want a high-performance or heavily upgraded cooling solution for racing or sustained high-load driving should consider purpose-built performance radiators instead.
- Listed as a direct replacement compatible with the FX35 so it lines up with factory mounting points and hose connections
- Aluminum core with multi-louvered fins for improved heat dissipation over aged or damaged radiators
- Precision TIG welding and PA66 GF30 tanks claimed to reduce leakage risk
- Reinforced shockproof packaging reduces the chance of transit damage
- Intended fit requires verification and professional installation is recommended
- Long-term durability depends on coolant system care and cannot be guaranteed beyond manufacturer support
Verdict A budget-friendly, factory-style replacement radiator that restores cooling for the FX35 with claimed leak-resistant construction and straightforward fitment.
7. TYG Radiator Cooling Fan Assembly (3-Pin) — Direct Replacement for Infiniti FX35
| Power Connector Type | 3-Pin |
|---|---|
| Voltage | 13.5 Volts |
| Wattage | 60 watts |
| Maximum Rotational Speed | 1792 RPM |
| Noise Level | 49 Decibels |
This TYG radiator cooling fan assembly is a direct-fit replacement meant to restore radiator airflow and cooling performance on compatible Infiniti vehicles such as the FX35. It installs in place of the original fan assembly and uses the same 3-pin connector configuration, so wiring and mounting are straightforward for a DIY swap or a shop installation. The motor is rated around 60 watts with a tested top speed near 1792 RPM and the manufacturer reports noise under controlled conditions around 49 dB, which makes it acceptably quiet for daily driving and heavier A/C or traffic loads. The listing emphasizes factory-quality materials and accelerated cycle testing to provide durability and reliable operation under normal use. Some buyers have reported occasional fitment or hardware issues, so verify connector pin count and part references before ordering and inspect mounting hardware on arrival. If installed correctly, it restores cooling function and helps prevent overheating in stop-and-go traffic.
Best for: Balanced owners looking for a straightforward, factory-quality replacement to restore reliable cooling on their FX35 without chasing the cheapest option.
Less Ideal for: Drivers who want a universal or custom cooling solution or who need upgraded high-performance cooling beyond the stock specification should consider aftermarket performance fans or professional upgrades instead.
- Direct-fit design intended to match factory mounting and connector layout for compatible vehicles
- Motor performance suitable for restoring radiator airflow under A/C load and traffic
- Balanced blades and tested motor produce relatively low operating noise
- Manufactured and cycle-tested to replicate factory-quality performance
- Some customers reported loose or missing hardware on delivery requiring inspection or replacement
- Fitment depends on confirming the correct OEM reference and connector count before purchase
Verdict A direct-replacement fan assembly that aims to match factory performance for the FX35 and restore reliable cooling, provided you confirm fitment and inspect hardware on arrival.
Choosing the Right Infiniti FX35 Radiator: Key Factors to Consider
Fitment and Mounting Alignment
Correct fitment is fundamental because even a high-capacity radiator will fail to perform if its inlet, outlet, or mounting points do not match the Infiniti FX35 chassis. Check that the mounting tabs, hose connection locations, and sensor ports align with the vehicle so you avoid adapter hoses or modification.
Poor alignment increases installation time and can cause stress on hoses and fittings, leading to premature leaks. Choosing a radiator with direct-fit dimensions reduces the chance of installation errors and preserves the vehicle's cooling plumbing integrity.
Core Material and Construction
The core material, commonly aluminum or copper-brass, affects heat transfer efficiency and durability. Aluminum cores tend to be lighter and offer good thermal conductivity when paired with high-quality fins and welded tanks, while copper-brass can be easier to repair in some cases but is usually heavier.
Pay attention to construction details such as brazing quality, tank attachment method, and reinforcement around the inlet and outlet. A well-built core resists vibration fatigue and helps maintain consistent cooling performance over time.
Cooling Capacity and Core Size
Cooling capacity depends on factors like core thickness, height, and fin density. A thicker or larger core usually provides better heat rejection, which helps under heavy loads, hot climates, or towing situations. However, oversized cores can be heavier and may require more clearance under the hood.
Consider how you use the FX35: routine city driving rarely needs extreme capacity, but if you frequently encounter steep grades or high ambient temperatures, choose a radiator with higher heat rejection capability to reduce the risk of overheating.
Corrosion Resistance and Longevity
Radiators are constantly exposed to coolant and environmental contaminants, so corrosion resistance determines long-term reliability. Look for treatments like protective coatings, corrosion-resistant alloys, and quality seals at joints and welds to reduce the risk of pinhole leaks and weakened tanks.
Good corrosion resistance lowers lifetime maintenance needs and delays major repairs. Consider the local climate and coolant maintenance habits when prioritizing this factor.
Ease of Installation and Serviceability
A radiator that is straightforward to install saves time and reduces the potential for installation mistakes. Features that improve serviceability include preinstalled sensor ports, standard hose connections, and clear access to drain and bleed points. Direct-fit units typically eliminate the need for cutting or modifying brackets and hoses.
Also consider whether routine maintenance tasks like coolant flushes and hose replacement are easier with the radiator design you choose. Simpler serviceability cuts shop labor time and makes future repairs less disruptive.
Compatibility With Cooling System Components
The radiator does not operate alone; it works with the water pump, thermostat, hoses, and fans. Ensure the radiator is compatible with the FX35 fan assembly and that coolant flow characteristics match the system design. Differences in core resistance or inlet placement can affect flow and cooling balance.
Selecting a radiator that integrates smoothly with existing components reduces the chance of thermal hotspots and keeps the cooling loop operating within intended parameters.
FAQ
How do I know if my Infiniti FX35 radiator is failing?
Common signs include visible coolant leaks under the vehicle, frequent overheating or temperature spikes, and a sweet coolant odor in the engine bay. Also watch for low coolant levels without visible external leaks, which can indicate internal failure. If you notice any of these symptoms, have the cooling system inspected promptly to avoid engine damage.
Can I replace the radiator myself on an Infiniti FX35?
Many owners can handle a radiator swap with basic mechanical skills and common tools, provided the replacement is a direct-fit unit. You will need to drain and properly refill the cooling system, bleed air from the loop, and verify hose and sensor connections. If you are uncomfortable with coolant handling or complex hose routing, professional installation is advisable.
How often should the radiator and coolant be inspected or serviced?
Inspect the radiator visually at every scheduled maintenance interval and check coolant level and condition regularly. A coolant flush schedule depends on the coolant type and vehicle use but is commonly recommended every few years. Regular inspections can catch small leaks or corrosion early before they escalate into major failures.
Is an OEM part necessary for the Infiniti FX35 radiator replacement?
OEM radiators offer a direct match to factory specifications, but many aftermarket direct-fit radiators provide comparable fit and performance. The choice often depends on your priorities for warranty, availability, and construction features. Focus on confirmed fitment, quality construction, and components that meet the FX35 cooling requirements.
What should I check after installing a new radiator?
After installation, verify that all hose clamps and sensor connections are secure, then refill the system with the correct coolant and follow the proper bleeding procedure to remove trapped air. Run the engine to operating temperature while monitoring for leaks and stable temperature readings. Recheck coolant level after a short drive and top up as needed.
How We Chose the Best Infiniti FX35 Radiator
We focused on components that directly affect cooling performance and vehicle compatibility. Key evaluation criteria included core material and design, overall cooling capacity measured by core size and fin density, inlet and outlet alignment to ensure proper Infiniti FX35 fitment, and corrosion resistance for long-term durability. We also considered manufacturing quality including welds and tank construction, and how straightforward the unit is to install with standard tools. We excluded refurbished or heavily modified radiators and units that required major cooling-system rework or custom piping. Products that did not provide clear fitment data for the FX35 were also removed. The result is a list of well-built radiators that balance thermal performance, fit and finish, and practical installation considerations for the Infiniti FX35 owner.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right radiator for an Infiniti FX35 means balancing proper fitment, core construction, and cooling capacity against ease of installation and long-term durability. Prioritize direct-fit units with solid construction and adequate heat rejection for your typical driving conditions. Keep in mind tradeoffs such as heavier high-capacity cores versus easier installation with standard-fit units. Regular inspection and coolant maintenance will extend radiator life and protect engine performance.
Explore More:
- Check out all Infiniti FX35 parts & accessories
- Explore Cooling System
- Browse all Auto Parts
