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 Acura TSX, a failing water pump can cause overheating and unpredictable engine performance. Choosing the right replacement matters because proper fit and durable construction keep coolant circulating and help avoid roadside breakdowns.This guide covers our seven shortlisted water pumps for the Acura TSX and explains the practical criteria we used to evaluate them, including compatibility, durability, and ease of installation. Read on to understand which features matter most and what to check before you buy.
Looking for other parts? See all Acura TSX parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | ACDelco Gold 252-936 (19297948) Engine Water Pump |  |
| Most Popular A crowd favorite that many people choose with confidence | TRQ Engine Water Pump (WPA07415) — Direct-Fit Replacement |  |
| Best Quality Built to a higher standard if you want something more solid | A-Premium Timing Belt Kit with Water Pump (fits Honda/Acura 3.0–3.7L V6) |  |
| Best Budget The cheapest option that still gets the job done reliably | REVO Water Pump – replacement for Acura TSX and select Honda 2.4L engines |  |
| Most Sold A high-volume bestseller chosen again and again | MNJWS Timing Belt and Water Pump Kit for Honda/Acura V6 Engines |  |
| Best Value for Money The sweet spot between price and what you get | AISIN WPH-801 Engine Water Pump with Gasket |  |
| Best Overall The best all-around choice for most situations | Nakuuly Timing Belt Kit with Water Pump (TCKWP329) |  |
1. ACDelco Gold 252-936 (19297948) Engine Water Pump
| Brand | ACDelco |
|---|---|
| OEM Part Number | 19297948 |
| Automotive Fit Type | Universal Fit |
| Model | Water Pump |
This ACDelco Gold water pump replaces the factory unit to circulate coolant through the radiator and engine, restoring proper temperature control on an Acura TSX. It includes gaskets, seals, and O-rings to simplify installation and reduce the chance of leaks. The pump uses heat-treated shaft assemblies and sealed, lubricated bearings for durability, and coated seals aimed at longer life compared with basic aftermarket pumps. In real-world use this means a reliable replacement that fits like a factory-quality part and can fix overheating or bearing-noise issues without additional parts. Installation is typical for a TSX water pump job and should take a few hours for a mechanic or experienced DIYer; having the included seals helps avoid extra trips for parts. Limitations are that longevity can still vary with driving conditions and coolant maintenance, and some users reported bearings eventually wearing after several years of service, so expect occasional lifetime variance compared with a brand-new factory unit.
Best for: Reliability-focused buyers who prioritize a durable, well-documented replacement to restore cooling performance and avoid repeat repairs on their Acura TSX.
Less Ideal for: Owners looking for a short-term, lowest-cost fix or a factory-sourced OEM part should consider other options; this is aimed at lasting aftermarket replacement rather than lowest upfront cost.
- Includes gaskets, seals, and O-rings for a complete installation.
- Heat-treated shaft and sealed bearings for improved strength and durability.
- Coated seals intended to reduce leaks and extend seal life.
- Designed and marketed as a premium aftermarket replacement matching fit, form, and function.
- Service life can vary with use and some owners reported bearing failure after a few years.
- Not a guaranteed factory replacement part for every TSX model year so double-check fitment before purchase.
Verdict A dependable premium aftermarket water pump option for Acura TSX owners who want a near-factory replacement with included installation seals.
2. TRQ Engine Water Pump (WPA07415) — Direct-Fit Replacement
| Vehicle Service Type | Car |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Housing Material | Aluminum |
| Impeller Material | Cold Rolled Steel |
| Pulley Included | Yes |
This TRQ water pump is a direct-fit replacement intended for 4-cylinder Acura TSX and compatible Honda models. It includes a pulley and arrives pre-assembled to simplify installation for DIYers or technicians doing a coolant-system or timing-related service. The housing is aluminum and the impeller is cold-rolled steel, which provides a factory-style construction that handles standard coolant flow and pressures. TRQ emphasizes installation support with DIY videos and the unit ships with a machined exterior for a clean fit. Buyers can expect straightforward mounting and correct alignment with the factory mounting pattern, reducing the chance of modification during install. Limitations to note are that mounting hardware and thermostat are not included, so you will need those items separately if replacing multiple components, and there are mixed user reports about occasional early failures which suggests checking seals carefully at install and confirming compatibility before fitting. For routine repairs the pump offers a convenient, ready-to-install option when sourced for the correct vehicle fitment.
Best for: Buyers seeking a convenient, ready-to-install replacement who prioritize ease of fit and guided installation over sourcing individual components.
Less Ideal for: Those rebuilding entire coolant or timing systems who want a full kit that includes thermostat and mounting hardware should consider a more comprehensive kit instead.
- Direct-fit, pre-assembled design simplifies installation for DIY and shop repairs.
- Aluminum housing with a metal impeller offers factory-style construction and coolant handling.
- Includes pulley so fewer separate parts are required during replacement.
- Extensive DIY video library from the brand to guide installation and reduce uncertainty.
- Does not include mounting hardware, thermostat, or back housing so additional parts may be needed for a full service.
- Some user reports indicate occasional early failures, so quality can vary unit to unit.
Verdict A convenient, pre-assembled direct-fit water pump for Acura TSX owners who want an easier DIY replacement, but plan to buy any missing hardware or thermostat separately.
3. A-Premium Timing Belt Kit with Water Pump (fits Honda/Acura 3.0–3.7L V6)
| Material | HNBR |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Position | Front |
| Item model number | APTBK033 |
This A-Premium kit supplies a replacement timing belt, water pump with gasket, tensioner and idler pulleys, hydraulic tensioner, and cam and crank seals to perform a full timing service on compatible 3.0–3.7L Honda/Acura V6 SOHC engines. Typical use is a timing-belt interval or water-pump replacement where you want to replace all wear items at once to avoid repeat labor. The belt is made from HNBR material which improves heat and wear resistance compared with generic rubbers, and the included pump and seals let you address the common leak points during the job. Buyers report good fit and quieter engine operation after installation. Limitations to note are that this is a vehicle-specific aftermarket kit rather than a factory part so exact long-term durability can vary, and installation still requires moderate mechanical skill and tools since it is a deep-timing-service job. For a performance-oriented owner seeking a near-factory replacement and a complete parts set to minimize future work, this kit is a pragmatic choice.
Best for: Performance-oriented owners who prioritize restoring engine reliability and smoothness with a full-service timing kit and who prefer a near-factory replacement parts approach.
Less Ideal for: Casual DIYers seeking an easy, low-skill repair or buyers who prefer only manufacturer-branded OEM parts should consider alternatives.
- Complete kit includes timing belt, water pump, hydraulic tensioner, idler/tensioner pulleys and cam/crank seals so you can replace all wear items in one service.
- Timing belt made from HNBR for improved heat, chemical and wear resistance compared with generic belts.
- Reported good fitment and quieter, smoother engine operation after installation.
- Includes water pump with gasket which addresses a frequent cause of coolant leaks during timing service.
- Aftermarket part so long-term lifespan may vary compared with factory-original components.
- Requires experienced mechanical work and proper tools; not a simple plug-and-play maintenance item.
Verdict A complete, performance-minded timing kit that bundles a heat-resistant belt and water pump to restore engine smoothness while avoiding repeat labor.
4. REVO Water Pump – replacement for Acura TSX and select Honda 2.4L engines
| Fitment | Acura TSX 2004-2008 L4 2.4L |
|---|---|
| Included parts | Gasket included |
| Manufacturer part number | WU2137 |
| OEM reference numbers | 19200RAD003, 19200RAAA01, 19200RBB113, AW9461 |
This REVO water pump is a budget-minded replacement built to fit Acura TSX 2004–2008 2.4L engines and several compatible Honda models. It installs like a typical engine coolant pump and circulates pressurized coolant through the cooling system to prevent overheating. The unit ships machined and includes the gasket, and user reports show the impeller spins freely with no immediate leaks after installation. For everyday drivers the pump restores factory-style cooling performance at a lower cost than many brand-name alternatives. Limitations to consider are the typical longevity uncertainty that comes with lower-priced aftermarket parts and potential variations in build tolerances compared with factory-quality remanufactured pumps. Also installation still requires basic mechanical skills and coolant system bleeding after replacement. For budget-conscious owners who need a straightforward replacement for a TSX, this pump delivers core function without extras, but those seeking extended durability or dealer-backed parts may prefer OEM replacements.
Best for: Budget-conscious owners who prioritize a low-cost, direct-replacement pump to keep an older TSX running reliably with minimal upfront expense.
Less Ideal for: Owners seeking dealer-backed parts, extended service life guarantees, or those who prefer to avoid any risk of variable aftermarket quality should consider factory-quality replacements instead.
- Direct-fit compatibility with Acura TSX 2004–2008 2.4L for straightforward replacement
- Includes gasket and appears to have a freely spinning impeller on inspection
- Machined exterior finish and tested to circulate pressurized coolant like a factory pump
- Lower-cost option that restores cooling function without complex modifications
- Aftermarket longevity can vary compared with factory-quality parts
- Not backed by dealer parts program so service support depends on the seller
Verdict A cost-effective, direct-fit replacement for the TSX that restores cooling function at a much lower price than dealer parts, with the usual uncertainty in aftermarket longevity.
5. MNJWS Timing Belt and Water Pump Kit for Honda/Acura V6 Engines
| Compatible engines/years | Acura TSX 2010–2014 (3.5L V6 compatibility listed) |
|---|---|
| Includes | Timing belt, water pump, tensioner, idler, seals, gaskets, pulleys |
| Manufacturer | MNJWS |
| Item model number | TCKWP329 |
This MNJWS kit supplies the timing belt, water pump, tensioner, idler, seals, gaskets and related pulleys needed when servicing the timing system on compatible V6 Acura and Honda engines. It is intended for full timing-system replacement jobs where the water pump is changed at the same time to avoid repeat labor. Installation is labor intensive and typically performed during a scheduled timing service, but the kit groups everything into a single purchase so you do not need to source separate parts. Buyers report the kit fits like a direct factory-replacement on many vehicles and that the included tensioner and seals simplify reassembly. Quality reports are mixed: many owners say components closely match factory fit and function, while a minority report early failures of tensioners or belt issues. Because timing components are critical to engine health, this kit is best used with careful inspection at install and by experienced installers or shops prepared to torque and time the engine properly.
Best for: Risk-averse mainstream buyers who prioritize avoiding repeat repairs and prefer a single packaged solution when scheduling a professional timing system service.
Less Ideal for: Do not choose this if you insist on factory-original parts from the vehicle manufacturer or if you plan a DIY repair without strong mechanical experience and the correct tools.
- All major timing components plus water pump and gaskets included for a one-stop repair.
- Many buyers report fit and compatibility consistent with factory replacement on compatible V6 models.
- Bundled kit can save time and simplify a labor-intensive timing system service.
- Includes seals and pulleys so ancillary leaks and wear items are addressed during the service.
- Quality is variable across units with some reports of premature tensioner or belt failure.
- Not a genuine factory part so long-term durability can differ from OEM alternatives.
- Installation remains complex and requires proper timing and torque procedures to avoid engine damage.
Verdict A convenient all-in-one timing kit that simplifies a major V6 timing service but has mixed long-term reliability compared with factory-brand options.
6. AISIN WPH-801 Engine Water Pump with Gasket
| Manufacturer | Aisin |
|---|---|
| Material | Carbon Ceramic |
| Position | Front, Rear |
| OEM Part Number | 19200 RDM A02, 19200RDMA02 |
This Aisin WPH-801 is a factory-quality replacement water pump that circulates coolant through the engine and replaces worn or failed pumps on compatible V6 Honda and Acura engines. It ships with the gasket needed for installation and uses carbon ceramic mechanical sealing and ball bearings to resist leakage and reduce wear. In practice the pump installs like a direct replacement and is commonly fitted when doing timing-belt or cooling-system service. Buyers will appreciate the smooth coolant channels and materials chosen to resist rust, corrosion, and scaling, which support longer service life compared with inexpensive aftermarket alternatives. Some users report exceptional longevity and OEM-level fitment, while a few noted impeller differences that affected fit on nonstandard engines. Expect a component that matches factory form and function in most TSX engine configurations, but confirm engine-specific fitment before buying since variations in engine options can change compatibility.
Best for: Practical optimizers who want a long-lasting, factory-quality replacement for routine cooling or timing-belt service on an Acura TSX without paying dealer markup.
Less Ideal for: If you need a universal or multi-vehicle pump or are repairing a nonstandard engine conversion, this vehicle-specific replacement is not the right choice.
- Factory-quality design with carbon ceramic mechanical seal for improved leak resistance
- Includes gasket for a one-stop replacement during timing-belt or cooling work
- Smooth coolant flow channels and efficient rotor design to support consistent cooling
- Crafted from new components rather than remanufactured parts
- Compatibility depends on engine variant so fit must be verified for the TSX configuration
- Some reports of impeller geometry differences on rare units that prevented proper rotation
Verdict Aisin WPH-801 gives TSX owners a near-OEM replacement with durable sealing and reliable cooling at a much better value than dealer parts.
7. Nakuuly Timing Belt Kit with Water Pump (TCKWP329)
| Brand | Nakuuly |
|---|---|
| Material | Cast Iron |
| Vehicle Service Type | Car |
| Position | Front |
This timing belt kit pairs a replacement water pump with the belt, tensioner, idlers and front seals so you can service the timing system and related front-end components in one job. For the Acura TSX it provides the core parts needed when the belt is due or when the pump shows wear, letting a technician replace both items to avoid a second labor cycle. The kit includes the hydraulic tensioner, idler pulleys, cam and crank seals and a serpentine belt, which simplifies parts sourcing and reduces installation guesswork. Many buyers report straightforward fit and correct coverage when installed by a mechanic, and the included seals and pump mean a comprehensive refresh rather than a belt-only repair. Downsides are mixed quality reports for the pump and tensioner in some reviews and a few failures under long-term use, so this kit is best for owners who want an economical complete replacement and are willing to inspect critical components during installation or swap a questionable pump/tensioner for a higher-end unit if desired.
Best for: Balanced owners who prioritize a single-stop solution for scheduled timing service and prefer the convenience of buying a full kit to reduce parts sourcing and repeat labor.
Less Ideal for: Owners seeking the highest-end, long-life individual components or those unwilling to inspect or swap specific parts during installation should consider premium OEM or upgraded aftermarket components instead.
- Complete kit includes water pump, timing belt, hydraulic tensioner, idler pulleys and front seals for a single-service install.
- Matches factory coverage for Acura TSX V6 timing system so you avoid sourcing multiple parts separately.
- Simplifies maintenance by bundling cam and crank seals plus serpentine belt with the timing components.
- Many users report correct fit and easy installation when done by a professional mechanic.
- Some reviewers report lower build quality for the water pump and tensioner compared with factory units.
- There are documented cases of premature failures on long-term/ high-mileage use.
- Quality control appears variable between batches, so occasional parts replacement may be necessary during installation.
Verdict A convenient, budget-friendly all-in-one timing belt and water pump kit that suits routine TSX timing service but may require careful inspection or selective part upgrades due to variable component quality.
Choosing the Right Acura TSX Water Pump: Key Factors to Consider
Fitment and Compatibility
Exact fitment is essential because the water pump must mate precisely to the engine block, coolant passages, and accessory drive. Incorrect flange dimensions or inlet/outlet placement can cause leaks, strained hoses, or interference with belts and pulleys.
Verify mounting bolt patterns, shaft orientation, and whether the pump is intended for your TSX model year and engine variant. Properly matched fit reduces installation time and the risk of coolant loss caused by poor sealing or misalignment.
Bearing and Shaft Quality
The bearing and shaft assembly supports the impeller at high rotational speeds and under thermal cycling. Bearings with higher grade materials and tighter tolerances run cooler and last longer, reducing the chance of wobble that leads to seal failure.
Look for designs with sealed, low-friction bearings and corrosion-resistant shafts. Better bearing assemblies typically translate to quieter operation and a lower likelihood of premature failure from bearing wear or contamination.
Seal Design and Material
The mechanical seal prevents coolant from leaking along the pump shaft, so material choice and the sealing method matter a great deal. Seals that resist degradation from coolant additives and heat cycles maintain integrity longer and reduce leak risk.
Consider pumps that use high-quality elastomers or composite faces paired with reliable spring retention. A robust seal design lowers the chance of coolant seepage and helps avoid secondary damage to belts, pulleys, or nearby accessories.
Impeller Construction
The impeller moves coolant through the engine cooling passages, so its shape and material affect flow efficiency and durability. Metal impellers are typically more resistant to cavitation and long-term wear, while some engineered plastics offer corrosion resistance with lighter weight.
Assess the impeller profile for smooth flow and minimal turbulence, and prefer materials that withstand the TSX operating temperatures and coolant chemistry. A well-designed impeller promotes consistent cooling and reduces stress on the drive mechanism.
Corrosion and Material Resistance
Water pumps operate in a chemically active environment and must resist corrosion from coolant additives and condensation. Housings, fasteners, and internal components that resist rust and galvanic reaction will maintain sealing surfaces and clearances longer.
Choose pumps with corrosion-resistant coatings or materials and compatible metallurgy to prevent accelerated wear. Durable materials help preserve performance over time and reduce the chance of leaks from degraded mating surfaces.
Ease of Installation and Serviceability
Installation complexity affects labor time and the chance of installation-related problems. Pumps that come with clear fitment notes, quality gaskets or seals, and bolt hardware reduce rework and leak risk.
Consider whether the design allows replacing seals or bearings without full assembly replacement, and whether alignment points or locator dowels ease proper positioning. Good documentation and included components simplify the job for technicians and DIYers alike.
FAQ
How can I tell if the Acura TSX water pump is failing?
Common signs include coolant leaks under the vehicle, a rising engine temperature, and unusual noises near the front of the engine that may indicate bearing wear. You may also notice coolant on the accessory belt or a sweet smell from coolant. Diagnosis usually involves a visual inspection for leaks and checking for play in the pump shaft.
Is it necessary to replace the thermostat when replacing the water pump?
It is often recommended because the thermostat is a related cooling system component that ages on a similar schedule. Replacing both parts together can reduce the chance of future overlap failures and saves labor if the pump is already removed. The decision depends on the thermostat’s condition and maintenance history.
Can I install a water pump on my Acura TSX myself?
Many experienced DIYers can perform the replacement with the appropriate tools and a service manual. The job typically requires draining coolant, removing accessory components, and following torque specs for bolts. If you are uncomfortable with these steps or lack the tools, a professional installation reduces the risk of leaks or incorrect assembly.
What causes a water pump to develop coolant leaks?
Leaks commonly originate from a failed shaft seal, degraded gaskets, or corrosion at the housing mating surfaces. Bearing wear can also allow shaft movement that compromises the seal. Regular coolant maintenance and using the correct coolant type reduce the likelihood of seal and housing degradation.
How long does a water pump typically last on an Acura TSX?
Lifespan varies with driving conditions, coolant maintenance, and pump design. Many pumps last well beyond typical service intervals, while others may fail sooner due to bearing wear or seal issues. Monitoring for early signs of failure and adhering to recommended coolant service intervals helps maximize pump life.
How We Chose the Best Acura TSX Water Pump
Our shortlist focuses on water pumps that reliably restore coolant flow and minimize the risk of leaks or premature failure. We prioritized exact fitment for the Acura TSX, robust bearing and seal design, and construction materials resistant to corrosion and wear. Long-term durability under typical driving conditions, resistance to common failure modes such as seal degradation and bearing wear, and clear installation guidance or compatibility notes were key selection filters.We also weighed warranty support and availability of replacement seals to reflect ownership realities. We excluded units lacking documented fitment for the Acura TSX, pumps with unclear materials or substandard bearing specifications, and products with insufficient documentation for install procedures. The resulting picks reflect pumps that balance dependable performance, serviceability, and proven component quality.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize exact fitment, durable bearings and seals, and corrosion-resistant materials when selecting an Acura TSX water pump. Balance ease of installation and impeller design against long-term reliability to reduce the chance of leaks or premature failure.If you maintain coolant service intervals and address symptoms early, you can extend pump life and avoid more serious engine overheating problems. Focus on the factors discussed to choose a pump that matches your vehicle’s needs and service expectations.
Explore More:
- Check out all Acura TSX parts & accessories
- Explore Water Pumps Maintenance & Repair Guides
- Explore Cooling System
- Browse all Auto Parts
